[18754] | 1 | <?php |
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| 2 | // vim: set et ts=4 sw=4 fdm=marker: |
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| 3 | // +----------------------------------------------------------------------+ |
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| 4 | // | PHP versions 4 and 5 | |
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| 5 | // +----------------------------------------------------------------------+ |
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| 6 | // | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox, | |
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| 7 | // | Stig. S. Bakken, Lukas Smith | |
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| 8 | // | All rights reserved. | |
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| 9 | // +----------------------------------------------------------------------+ |
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| 10 | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | |
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| 11 | // | API as well as database abstraction for PHP applications. | |
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| 12 | // | This LICENSE is in the BSD license style. | |
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| 13 | // | | |
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| 14 | // | Redistribution and use in source and binary forms, with or without | |
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| 15 | // | modification, are permitted provided that the following conditions | |
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| 16 | // | are met: | |
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| 17 | // | | |
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| 18 | // | Redistributions of source code must retain the above copyright | |
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| 19 | // | notice, this list of conditions and the following disclaimer. | |
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| 20 | // | | |
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| 21 | // | Redistributions in binary form must reproduce the above copyright | |
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| 22 | // | notice, this list of conditions and the following disclaimer in the | |
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| 23 | // | documentation and/or other materials provided with the distribution. | |
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| 24 | // | | |
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| 25 | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | |
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| 26 | // | Lukas Smith nor the names of his contributors may be used to endorse | |
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| 27 | // | or promote products derived from this software without specific prior| |
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| 28 | // | written permission. | |
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| 29 | // | | |
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| 30 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
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| 31 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
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| 32 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
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| 33 | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
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| 34 | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
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| 35 | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
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| 36 | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| |
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| 37 | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
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| 38 | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
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| 39 | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| |
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| 40 | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
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| 41 | // | POSSIBILITY OF SUCH DAMAGE. | |
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| 42 | // +----------------------------------------------------------------------+ |
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| 43 | // | Author: Paul Cooper <pgc@ucecom.com> | |
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| 44 | // +----------------------------------------------------------------------+ |
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| 45 | // |
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[23022] | 46 | // $Id: pgsql.php 327317 2012-08-27 15:17:08Z danielc $ |
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[18754] | 47 | |
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| 48 | /** |
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| 49 | * MDB2 PostGreSQL driver |
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| 50 | * |
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| 51 | * @package MDB2 |
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| 52 | * @category Database |
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| 53 | * @author Paul Cooper <pgc@ucecom.com> |
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| 54 | */ |
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| 55 | class MDB2_Driver_pgsql extends MDB2_Driver_Common |
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| 56 | { |
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| 57 | // {{{ properties |
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| 58 | var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => '\\'); |
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| 59 | |
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| 60 | var $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"'); |
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| 61 | // }}} |
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| 62 | // {{{ constructor |
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| 63 | |
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| 64 | /** |
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| 65 | * Constructor |
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| 66 | */ |
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| 67 | function __construct() |
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| 68 | { |
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| 69 | parent::__construct(); |
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| 70 | |
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| 71 | $this->phptype = 'pgsql'; |
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| 72 | $this->dbsyntax = 'pgsql'; |
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| 73 | |
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| 74 | $this->supported['sequences'] = true; |
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| 75 | $this->supported['indexes'] = true; |
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| 76 | $this->supported['affected_rows'] = true; |
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| 77 | $this->supported['summary_functions'] = true; |
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| 78 | $this->supported['order_by_text'] = true; |
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| 79 | $this->supported['transactions'] = true; |
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| 80 | $this->supported['savepoints'] = true; |
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| 81 | $this->supported['current_id'] = true; |
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| 82 | $this->supported['limit_queries'] = true; |
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| 83 | $this->supported['LOBs'] = true; |
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| 84 | $this->supported['replace'] = 'emulated'; |
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| 85 | $this->supported['sub_selects'] = true; |
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| 86 | $this->supported['triggers'] = true; |
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| 87 | $this->supported['auto_increment'] = 'emulated'; |
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| 88 | $this->supported['primary_key'] = true; |
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| 89 | $this->supported['result_introspection'] = true; |
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| 90 | $this->supported['prepared_statements'] = true; |
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| 91 | $this->supported['identifier_quoting'] = true; |
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| 92 | $this->supported['pattern_escaping'] = true; |
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| 93 | $this->supported['new_link'] = true; |
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| 94 | |
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| 95 | $this->options['DBA_username'] = false; |
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| 96 | $this->options['DBA_password'] = false; |
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| 97 | $this->options['multi_query'] = false; |
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| 98 | $this->options['disable_smart_seqname'] = true; |
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| 99 | $this->options['max_identifiers_length'] = 63; |
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| 100 | } |
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| 101 | |
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| 102 | // }}} |
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| 103 | // {{{ errorInfo() |
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| 104 | |
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| 105 | /** |
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| 106 | * This method is used to collect information about an error |
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| 107 | * |
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| 108 | * @param integer $error |
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| 109 | * @return array |
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| 110 | * @access public |
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| 111 | */ |
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| 112 | function errorInfo($error = null) |
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| 113 | { |
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| 114 | // Fall back to MDB2_ERROR if there was no mapping. |
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| 115 | $error_code = MDB2_ERROR; |
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| 116 | |
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| 117 | $native_msg = ''; |
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| 118 | if (is_resource($error)) { |
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| 119 | $native_msg = @pg_result_error($error); |
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| 120 | } elseif ($this->connection) { |
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| 121 | $native_msg = @pg_last_error($this->connection); |
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| 122 | if (!$native_msg && @pg_connection_status($this->connection) === PGSQL_CONNECTION_BAD) { |
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| 123 | $native_msg = 'Database connection has been lost.'; |
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| 124 | $error_code = MDB2_ERROR_CONNECT_FAILED; |
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| 125 | } |
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| 126 | } else { |
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| 127 | $native_msg = @pg_last_error(); |
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| 128 | } |
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| 129 | |
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| 130 | static $error_regexps; |
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| 131 | if (empty($error_regexps)) { |
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| 132 | $error_regexps = array( |
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| 133 | '/column .* (of relation .*)?does not exist/i' |
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| 134 | => MDB2_ERROR_NOSUCHFIELD, |
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| 135 | '/(relation|sequence|table).*does not exist|class .* not found/i' |
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| 136 | => MDB2_ERROR_NOSUCHTABLE, |
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| 137 | '/database .* does not exist/' |
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| 138 | => MDB2_ERROR_NOT_FOUND, |
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| 139 | '/constraint .* does not exist/' |
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| 140 | => MDB2_ERROR_NOT_FOUND, |
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| 141 | '/index .* does not exist/' |
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| 142 | => MDB2_ERROR_NOT_FOUND, |
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| 143 | '/database .* already exists/i' |
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| 144 | => MDB2_ERROR_ALREADY_EXISTS, |
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| 145 | '/relation .* already exists/i' |
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| 146 | => MDB2_ERROR_ALREADY_EXISTS, |
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| 147 | '/(divide|division) by zero$/i' |
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| 148 | => MDB2_ERROR_DIVZERO, |
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| 149 | '/pg_atoi: error in .*: can\'t parse /i' |
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| 150 | => MDB2_ERROR_INVALID_NUMBER, |
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| 151 | '/invalid input syntax for( type)? (integer|numeric)/i' |
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| 152 | => MDB2_ERROR_INVALID_NUMBER, |
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| 153 | '/value .* is out of range for type \w*int/i' |
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| 154 | => MDB2_ERROR_INVALID_NUMBER, |
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| 155 | '/integer out of range/i' |
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| 156 | => MDB2_ERROR_INVALID_NUMBER, |
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| 157 | '/value too long for type character/i' |
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| 158 | => MDB2_ERROR_INVALID, |
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| 159 | '/attribute .* not found|relation .* does not have attribute/i' |
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| 160 | => MDB2_ERROR_NOSUCHFIELD, |
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| 161 | '/column .* specified in USING clause does not exist in (left|right) table/i' |
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| 162 | => MDB2_ERROR_NOSUCHFIELD, |
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| 163 | '/parser: parse error at or near/i' |
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| 164 | => MDB2_ERROR_SYNTAX, |
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| 165 | '/syntax error at/' |
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| 166 | => MDB2_ERROR_SYNTAX, |
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| 167 | '/column reference .* is ambiguous/i' |
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| 168 | => MDB2_ERROR_SYNTAX, |
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| 169 | '/permission denied/' |
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| 170 | => MDB2_ERROR_ACCESS_VIOLATION, |
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| 171 | '/violates not-null constraint/' |
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| 172 | => MDB2_ERROR_CONSTRAINT_NOT_NULL, |
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| 173 | '/violates [\w ]+ constraint/' |
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| 174 | => MDB2_ERROR_CONSTRAINT, |
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| 175 | '/referential integrity violation/' |
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| 176 | => MDB2_ERROR_CONSTRAINT, |
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| 177 | '/more expressions than target columns/i' |
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| 178 | => MDB2_ERROR_VALUE_COUNT_ON_ROW, |
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| 179 | ); |
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| 180 | } |
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| 181 | if (is_numeric($error) && $error < 0) { |
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| 182 | $error_code = $error; |
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| 183 | } else { |
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| 184 | foreach ($error_regexps as $regexp => $code) { |
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| 185 | if (preg_match($regexp, $native_msg)) { |
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| 186 | $error_code = $code; |
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| 187 | break; |
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| 188 | } |
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| 189 | } |
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| 190 | } |
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| 191 | return array($error_code, null, $native_msg); |
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| 192 | } |
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| 193 | |
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| 194 | // }}} |
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| 195 | // {{{ escape() |
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| 196 | |
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| 197 | /** |
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| 198 | * Quotes a string so it can be safely used in a query. It will quote |
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| 199 | * the text so it can safely be used within a query. |
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| 200 | * |
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| 201 | * @param string the input string to quote |
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| 202 | * @param bool escape wildcards |
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| 203 | * |
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| 204 | * @return string quoted string |
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| 205 | * |
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| 206 | * @access public |
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| 207 | */ |
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| 208 | function escape($text, $escape_wildcards = false) |
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| 209 | { |
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| 210 | if ($escape_wildcards) { |
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| 211 | $text = $this->escapePattern($text); |
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| 212 | } |
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| 213 | $connection = $this->getConnection(); |
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[23022] | 214 | if (MDB2::isError($connection)) { |
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[18754] | 215 | return $connection; |
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| 216 | } |
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| 217 | if (is_resource($connection) && version_compare(PHP_VERSION, '5.2.0RC5', '>=')) { |
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| 218 | $text = @pg_escape_string($connection, $text); |
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| 219 | } else { |
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| 220 | $text = @pg_escape_string($text); |
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| 221 | } |
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| 222 | return $text; |
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| 223 | } |
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| 224 | |
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| 225 | // }}} |
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| 226 | // {{{ beginTransaction() |
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| 227 | |
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| 228 | /** |
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| 229 | * Start a transaction or set a savepoint. |
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| 230 | * |
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| 231 | * @param string name of a savepoint to set |
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| 232 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| 233 | * |
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| 234 | * @access public |
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| 235 | */ |
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| 236 | function beginTransaction($savepoint = null) |
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| 237 | { |
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| 238 | $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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[23022] | 239 | if (null !== $savepoint) { |
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[18754] | 240 | if (!$this->in_transaction) { |
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| 241 | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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| 242 | 'savepoint cannot be released when changes are auto committed', __FUNCTION__); |
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| 243 | } |
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| 244 | $query = 'SAVEPOINT '.$savepoint; |
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| 245 | return $this->_doQuery($query, true); |
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[23022] | 246 | } |
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| 247 | if ($this->in_transaction) { |
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[18754] | 248 | return MDB2_OK; //nothing to do |
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| 249 | } |
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| 250 | if (!$this->destructor_registered && $this->opened_persistent) { |
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| 251 | $this->destructor_registered = true; |
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| 252 | register_shutdown_function('MDB2_closeOpenTransactions'); |
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| 253 | } |
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[23022] | 254 | $result = $this->_doQuery('BEGIN', true); |
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| 255 | if (MDB2::isError($result)) { |
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[18754] | 256 | return $result; |
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| 257 | } |
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| 258 | $this->in_transaction = true; |
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| 259 | return MDB2_OK; |
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| 260 | } |
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| 261 | |
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| 262 | // }}} |
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| 263 | // {{{ commit() |
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| 264 | |
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| 265 | /** |
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| 266 | * Commit the database changes done during a transaction that is in |
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| 267 | * progress or release a savepoint. This function may only be called when |
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| 268 | * auto-committing is disabled, otherwise it will fail. Therefore, a new |
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| 269 | * transaction is implicitly started after committing the pending changes. |
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| 270 | * |
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| 271 | * @param string name of a savepoint to release |
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| 272 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| 273 | * |
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| 274 | * @access public |
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| 275 | */ |
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| 276 | function commit($savepoint = null) |
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| 277 | { |
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| 278 | $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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| 279 | if (!$this->in_transaction) { |
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| 280 | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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| 281 | 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__); |
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| 282 | } |
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[23022] | 283 | if (null !== $savepoint) { |
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[18754] | 284 | $query = 'RELEASE SAVEPOINT '.$savepoint; |
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| 285 | return $this->_doQuery($query, true); |
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| 286 | } |
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| 287 | |
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[23022] | 288 | $result = $this->_doQuery('COMMIT', true); |
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| 289 | if (MDB2::isError($result)) { |
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[18754] | 290 | return $result; |
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| 291 | } |
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| 292 | $this->in_transaction = false; |
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| 293 | return MDB2_OK; |
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| 294 | } |
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| 295 | |
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| 296 | // }}} |
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| 297 | // {{{ rollback() |
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| 298 | |
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| 299 | /** |
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| 300 | * Cancel any database changes done during a transaction or since a specific |
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| 301 | * savepoint that is in progress. This function may only be called when |
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| 302 | * auto-committing is disabled, otherwise it will fail. Therefore, a new |
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| 303 | * transaction is implicitly started after canceling the pending changes. |
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| 304 | * |
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| 305 | * @param string name of a savepoint to rollback to |
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| 306 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| 307 | * |
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| 308 | * @access public |
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| 309 | */ |
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| 310 | function rollback($savepoint = null) |
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| 311 | { |
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| 312 | $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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| 313 | if (!$this->in_transaction) { |
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| 314 | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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| 315 | 'rollback cannot be done changes are auto committed', __FUNCTION__); |
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| 316 | } |
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[23022] | 317 | if (null !== $savepoint) { |
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[18754] | 318 | $query = 'ROLLBACK TO SAVEPOINT '.$savepoint; |
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| 319 | return $this->_doQuery($query, true); |
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| 320 | } |
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| 321 | |
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| 322 | $query = 'ROLLBACK'; |
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[23022] | 323 | $result = $this->_doQuery($query, true); |
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| 324 | if (MDB2::isError($result)) { |
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[18754] | 325 | return $result; |
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| 326 | } |
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| 327 | $this->in_transaction = false; |
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| 328 | return MDB2_OK; |
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| 329 | } |
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| 330 | |
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| 331 | // }}} |
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| 332 | // {{{ function setTransactionIsolation() |
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| 333 | |
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| 334 | /** |
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| 335 | * Set the transacton isolation level. |
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| 336 | * |
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| 337 | * @param string standard isolation level |
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| 338 | * READ UNCOMMITTED (allows dirty reads) |
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| 339 | * READ COMMITTED (prevents dirty reads) |
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| 340 | * REPEATABLE READ (prevents nonrepeatable reads) |
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| 341 | * SERIALIZABLE (prevents phantom reads) |
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[23022] | 342 | * @param array some transaction options: |
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| 343 | * 'wait' => 'WAIT' | 'NO WAIT' |
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| 344 | * 'rw' => 'READ WRITE' | 'READ ONLY' |
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| 345 | * |
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[18754] | 346 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| 347 | * |
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| 348 | * @access public |
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| 349 | * @since 2.1.1 |
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| 350 | */ |
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[23022] | 351 | function setTransactionIsolation($isolation, $options = array()) |
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[18754] | 352 | { |
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| 353 | $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true)); |
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| 354 | switch ($isolation) { |
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| 355 | case 'READ UNCOMMITTED': |
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| 356 | case 'READ COMMITTED': |
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| 357 | case 'REPEATABLE READ': |
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| 358 | case 'SERIALIZABLE': |
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| 359 | break; |
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| 360 | default: |
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| 361 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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| 362 | 'isolation level is not supported: '.$isolation, __FUNCTION__); |
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| 363 | } |
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| 364 | |
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| 365 | $query = "SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL $isolation"; |
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| 366 | return $this->_doQuery($query, true); |
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| 367 | } |
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| 368 | |
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| 369 | // }}} |
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| 370 | // {{{ _doConnect() |
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| 371 | |
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| 372 | /** |
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| 373 | * Do the grunt work of connecting to the database |
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| 374 | * |
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| 375 | * @return mixed connection resource on success, MDB2 Error Object on failure |
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| 376 | * @access protected |
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| 377 | */ |
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| 378 | function _doConnect($username, $password, $database_name, $persistent = false) |
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| 379 | { |
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[23022] | 380 | if (!extension_loaded($this->phptype)) { |
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[18754] | 381 | return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, |
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| 382 | 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__); |
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| 383 | } |
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[23022] | 384 | |
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[18754] | 385 | if ($database_name == '') { |
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| 386 | $database_name = 'template1'; |
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| 387 | } |
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| 388 | |
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| 389 | $protocol = $this->dsn['protocol'] ? $this->dsn['protocol'] : 'tcp'; |
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| 390 | |
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| 391 | $params = array(''); |
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| 392 | if ($protocol == 'tcp') { |
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| 393 | if ($this->dsn['hostspec']) { |
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| 394 | $params[0].= 'host=' . $this->dsn['hostspec']; |
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| 395 | } |
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| 396 | if ($this->dsn['port']) { |
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| 397 | $params[0].= ' port=' . $this->dsn['port']; |
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| 398 | } |
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| 399 | } elseif ($protocol == 'unix') { |
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| 400 | // Allow for pg socket in non-standard locations. |
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| 401 | if ($this->dsn['socket']) { |
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| 402 | $params[0].= 'host=' . $this->dsn['socket']; |
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| 403 | } |
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| 404 | if ($this->dsn['port']) { |
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| 405 | $params[0].= ' port=' . $this->dsn['port']; |
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| 406 | } |
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| 407 | } |
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| 408 | if ($database_name) { |
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| 409 | $params[0].= ' dbname=\'' . addslashes($database_name) . '\''; |
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| 410 | } |
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| 411 | if ($username) { |
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| 412 | $params[0].= ' user=\'' . addslashes($username) . '\''; |
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| 413 | } |
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| 414 | if ($password) { |
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| 415 | $params[0].= ' password=\'' . addslashes($password) . '\''; |
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| 416 | } |
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| 417 | if (!empty($this->dsn['options'])) { |
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| 418 | $params[0].= ' options=' . $this->dsn['options']; |
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| 419 | } |
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| 420 | if (!empty($this->dsn['tty'])) { |
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| 421 | $params[0].= ' tty=' . $this->dsn['tty']; |
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| 422 | } |
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| 423 | if (!empty($this->dsn['connect_timeout'])) { |
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| 424 | $params[0].= ' connect_timeout=' . $this->dsn['connect_timeout']; |
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| 425 | } |
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| 426 | if (!empty($this->dsn['sslmode'])) { |
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| 427 | $params[0].= ' sslmode=' . $this->dsn['sslmode']; |
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| 428 | } |
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| 429 | if (!empty($this->dsn['service'])) { |
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| 430 | $params[0].= ' service=' . $this->dsn['service']; |
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| 431 | } |
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| 432 | |
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| 433 | if ($this->_isNewLinkSet()) { |
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| 434 | if (version_compare(phpversion(), '4.3.0', '>=')) { |
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| 435 | $params[] = PGSQL_CONNECT_FORCE_NEW; |
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| 436 | } |
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| 437 | } |
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| 438 | |
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| 439 | $connect_function = $persistent ? 'pg_pconnect' : 'pg_connect'; |
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| 440 | $connection = @call_user_func_array($connect_function, $params); |
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| 441 | if (!$connection) { |
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| 442 | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, |
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| 443 | 'unable to establish a connection', __FUNCTION__); |
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| 444 | } |
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| 445 | |
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| 446 | if (empty($this->dsn['disable_iso_date'])) { |
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| 447 | if (!@pg_query($connection, "SET SESSION DATESTYLE = 'ISO'")) { |
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| 448 | return $this->raiseError(null, null, null, |
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| 449 | 'Unable to set date style to iso', __FUNCTION__); |
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| 450 | } |
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| 451 | } |
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| 452 | |
---|
| 453 | if (!empty($this->dsn['charset'])) { |
---|
| 454 | $result = $this->setCharset($this->dsn['charset'], $connection); |
---|
[23022] | 455 | if (MDB2::isError($result)) { |
---|
[18754] | 456 | return $result; |
---|
| 457 | } |
---|
| 458 | } |
---|
| 459 | |
---|
[23022] | 460 | // Enable extra compatibility settings on 8.2 and later |
---|
| 461 | if (function_exists('pg_parameter_status')) { |
---|
| 462 | $version = pg_parameter_status($connection, 'server_version'); |
---|
| 463 | if ($version == false) { |
---|
| 464 | return $this->raiseError(null, null, null, |
---|
| 465 | 'Unable to retrieve server version', __FUNCTION__); |
---|
| 466 | } |
---|
| 467 | $version = explode ('.', $version); |
---|
| 468 | if ( $version['0'] > 8 |
---|
| 469 | || ($version['0'] == 8 && $version['1'] >= 2) |
---|
| 470 | ) { |
---|
| 471 | if (!@pg_query($connection, "SET SESSION STANDARD_CONFORMING_STRINGS = OFF")) { |
---|
| 472 | return $this->raiseError(null, null, null, |
---|
| 473 | 'Unable to set standard_conforming_strings to off', __FUNCTION__); |
---|
| 474 | } |
---|
| 475 | |
---|
| 476 | if (!@pg_query($connection, "SET SESSION ESCAPE_STRING_WARNING = OFF")) { |
---|
| 477 | return $this->raiseError(null, null, null, |
---|
| 478 | 'Unable to set escape_string_warning to off', __FUNCTION__); |
---|
| 479 | } |
---|
| 480 | } |
---|
| 481 | } |
---|
| 482 | |
---|
[18754] | 483 | return $connection; |
---|
| 484 | } |
---|
| 485 | |
---|
| 486 | // }}} |
---|
| 487 | // {{{ connect() |
---|
| 488 | |
---|
| 489 | /** |
---|
| 490 | * Connect to the database |
---|
| 491 | * |
---|
| 492 | * @return true on success, MDB2 Error Object on failure |
---|
| 493 | * @access public |
---|
| 494 | */ |
---|
| 495 | function connect() |
---|
| 496 | { |
---|
| 497 | if (is_resource($this->connection)) { |
---|
| 498 | //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 |
---|
| 499 | if (MDB2::areEquals($this->connected_dsn, $this->dsn) |
---|
| 500 | && $this->connected_database_name == $this->database_name |
---|
| 501 | && ($this->opened_persistent == $this->options['persistent']) |
---|
| 502 | ) { |
---|
| 503 | return MDB2_OK; |
---|
| 504 | } |
---|
| 505 | $this->disconnect(false); |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | if ($this->database_name) { |
---|
| 509 | $connection = $this->_doConnect($this->dsn['username'], |
---|
| 510 | $this->dsn['password'], |
---|
| 511 | $this->database_name, |
---|
| 512 | $this->options['persistent']); |
---|
[23022] | 513 | if (MDB2::isError($connection)) { |
---|
[18754] | 514 | return $connection; |
---|
| 515 | } |
---|
| 516 | |
---|
| 517 | $this->connection = $connection; |
---|
| 518 | $this->connected_dsn = $this->dsn; |
---|
| 519 | $this->connected_database_name = $this->database_name; |
---|
| 520 | $this->opened_persistent = $this->options['persistent']; |
---|
| 521 | $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype; |
---|
| 522 | } |
---|
| 523 | |
---|
| 524 | return MDB2_OK; |
---|
| 525 | } |
---|
| 526 | |
---|
| 527 | // }}} |
---|
| 528 | // {{{ setCharset() |
---|
| 529 | |
---|
| 530 | /** |
---|
| 531 | * Set the charset on the current connection |
---|
| 532 | * |
---|
| 533 | * @param string charset |
---|
| 534 | * @param resource connection handle |
---|
| 535 | * |
---|
| 536 | * @return true on success, MDB2 Error Object on failure |
---|
| 537 | */ |
---|
| 538 | function setCharset($charset, $connection = null) |
---|
| 539 | { |
---|
[23022] | 540 | if (null === $connection) { |
---|
[18754] | 541 | $connection = $this->getConnection(); |
---|
[23022] | 542 | if (MDB2::isError($connection)) { |
---|
[18754] | 543 | return $connection; |
---|
| 544 | } |
---|
| 545 | } |
---|
| 546 | if (is_array($charset)) { |
---|
| 547 | $charset = array_shift($charset); |
---|
| 548 | $this->warnings[] = 'postgresql does not support setting client collation'; |
---|
| 549 | } |
---|
| 550 | $result = @pg_set_client_encoding($connection, $charset); |
---|
| 551 | if ($result == -1) { |
---|
| 552 | return $this->raiseError(null, null, null, |
---|
| 553 | 'Unable to set client charset: '.$charset, __FUNCTION__); |
---|
| 554 | } |
---|
| 555 | return MDB2_OK; |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | // }}} |
---|
| 559 | // {{{ databaseExists() |
---|
| 560 | |
---|
| 561 | /** |
---|
| 562 | * check if given database name is exists? |
---|
| 563 | * |
---|
| 564 | * @param string $name name of the database that should be checked |
---|
| 565 | * |
---|
| 566 | * @return mixed true/false on success, a MDB2 error on failure |
---|
| 567 | * @access public |
---|
| 568 | */ |
---|
| 569 | function databaseExists($name) |
---|
| 570 | { |
---|
| 571 | $res = $this->_doConnect($this->dsn['username'], |
---|
| 572 | $this->dsn['password'], |
---|
| 573 | $this->escape($name), |
---|
| 574 | $this->options['persistent']); |
---|
[23022] | 575 | if (!MDB2::isError($res)) { |
---|
[18754] | 576 | return true; |
---|
| 577 | } |
---|
| 578 | |
---|
| 579 | return false; |
---|
| 580 | } |
---|
| 581 | |
---|
| 582 | // }}} |
---|
| 583 | // {{{ disconnect() |
---|
| 584 | |
---|
| 585 | /** |
---|
| 586 | * Log out and disconnect from the database. |
---|
| 587 | * |
---|
| 588 | * @param boolean $force if the disconnect should be forced even if the |
---|
| 589 | * connection is opened persistently |
---|
| 590 | * @return mixed true on success, false if not connected and error |
---|
| 591 | * object on error |
---|
| 592 | * @access public |
---|
| 593 | */ |
---|
| 594 | function disconnect($force = true) |
---|
| 595 | { |
---|
| 596 | if (is_resource($this->connection)) { |
---|
| 597 | if ($this->in_transaction) { |
---|
| 598 | $dsn = $this->dsn; |
---|
| 599 | $database_name = $this->database_name; |
---|
| 600 | $persistent = $this->options['persistent']; |
---|
| 601 | $this->dsn = $this->connected_dsn; |
---|
| 602 | $this->database_name = $this->connected_database_name; |
---|
| 603 | $this->options['persistent'] = $this->opened_persistent; |
---|
| 604 | $this->rollback(); |
---|
| 605 | $this->dsn = $dsn; |
---|
| 606 | $this->database_name = $database_name; |
---|
| 607 | $this->options['persistent'] = $persistent; |
---|
| 608 | } |
---|
| 609 | |
---|
| 610 | if (!$this->opened_persistent || $force) { |
---|
| 611 | $ok = @pg_close($this->connection); |
---|
| 612 | if (!$ok) { |
---|
| 613 | return $this->raiseError(MDB2_ERROR_DISCONNECT_FAILED, |
---|
| 614 | null, null, null, __FUNCTION__); |
---|
| 615 | } |
---|
| 616 | } |
---|
| 617 | } else { |
---|
| 618 | return false; |
---|
| 619 | } |
---|
| 620 | return parent::disconnect($force); |
---|
| 621 | } |
---|
| 622 | |
---|
| 623 | // }}} |
---|
| 624 | // {{{ standaloneQuery() |
---|
| 625 | |
---|
[23022] | 626 | /** |
---|
[18754] | 627 | * execute a query as DBA |
---|
| 628 | * |
---|
| 629 | * @param string $query the SQL query |
---|
| 630 | * @param mixed $types array that contains the types of the columns in |
---|
| 631 | * the result set |
---|
| 632 | * @param boolean $is_manip if the query is a manipulation query |
---|
| 633 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
| 634 | * @access public |
---|
| 635 | */ |
---|
[23022] | 636 | function standaloneQuery($query, $types = null, $is_manip = false) |
---|
[18754] | 637 | { |
---|
| 638 | $user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username']; |
---|
| 639 | $pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password']; |
---|
| 640 | $connection = $this->_doConnect($user, $pass, $this->database_name, $this->options['persistent']); |
---|
[23022] | 641 | if (MDB2::isError($connection)) { |
---|
[18754] | 642 | return $connection; |
---|
| 643 | } |
---|
| 644 | |
---|
| 645 | $offset = $this->offset; |
---|
| 646 | $limit = $this->limit; |
---|
| 647 | $this->offset = $this->limit = 0; |
---|
| 648 | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); |
---|
| 649 | |
---|
[23022] | 650 | $result = $this->_doQuery($query, $is_manip, $connection, $this->database_name); |
---|
| 651 | if (!MDB2::isError($result)) { |
---|
[18754] | 652 | if ($is_manip) { |
---|
| 653 | $result = $this->_affectedRows($connection, $result); |
---|
| 654 | } else { |
---|
[23022] | 655 | $result = $this->_wrapResult($result, $types, true, true, $limit, $offset); |
---|
[18754] | 656 | } |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | @pg_close($connection); |
---|
| 660 | return $result; |
---|
| 661 | } |
---|
| 662 | |
---|
| 663 | // }}} |
---|
| 664 | // {{{ _doQuery() |
---|
| 665 | |
---|
| 666 | /** |
---|
| 667 | * Execute a query |
---|
| 668 | * @param string $query query |
---|
| 669 | * @param boolean $is_manip if the query is a manipulation query |
---|
| 670 | * @param resource $connection |
---|
| 671 | * @param string $database_name |
---|
| 672 | * @return result or error object |
---|
| 673 | * @access protected |
---|
| 674 | */ |
---|
[23022] | 675 | function _doQuery($query, $is_manip = false, $connection = null, $database_name = null) |
---|
[18754] | 676 | { |
---|
| 677 | $this->last_query = $query; |
---|
| 678 | $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre')); |
---|
| 679 | if ($result) { |
---|
[23022] | 680 | if (MDB2::isError($result)) { |
---|
[18754] | 681 | return $result; |
---|
| 682 | } |
---|
| 683 | $query = $result; |
---|
| 684 | } |
---|
| 685 | if ($this->options['disable_query']) { |
---|
| 686 | $result = $is_manip ? 0 : null; |
---|
| 687 | return $result; |
---|
| 688 | } |
---|
| 689 | |
---|
[23022] | 690 | if (null === $connection) { |
---|
[18754] | 691 | $connection = $this->getConnection(); |
---|
[23022] | 692 | if (MDB2::isError($connection)) { |
---|
[18754] | 693 | return $connection; |
---|
| 694 | } |
---|
| 695 | } |
---|
| 696 | |
---|
| 697 | $function = $this->options['multi_query'] ? 'pg_send_query' : 'pg_query'; |
---|
| 698 | $result = @$function($connection, $query); |
---|
| 699 | if (!$result) { |
---|
[23022] | 700 | $err = $this->raiseError(null, null, null, |
---|
[18754] | 701 | 'Could not execute statement', __FUNCTION__); |
---|
| 702 | return $err; |
---|
| 703 | } elseif ($this->options['multi_query']) { |
---|
| 704 | if (!($result = @pg_get_result($connection))) { |
---|
[23022] | 705 | $err = $this->raiseError(null, null, null, |
---|
[18754] | 706 | 'Could not get the first result from a multi query', __FUNCTION__); |
---|
| 707 | return $err; |
---|
| 708 | } |
---|
| 709 | } |
---|
| 710 | |
---|
| 711 | $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result)); |
---|
| 712 | return $result; |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | // }}} |
---|
| 716 | // {{{ _affectedRows() |
---|
| 717 | |
---|
| 718 | /** |
---|
| 719 | * Returns the number of rows affected |
---|
| 720 | * |
---|
| 721 | * @param resource $result |
---|
| 722 | * @param resource $connection |
---|
| 723 | * @return mixed MDB2 Error Object or the number of rows affected |
---|
| 724 | * @access private |
---|
| 725 | */ |
---|
| 726 | function _affectedRows($connection, $result = null) |
---|
| 727 | { |
---|
[23022] | 728 | if (null === $connection) { |
---|
[18754] | 729 | $connection = $this->getConnection(); |
---|
[23022] | 730 | if (MDB2::isError($connection)) { |
---|
[18754] | 731 | return $connection; |
---|
| 732 | } |
---|
| 733 | } |
---|
| 734 | return @pg_affected_rows($result); |
---|
| 735 | } |
---|
| 736 | |
---|
| 737 | // }}} |
---|
| 738 | // {{{ _modifyQuery() |
---|
| 739 | |
---|
| 740 | /** |
---|
| 741 | * Changes a query string for various DBMS specific reasons |
---|
| 742 | * |
---|
| 743 | * @param string $query query to modify |
---|
| 744 | * @param boolean $is_manip if it is a DML query |
---|
| 745 | * @param integer $limit limit the number of rows |
---|
| 746 | * @param integer $offset start reading from given offset |
---|
| 747 | * @return string modified query |
---|
| 748 | * @access protected |
---|
| 749 | */ |
---|
| 750 | function _modifyQuery($query, $is_manip, $limit, $offset) |
---|
| 751 | { |
---|
| 752 | if ($limit > 0 |
---|
| 753 | && !preg_match('/LIMIT\s*\d(?:\s*(?:,|OFFSET)\s*\d+)?(?:[^\)]*)?$/i', $query) |
---|
| 754 | ) { |
---|
| 755 | $query = rtrim($query); |
---|
| 756 | if (substr($query, -1) == ';') { |
---|
| 757 | $query = substr($query, 0, -1); |
---|
| 758 | } |
---|
| 759 | if ($is_manip) { |
---|
| 760 | $query = $this->_modifyManipQuery($query, $limit); |
---|
| 761 | } else { |
---|
| 762 | $query.= " LIMIT $limit OFFSET $offset"; |
---|
| 763 | } |
---|
| 764 | } |
---|
| 765 | return $query; |
---|
| 766 | } |
---|
[23022] | 767 | |
---|
[18754] | 768 | // }}} |
---|
| 769 | // {{{ _modifyManipQuery() |
---|
[23022] | 770 | |
---|
[18754] | 771 | /** |
---|
| 772 | * Changes a manip query string for various DBMS specific reasons |
---|
| 773 | * |
---|
| 774 | * @param string $query query to modify |
---|
| 775 | * @param integer $limit limit the number of rows |
---|
| 776 | * @return string modified query |
---|
| 777 | * @access protected |
---|
| 778 | */ |
---|
| 779 | function _modifyManipQuery($query, $limit) |
---|
| 780 | { |
---|
| 781 | $pos = strpos(strtolower($query), 'where'); |
---|
| 782 | $where = $pos ? substr($query, $pos) : ''; |
---|
| 783 | |
---|
| 784 | $manip_clause = '(\bDELETE\b\s+(?:\*\s+)?\bFROM\b|\bUPDATE\b)'; |
---|
| 785 | $from_clause = '([\w\.]+)'; |
---|
| 786 | $where_clause = '(?:(.*)\bWHERE\b\s+(.*))|(.*)'; |
---|
| 787 | $pattern = '/^'. $manip_clause . '\s+' . $from_clause .'(?:\s)*(?:'. $where_clause .')?$/i'; |
---|
| 788 | $matches = preg_match($pattern, $query, $match); |
---|
| 789 | if ($matches) { |
---|
| 790 | $manip = $match[1]; |
---|
| 791 | $from = $match[2]; |
---|
| 792 | $what = (count($matches) == 6) ? $match[5] : $match[3]; |
---|
| 793 | return $manip.' '.$from.' '.$what.' WHERE ctid=(SELECT ctid FROM '.$from.' '.$where.' LIMIT '.$limit.')'; |
---|
| 794 | } |
---|
| 795 | //return error? |
---|
| 796 | return $query; |
---|
| 797 | } |
---|
| 798 | |
---|
| 799 | // }}} |
---|
| 800 | // {{{ getServerVersion() |
---|
| 801 | |
---|
| 802 | /** |
---|
| 803 | * return version information about the server |
---|
| 804 | * |
---|
| 805 | * @param bool $native determines if the raw version string should be returned |
---|
| 806 | * @return mixed array/string with version information or MDB2 error object |
---|
| 807 | * @access public |
---|
| 808 | */ |
---|
| 809 | function getServerVersion($native = false) |
---|
| 810 | { |
---|
| 811 | $query = 'SHOW SERVER_VERSION'; |
---|
| 812 | if ($this->connected_server_info) { |
---|
| 813 | $server_info = $this->connected_server_info; |
---|
| 814 | } else { |
---|
| 815 | $server_info = $this->queryOne($query, 'text'); |
---|
[23022] | 816 | if (MDB2::isError($server_info)) { |
---|
[18754] | 817 | return $server_info; |
---|
| 818 | } |
---|
| 819 | } |
---|
| 820 | // cache server_info |
---|
| 821 | $this->connected_server_info = $server_info; |
---|
[23022] | 822 | if (!$native && !MDB2::isError($server_info)) { |
---|
[18754] | 823 | $tmp = explode('.', $server_info, 3); |
---|
| 824 | if (empty($tmp[2]) |
---|
| 825 | && isset($tmp[1]) |
---|
| 826 | && preg_match('/(\d+)(.*)/', $tmp[1], $tmp2) |
---|
| 827 | ) { |
---|
| 828 | $server_info = array( |
---|
| 829 | 'major' => $tmp[0], |
---|
| 830 | 'minor' => $tmp2[1], |
---|
| 831 | 'patch' => null, |
---|
| 832 | 'extra' => $tmp2[2], |
---|
| 833 | 'native' => $server_info, |
---|
| 834 | ); |
---|
| 835 | } else { |
---|
| 836 | $server_info = array( |
---|
| 837 | 'major' => isset($tmp[0]) ? $tmp[0] : null, |
---|
| 838 | 'minor' => isset($tmp[1]) ? $tmp[1] : null, |
---|
| 839 | 'patch' => isset($tmp[2]) ? $tmp[2] : null, |
---|
| 840 | 'extra' => null, |
---|
| 841 | 'native' => $server_info, |
---|
| 842 | ); |
---|
| 843 | } |
---|
| 844 | } |
---|
| 845 | return $server_info; |
---|
| 846 | } |
---|
| 847 | |
---|
| 848 | // }}} |
---|
| 849 | // {{{ prepare() |
---|
| 850 | |
---|
| 851 | /** |
---|
| 852 | * Prepares a query for multiple execution with execute(). |
---|
| 853 | * With some database backends, this is emulated. |
---|
| 854 | * prepare() requires a generic query as string like |
---|
| 855 | * 'INSERT INTO numbers VALUES(?,?)' or |
---|
| 856 | * 'INSERT INTO numbers VALUES(:foo,:bar)'. |
---|
| 857 | * The ? and :name and are placeholders which can be set using |
---|
| 858 | * bindParam() and the query can be sent off using the execute() method. |
---|
| 859 | * The allowed format for :name can be set with the 'bindname_format' option. |
---|
| 860 | * |
---|
| 861 | * @param string $query the query to prepare |
---|
| 862 | * @param mixed $types array that contains the types of the placeholders |
---|
| 863 | * @param mixed $result_types array that contains the types of the columns in |
---|
| 864 | * the result set or MDB2_PREPARE_RESULT, if set to |
---|
| 865 | * MDB2_PREPARE_MANIP the query is handled as a manipulation query |
---|
| 866 | * @param mixed $lobs key (field) value (parameter) pair for all lob placeholders |
---|
| 867 | * @return mixed resource handle for the prepared query on success, a MDB2 |
---|
| 868 | * error on failure |
---|
| 869 | * @access public |
---|
| 870 | * @see bindParam, execute |
---|
| 871 | */ |
---|
[23022] | 872 | function prepare($query, $types = null, $result_types = null, $lobs = array()) |
---|
[18754] | 873 | { |
---|
| 874 | if ($this->options['emulate_prepared']) { |
---|
[23022] | 875 | return parent::prepare($query, $types, $result_types, $lobs); |
---|
[18754] | 876 | } |
---|
| 877 | $is_manip = ($result_types === MDB2_PREPARE_MANIP); |
---|
| 878 | $offset = $this->offset; |
---|
| 879 | $limit = $this->limit; |
---|
| 880 | $this->offset = $this->limit = 0; |
---|
| 881 | $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre')); |
---|
| 882 | if ($result) { |
---|
[23022] | 883 | if (MDB2::isError($result)) { |
---|
[18754] | 884 | return $result; |
---|
| 885 | } |
---|
| 886 | $query = $result; |
---|
| 887 | } |
---|
| 888 | $pgtypes = function_exists('pg_prepare') ? false : array(); |
---|
| 889 | if ($pgtypes !== false && !empty($types)) { |
---|
| 890 | $this->loadModule('Datatype', null, true); |
---|
| 891 | } |
---|
| 892 | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); |
---|
| 893 | $placeholder_type_guess = $placeholder_type = null; |
---|
| 894 | $question = '?'; |
---|
| 895 | $colon = ':'; |
---|
| 896 | $positions = array(); |
---|
| 897 | $position = $parameter = 0; |
---|
| 898 | while ($position < strlen($query)) { |
---|
| 899 | $q_position = strpos($query, $question, $position); |
---|
| 900 | $c_position = strpos($query, $colon, $position); |
---|
| 901 | //skip "::type" cast ("select id::varchar(20) from sometable where name=?") |
---|
| 902 | $doublecolon_position = strpos($query, '::', $position); |
---|
| 903 | if ($doublecolon_position !== false && $doublecolon_position == $c_position) { |
---|
| 904 | $c_position = strpos($query, $colon, $position+2); |
---|
| 905 | } |
---|
| 906 | if ($q_position && $c_position) { |
---|
| 907 | $p_position = min($q_position, $c_position); |
---|
| 908 | } elseif ($q_position) { |
---|
| 909 | $p_position = $q_position; |
---|
| 910 | } elseif ($c_position) { |
---|
| 911 | $p_position = $c_position; |
---|
| 912 | } else { |
---|
| 913 | break; |
---|
| 914 | } |
---|
[23022] | 915 | if (null === $placeholder_type) { |
---|
[18754] | 916 | $placeholder_type_guess = $query[$p_position]; |
---|
| 917 | } |
---|
[23022] | 918 | |
---|
[18754] | 919 | $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position); |
---|
[23022] | 920 | if (MDB2::isError($new_pos)) { |
---|
[18754] | 921 | return $new_pos; |
---|
| 922 | } |
---|
| 923 | if ($new_pos != $position) { |
---|
| 924 | $position = $new_pos; |
---|
| 925 | continue; //evaluate again starting from the new position |
---|
| 926 | } |
---|
| 927 | |
---|
| 928 | if ($query[$position] == $placeholder_type_guess) { |
---|
[23022] | 929 | if (null === $placeholder_type) { |
---|
[18754] | 930 | $placeholder_type = $query[$p_position]; |
---|
| 931 | $question = $colon = $placeholder_type; |
---|
| 932 | if (!empty($types) && is_array($types)) { |
---|
| 933 | if ($placeholder_type == ':') { |
---|
| 934 | } else { |
---|
| 935 | $types = array_values($types); |
---|
| 936 | } |
---|
| 937 | } |
---|
| 938 | } |
---|
| 939 | if ($placeholder_type_guess == '?') { |
---|
| 940 | $length = 1; |
---|
| 941 | $name = $parameter; |
---|
| 942 | } else { |
---|
| 943 | $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s'; |
---|
| 944 | $param = preg_replace($regexp, '\\1', $query); |
---|
| 945 | if ($param === '') { |
---|
[23022] | 946 | $err = $this->raiseError(MDB2_ERROR_SYNTAX, null, null, |
---|
[18754] | 947 | 'named parameter name must match "bindname_format" option', __FUNCTION__); |
---|
| 948 | return $err; |
---|
| 949 | } |
---|
| 950 | $length = strlen($param) + 1; |
---|
| 951 | $name = $param; |
---|
| 952 | } |
---|
| 953 | if ($pgtypes !== false) { |
---|
| 954 | if (is_array($types) && array_key_exists($name, $types)) { |
---|
| 955 | $pgtypes[] = $this->datatype->mapPrepareDatatype($types[$name]); |
---|
| 956 | } elseif (is_array($types) && array_key_exists($parameter, $types)) { |
---|
| 957 | $pgtypes[] = $this->datatype->mapPrepareDatatype($types[$parameter]); |
---|
| 958 | } else { |
---|
[23022] | 959 | $pgtypes[] = 'text'; |
---|
[18754] | 960 | } |
---|
| 961 | } |
---|
[23022] | 962 | if (($key_parameter = array_search($name, $positions)) !== false) { |
---|
| 963 | //$next_parameter = 1; |
---|
| 964 | $parameter = $key_parameter + 1; |
---|
| 965 | //foreach ($positions as $key => $value) { |
---|
| 966 | // if ($key_parameter == $key) { |
---|
| 967 | // break; |
---|
| 968 | // } |
---|
| 969 | // ++$next_parameter; |
---|
| 970 | //} |
---|
[18754] | 971 | } else { |
---|
| 972 | ++$parameter; |
---|
[23022] | 973 | //$next_parameter = $parameter; |
---|
[18754] | 974 | $positions[] = $name; |
---|
| 975 | } |
---|
| 976 | $query = substr_replace($query, '$'.$parameter, $position, $length); |
---|
| 977 | $position = $p_position + strlen($parameter); |
---|
| 978 | } else { |
---|
| 979 | $position = $p_position; |
---|
| 980 | } |
---|
| 981 | } |
---|
| 982 | $connection = $this->getConnection(); |
---|
[23022] | 983 | if (MDB2::isError($connection)) { |
---|
[18754] | 984 | return $connection; |
---|
| 985 | } |
---|
| 986 | static $prep_statement_counter = 1; |
---|
| 987 | $statement_name = sprintf($this->options['statement_format'], $this->phptype, $prep_statement_counter++ . sha1(microtime() + mt_rand())); |
---|
| 988 | $statement_name = substr(strtolower($statement_name), 0, $this->options['max_identifiers_length']); |
---|
[23022] | 989 | if (false === $pgtypes) { |
---|
[18754] | 990 | $result = @pg_prepare($connection, $statement_name, $query); |
---|
| 991 | if (!$result) { |
---|
[23022] | 992 | $err = $this->raiseError(null, null, null, |
---|
[18754] | 993 | 'Unable to create prepared statement handle', __FUNCTION__); |
---|
| 994 | return $err; |
---|
| 995 | } |
---|
| 996 | } else { |
---|
| 997 | $types_string = ''; |
---|
| 998 | if ($pgtypes) { |
---|
| 999 | $types_string = ' ('.implode(', ', $pgtypes).') '; |
---|
| 1000 | } |
---|
| 1001 | $query = 'PREPARE '.$statement_name.$types_string.' AS '.$query; |
---|
[23022] | 1002 | $statement = $this->_doQuery($query, true, $connection); |
---|
| 1003 | if (MDB2::isError($statement)) { |
---|
[18754] | 1004 | return $statement; |
---|
| 1005 | } |
---|
| 1006 | } |
---|
| 1007 | |
---|
| 1008 | $class_name = 'MDB2_Statement_'.$this->phptype; |
---|
| 1009 | $obj = new $class_name($this, $statement_name, $positions, $query, $types, $result_types, $is_manip, $limit, $offset); |
---|
| 1010 | $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj)); |
---|
| 1011 | return $obj; |
---|
| 1012 | } |
---|
| 1013 | |
---|
| 1014 | // }}} |
---|
| 1015 | // {{{ function getSequenceName($sqn) |
---|
| 1016 | |
---|
| 1017 | /** |
---|
| 1018 | * adds sequence name formatting to a sequence name |
---|
| 1019 | * |
---|
| 1020 | * @param string name of the sequence |
---|
| 1021 | * |
---|
| 1022 | * @return string formatted sequence name |
---|
| 1023 | * |
---|
| 1024 | * @access public |
---|
| 1025 | */ |
---|
| 1026 | function getSequenceName($sqn) |
---|
| 1027 | { |
---|
| 1028 | if (false === $this->options['disable_smart_seqname']) { |
---|
| 1029 | if (strpos($sqn, '_') !== false) { |
---|
| 1030 | list($table, $field) = explode('_', $sqn, 2); |
---|
| 1031 | } |
---|
| 1032 | $schema_list = $this->queryOne("SELECT array_to_string(current_schemas(false), ',')"); |
---|
[23022] | 1033 | if (MDB2::isError($schema_list) || empty($schema_list) || count($schema_list) < 2) { |
---|
[18754] | 1034 | $order_by = ' a.attnum'; |
---|
| 1035 | $schema_clause = ' AND n.nspname=current_schema()'; |
---|
| 1036 | } else { |
---|
| 1037 | $schemas = explode(',', $schema_list); |
---|
| 1038 | $schema_clause = ' AND n.nspname IN ('.$schema_list.')'; |
---|
| 1039 | $counter = 1; |
---|
| 1040 | $order_by = ' CASE '; |
---|
| 1041 | foreach ($schemas as $schema) { |
---|
| 1042 | $order_by .= ' WHEN n.nspname='.$schema.' THEN '.$counter++; |
---|
| 1043 | } |
---|
| 1044 | $order_by .= ' ELSE '.$counter.' END, a.attnum'; |
---|
| 1045 | } |
---|
| 1046 | |
---|
| 1047 | $query = "SELECT substring((SELECT substring(pg_get_expr(d.adbin, d.adrelid) for 128) |
---|
| 1048 | FROM pg_attrdef d |
---|
| 1049 | WHERE d.adrelid = a.attrelid |
---|
| 1050 | AND d.adnum = a.attnum |
---|
| 1051 | AND a.atthasdef |
---|
| 1052 | ) FROM 'nextval[^'']*''([^'']*)') |
---|
| 1053 | FROM pg_attribute a |
---|
| 1054 | LEFT JOIN pg_class c ON c.oid = a.attrelid |
---|
| 1055 | LEFT JOIN pg_attrdef d ON d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef |
---|
| 1056 | LEFT JOIN pg_namespace n ON c.relnamespace = n.oid |
---|
| 1057 | WHERE (c.relname = ".$this->quote($sqn, 'text'); |
---|
| 1058 | if (!empty($field)) { |
---|
| 1059 | $query .= " OR (c.relname = ".$this->quote($table, 'text')." AND a.attname = ".$this->quote($field, 'text').")"; |
---|
| 1060 | } |
---|
| 1061 | $query .= " )" |
---|
| 1062 | .$schema_clause." |
---|
| 1063 | AND NOT a.attisdropped |
---|
| 1064 | AND a.attnum > 0 |
---|
| 1065 | AND pg_get_expr(d.adbin, d.adrelid) LIKE 'nextval%' |
---|
| 1066 | ORDER BY ".$order_by; |
---|
| 1067 | $seqname = $this->queryOne($query); |
---|
[23022] | 1068 | if (!MDB2::isError($seqname) && !empty($seqname) && is_string($seqname)) { |
---|
[18754] | 1069 | return $seqname; |
---|
| 1070 | } |
---|
| 1071 | } |
---|
| 1072 | |
---|
| 1073 | return parent::getSequenceName($sqn); |
---|
| 1074 | } |
---|
| 1075 | |
---|
| 1076 | // }}} |
---|
| 1077 | // {{{ nextID() |
---|
| 1078 | |
---|
| 1079 | /** |
---|
| 1080 | * Returns the next free id of a sequence |
---|
| 1081 | * |
---|
| 1082 | * @param string $seq_name name of the sequence |
---|
| 1083 | * @param boolean $ondemand when true the sequence is |
---|
| 1084 | * automatic created, if it |
---|
| 1085 | * not exists |
---|
| 1086 | * @return mixed MDB2 Error Object or id |
---|
| 1087 | * @access public |
---|
| 1088 | */ |
---|
| 1089 | function nextID($seq_name, $ondemand = true) |
---|
| 1090 | { |
---|
| 1091 | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true); |
---|
| 1092 | $query = "SELECT NEXTVAL('$sequence_name')"; |
---|
| 1093 | $this->pushErrorHandling(PEAR_ERROR_RETURN); |
---|
| 1094 | $this->expectError(MDB2_ERROR_NOSUCHTABLE); |
---|
| 1095 | $result = $this->queryOne($query, 'integer'); |
---|
| 1096 | $this->popExpect(); |
---|
| 1097 | $this->popErrorHandling(); |
---|
[23022] | 1098 | if (MDB2::isError($result)) { |
---|
[18754] | 1099 | if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) { |
---|
| 1100 | $this->loadModule('Manager', null, true); |
---|
| 1101 | $result = $this->manager->createSequence($seq_name); |
---|
[23022] | 1102 | if (MDB2::isError($result)) { |
---|
[18754] | 1103 | return $this->raiseError($result, null, null, |
---|
| 1104 | 'on demand sequence could not be created', __FUNCTION__); |
---|
| 1105 | } |
---|
| 1106 | return $this->nextId($seq_name, false); |
---|
| 1107 | } |
---|
| 1108 | } |
---|
| 1109 | return $result; |
---|
| 1110 | } |
---|
| 1111 | |
---|
| 1112 | // }}} |
---|
| 1113 | // {{{ lastInsertID() |
---|
| 1114 | |
---|
| 1115 | /** |
---|
| 1116 | * Returns the autoincrement ID if supported or $id or fetches the current |
---|
| 1117 | * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field) |
---|
| 1118 | * |
---|
| 1119 | * @param string $table name of the table into which a new row was inserted |
---|
| 1120 | * @param string $field name of the field into which a new row was inserted |
---|
| 1121 | * @return mixed MDB2 Error Object or id |
---|
| 1122 | * @access public |
---|
| 1123 | */ |
---|
| 1124 | function lastInsertID($table = null, $field = null) |
---|
| 1125 | { |
---|
| 1126 | if (empty($table) && empty($field)) { |
---|
| 1127 | return $this->queryOne('SELECT lastval()', 'integer'); |
---|
| 1128 | } |
---|
| 1129 | $seq = $table.(empty($field) ? '' : '_'.$field); |
---|
| 1130 | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq), true); |
---|
| 1131 | return $this->queryOne("SELECT currval('$sequence_name')", 'integer'); |
---|
| 1132 | } |
---|
| 1133 | |
---|
| 1134 | // }}} |
---|
| 1135 | // {{{ currID() |
---|
| 1136 | |
---|
| 1137 | /** |
---|
| 1138 | * Returns the current id of a sequence |
---|
| 1139 | * |
---|
| 1140 | * @param string $seq_name name of the sequence |
---|
| 1141 | * @return mixed MDB2 Error Object or id |
---|
| 1142 | * @access public |
---|
| 1143 | */ |
---|
| 1144 | function currID($seq_name) |
---|
| 1145 | { |
---|
| 1146 | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true); |
---|
| 1147 | return $this->queryOne("SELECT last_value FROM $sequence_name", 'integer'); |
---|
| 1148 | } |
---|
| 1149 | } |
---|
| 1150 | |
---|
| 1151 | /** |
---|
| 1152 | * MDB2 PostGreSQL result driver |
---|
| 1153 | * |
---|
| 1154 | * @package MDB2 |
---|
| 1155 | * @category Database |
---|
| 1156 | * @author Paul Cooper <pgc@ucecom.com> |
---|
| 1157 | */ |
---|
| 1158 | class MDB2_Result_pgsql extends MDB2_Result_Common |
---|
| 1159 | { |
---|
| 1160 | // }}} |
---|
| 1161 | // {{{ fetchRow() |
---|
| 1162 | |
---|
| 1163 | /** |
---|
| 1164 | * Fetch a row and insert the data into an existing array. |
---|
| 1165 | * |
---|
| 1166 | * @param int $fetchmode how the array data should be indexed |
---|
| 1167 | * @param int $rownum number of the row where the data can be found |
---|
| 1168 | * @return int data array on success, a MDB2 error on failure |
---|
| 1169 | * @access public |
---|
| 1170 | */ |
---|
[23022] | 1171 | function fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null) |
---|
[18754] | 1172 | { |
---|
[23022] | 1173 | if (null !== $rownum) { |
---|
[18754] | 1174 | $seek = $this->seek($rownum); |
---|
[23022] | 1175 | if (MDB2::isError($seek)) { |
---|
[18754] | 1176 | return $seek; |
---|
| 1177 | } |
---|
| 1178 | } |
---|
| 1179 | if ($fetchmode == MDB2_FETCHMODE_DEFAULT) { |
---|
| 1180 | $fetchmode = $this->db->fetchmode; |
---|
| 1181 | } |
---|
[23022] | 1182 | if ( $fetchmode == MDB2_FETCHMODE_ASSOC |
---|
| 1183 | || $fetchmode == MDB2_FETCHMODE_OBJECT |
---|
| 1184 | ) { |
---|
[18754] | 1185 | $row = @pg_fetch_array($this->result, null, PGSQL_ASSOC); |
---|
| 1186 | if (is_array($row) |
---|
| 1187 | && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE |
---|
| 1188 | ) { |
---|
| 1189 | $row = array_change_key_case($row, $this->db->options['field_case']); |
---|
| 1190 | } |
---|
| 1191 | } else { |
---|
| 1192 | $row = @pg_fetch_row($this->result); |
---|
| 1193 | } |
---|
| 1194 | if (!$row) { |
---|
[23022] | 1195 | if (false === $this->result) { |
---|
| 1196 | $err = $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
[18754] | 1197 | 'resultset has already been freed', __FUNCTION__); |
---|
| 1198 | return $err; |
---|
| 1199 | } |
---|
[23022] | 1200 | return null; |
---|
[18754] | 1201 | } |
---|
| 1202 | $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL; |
---|
| 1203 | $rtrim = false; |
---|
| 1204 | if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) { |
---|
| 1205 | if (empty($this->types)) { |
---|
| 1206 | $mode += MDB2_PORTABILITY_RTRIM; |
---|
| 1207 | } else { |
---|
| 1208 | $rtrim = true; |
---|
| 1209 | } |
---|
| 1210 | } |
---|
| 1211 | if ($mode) { |
---|
| 1212 | $this->db->_fixResultArrayValues($row, $mode); |
---|
| 1213 | } |
---|
[23022] | 1214 | if ( ( $fetchmode != MDB2_FETCHMODE_ASSOC |
---|
| 1215 | && $fetchmode != MDB2_FETCHMODE_OBJECT) |
---|
| 1216 | && !empty($this->types) |
---|
| 1217 | ) { |
---|
[18754] | 1218 | $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim); |
---|
[23022] | 1219 | } elseif (($fetchmode == MDB2_FETCHMODE_ASSOC |
---|
| 1220 | || $fetchmode == MDB2_FETCHMODE_OBJECT) |
---|
| 1221 | && !empty($this->types_assoc) |
---|
| 1222 | ) { |
---|
| 1223 | $row = $this->db->datatype->convertResultRow($this->types_assoc, $row, $rtrim); |
---|
[18754] | 1224 | } |
---|
| 1225 | if (!empty($this->values)) { |
---|
| 1226 | $this->_assignBindColumns($row); |
---|
| 1227 | } |
---|
| 1228 | if ($fetchmode === MDB2_FETCHMODE_OBJECT) { |
---|
| 1229 | $object_class = $this->db->options['fetch_class']; |
---|
| 1230 | if ($object_class == 'stdClass') { |
---|
| 1231 | $row = (object) $row; |
---|
| 1232 | } else { |
---|
[23022] | 1233 | $rowObj = new $object_class($row); |
---|
| 1234 | $row = $rowObj; |
---|
[18754] | 1235 | } |
---|
| 1236 | } |
---|
| 1237 | ++$this->rownum; |
---|
| 1238 | return $row; |
---|
| 1239 | } |
---|
| 1240 | |
---|
| 1241 | // }}} |
---|
| 1242 | // {{{ _getColumnNames() |
---|
| 1243 | |
---|
| 1244 | /** |
---|
| 1245 | * Retrieve the names of columns returned by the DBMS in a query result. |
---|
| 1246 | * |
---|
| 1247 | * @return mixed Array variable that holds the names of columns as keys |
---|
| 1248 | * or an MDB2 error on failure. |
---|
| 1249 | * Some DBMS may not return any columns when the result set |
---|
| 1250 | * does not contain any rows. |
---|
| 1251 | * @access private |
---|
| 1252 | */ |
---|
| 1253 | function _getColumnNames() |
---|
| 1254 | { |
---|
| 1255 | $columns = array(); |
---|
| 1256 | $numcols = $this->numCols(); |
---|
[23022] | 1257 | if (MDB2::isError($numcols)) { |
---|
[18754] | 1258 | return $numcols; |
---|
| 1259 | } |
---|
| 1260 | for ($column = 0; $column < $numcols; $column++) { |
---|
| 1261 | $column_name = @pg_field_name($this->result, $column); |
---|
| 1262 | $columns[$column_name] = $column; |
---|
| 1263 | } |
---|
| 1264 | if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { |
---|
| 1265 | $columns = array_change_key_case($columns, $this->db->options['field_case']); |
---|
| 1266 | } |
---|
| 1267 | return $columns; |
---|
| 1268 | } |
---|
| 1269 | |
---|
| 1270 | // }}} |
---|
| 1271 | // {{{ numCols() |
---|
| 1272 | |
---|
| 1273 | /** |
---|
| 1274 | * Count the number of columns returned by the DBMS in a query result. |
---|
| 1275 | * |
---|
| 1276 | * @access public |
---|
| 1277 | * @return mixed integer value with the number of columns, a MDB2 error |
---|
| 1278 | * on failure |
---|
| 1279 | */ |
---|
| 1280 | function numCols() |
---|
| 1281 | { |
---|
| 1282 | $cols = @pg_num_fields($this->result); |
---|
[23022] | 1283 | if (null === $cols) { |
---|
| 1284 | if (false === $this->result) { |
---|
[18754] | 1285 | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
| 1286 | 'resultset has already been freed', __FUNCTION__); |
---|
[23022] | 1287 | } |
---|
| 1288 | if (null === $this->result) { |
---|
[18754] | 1289 | return count($this->types); |
---|
| 1290 | } |
---|
| 1291 | return $this->db->raiseError(null, null, null, |
---|
| 1292 | 'Could not get column count', __FUNCTION__); |
---|
| 1293 | } |
---|
| 1294 | return $cols; |
---|
| 1295 | } |
---|
| 1296 | |
---|
| 1297 | // }}} |
---|
| 1298 | // {{{ nextResult() |
---|
| 1299 | |
---|
| 1300 | /** |
---|
| 1301 | * Move the internal result pointer to the next available result |
---|
| 1302 | * |
---|
| 1303 | * @return true on success, false if there is no more result set or an error object on failure |
---|
| 1304 | * @access public |
---|
| 1305 | */ |
---|
| 1306 | function nextResult() |
---|
| 1307 | { |
---|
| 1308 | $connection = $this->db->getConnection(); |
---|
[23022] | 1309 | if (MDB2::isError($connection)) { |
---|
[18754] | 1310 | return $connection; |
---|
| 1311 | } |
---|
| 1312 | |
---|
| 1313 | if (!($this->result = @pg_get_result($connection))) { |
---|
| 1314 | return false; |
---|
| 1315 | } |
---|
| 1316 | return MDB2_OK; |
---|
| 1317 | } |
---|
| 1318 | |
---|
| 1319 | // }}} |
---|
| 1320 | // {{{ free() |
---|
| 1321 | |
---|
| 1322 | /** |
---|
| 1323 | * Free the internal resources associated with result. |
---|
| 1324 | * |
---|
| 1325 | * @return boolean true on success, false if result is invalid |
---|
| 1326 | * @access public |
---|
| 1327 | */ |
---|
| 1328 | function free() |
---|
| 1329 | { |
---|
| 1330 | if (is_resource($this->result) && $this->db->connection) { |
---|
| 1331 | $free = @pg_free_result($this->result); |
---|
[23022] | 1332 | if (false === $free) { |
---|
[18754] | 1333 | return $this->db->raiseError(null, null, null, |
---|
| 1334 | 'Could not free result', __FUNCTION__); |
---|
| 1335 | } |
---|
| 1336 | } |
---|
| 1337 | $this->result = false; |
---|
| 1338 | return MDB2_OK; |
---|
| 1339 | } |
---|
| 1340 | } |
---|
| 1341 | |
---|
| 1342 | /** |
---|
| 1343 | * MDB2 PostGreSQL buffered result driver |
---|
| 1344 | * |
---|
| 1345 | * @package MDB2 |
---|
| 1346 | * @category Database |
---|
| 1347 | * @author Paul Cooper <pgc@ucecom.com> |
---|
| 1348 | */ |
---|
| 1349 | class MDB2_BufferedResult_pgsql extends MDB2_Result_pgsql |
---|
| 1350 | { |
---|
| 1351 | // {{{ seek() |
---|
| 1352 | |
---|
| 1353 | /** |
---|
| 1354 | * Seek to a specific row in a result set |
---|
| 1355 | * |
---|
| 1356 | * @param int $rownum number of the row where the data can be found |
---|
| 1357 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
| 1358 | * @access public |
---|
| 1359 | */ |
---|
| 1360 | function seek($rownum = 0) |
---|
| 1361 | { |
---|
| 1362 | if ($this->rownum != ($rownum - 1) && !@pg_result_seek($this->result, $rownum)) { |
---|
[23022] | 1363 | if (false === $this->result) { |
---|
[18754] | 1364 | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
| 1365 | 'resultset has already been freed', __FUNCTION__); |
---|
[23022] | 1366 | } |
---|
| 1367 | if (null === $this->result) { |
---|
[18754] | 1368 | return MDB2_OK; |
---|
| 1369 | } |
---|
| 1370 | return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, |
---|
| 1371 | 'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__); |
---|
| 1372 | } |
---|
| 1373 | $this->rownum = $rownum - 1; |
---|
| 1374 | return MDB2_OK; |
---|
| 1375 | } |
---|
| 1376 | |
---|
| 1377 | // }}} |
---|
| 1378 | // {{{ valid() |
---|
| 1379 | |
---|
| 1380 | /** |
---|
| 1381 | * Check if the end of the result set has been reached |
---|
| 1382 | * |
---|
| 1383 | * @return mixed true or false on sucess, a MDB2 error on failure |
---|
| 1384 | * @access public |
---|
| 1385 | */ |
---|
| 1386 | function valid() |
---|
| 1387 | { |
---|
| 1388 | $numrows = $this->numRows(); |
---|
[23022] | 1389 | if (MDB2::isError($numrows)) { |
---|
[18754] | 1390 | return $numrows; |
---|
| 1391 | } |
---|
| 1392 | return $this->rownum < ($numrows - 1); |
---|
| 1393 | } |
---|
| 1394 | |
---|
| 1395 | // }}} |
---|
| 1396 | // {{{ numRows() |
---|
| 1397 | |
---|
| 1398 | /** |
---|
| 1399 | * Returns the number of rows in a result object |
---|
| 1400 | * |
---|
| 1401 | * @return mixed MDB2 Error Object or the number of rows |
---|
| 1402 | * @access public |
---|
| 1403 | */ |
---|
| 1404 | function numRows() |
---|
| 1405 | { |
---|
| 1406 | $rows = @pg_num_rows($this->result); |
---|
[23022] | 1407 | if (null === $rows) { |
---|
| 1408 | if (false === $this->result) { |
---|
[18754] | 1409 | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
| 1410 | 'resultset has already been freed', __FUNCTION__); |
---|
[23022] | 1411 | } |
---|
| 1412 | if (null === $this->result) { |
---|
[18754] | 1413 | return 0; |
---|
| 1414 | } |
---|
| 1415 | return $this->db->raiseError(null, null, null, |
---|
| 1416 | 'Could not get row count', __FUNCTION__); |
---|
| 1417 | } |
---|
| 1418 | return $rows; |
---|
| 1419 | } |
---|
| 1420 | } |
---|
| 1421 | |
---|
| 1422 | /** |
---|
| 1423 | * MDB2 PostGreSQL statement driver |
---|
| 1424 | * |
---|
| 1425 | * @package MDB2 |
---|
| 1426 | * @category Database |
---|
| 1427 | * @author Paul Cooper <pgc@ucecom.com> |
---|
| 1428 | */ |
---|
| 1429 | class MDB2_Statement_pgsql extends MDB2_Statement_Common |
---|
| 1430 | { |
---|
| 1431 | // {{{ _execute() |
---|
| 1432 | |
---|
| 1433 | /** |
---|
| 1434 | * Execute a prepared query statement helper method. |
---|
| 1435 | * |
---|
| 1436 | * @param mixed $result_class string which specifies which result class to use |
---|
| 1437 | * @param mixed $result_wrap_class string which specifies which class to wrap results in |
---|
| 1438 | * |
---|
| 1439 | * @return mixed MDB2_Result or integer (affected rows) on success, |
---|
| 1440 | * a MDB2 error on failure |
---|
| 1441 | * @access private |
---|
| 1442 | */ |
---|
[23022] | 1443 | function _execute($result_class = true, $result_wrap_class = true) |
---|
[18754] | 1444 | { |
---|
[23022] | 1445 | if (null === $this->statement) { |
---|
| 1446 | return parent::_execute($result_class, $result_wrap_class); |
---|
[18754] | 1447 | } |
---|
| 1448 | $this->db->last_query = $this->query; |
---|
| 1449 | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values)); |
---|
| 1450 | if ($this->db->getOption('disable_query')) { |
---|
| 1451 | $result = $this->is_manip ? 0 : null; |
---|
| 1452 | return $result; |
---|
| 1453 | } |
---|
| 1454 | |
---|
| 1455 | $connection = $this->db->getConnection(); |
---|
[23022] | 1456 | if (MDB2::isError($connection)) { |
---|
[18754] | 1457 | return $connection; |
---|
| 1458 | } |
---|
| 1459 | |
---|
| 1460 | $query = false; |
---|
| 1461 | $parameters = array(); |
---|
| 1462 | // todo: disabled until pg_execute() bytea issues are cleared up |
---|
| 1463 | if (true || !function_exists('pg_execute')) { |
---|
| 1464 | $query = 'EXECUTE '.$this->statement; |
---|
| 1465 | } |
---|
| 1466 | if (!empty($this->positions)) { |
---|
| 1467 | foreach ($this->positions as $parameter) { |
---|
| 1468 | if (!array_key_exists($parameter, $this->values)) { |
---|
| 1469 | return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null, |
---|
| 1470 | 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__); |
---|
| 1471 | } |
---|
| 1472 | $value = $this->values[$parameter]; |
---|
| 1473 | $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null; |
---|
| 1474 | if (is_resource($value) || $type == 'clob' || $type == 'blob' || $this->db->options['lob_allow_url_include']) { |
---|
| 1475 | if (!is_resource($value) && preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) { |
---|
| 1476 | if ($match[1] == 'file://') { |
---|
| 1477 | $value = $match[2]; |
---|
| 1478 | } |
---|
| 1479 | $value = @fopen($value, 'r'); |
---|
| 1480 | $close = true; |
---|
| 1481 | } |
---|
| 1482 | if (is_resource($value)) { |
---|
| 1483 | $data = ''; |
---|
| 1484 | while (!@feof($value)) { |
---|
| 1485 | $data.= @fread($value, $this->db->options['lob_buffer_length']); |
---|
| 1486 | } |
---|
| 1487 | if ($close) { |
---|
| 1488 | @fclose($value); |
---|
| 1489 | } |
---|
| 1490 | $value = $data; |
---|
| 1491 | } |
---|
| 1492 | } |
---|
| 1493 | $quoted = $this->db->quote($value, $type, $query); |
---|
[23022] | 1494 | if (MDB2::isError($quoted)) { |
---|
[18754] | 1495 | return $quoted; |
---|
| 1496 | } |
---|
| 1497 | $parameters[] = $quoted; |
---|
| 1498 | } |
---|
| 1499 | if ($query) { |
---|
| 1500 | $query.= ' ('.implode(', ', $parameters).')'; |
---|
| 1501 | } |
---|
| 1502 | } |
---|
| 1503 | |
---|
| 1504 | if (!$query) { |
---|
| 1505 | $result = @pg_execute($connection, $this->statement, $parameters); |
---|
| 1506 | if (!$result) { |
---|
[23022] | 1507 | $err = $this->db->raiseError(null, null, null, |
---|
[18754] | 1508 | 'Unable to execute statement', __FUNCTION__); |
---|
| 1509 | return $err; |
---|
| 1510 | } |
---|
| 1511 | } else { |
---|
| 1512 | $result = $this->db->_doQuery($query, $this->is_manip, $connection); |
---|
[23022] | 1513 | if (MDB2::isError($result)) { |
---|
[18754] | 1514 | return $result; |
---|
| 1515 | } |
---|
| 1516 | } |
---|
| 1517 | |
---|
| 1518 | if ($this->is_manip) { |
---|
| 1519 | $affected_rows = $this->db->_affectedRows($connection, $result); |
---|
| 1520 | return $affected_rows; |
---|
| 1521 | } |
---|
| 1522 | |
---|
[23022] | 1523 | $result = $this->db->_wrapResult($result, $this->result_types, |
---|
[18754] | 1524 | $result_class, $result_wrap_class, $this->limit, $this->offset); |
---|
| 1525 | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result)); |
---|
| 1526 | return $result; |
---|
| 1527 | } |
---|
| 1528 | |
---|
| 1529 | // }}} |
---|
| 1530 | // {{{ free() |
---|
| 1531 | |
---|
| 1532 | /** |
---|
| 1533 | * Release resources allocated for the specified prepared query. |
---|
| 1534 | * |
---|
| 1535 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
| 1536 | * @access public |
---|
| 1537 | */ |
---|
| 1538 | function free() |
---|
| 1539 | { |
---|
[23022] | 1540 | if (null === $this->positions) { |
---|
[18754] | 1541 | return $this->db->raiseError(MDB2_ERROR, null, null, |
---|
| 1542 | 'Prepared statement has already been freed', __FUNCTION__); |
---|
| 1543 | } |
---|
| 1544 | $result = MDB2_OK; |
---|
| 1545 | |
---|
[23022] | 1546 | if (null !== $this->statement) { |
---|
[18754] | 1547 | $connection = $this->db->getConnection(); |
---|
[23022] | 1548 | if (MDB2::isError($connection)) { |
---|
[18754] | 1549 | return $connection; |
---|
| 1550 | } |
---|
| 1551 | $query = 'DEALLOCATE PREPARE '.$this->statement; |
---|
| 1552 | $result = $this->db->_doQuery($query, true, $connection); |
---|
| 1553 | } |
---|
| 1554 | |
---|
| 1555 | parent::free(); |
---|
| 1556 | return $result; |
---|
| 1557 | } |
---|
[23022] | 1558 | |
---|
| 1559 | /** |
---|
| 1560 | * drop an existing table |
---|
| 1561 | * |
---|
| 1562 | * @param string $name name of the table that should be dropped |
---|
| 1563 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
| 1564 | * @access public |
---|
| 1565 | */ |
---|
| 1566 | function dropTable($name) |
---|
| 1567 | { |
---|
| 1568 | $db = $this->getDBInstance(); |
---|
| 1569 | if (MDB2::isError($db)) { |
---|
| 1570 | return $db; |
---|
| 1571 | } |
---|
| 1572 | |
---|
| 1573 | $name = $db->quoteIdentifier($name, true); |
---|
| 1574 | $result = $db->exec("DROP TABLE $name"); |
---|
| 1575 | |
---|
| 1576 | if (MDB2::isError($result)) { |
---|
| 1577 | $result = $db->exec("DROP TABLE $name CASCADE"); |
---|
| 1578 | } |
---|
| 1579 | |
---|
| 1580 | return $result; |
---|
| 1581 | } |
---|
[18754] | 1582 | } |
---|
[19675] | 1583 | ?> |
---|