| 1 | <?php |
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| 2 | // +----------------------------------------------------------------------+ |
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| 3 | // | PHP versions 4 and 5 | |
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| 4 | // +----------------------------------------------------------------------+ |
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| 5 | // | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox, | |
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| 6 | // | Stig. S. Bakken, Lukas Smith | |
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| 7 | // | All rights reserved. | |
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| 8 | // +----------------------------------------------------------------------+ |
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| 9 | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | |
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| 10 | // | API as well as database abstraction for PHP applications. | |
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| 11 | // | This LICENSE is in the BSD license style. | |
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| 12 | // | | |
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| 13 | // | Redistribution and use in source and binary forms, with or without | |
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| 14 | // | modification, are permitted provided that the following conditions | |
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| 15 | // | are met: | |
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| 16 | // | | |
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| 17 | // | Redistributions of source code must retain the above copyright | |
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| 18 | // | notice, this list of conditions and the following disclaimer. | |
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| 19 | // | | |
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| 20 | // | Redistributions in binary form must reproduce the above copyright | |
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| 21 | // | notice, this list of conditions and the following disclaimer in the | |
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| 22 | // | documentation and/or other materials provided with the distribution. | |
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| 23 | // | | |
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| 24 | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | |
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| 25 | // | Lukas Smith nor the names of his contributors may be used to endorse | |
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| 26 | // | or promote products derived from this software without specific prior| |
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| 27 | // | written permission. | |
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| 28 | // | | |
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| 29 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
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| 30 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
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| 31 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
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| 32 | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
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| 33 | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
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| 34 | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
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| 35 | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| |
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| 36 | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
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| 37 | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
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| 38 | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| |
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| 39 | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
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| 40 | // | POSSIBILITY OF SUCH DAMAGE. | |
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| 41 | // +----------------------------------------------------------------------+ |
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| 42 | // | Author: Lukas Smith <[email protected]> | |
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| 43 | // +----------------------------------------------------------------------+ |
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| 44 | // |
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| 45 | // $Id: Extended.php,v 1.60 2007/11/28 19:49:34 quipo Exp $ |
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| 46 | |
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| 47 | /** |
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| 48 | * @package MDB2 |
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| 49 | * @category Database |
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| 50 | * @author Lukas Smith <[email protected]> |
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| 51 | */ |
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| 52 | |
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| 53 | /** |
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| 54 | * Used by autoPrepare() |
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| 55 | */ |
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| 56 | define('MDB2_AUTOQUERY_INSERT', 1); |
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| 57 | define('MDB2_AUTOQUERY_UPDATE', 2); |
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| 58 | define('MDB2_AUTOQUERY_DELETE', 3); |
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| 59 | define('MDB2_AUTOQUERY_SELECT', 4); |
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| 60 | |
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| 61 | /** |
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| 62 | * MDB2_Extended: class which adds several high level methods to MDB2 |
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| 63 | * |
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| 64 | * @package MDB2 |
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| 65 | * @category Database |
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| 66 | * @author Lukas Smith <[email protected]> |
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| 67 | */ |
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| 68 | class MDB2_Extended extends MDB2_Module_Common |
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| 69 | { |
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| 70 | // {{{ autoPrepare() |
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| 71 | |
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| 72 | /** |
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| 73 | * Generate an insert, update or delete query and call prepare() on it |
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| 74 | * |
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| 75 | * @param string table |
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| 76 | * @param array the fields names |
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| 77 | * @param int type of query to build |
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| 78 | * MDB2_AUTOQUERY_INSERT |
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| 79 | * MDB2_AUTOQUERY_UPDATE |
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| 80 | * MDB2_AUTOQUERY_DELETE |
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| 81 | * MDB2_AUTOQUERY_SELECT |
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| 82 | * @param string (in case of update and delete queries, this string will be put after the sql WHERE statement) |
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| 83 | * @param array that contains the types of the placeholders |
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| 84 | * @param mixed array that contains the types of the columns in |
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| 85 | * the result set or MDB2_PREPARE_RESULT, if set to |
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| 86 | * MDB2_PREPARE_MANIP the query is handled as a manipulation query |
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| 87 | * |
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| 88 | * @return resource handle for the query |
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| 89 | * @see buildManipSQL |
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| 90 | * @access public |
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| 91 | */ |
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| 92 | function autoPrepare($table, $table_fields, $mode = MDB2_AUTOQUERY_INSERT, |
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| 93 | $where = false, $types = null, $result_types = MDB2_PREPARE_MANIP) |
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| 94 | { |
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| 95 | $query = $this->buildManipSQL($table, $table_fields, $mode, $where); |
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| 96 | if (PEAR::isError($query)) { |
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| 97 | return $query; |
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| 98 | } |
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| 99 | $db =& $this->getDBInstance(); |
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| 100 | if (PEAR::isError($db)) { |
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| 101 | return $db; |
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| 102 | } |
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| 103 | $lobs = array(); |
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| 104 | foreach ((array)$types as $param => $type) { |
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| 105 | if (($type == 'clob') || ($type == 'blob')) { |
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| 106 | $lobs[$param] = $table_fields[$param]; |
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| 107 | } |
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| 108 | } |
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| 109 | return $db->prepare($query, $types, $result_types, $lobs); |
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| 110 | } |
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| 111 | |
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| 112 | // }}} |
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| 113 | // {{{ autoExecute() |
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| 114 | |
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| 115 | /** |
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| 116 | * Generate an insert, update or delete query and call prepare() and execute() on it |
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| 117 | * |
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| 118 | * @param string name of the table |
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| 119 | * @param array assoc ($key=>$value) where $key is a field name and $value its value |
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| 120 | * @param int type of query to build |
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| 121 | * MDB2_AUTOQUERY_INSERT |
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| 122 | * MDB2_AUTOQUERY_UPDATE |
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| 123 | * MDB2_AUTOQUERY_DELETE |
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| 124 | * MDB2_AUTOQUERY_SELECT |
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| 125 | * @param string (in case of update and delete queries, this string will be put after the sql WHERE statement) |
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| 126 | * @param array that contains the types of the placeholders |
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| 127 | * @param string which specifies which result class to use |
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| 128 | * @param mixed array that contains the types of the columns in |
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| 129 | * the result set or MDB2_PREPARE_RESULT, if set to |
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| 130 | * MDB2_PREPARE_MANIP the query is handled as a manipulation query |
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| 131 | * |
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| 132 | * @return bool|MDB2_Error true on success, a MDB2 error on failure |
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| 133 | * @see buildManipSQL |
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| 134 | * @see autoPrepare |
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| 135 | * @access public |
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| 136 | */ |
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| 137 | function &autoExecute($table, $fields_values, $mode = MDB2_AUTOQUERY_INSERT, |
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| 138 | $where = false, $types = null, $result_class = true, $result_types = MDB2_PREPARE_MANIP) |
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| 139 | { |
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| 140 | $fields_values = (array)$fields_values; |
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| 141 | if ($mode == MDB2_AUTOQUERY_SELECT) { |
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| 142 | if (is_array($result_types)) { |
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| 143 | $keys = array_keys($result_types); |
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| 144 | } elseif (!empty($fields_values)) { |
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| 145 | $keys = $fields_values; |
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| 146 | } else { |
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| 147 | $keys = array(); |
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| 148 | } |
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| 149 | } else { |
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| 150 | $keys = array_keys($fields_values); |
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| 151 | } |
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| 152 | $params = array_values($fields_values); |
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| 153 | if (empty($params)) { |
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| 154 | $query = $this->buildManipSQL($table, $keys, $mode, $where); |
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| 155 | |
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| 156 | $db =& $this->getDBInstance(); |
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| 157 | if (PEAR::isError($db)) { |
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| 158 | return $db; |
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| 159 | } |
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| 160 | if ($mode == MDB2_AUTOQUERY_SELECT) { |
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| 161 | $result =& $db->query($query, $result_types, $result_class); |
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| 162 | } else { |
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| 163 | $result = $db->exec($query); |
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| 164 | } |
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| 165 | } else { |
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| 166 | $stmt = $this->autoPrepare($table, $keys, $mode, $where, $types, $result_types); |
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| 167 | if (PEAR::isError($stmt)) { |
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| 168 | return $stmt; |
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| 169 | } |
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| 170 | $result =& $stmt->execute($params, $result_class); |
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| 171 | $stmt->free(); |
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| 172 | } |
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| 173 | return $result; |
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| 174 | } |
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| 175 | |
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| 176 | // }}} |
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| 177 | // {{{ buildManipSQL() |
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| 178 | |
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| 179 | /** |
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| 180 | * Make automaticaly an sql query for prepare() |
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| 181 | * |
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| 182 | * Example : buildManipSQL('table_sql', array('field1', 'field2', 'field3'), MDB2_AUTOQUERY_INSERT) |
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| 183 | * will return the string : INSERT INTO table_sql (field1,field2,field3) VALUES (?,?,?) |
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| 184 | * NB : - This belongs more to a SQL Builder class, but this is a simple facility |
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| 185 | * - Be carefull ! If you don't give a $where param with an UPDATE/DELETE query, all |
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| 186 | * the records of the table will be updated/deleted ! |
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| 187 | * |
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| 188 | * @param string name of the table |
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| 189 | * @param ordered array containing the fields names |
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| 190 | * @param int type of query to build |
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| 191 | * MDB2_AUTOQUERY_INSERT |
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| 192 | * MDB2_AUTOQUERY_UPDATE |
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| 193 | * MDB2_AUTOQUERY_DELETE |
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| 194 | * MDB2_AUTOQUERY_SELECT |
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| 195 | * @param string (in case of update and delete queries, this string will be put after the sql WHERE statement) |
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| 196 | * |
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| 197 | * @return string sql query for prepare() |
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| 198 | * @access public |
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| 199 | */ |
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| 200 | function buildManipSQL($table, $table_fields, $mode, $where = false) |
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| 201 | { |
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| 202 | $db =& $this->getDBInstance(); |
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| 203 | if (PEAR::isError($db)) { |
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| 204 | return $db; |
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| 205 | } |
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| 206 | |
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| 207 | if ($db->options['quote_identifier']) { |
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| 208 | $table = $db->quoteIdentifier($table); |
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| 209 | } |
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| 210 | |
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| 211 | if (!empty($table_fields) && $db->options['quote_identifier']) { |
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| 212 | foreach ($table_fields as $key => $field) { |
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| 213 | $table_fields[$key] = $db->quoteIdentifier($field); |
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| 214 | } |
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| 215 | } |
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| 216 | |
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| 217 | if ($where !== false && !is_null($where)) { |
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| 218 | if (is_array($where)) { |
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| 219 | $where = implode(' AND ', $where); |
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| 220 | } |
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| 221 | $where = ' WHERE '.$where; |
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| 222 | } |
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| 223 | |
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| 224 | switch ($mode) { |
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| 225 | case MDB2_AUTOQUERY_INSERT: |
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| 226 | if (empty($table_fields)) { |
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| 227 | return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
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| 228 | 'Insert requires table fields', __FUNCTION__); |
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| 229 | } |
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| 230 | $cols = implode(', ', $table_fields); |
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| 231 | $values = '?'.str_repeat(', ?', (count($table_fields) - 1)); |
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| 232 | return 'INSERT INTO '.$table.' ('.$cols.') VALUES ('.$values.')'; |
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| 233 | break; |
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| 234 | case MDB2_AUTOQUERY_UPDATE: |
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| 235 | if (empty($table_fields)) { |
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| 236 | return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
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| 237 | 'Update requires table fields', __FUNCTION__); |
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| 238 | } |
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| 239 | $set = implode(' = ?, ', $table_fields).' = ?'; |
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| 240 | $sql = 'UPDATE '.$table.' SET '.$set.$where; |
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| 241 | return $sql; |
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| 242 | break; |
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| 243 | case MDB2_AUTOQUERY_DELETE: |
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| 244 | $sql = 'DELETE FROM '.$table.$where; |
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| 245 | return $sql; |
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| 246 | break; |
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| 247 | case MDB2_AUTOQUERY_SELECT: |
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| 248 | $cols = !empty($table_fields) ? implode(', ', $table_fields) : '*'; |
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| 249 | $sql = 'SELECT '.$cols.' FROM '.$table.$where; |
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| 250 | return $sql; |
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| 251 | break; |
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| 252 | } |
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| 253 | return $db->raiseError(MDB2_ERROR_SYNTAX, null, null, |
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| 254 | 'Non existant mode', __FUNCTION__); |
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| 255 | } |
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| 256 | |
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| 257 | // }}} |
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| 258 | // {{{ limitQuery() |
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| 259 | |
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| 260 | /** |
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| 261 | * Generates a limited query |
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| 262 | * |
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| 263 | * @param string query |
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| 264 | * @param array that contains the types of the columns in the result set |
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| 265 | * @param integer the numbers of rows to fetch |
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| 266 | * @param integer the row to start to fetching |
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| 267 | * @param string which specifies which result class to use |
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| 268 | * @param mixed string which specifies which class to wrap results in |
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| 269 | * |
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| 270 | * @return MDB2_Result|MDB2_Error result set on success, a MDB2 error on failure |
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| 271 | * @access public |
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| 272 | */ |
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| 273 | function &limitQuery($query, $types, $limit, $offset = 0, $result_class = true, |
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| 274 | $result_wrap_class = false) |
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| 275 | { |
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| 276 | $db =& $this->getDBInstance(); |
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| 277 | if (PEAR::isError($db)) { |
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| 278 | return $db; |
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| 279 | } |
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| 280 | |
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| 281 | $result = $db->setLimit($limit, $offset); |
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| 282 | if (PEAR::isError($result)) { |
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| 283 | return $result; |
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| 284 | } |
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| 285 | $result =& $db->query($query, $types, $result_class, $result_wrap_class); |
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| 286 | return $result; |
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| 287 | } |
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| 288 | |
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| 289 | // }}} |
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| 290 | // {{{ execParam() |
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| 291 | |
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| 292 | /** |
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| 293 | * Execute a parameterized DML statement. |
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| 294 | * |
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| 295 | * @param string the SQL query |
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| 296 | * @param array if supplied, prepare/execute will be used |
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| 297 | * with this array as execute parameters |
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| 298 | * @param array that contains the types of the values defined in $params |
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| 299 | * |
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| 300 | * @return int|MDB2_Error affected rows on success, a MDB2 error on failure |
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| 301 | * @access public |
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| 302 | */ |
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| 303 | function execParam($query, $params = array(), $param_types = null) |
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| 304 | { |
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| 305 | $db =& $this->getDBInstance(); |
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| 306 | if (PEAR::isError($db)) { |
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| 307 | return $db; |
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| 308 | } |
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| 309 | |
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| 310 | settype($params, 'array'); |
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| 311 | if (empty($params)) { |
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| 312 | return $db->exec($query); |
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| 313 | } |
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| 314 | |
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| 315 | $stmt = $db->prepare($query, $param_types, MDB2_PREPARE_MANIP); |
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| 316 | if (PEAR::isError($stmt)) { |
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| 317 | return $stmt; |
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| 318 | } |
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| 319 | |
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| 320 | $result = $stmt->execute($params); |
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| 321 | if (PEAR::isError($result)) { |
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| 322 | return $result; |
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| 323 | } |
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| 324 | |
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| 325 | $stmt->free(); |
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| 326 | return $result; |
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| 327 | } |
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| 328 | |
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| 329 | // }}} |
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| 330 | // {{{ getOne() |
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| 331 | |
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| 332 | /** |
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| 333 | * Fetch the first column of the first row of data returned from a query. |
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| 334 | * Takes care of doing the query and freeing the results when finished. |
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| 335 | * |
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| 336 | * @param string the SQL query |
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| 337 | * @param string that contains the type of the column in the result set |
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| 338 | * @param array if supplied, prepare/execute will be used |
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| 339 | * with this array as execute parameters |
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| 340 | * @param array that contains the types of the values defined in $params |
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| 341 | * @param int|string which column to return |
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| 342 | * |
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| 343 | * @return scalar|MDB2_Error data on success, a MDB2 error on failure |
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| 344 | * @access public |
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| 345 | */ |
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| 346 | function getOne($query, $type = null, $params = array(), |
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| 347 | $param_types = null, $colnum = 0) |
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| 348 | { |
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| 349 | $db =& $this->getDBInstance(); |
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| 350 | if (PEAR::isError($db)) { |
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| 351 | return $db; |
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| 352 | } |
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| 353 | |
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| 354 | settype($params, 'array'); |
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| 355 | settype($type, 'array'); |
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| 356 | if (empty($params)) { |
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| 357 | return $db->queryOne($query, $type, $colnum); |
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| 358 | } |
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| 359 | |
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| 360 | $stmt = $db->prepare($query, $param_types, $type); |
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| 361 | if (PEAR::isError($stmt)) { |
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| 362 | return $stmt; |
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| 363 | } |
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| 364 | |
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| 365 | $result = $stmt->execute($params); |
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| 366 | if (!MDB2::isResultCommon($result)) { |
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| 367 | return $result; |
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| 368 | } |
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| 369 | |
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| 370 | $one = $result->fetchOne($colnum); |
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| 371 | $stmt->free(); |
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| 372 | $result->free(); |
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| 373 | return $one; |
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| 374 | } |
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| 375 | |
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| 376 | // }}} |
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| 377 | // {{{ getRow() |
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| 378 | |
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| 379 | /** |
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| 380 | * Fetch the first row of data returned from a query. Takes care |
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| 381 | * of doing the query and freeing the results when finished. |
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| 382 | * |
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| 383 | * @param string the SQL query |
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| 384 | * @param array that contains the types of the columns in the result set |
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| 385 | * @param array if supplied, prepare/execute will be used |
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| 386 | * with this array as execute parameters |
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| 387 | * @param array that contains the types of the values defined in $params |
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| 388 | * @param int the fetch mode to use |
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| 389 | * |
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| 390 | * @return array|MDB2_Error data on success, a MDB2 error on failure |
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| 391 | * @access public |
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| 392 | */ |
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| 393 | function getRow($query, $types = null, $params = array(), |
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| 394 | $param_types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT) |
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| 395 | { |
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| 396 | $db =& $this->getDBInstance(); |
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| 397 | if (PEAR::isError($db)) { |
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| 398 | return $db; |
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| 399 | } |
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| 400 | |
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| 401 | settype($params, 'array'); |
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| 402 | if (empty($params)) { |
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| 403 | return $db->queryRow($query, $types, $fetchmode); |
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| 404 | } |
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| 405 | |
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| 406 | $stmt = $db->prepare($query, $param_types, $types); |
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| 407 | if (PEAR::isError($stmt)) { |
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| 408 | return $stmt; |
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| 409 | } |
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| 410 | |
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| 411 | $result = $stmt->execute($params); |
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| 412 | if (!MDB2::isResultCommon($result)) { |
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| 413 | return $result; |
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| 414 | } |
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| 415 | |
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| 416 | $row = $result->fetchRow($fetchmode); |
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| 417 | $stmt->free(); |
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| 418 | $result->free(); |
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| 419 | return $row; |
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| 420 | } |
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| 421 | |
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| 422 | // }}} |
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| 423 | // {{{ getCol() |
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| 424 | |
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| 425 | /** |
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| 426 | * Fetch a single column from a result set and return it as an |
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| 427 | * indexed array. |
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| 428 | * |
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| 429 | * @param string the SQL query |
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| 430 | * @param string that contains the type of the column in the result set |
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| 431 | * @param array if supplied, prepare/execute will be used |
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| 432 | * with this array as execute parameters |
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| 433 | * @param array that contains the types of the values defined in $params |
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| 434 | * @param int|string which column to return |
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| 435 | * |
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| 436 | * @return array|MDB2_Error data on success, a MDB2 error on failure |
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| 437 | * @access public |
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| 438 | */ |
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| 439 | function getCol($query, $type = null, $params = array(), |
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| 440 | $param_types = null, $colnum = 0) |
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| 441 | { |
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| 442 | $db =& $this->getDBInstance(); |
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| 443 | if (PEAR::isError($db)) { |
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| 444 | return $db; |
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| 445 | } |
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| 446 | |
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| 447 | settype($params, 'array'); |
|---|
| 448 | settype($type, 'array'); |
|---|
| 449 | if (empty($params)) { |
|---|
| 450 | return $db->queryCol($query, $type, $colnum); |
|---|
| 451 | } |
|---|
| 452 | |
|---|
| 453 | $stmt = $db->prepare($query, $param_types, $type); |
|---|
| 454 | if (PEAR::isError($stmt)) { |
|---|
| 455 | return $stmt; |
|---|
| 456 | } |
|---|
| 457 | |
|---|
| 458 | $result = $stmt->execute($params); |
|---|
| 459 | if (!MDB2::isResultCommon($result)) { |
|---|
| 460 | return $result; |
|---|
| 461 | } |
|---|
| 462 | |
|---|
| 463 | $col = $result->fetchCol($colnum); |
|---|
| 464 | $stmt->free(); |
|---|
| 465 | $result->free(); |
|---|
| 466 | return $col; |
|---|
| 467 | } |
|---|
| 468 | |
|---|
| 469 | // }}} |
|---|
| 470 | // {{{ getAll() |
|---|
| 471 | |
|---|
| 472 | /** |
|---|
| 473 | * Fetch all the rows returned from a query. |
|---|
| 474 | * |
|---|
| 475 | * @param string the SQL query |
|---|
| 476 | * @param array that contains the types of the columns in the result set |
|---|
| 477 | * @param array if supplied, prepare/execute will be used |
|---|
| 478 | * with this array as execute parameters |
|---|
| 479 | * @param array that contains the types of the values defined in $params |
|---|
| 480 | * @param int the fetch mode to use |
|---|
| 481 | * @param bool if set to true, the $all will have the first |
|---|
| 482 | * column as its first dimension |
|---|
| 483 | * @param bool $force_array used only when the query returns exactly |
|---|
| 484 | * two columns. If true, the values of the returned array will be |
|---|
| 485 | * one-element arrays instead of scalars. |
|---|
| 486 | * @param bool $group if true, the values of the returned array is |
|---|
| 487 | * wrapped in another array. If the same key value (in the first |
|---|
| 488 | * column) repeats itself, the values will be appended to this array |
|---|
| 489 | * instead of overwriting the existing values. |
|---|
| 490 | * |
|---|
| 491 | * @return array|MDB2_Error data on success, a MDB2 error on failure |
|---|
| 492 | * @access public |
|---|
| 493 | */ |
|---|
| 494 | function getAll($query, $types = null, $params = array(), |
|---|
| 495 | $param_types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT, |
|---|
| 496 | $rekey = false, $force_array = false, $group = false) |
|---|
| 497 | { |
|---|
| 498 | $db =& $this->getDBInstance(); |
|---|
| 499 | if (PEAR::isError($db)) { |
|---|
| 500 | return $db; |
|---|
| 501 | } |
|---|
| 502 | |
|---|
| 503 | settype($params, 'array'); |
|---|
| 504 | if (empty($params)) { |
|---|
| 505 | return $db->queryAll($query, $types, $fetchmode, $rekey, $force_array, $group); |
|---|
| 506 | } |
|---|
| 507 | |
|---|
| 508 | $stmt = $db->prepare($query, $param_types, $types); |
|---|
| 509 | if (PEAR::isError($stmt)) { |
|---|
| 510 | return $stmt; |
|---|
| 511 | } |
|---|
| 512 | |
|---|
| 513 | $result = $stmt->execute($params); |
|---|
| 514 | if (!MDB2::isResultCommon($result)) { |
|---|
| 515 | return $result; |
|---|
| 516 | } |
|---|
| 517 | |
|---|
| 518 | $all = $result->fetchAll($fetchmode, $rekey, $force_array, $group); |
|---|
| 519 | $stmt->free(); |
|---|
| 520 | $result->free(); |
|---|
| 521 | return $all; |
|---|
| 522 | } |
|---|
| 523 | |
|---|
| 524 | // }}} |
|---|
| 525 | // {{{ getAssoc() |
|---|
| 526 | |
|---|
| 527 | /** |
|---|
| 528 | * Fetch the entire result set of a query and return it as an |
|---|
| 529 | * associative array using the first column as the key. |
|---|
| 530 | * |
|---|
| 531 | * If the result set contains more than two columns, the value |
|---|
| 532 | * will be an array of the values from column 2-n. If the result |
|---|
| 533 | * set contains only two columns, the returned value will be a |
|---|
| 534 | * scalar with the value of the second column (unless forced to an |
|---|
| 535 | * array with the $force_array parameter). A MDB2 error code is |
|---|
| 536 | * returned on errors. If the result set contains fewer than two |
|---|
| 537 | * columns, a MDB2_ERROR_TRUNCATED error is returned. |
|---|
| 538 | * |
|---|
| 539 | * For example, if the table 'mytable' contains: |
|---|
| 540 | * <pre> |
|---|
| 541 | * ID TEXT DATE |
|---|
| 542 | * -------------------------------- |
|---|
| 543 | * 1 'one' 944679408 |
|---|
| 544 | * 2 'two' 944679408 |
|---|
| 545 | * 3 'three' 944679408 |
|---|
| 546 | * </pre> |
|---|
| 547 | * Then the call getAssoc('SELECT id,text FROM mytable') returns: |
|---|
| 548 | * <pre> |
|---|
| 549 | * array( |
|---|
| 550 | * '1' => 'one', |
|---|
| 551 | * '2' => 'two', |
|---|
| 552 | * '3' => 'three', |
|---|
| 553 | * ) |
|---|
| 554 | * </pre> |
|---|
| 555 | * ...while the call getAssoc('SELECT id,text,date FROM mytable') returns: |
|---|
| 556 | * <pre> |
|---|
| 557 | * array( |
|---|
| 558 | * '1' => array('one', '944679408'), |
|---|
| 559 | * '2' => array('two', '944679408'), |
|---|
| 560 | * '3' => array('three', '944679408') |
|---|
| 561 | * ) |
|---|
| 562 | * </pre> |
|---|
| 563 | * |
|---|
| 564 | * If the more than one row occurs with the same value in the |
|---|
| 565 | * first column, the last row overwrites all previous ones by |
|---|
| 566 | * default. Use the $group parameter if you don't want to |
|---|
| 567 | * overwrite like this. Example: |
|---|
| 568 | * <pre> |
|---|
| 569 | * getAssoc('SELECT category,id,name FROM mytable', null, null |
|---|
| 570 | * MDB2_FETCHMODE_ASSOC, false, true) returns: |
|---|
| 571 | * array( |
|---|
| 572 | * '1' => array(array('id' => '4', 'name' => 'number four'), |
|---|
| 573 | * array('id' => '6', 'name' => 'number six') |
|---|
| 574 | * ), |
|---|
| 575 | * '9' => array(array('id' => '4', 'name' => 'number four'), |
|---|
| 576 | * array('id' => '6', 'name' => 'number six') |
|---|
| 577 | * ) |
|---|
| 578 | * ) |
|---|
| 579 | * </pre> |
|---|
| 580 | * |
|---|
| 581 | * Keep in mind that database functions in PHP usually return string |
|---|
| 582 | * values for results regardless of the database's internal type. |
|---|
| 583 | * |
|---|
| 584 | * @param string the SQL query |
|---|
| 585 | * @param array that contains the types of the columns in the result set |
|---|
| 586 | * @param array if supplied, prepare/execute will be used |
|---|
| 587 | * with this array as execute parameters |
|---|
| 588 | * @param array that contains the types of the values defined in $params |
|---|
| 589 | * @param bool $force_array used only when the query returns |
|---|
| 590 | * exactly two columns. If TRUE, the values of the returned array |
|---|
| 591 | * will be one-element arrays instead of scalars. |
|---|
| 592 | * @param bool $group if TRUE, the values of the returned array |
|---|
| 593 | * is wrapped in another array. If the same key value (in the first |
|---|
| 594 | * column) repeats itself, the values will be appended to this array |
|---|
| 595 | * instead of overwriting the existing values. |
|---|
| 596 | * |
|---|
| 597 | * @return array|MDB2_Error data on success, a MDB2 error on failure |
|---|
| 598 | * @access public |
|---|
| 599 | */ |
|---|
| 600 | function getAssoc($query, $types = null, $params = array(), $param_types = null, |
|---|
| 601 | $fetchmode = MDB2_FETCHMODE_DEFAULT, $force_array = false, $group = false) |
|---|
| 602 | { |
|---|
| 603 | $db =& $this->getDBInstance(); |
|---|
| 604 | if (PEAR::isError($db)) { |
|---|
| 605 | return $db; |
|---|
| 606 | } |
|---|
| 607 | |
|---|
| 608 | settype($params, 'array'); |
|---|
| 609 | if (empty($params)) { |
|---|
| 610 | return $db->queryAll($query, $types, $fetchmode, true, $force_array, $group); |
|---|
| 611 | } |
|---|
| 612 | |
|---|
| 613 | $stmt = $db->prepare($query, $param_types, $types); |
|---|
| 614 | if (PEAR::isError($stmt)) { |
|---|
| 615 | return $stmt; |
|---|
| 616 | } |
|---|
| 617 | |
|---|
| 618 | $result = $stmt->execute($params); |
|---|
| 619 | if (!MDB2::isResultCommon($result)) { |
|---|
| 620 | return $result; |
|---|
| 621 | } |
|---|
| 622 | |
|---|
| 623 | $all = $result->fetchAll($fetchmode, true, $force_array, $group); |
|---|
| 624 | $stmt->free(); |
|---|
| 625 | $result->free(); |
|---|
| 626 | return $all; |
|---|
| 627 | } |
|---|
| 628 | |
|---|
| 629 | // }}} |
|---|
| 630 | // {{{ executeMultiple() |
|---|
| 631 | |
|---|
| 632 | /** |
|---|
| 633 | * This function does several execute() calls on the same statement handle. |
|---|
| 634 | * $params must be an array indexed numerically from 0, one execute call is |
|---|
| 635 | * done for every 'row' in the array. |
|---|
| 636 | * |
|---|
| 637 | * If an error occurs during execute(), executeMultiple() does not execute |
|---|
| 638 | * the unfinished rows, but rather returns that error. |
|---|
| 639 | * |
|---|
| 640 | * @param resource query handle from prepare() |
|---|
| 641 | * @param array numeric array containing the data to insert into the query |
|---|
| 642 | * |
|---|
| 643 | * @return bool|MDB2_Error true on success, a MDB2 error on failure |
|---|
| 644 | * @access public |
|---|
| 645 | * @see prepare(), execute() |
|---|
| 646 | */ |
|---|
| 647 | function executeMultiple(&$stmt, $params = null) |
|---|
| 648 | { |
|---|
| 649 | for ($i = 0, $j = count($params); $i < $j; $i++) { |
|---|
| 650 | $result = $stmt->execute($params[$i]); |
|---|
| 651 | if (PEAR::isError($result)) { |
|---|
| 652 | return $result; |
|---|
| 653 | } |
|---|
| 654 | } |
|---|
| 655 | return MDB2_OK; |
|---|
| 656 | } |
|---|
| 657 | |
|---|
| 658 | // }}} |
|---|
| 659 | // {{{ getBeforeID() |
|---|
| 660 | |
|---|
| 661 | /** |
|---|
| 662 | * Returns the next free id of a sequence if the RDBMS |
|---|
| 663 | * does not support auto increment |
|---|
| 664 | * |
|---|
| 665 | * @param string name of the table into which a new row was inserted |
|---|
| 666 | * @param string name of the field into which a new row was inserted |
|---|
| 667 | * @param bool when true the sequence is automatic created, if it not exists |
|---|
| 668 | * @param bool if the returned value should be quoted |
|---|
| 669 | * |
|---|
| 670 | * @return int|MDB2_Error id on success, a MDB2 error on failure |
|---|
| 671 | * @access public |
|---|
| 672 | */ |
|---|
| 673 | function getBeforeID($table, $field = null, $ondemand = true, $quote = true) |
|---|
| 674 | { |
|---|
| 675 | $db =& $this->getDBInstance(); |
|---|
| 676 | if (PEAR::isError($db)) { |
|---|
| 677 | return $db; |
|---|
| 678 | } |
|---|
| 679 | |
|---|
| 680 | if ($db->supports('auto_increment') !== true) { |
|---|
| 681 | $seq = $table.(empty($field) ? '' : '_'.$field); |
|---|
| 682 | $id = $db->nextID($seq, $ondemand); |
|---|
| 683 | if (!$quote || PEAR::isError($id)) { |
|---|
| 684 | return $id; |
|---|
| 685 | } |
|---|
| 686 | return $db->quote($id, 'integer'); |
|---|
| 687 | } elseif (!$quote) { |
|---|
| 688 | return null; |
|---|
| 689 | } |
|---|
| 690 | return 'NULL'; |
|---|
| 691 | } |
|---|
| 692 | |
|---|
| 693 | // }}} |
|---|
| 694 | // {{{ getAfterID() |
|---|
| 695 | |
|---|
| 696 | /** |
|---|
| 697 | * Returns the autoincrement ID if supported or $id |
|---|
| 698 | * |
|---|
| 699 | * @param mixed value as returned by getBeforeId() |
|---|
| 700 | * @param string name of the table into which a new row was inserted |
|---|
| 701 | * @param string name of the field into which a new row was inserted |
|---|
| 702 | * |
|---|
| 703 | * @return int|MDB2_Error id on success, a MDB2 error on failure |
|---|
| 704 | * @access public |
|---|
| 705 | */ |
|---|
| 706 | function getAfterID($id, $table, $field = null) |
|---|
| 707 | { |
|---|
| 708 | $db =& $this->getDBInstance(); |
|---|
| 709 | if (PEAR::isError($db)) { |
|---|
| 710 | return $db; |
|---|
| 711 | } |
|---|
| 712 | |
|---|
| 713 | if ($db->supports('auto_increment') !== true) { |
|---|
| 714 | return $id; |
|---|
| 715 | } |
|---|
| 716 | return $db->lastInsertID($table, $field); |
|---|
| 717 | } |
|---|
| 718 | |
|---|
| 719 | // }}} |
|---|
| 720 | } |
|---|
| 721 | ?> |
|---|