| commit | author | age | ||
| c9462d | 1 | <?php |
| S | 2 | // +----------------------------------------------------------------------+ |
| 3 | // | PHP versions 4 and 5 | | |
| 4 | // +----------------------------------------------------------------------+ | |
| 5 | // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | | |
| 6 | // | Stig. S. Bakken, Lukas Smith, Frank M. Kromann | | |
| 7 | // | All rights reserved. | | |
| 8 | // +----------------------------------------------------------------------+ | |
| 9 | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | | |
| 10 | // | API as well as database abstraction for PHP applications. | | |
| 11 | // | This LICENSE is in the BSD license style. | | |
| 12 | // | | | |
| 13 | // | Redistribution and use in source and binary forms, with or without | | |
| 14 | // | modification, are permitted provided that the following conditions | | |
| 15 | // | are met: | | |
| 16 | // | | | |
| 17 | // | Redistributions of source code must retain the above copyright | | |
| 18 | // | notice, this list of conditions and the following disclaimer. | | |
| 19 | // | | | |
| 20 | // | Redistributions in binary form must reproduce the above copyright | | |
| 21 | // | notice, this list of conditions and the following disclaimer in the | | |
| 22 | // | documentation and/or other materials provided with the distribution. | | |
| 23 | // | | | |
| 24 | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | | |
| 25 | // | Lukas Smith nor the names of his contributors may be used to endorse | | |
| 26 | // | or promote products derived from this software without specific prior| | |
| 27 | // | written permission. | | |
| 28 | // | | | |
| 29 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | | |
| 30 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | | |
| 31 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | | |
| 32 | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | | |
| 33 | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | | |
| 34 | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | | |
| 35 | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| | |
| 36 | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | | |
| 37 | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | |
| 38 | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| | |
| 39 | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | | |
| 40 | // | POSSIBILITY OF SUCH DAMAGE. | | |
| 41 | // +----------------------------------------------------------------------+ | |
| 42 | // | Author: Lukas Smith <smith@pooteeweet.org> | | |
| 43 | // +----------------------------------------------------------------------+ | |
| 44 | // | |
| 45 | // $Id$ | |
| 46 | // | |
| 47 | ||
| 48 | require_once 'MDB2/Driver/Reverse/Common.php'; | |
| 49 | ||
| 50 | /** | |
| 51 | * MDB2 InterbaseBase driver for the reverse engineering module | |
| 52 | * | |
| 53 | * @package MDB2 | |
| 54 | * @category Database | |
| 55 | * @author Lukas Smith <smith@dybnet.de> | |
| 56 | */ | |
| 57 | class MDB2_Driver_Reverse_ibase extends MDB2_Driver_Reverse_Common | |
| 58 | { | |
| 59 | // }}} | |
| 60 | // {{{ tableInfo() | |
| 61 | ||
| 62 | /** | |
| 63 | * Returns information about a table or a result set | |
| 64 | * | |
| 65 | * NOTE: only supports 'table' and 'flags' if <var>$result</var> | |
| 66 | * is a table name. | |
| 67 | * | |
| 68 | * @param object|string $result MDB2_result object from a query or a | |
| 69 | * string containing the name of a table. | |
| 70 | * While this also accepts a query result | |
| 71 | * resource identifier, this behavior is | |
| 72 | * deprecated. | |
| 73 | * @param int $mode a valid tableInfo mode | |
| 74 | * | |
| 75 | * @return array an associative array with the information requested. | |
| 76 | * A MDB2_Error object on failure. | |
| 77 | * | |
| 78 | * @see MDB2_Driver_Common::tableInfo() | |
| 79 | */ | |
| 80 | function tableInfo($result, $mode = null) | |
| 81 | { | |
| 82 | $db =& $this->getDBInstance(); | |
| 83 | if (PEAR::isError($db)) { | |
| 84 | return $db; | |
| 85 | } | |
| 86 | ||
| 87 | if (is_string($result)) { | |
| 88 | /* | |
| 89 | * Probably received a table name. | |
| 90 | * Create a result resource identifier. | |
| 91 | */ | |
| 92 | $id = $db->_doQuery("SELECT * FROM $result WHERE 1=0"); | |
| 93 | if (PEAR::isError($id)) { | |
| 94 | return $id; | |
| 95 | } | |
| 96 | $got_string = true; | |
| 97 | } elseif (MDB2::isResultCommon($result)) { | |
| 98 | /* | |
| 99 | * Probably received a result object. | |
| 100 | * Extract the result resource identifier. | |
| 101 | */ | |
| 102 | $id = $result->getResource(); | |
| 103 | $got_string = false; | |
| 104 | } else { | |
| 105 | /* | |
| 106 | * Probably received a result resource identifier. | |
| 107 | * Copy it. | |
| 108 | * Deprecated. Here for compatibility only. | |
| 109 | */ | |
| 110 | $id = $result; | |
| 111 | $got_string = false; | |
| 112 | } | |
| 113 | ||
| 114 | if (!is_resource($id)) { | |
| 115 | return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA); | |
| 116 | } | |
| 117 | ||
| 118 | if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { | |
| 119 | if ($db->options['field_case'] == CASE_LOWER) { | |
| 120 | $case_func = 'strtolower'; | |
| 121 | } else { | |
| 122 | $case_func = 'strtoupper'; | |
| 123 | } | |
| 124 | } else { | |
| 125 | $case_func = 'strval'; | |
| 126 | } | |
| 127 | ||
| 128 | $count = @ibase_num_fields($id); | |
| 129 | $res = array(); | |
| 130 | ||
| 131 | if ($mode) { | |
| 132 | $res['num_fields'] = $count; | |
| 133 | } | |
| 134 | ||
| 135 | for ($i = 0; $i < $count; $i++) { | |
| 136 | $info = @ibase_field_info($id, $i); | |
| 137 | $res[$i] = array( | |
| 138 | 'table' => $got_string ? $case_func($result) : '', | |
| 139 | 'name' => $case_func($info['name']), | |
| 140 | 'type' => $info['type'], | |
| 141 | 'len' => $info['length'], | |
| 142 | 'flags' => ($got_string) | |
| 143 | ? $this->_ibaseFieldFlags($info['name'], $result) : '', | |
| 144 | ); | |
| 145 | if ($mode & MDB2_TABLEINFO_ORDER) { | |
| 146 | $res['order'][$res[$i]['name']] = $i; | |
| 147 | } | |
| 148 | if ($mode & MDB2_TABLEINFO_ORDERTABLE) { | |
| 149 | $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i; | |
| 150 | } | |
| 151 | } | |
| 152 | ||
| 153 | // free the result only if we were called on a table | |
| 154 | if ($got_string) { | |
| 155 | @ibase_free_result($id); | |
| 156 | } | |
| 157 | return $res; | |
| 158 | } | |
| 159 | ||
| 160 | // }}} | |
| 161 | // {{{ _ibaseFieldFlags() | |
| 162 | ||
| 163 | /** | |
| 164 | * Get the column's flags | |
| 165 | * | |
| 166 | * Supports "primary_key", "unique_key", "not_null", "default", | |
| 167 | * "computed" and "blob". | |
| 168 | * | |
| 169 | * @param string $field_name the name of the field | |
| 170 | * @param string $table_name the name of the table | |
| 171 | * | |
| 172 | * @return string the flags | |
| 173 | * | |
| 174 | * @access protected | |
| 175 | */ | |
| 176 | function _ibaseFieldFlags($field_name, $table_name) | |
| 177 | { | |
| 178 | $db =& $this->getDBInstance(); | |
| 179 | if (PEAR::isError($db)) { | |
| 180 | return $db; | |
| 181 | } | |
| 182 | ||
| 183 | $query = 'SELECT R.RDB$CONSTRAINT_TYPE CTYPE' | |
| 184 | .' FROM RDB$INDEX_SEGMENTS I' | |
| 185 | .' JOIN RDB$RELATION_CONSTRAINTS R ON I.RDB$INDEX_NAME=R.RDB$INDEX_NAME' | |
| 186 | .' WHERE I.RDB$FIELD_NAME=\'' . $field_name . '\'' | |
| 187 | .' AND UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\''; | |
| 188 | ||
| 189 | $result = $db->_doQuery($query); | |
| 190 | if (PEAR::isError($result)) { | |
| 191 | return $result; | |
| 192 | } | |
| 193 | ||
| 194 | $flags = ''; | |
| 195 | if ($obj = @ibase_fetch_object($result)) { | |
| 196 | @ibase_free_result($result); | |
| 197 | if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'PRIMARY KEY') { | |
| 198 | $flags.= 'primary_key '; | |
| 199 | } | |
| 200 | if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'UNIQUE') { | |
| 201 | $flags.= 'unique_key '; | |
| 202 | } | |
| 203 | } | |
| 204 | ||
| 205 | $query = 'SELECT R.RDB$NULL_FLAG AS NFLAG,' | |
| 206 | .' R.RDB$DEFAULT_SOURCE AS DSOURCE,' | |
| 207 | .' F.RDB$FIELD_TYPE AS FTYPE,' | |
| 208 | .' F.RDB$COMPUTED_SOURCE AS CSOURCE' | |
| 209 | .' FROM RDB$RELATION_FIELDS R ' | |
| 210 | .' JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE=F.RDB$FIELD_NAME' | |
| 211 | .' WHERE UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\'' | |
| 212 | .' AND R.RDB$FIELD_NAME=\'' . $field_name . '\''; | |
| 213 | ||
| 214 | $result = $db->_doQuery($query); | |
| 215 | if (PEAR::isError($result)) { | |
| 216 | return $result; | |
| 217 | } | |
| 218 | ||
| 219 | if ($obj = @ibase_fetch_object($result)) { | |
| 220 | @ibase_free_result($result); | |
| 221 | if (isset($obj->NFLAG)) { | |
| 222 | $flags.= 'not_null '; | |
| 223 | } | |
| 224 | if (isset($obj->DSOURCE)) { | |
| 225 | $flags.= 'default '; | |
| 226 | } | |
| 227 | if (isset($obj->CSOURCE)) { | |
| 228 | $flags.= 'computed '; | |
| 229 | } | |
| 230 | if (isset($obj->FTYPE) && $obj->FTYPE == 261) { | |
| 231 | $flags.= 'blob '; | |
| 232 | } | |
| 233 | } | |
| 234 | ||
| 235 | return trim($flags); | |
| 236 | } | |
| 237 | } | |
| 238 | ?> | |
