diff options
| author | till <till@php.net> | 2008-02-03 12:58:34 +0000 |
|---|---|---|
| committer | till <till@php.net> | 2008-02-03 12:58:34 +0000 |
| commit | 95ebbc985a0e64a364e880de89dbc1ae7952d91e (patch) | |
| tree | 78474efc88790b6d88e4976b51c7bebb5d017a37 /program/lib/MDB2/Driver/Datatype/sqlite.php | |
| parent | 9f5bd376b47f41924ede3d8136302d0f7b81c89f (diff) | |
* putting latest MDB2 into SVN
* adding MDB2 drivers for mssql, mysql, mysqli, pgsql, sqlite
Diffstat (limited to 'program/lib/MDB2/Driver/Datatype/sqlite.php')
| -rw-r--r-- | program/lib/MDB2/Driver/Datatype/sqlite.php | 412 |
1 files changed, 412 insertions, 0 deletions
diff --git a/program/lib/MDB2/Driver/Datatype/sqlite.php b/program/lib/MDB2/Driver/Datatype/sqlite.php new file mode 100644 index 000000000..e518e45fa --- /dev/null +++ b/program/lib/MDB2/Driver/Datatype/sqlite.php @@ -0,0 +1,412 @@ +<?php
+// vim: set et ts=4 sw=4 fdm=marker:
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
+// | Stig. S. Bakken, Lukas Smith |
+// | All rights reserved. |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
+// | API as well as database abstraction for PHP applications. |
+// | This LICENSE is in the BSD license style. |
+// | |
+// | Redistribution and use in source and binary forms, with or without |
+// | modification, are permitted provided that the following conditions |
+// | are met: |
+// | |
+// | Redistributions of source code must retain the above copyright |
+// | notice, this list of conditions and the following disclaimer. |
+// | |
+// | Redistributions in binary form must reproduce the above copyright |
+// | notice, this list of conditions and the following disclaimer in the |
+// | documentation and/or other materials provided with the distribution. |
+// | |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission. |
+// | |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
+// | POSSIBILITY OF SUCH DAMAGE. |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org> |
+// +----------------------------------------------------------------------+
+//
+// $Id: sqlite.php,v 1.65 2007/12/03 20:59:51 quipo Exp $
+//
+
+require_once 'MDB2/Driver/Datatype/Common.php';
+
+/**
+ * MDB2 SQLite driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Datatype_sqlite extends MDB2_Driver_Datatype_Common
+{
+ // {{{ _getCollationFieldDeclaration()
+
+ /**
+ * Obtain DBMS specific SQL code portion needed to set the COLLATION
+ * of a field declaration to be used in statements like CREATE TABLE.
+ *
+ * @param string $collation name of the collation
+ *
+ * @return string DBMS specific SQL code portion needed to set the COLLATION
+ * of a field declaration.
+ */
+ function _getCollationFieldDeclaration($collation)
+ {
+ return 'COLLATE '.$collation;
+ }
+
+ // }}}
+ // {{{ getTypeDeclaration()
+
+ /**
+ * Obtain DBMS specific SQL code portion needed to declare an text type
+ * field to be used in statements like CREATE TABLE.
+ *
+ * @param array $field associative array with the name of the properties
+ * of the field being declared as array indexes. Currently, the types
+ * of supported field properties are as follows:
+ *
+ * length
+ * Integer value that determines the maximum length of the text
+ * field. If this argument is missing the field should be
+ * declared to have the longest length allowed by the DBMS.
+ *
+ * default
+ * Text value to be used as default for this field.
+ *
+ * notnull
+ * Boolean flag that indicates whether this field is constrained
+ * to not be set to null.
+ * @return string DBMS specific SQL code portion that should be used to
+ * declare the specified field.
+ * @access public
+ */
+ function getTypeDeclaration($field)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ switch ($field['type']) {
+ case 'text':
+ $length = !empty($field['length'])
+ ? $field['length'] : false;
+ $fixed = !empty($field['fixed']) ? $field['fixed'] : false;
+ return $fixed ? ($length ? 'CHAR('.$length.')' : 'CHAR('.$db->options['default_text_field_length'].')')
+ : ($length ? 'VARCHAR('.$length.')' : 'TEXT');
+ case 'clob':
+ if (!empty($field['length'])) {
+ $length = $field['length'];
+ if ($length <= 255) {
+ return 'TINYTEXT';
+ } elseif ($length <= 65532) {
+ return 'TEXT';
+ } elseif ($length <= 16777215) {
+ return 'MEDIUMTEXT';
+ }
+ }
+ return 'LONGTEXT';
+ case 'blob':
+ if (!empty($field['length'])) {
+ $length = $field['length'];
+ if ($length <= 255) {
+ return 'TINYBLOB';
+ } elseif ($length <= 65532) {
+ return 'BLOB';
+ } elseif ($length <= 16777215) {
+ return 'MEDIUMBLOB';
+ }
+ }
+ return 'LONGBLOB';
+ case 'integer':
+ if (!empty($field['length'])) {
+ $length = $field['length'];
+ if ($length <= 2) {
+ return 'SMALLINT';
+ } elseif ($length == 3 || $length == 4) {
+ return 'INTEGER';
+ } elseif ($length > 4) {
+ return 'BIGINT';
+ }
+ }
+ return 'INTEGER';
+ case 'boolean':
+ return 'BOOLEAN';
+ case 'date':
+ return 'DATE';
+ case 'time':
+ return 'TIME';
+ case 'timestamp':
+ return 'DATETIME';
+ case 'float':
+ return 'DOUBLE'.($db->options['fixed_float'] ? '('.
+ ($db->options['fixed_float']+2).','.$db->options['fixed_float'].')' : '');
+ case 'decimal':
+ $length = !empty($field['length']) ? $field['length'] : 18;
+ $scale = !empty($field['scale']) ? $field['scale'] : $db->options['decimal_places'];
+ return 'DECIMAL('.$length.','.$scale.')';
+ }
+ return '';
+ }
+
+ // }}}
+ // {{{ _getIntegerDeclaration()
+
+ /**
+ * Obtain DBMS specific SQL code portion needed to declare an integer type
+ * field to be used in statements like CREATE TABLE.
+ *
+ * @param string $name name the field to be declared.
+ * @param string $field associative array with the name of the properties
+ * of the field being declared as array indexes.
+ * Currently, the types of supported field
+ * properties are as follows:
+ *
+ * unsigned
+ * Boolean flag that indicates whether the field
+ * should be declared as unsigned integer if
+ * possible.
+ *
+ * default
+ * Integer value to be used as default for this
+ * field.
+ *
+ * notnull
+ * Boolean flag that indicates whether this field is
+ * constrained to not be set to null.
+ * @return string DBMS specific SQL code portion that should be used to
+ * declare the specified field.
+ * @access protected
+ */
+ function _getIntegerDeclaration($name, $field)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $default = $autoinc = '';
+ if (!empty($field['autoincrement'])) {
+ $autoinc = ' PRIMARY KEY';
+ } elseif (array_key_exists('default', $field)) {
+ if ($field['default'] === '') {
+ $field['default'] = empty($field['notnull']) ? null : 0;
+ }
+ $default = ' DEFAULT '.$this->quote($field['default'], 'integer');
+ } elseif (empty($field['notnull'])) {
+ $default = ' DEFAULT NULL';
+ }
+
+ $notnull = empty($field['notnull']) ? '' : ' NOT NULL';
+ $unsigned = empty($field['unsigned']) ? '' : ' UNSIGNED';
+ $name = $db->quoteIdentifier($name, true);
+ return $name.' '.$this->getTypeDeclaration($field).$unsigned.$default.$notnull.$autoinc;
+ }
+
+ // }}}
+ // {{{ matchPattern()
+
+ /**
+ * build a pattern matching string
+ *
+ * @access public
+ *
+ * @param array $pattern even keys are strings, odd are patterns (% and _)
+ * @param string $operator optional pattern operator (LIKE, ILIKE and maybe others in the future)
+ * @param string $field optional field name that is being matched against
+ * (might be required when emulating ILIKE)
+ *
+ * @return string SQL pattern
+ */
+ function matchPattern($pattern, $operator = null, $field = null)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $match = '';
+ if (!is_null($operator)) {
+ $field = is_null($field) ? '' : $field.' ';
+ $operator = strtoupper($operator);
+ switch ($operator) {
+ // case insensitive
+ case 'ILIKE':
+ $match = $field.'LIKE ';
+ break;
+ // case sensitive
+ case 'LIKE':
+ $match = $field.'LIKE ';
+ break;
+ default:
+ return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'not a supported operator type:'. $operator, __FUNCTION__);
+ }
+ }
+ $match.= "'";
+ foreach ($pattern as $key => $value) {
+ if ($key % 2) {
+ $match.= $value;
+ } else {
+ $match.= $db->escapePattern($db->escape($value));
+ }
+ }
+ $match.= "'";
+ $match.= $this->patternEscapeString();
+ return $match;
+ }
+
+ // }}}
+ // {{{ _mapNativeDatatype()
+
+ /**
+ * Maps a native array description of a field to a MDB2 datatype and length
+ *
+ * @param array $field native field description
+ * @return array containing the various possible types, length, sign, fixed
+ * @access public
+ */
+ function _mapNativeDatatype($field)
+ {
+ $db_type = strtolower($field['type']);
+ $length = !empty($field['length']) ? $field['length'] : null;
+ $unsigned = !empty($field['unsigned']) ? $field['unsigned'] : null;
+ $fixed = null;
+ $type = array();
+ switch ($db_type) {
+ case 'boolean':
+ $type[] = 'boolean';
+ break;
+ case 'tinyint':
+ $type[] = 'integer';
+ $type[] = 'boolean';
+ if (preg_match('/^(is|has)/', $field['name'])) {
+ $type = array_reverse($type);
+ }
+ $unsigned = preg_match('/ unsigned/i', $field['type']);
+ $length = 1;
+ break;
+ case 'smallint':
+ $type[] = 'integer';
+ $unsigned = preg_match('/ unsigned/i', $field['type']);
+ $length = 2;
+ break;
+ case 'mediumint':
+ $type[] = 'integer';
+ $unsigned = preg_match('/ unsigned/i', $field['type']);
+ $length = 3;
+ break;
+ case 'int':
+ case 'integer':
+ case 'serial':
+ $type[] = 'integer';
+ $unsigned = preg_match('/ unsigned/i', $field['type']);
+ $length = 4;
+ break;
+ case 'bigint':
+ case 'bigserial':
+ $type[] = 'integer';
+ $unsigned = preg_match('/ unsigned/i', $field['type']);
+ $length = 8;
+ break;
+ case 'clob':
+ $type[] = 'clob';
+ $fixed = false;
+ break;
+ case 'tinytext':
+ case 'mediumtext':
+ case 'longtext':
+ case 'text':
+ case 'varchar':
+ case 'varchar2':
+ $fixed = false;
+ case 'char':
+ $type[] = 'text';
+ if ($length == '1') {
+ $type[] = 'boolean';
+ if (preg_match('/^(is|has)/', $field['name'])) {
+ $type = array_reverse($type);
+ }
+ } elseif (strstr($db_type, 'text')) {
+ $type[] = 'clob';
+ $type = array_reverse($type);
+ }
+ if ($fixed !== false) {
+ $fixed = true;
+ }
+ break;
+ case 'date':
+ $type[] = 'date';
+ $length = null;
+ break;
+ case 'datetime':
+ case 'timestamp':
+ $type[] = 'timestamp';
+ $length = null;
+ break;
+ case 'time':
+ $type[] = 'time';
+ $length = null;
+ break;
+ case 'float':
+ case 'double':
+ case 'real':
+ $type[] = 'float';
+ break;
+ case 'decimal':
+ case 'numeric':
+ $type[] = 'decimal';
+ $length = $length.','.$field['decimal'];
+ break;
+ case 'tinyblob':
+ case 'mediumblob':
+ case 'longblob':
+ case 'blob':
+ $type[] = 'blob';
+ $length = null;
+ break;
+ case 'year':
+ $type[] = 'integer';
+ $type[] = 'date';
+ $length = null;
+ break;
+ default:
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'unknown database attribute type: '.$db_type, __FUNCTION__);
+ }
+
+ if ((int)$length <= 0) {
+ $length = null;
+ }
+
+ return array($type, $length, $unsigned, $fixed);
+ }
+
+ // }}}
+}
+
+?>
\ No newline at end of file |