2007-01-06 01:05:55 +03:00
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<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.com>.
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*/
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Doctrine::autoload('Doctrine_DataDict');
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/**
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* @package Doctrine
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
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* @version $Revision$
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* @category Object Relational Mapping
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* @link www.phpdoctrine.com
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* @since 1.0
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*/
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class Doctrine_DataDict_Sqlite extends Doctrine_DataDict
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{
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/**
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* Obtain DBMS specific SQL code portion needed to declare an text type
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* field to be used in statements like CREATE TABLE.
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*
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* length
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* Integer value that determines the maximum length of the text
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* field. If this argument is missing the field should be
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* declared to have the longest length allowed by the DBMS.
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*
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* default
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* Text value to be used as default for this field.
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*
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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* @author Lukas Smith (PEAR MDB2 library)
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field.
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*/
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public function getNativeDeclaration(array $field)
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{
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switch ($field['type']) {
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case 'text':
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case 'object':
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case 'array':
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case 'string':
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case 'char':
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case 'gzip':
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case 'varchar':
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$length = (isset($field['length']) && $field['length']) ? $field['length'] : null;
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$fixed = ((isset($field['fixed']) && $field['fixed']) || $field['type'] == 'char') ? true : false;
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return $fixed ? ($length ? 'CHAR('.$length.')' : 'CHAR('.$this->conn->getAttribute(Doctrine::ATTR_DEFAULT_TEXTFLD_LENGTH).')')
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: ($length ? 'VARCHAR('.$length.')' : 'TEXT');
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case 'clob':
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if (!empty($field['length'])) {
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$length = $field['length'];
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if ($length <= 255) {
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return 'TINYTEXT';
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} elseif ($length <= 65535) {
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return 'TEXT';
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} elseif ($length <= 16777215) {
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return 'MEDIUMTEXT';
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}
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}
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return 'LONGTEXT';
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case 'blob':
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if (!empty($field['length'])) {
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$length = $field['length'];
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if ($length <= 255) {
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return 'TINYBLOB';
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} elseif ($length <= 65535) {
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return 'BLOB';
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} elseif ($length <= 16777215) {
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return 'MEDIUMBLOB';
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}
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}
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return 'LONGBLOB';
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case 'enum':
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case 'integer':
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case 'boolean':
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return 'INTEGER';
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case 'date':
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return 'DATE';
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case 'time':
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return 'TIME';
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case 'timestamp':
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return 'DATETIME';
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case 'float':
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case 'double':
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return 'DOUBLE';//($this->conn->options['fixed_float'] ? '('.
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//($this->conn->options['fixed_float']+2).','.$this->conn->options['fixed_float'].')' : '');
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case 'decimal':
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$length = !empty($field['length']) ? $field['length'] : 18;
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return 'DECIMAL('.$length.','.$this->conn->options['decimal_places'].')';
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}
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throw new Doctrine_DataDict_Sqlite_Exception('Unknown datatype ' . $field['type']);
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}
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/**
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* Maps a native array description of a field to Doctrine datatype and length
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*
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* @param array $field native field description
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* @return array containing the various possible types, length, sign, fixed
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*/
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public function getPortableDeclaration(array $field)
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{
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$dbType = strtolower($field['type']);
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$length = (isset($field['length'])) ? $field['length'] : null;
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$unsigned = (isset($field['unsigned'])) ? $field['unsigned'] : null;
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$fixed = null;
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$type = array();
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if ( ! isset($field['name'])) {
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$field['name'] = '';
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}
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switch ($dbType) {
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case 'boolean':
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$type[] = 'boolean';
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break;
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case 'tinyint':
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$type[] = 'integer';
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$type[] = 'boolean';
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if (preg_match('/^(is|has)/', $field['name'])) {
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$type = array_reverse($type);
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}
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$unsigned = preg_match('/ unsigned/i', $field['type']);
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$length = 1;
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break;
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case 'smallint':
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$type[] = 'integer';
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$unsigned = preg_match('/ unsigned/i', $field['type']);
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$length = 2;
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break;
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case 'mediumint':
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$type[] = 'integer';
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$unsigned = preg_match('/ unsigned/i', $field['type']);
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$length = 3;
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break;
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case 'int':
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case 'integer':
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case 'serial':
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$type[] = 'integer';
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$unsigned = preg_match('/ unsigned/i', $field['type']);
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$length = 4;
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break;
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case 'bigint':
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case 'bigserial':
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$type[] = 'integer';
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$unsigned = preg_match('/ unsigned/i', $field['type']);
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$length = 8;
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break;
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case 'clob':
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case 'tinytext':
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case 'mediumtext':
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case 'longtext':
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case 'text':
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case 'varchar':
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case 'varchar2':
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$fixed = false;
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case 'char':
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$type[] = 'text';
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if ($length == '1') {
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$type[] = 'boolean';
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if (preg_match('/^(is|has)/', $field['name'])) {
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$type = array_reverse($type);
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}
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} elseif (strstr($dbType, 'text')) {
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$type[] = 'clob';
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}
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if ($fixed !== false) {
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$fixed = true;
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}
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break;
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case 'date':
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$type[] = 'date';
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$length = null;
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break;
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case 'datetime':
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case 'timestamp':
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$type[] = 'timestamp';
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$length = null;
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break;
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case 'time':
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$type[] = 'time';
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$length = null;
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break;
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case 'float':
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case 'double':
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case 'real':
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$type[] = 'float';
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$length = null;
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break;
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case 'decimal':
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case 'numeric':
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$type[] = 'decimal';
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$length = null;
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break;
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case 'tinyblob':
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case 'mediumblob':
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case 'longblob':
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case 'blob':
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$type[] = 'blob';
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$length = null;
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break;
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case 'year':
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$type[] = 'integer';
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$type[] = 'date';
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$length = null;
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break;
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default:
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throw new Doctrine_DataDict_Sqlite_Exception('unknown database attribute type: '.$dbType);
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}
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return array($type, $length, $unsigned, $fixed);
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}
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/**
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* Obtain DBMS specific SQL code portion needed to declare an integer type
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* field to be used in statements like CREATE TABLE.
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*
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* @param string $name name the field to be declared.
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes.
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* Currently, the types of supported field
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* properties are as follows:
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*
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* unsigned
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* Boolean flag that indicates whether the field
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* should be declared as unsigned integer if
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* possible.
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*
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* default
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* Integer value to be used as default for this
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* field.
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*
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* notnull
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* Boolean flag that indicates whether this field is
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* constrained to not be set to null.
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field.
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* @access protected
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*/
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public function getIntegerDeclaration($name, array $field)
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{
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$default = $autoinc = '';
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$type = $this->getNativeDeclaration($field);
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if (isset($field['autoincrement']) && $field['autoincrement']) {
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$autoinc = ' PRIMARY KEY AUTOINCREMENT';
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$type = 'INTEGER';
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} elseif (array_key_exists('default', $field)) {
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if ($field['default'] === '') {
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$field['default'] = empty($field['notnull']) ? null : 0;
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}
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$default = ' DEFAULT ' . $this->conn->quote($field['default'], $field['type']);
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}/**
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elseif (empty($field['notnull'])) {
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$default = ' DEFAULT NULL';
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}
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*/
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$notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : '';
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$unsigned = (isset($field['unsigned']) && $field['unsigned']) ? ' UNSIGNED' : '';
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$name = $this->conn->quoteIdentifier($name, true);
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return $name . ' ' . $type . $unsigned . $default . $notnull . $autoinc;
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}
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}
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