843 lines
28 KiB
PHP
843 lines
28 KiB
PHP
<?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.doctrine-project.org>.
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*/
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namespace Doctrine\DBAL\Platforms;
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use Doctrine\Common\DoctrineException;
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/**
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* The MySqlPlatform provides the behavior, features and SQL dialect of the
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* MySQL database platform. This platform represents a MySQL 5.0 or greater platform that
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* uses the InnoDB storage engine.
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*
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* @since 2.0
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* @author Roman Borschel <roman@code-factory.org>
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*/
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class MySqlPlatform extends AbstractPlatform
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{
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/**
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* Creates a new MySqlPlatform instance.
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*/
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public function __construct()
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{
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parent::__construct();
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}
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/**
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* Gets the character used for identifier quoting.
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*
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* @return string
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* @override
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*/
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public function getIdentifierQuoteCharacter()
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{
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return '`';
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}
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/**
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* Returns the regular expression operator.
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*
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* @return string
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* @override
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*/
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public function getRegexpExpression()
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{
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return 'RLIKE';
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}
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/**
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* return string to call a function to get random value inside an SQL statement
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*
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* @return string to generate float between 0 and 1
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*/
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public function getRandomExpression()
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{
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return 'RAND()';
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}
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/**
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* Builds a pattern matching string.
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*
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* EXPERIMENTAL
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*
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* WARNING: this function is experimental and may change signature at
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* any time until labelled as non-experimental.
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*
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* @param array $pattern even keys are strings, odd are patterns (% and _)
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* @param string $operator optional pattern operator (LIKE, ILIKE and maybe others in the future)
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* @param string $field optional field name that is being matched against
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* (might be required when emulating ILIKE)
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*
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* @return string SQL pattern
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* @override
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*/
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public function getMatchPatternExpression($pattern, $operator = null, $field = null)
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{
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$match = '';
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if ( ! is_null($operator)) {
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$field = is_null($field) ? '' : $field.' ';
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$operator = strtoupper($operator);
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switch ($operator) {
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// case insensitive
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case 'ILIKE':
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$match = $field.'LIKE ';
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break;
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// case sensitive
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case 'LIKE':
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$match = $field.'LIKE BINARY ';
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break;
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default:
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throw DoctrineException::operatorNotSupported($operator);
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}
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}
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$match.= "'";
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foreach ($pattern as $key => $value) {
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if ($key % 2) {
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$match .= $value;
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} else {
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$match .= $this->conn->escapePattern($this->conn->escape($value));
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}
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}
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$match.= "'";
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$match.= $this->patternEscapeString();
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return $match;
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}
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/**
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* Returns global unique identifier
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*
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* @return string to get global unique identifier
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* @override
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*/
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public function getGuidExpression()
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{
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return 'UUID()';
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}
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/**
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* Returns a series of strings concatinated
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*
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* concat() accepts an arbitrary number of parameters. Each parameter
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* must contain an expression or an array with expressions.
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*
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* @param string|array(string) strings that will be concatinated.
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* @override
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*/
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public function getConcatExpression()
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{
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$args = func_get_args();
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return 'CONCAT(' . join(', ', (array) $args) . ')';
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}
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public function getListDatabasesSql()
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{
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return 'SHOW DATABASES';
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}
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public function getListFunctionsSql()
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{
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return 'SELECT SPECIFIC_NAME FROM information_schema.ROUTINES';
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}
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public function getListSequencesSql($database)
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{
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$query = 'SHOW TABLES';
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if ( ! is_null($database)) {
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$query .= ' FROM ' . $database;
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}
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return $query;
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}
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public function getListTableConstraintsSql($table)
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{
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return 'SHOW INDEX FROM ' . $table;
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}
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public function getListTableIndexesSql($table)
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{
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return 'SHOW INDEX FROM ' . $table;
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}
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public function getListUsersSql()
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{
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return "SELECT * FROM mysql.user WHERE user != '' GROUP BY user";
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}
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public function getListTriggersSql($table = null)
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{
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$sql = "SELECT TRIGGER_NAME FROM information_schema.TRIGGERS";
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if($table !== null) {
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$sql .= " WHERE EVENT_OBJECT_TABLE = '".$table."'";
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}
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return $sql;
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}
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public function getListViewsSql($database = null)
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{
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$sql = 'SELECT * FROM information_schema.VIEWS';
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if($database !== null) {
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$sql .= " WHERE TABLE_SCHEMA = '".$database."'";
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}
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return $sql;
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}
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public function getListTableForeignKeysSql($table, $database = null)
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{
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$sql = "SELECT `CONSTRAINT_NAME`, `COLUMN_NAME`, `REFERENCED_TABLE_NAME`, ".
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"`REFERENCED_COLUMN_NAME` FROM information_schema.key_column_usage WHERE table_name = '" . $table . "'";
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if ( ! is_null($database)) {
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$sql .= " AND table_schema = '$database'";
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}
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$sql .= " AND `REFERENCED_COLUMN_NAME` is not NULL";
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return $sql;
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}
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public function getCreateViewSql($name, $sql)
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{
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return 'CREATE VIEW ' . $name . ' AS ' . $sql;
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}
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public function getDropViewSql($name)
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{
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return 'DROP VIEW '. $name;
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}
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/**
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* Gets the SQL snippet used to declare a VARCHAR column on the MySql platform.
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*
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* @params array $field
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*/
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public function getVarcharTypeDeclarationSql(array $field)
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{
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if ( ! isset($field['length'])) {
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if (array_key_exists('default', $field)) {
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$field['length'] = $this->getVarcharMaxLength();
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} else {
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$field['length'] = false;
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}
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}
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$length = ($field['length'] <= $this->getVarcharMaxLength()) ? $field['length'] : false;
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$fixed = (isset($field['fixed'])) ? $field['fixed'] : false;
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return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)')
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: ($length ? 'VARCHAR(' . $length . ')' : 'VARCHAR(255)');
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}
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/** @override */
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public function getClobTypeDeclarationSql(array $field)
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{
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if ( ! empty($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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} else if ($length <= 65532) {
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return 'TEXT';
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} else if ($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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}
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/**
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* Obtain DBMS specific SQL code portion needed to set the CHARACTER SET
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* of a field declaration to be used in statements like CREATE TABLE.
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*
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* @param string $charset name of the charset
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* @return string DBMS specific SQL code portion needed to set the CHARACTER SET
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* of a field declaration.
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*/
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public function getCharsetFieldDeclaration($charset)
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{
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return 'CHARACTER SET ' . $charset;
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}
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/**
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* @override
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*/
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public function getDateTimeTypeDeclarationSql(array $fieldDeclaration)
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{
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if (isset($fieldDeclaration['version']) && $fieldDeclaration['version'] == true) {
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return 'TIMESTAMP';
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} else {
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return 'DATETIME';
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}
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}
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/**
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* @override
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*/
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public function getDateTypeDeclarationSql(array $fieldDeclaration)
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{
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return 'DATE';
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}
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/**
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* @override
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*/
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public function getTimeTypeDeclarationSql(array $fieldDeclaration)
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{
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return 'TIME';
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}
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/**
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* @override
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*/
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public function getBooleanTypeDeclarationSql(array $field)
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{
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return 'TINYINT(1)';
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}
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/**
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* Obtain DBMS specific SQL code portion needed to set the COLLATION
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* of a field declaration to be used in statements like CREATE TABLE.
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*
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* @param string $collation name of the collation
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* @return string DBMS specific SQL code portion needed to set the COLLATION
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* of a field declaration.
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*/
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public function getCollationFieldDeclaration($collation)
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{
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return 'COLLATE ' . $collation;
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}
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/**
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* Whether the platform prefers identity columns for ID generation.
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* MySql prefers "autoincrement" identity columns since sequences can only
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* be emulated with a table.
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*
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* @return boolean
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* @override
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*/
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public function prefersIdentityColumns()
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{
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return true;
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}
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/**
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* Whether the platform supports identity columns.
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* MySql supports this through AUTO_INCREMENT columns.
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*
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* @return boolean
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* @override
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*/
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public function supportsIdentityColumns()
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{
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return true;
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}
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/**
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* Whether the platform supports savepoints. MySql does not.
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*
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* @return boolean
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* @override
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*/
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public function supportsSavepoints()
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{
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return false;
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}
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public function getShowDatabasesSql()
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{
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return 'SHOW DATABASES';
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}
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public function getListTablesSql()
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{
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return 'SHOW FULL TABLES WHERE Table_type = "BASE TABLE"';
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}
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public function getListTableColumnsSql($table)
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{
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return 'DESCRIBE ' . $table;
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}
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/**
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* create a new database
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*
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* @param string $name name of the database that should be created
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* @return string
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* @override
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*/
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public function getCreateDatabaseSql($name)
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{
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return 'CREATE DATABASE ' . $name;
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}
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/**
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* drop an existing database
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*
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* @param string $name name of the database that should be dropped
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* @return string
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* @override
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*/
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public function getDropDatabaseSql($name)
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{
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return 'DROP DATABASE ' . $name;
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}
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/**
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* create a new table
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*
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* @param string $tableName Name of the database that should be created
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* @param array $columns Associative array that contains the definition of each field of the new table
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* The indexes of the array entries are the names of the fields of the table an
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* the array entry values are associative arrays like those that are meant to be
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* passed with the field definitions to get[Type]Declaration() functions.
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* array(
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* 'id' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* 'notnull' => 1
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* 'default' => 0
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* ),
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* 'name' => array(
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* 'type' => 'text',
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* 'length' => 12
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* ),
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* 'password' => array(
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* 'type' => 'text',
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* 'length' => 12
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* )
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* );
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* @param array $options An associative array of table options:
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* array(
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* 'comment' => 'Foo',
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* 'charset' => 'utf8',
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* 'collate' => 'utf8_unicode_ci',
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* 'type' => 'innodb',
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* );
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*
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* @return void
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* @override
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*/
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protected function _getCreateTableSql($tableName, array $columns, array $options = array())
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{
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if ( ! $tableName) {
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throw DoctrineException::missingTableName();
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}
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if (empty($columns)) {
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throw DoctrineException::missingFieldsArrayForTable($tableName);
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}
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$queryFields = $this->getColumnDeclarationListSql($columns);
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if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
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foreach ($options['uniqueConstraints'] as $uniqueConstraint) {
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$queryFields .= ', UNIQUE(' . implode(', ', array_values($uniqueConstraint)) . ')';
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}
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}
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// add all indexes
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if (isset($options['indexes']) && ! empty($options['indexes'])) {
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foreach($options['indexes'] as $index => $definition) {
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$queryFields .= ', ' . $this->getIndexDeclarationSql($index, $definition);
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}
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}
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// attach all primary keys
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if (isset($options['primary']) && ! empty($options['primary'])) {
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$keyColumns = array_unique(array_values($options['primary']));
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$queryFields .= ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
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}
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$query = 'CREATE ';
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if (!empty($options['temporary'])) {
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$query .= 'TEMPORARY ';
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}
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$query.= 'TABLE ' . $tableName . ' (' . $queryFields . ')';
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$optionStrings = array();
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if (isset($options['comment'])) {
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$optionStrings['comment'] = 'COMMENT = ' . $this->quote($options['comment'], 'text');
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}
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if (isset($options['charset'])) {
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$optionStrings['charset'] = 'DEFAULT CHARACTER SET ' . $options['charset'];
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if (isset($options['collate'])) {
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$optionStrings['charset'] .= ' COLLATE ' . $options['collate'];
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}
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}
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// get the type of the table
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if (isset($options['engine'])) {
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$optionStrings[] = 'ENGINE = ' . $engine;
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} else {
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// default to innodb
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$optionStrings[] = 'ENGINE = InnoDB';
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}
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if ( ! empty($optionStrings)) {
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$query.= ' '.implode(' ', $optionStrings);
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}
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$sql[] = $query;
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if (isset($options['foreignKeys'])) {
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foreach ((array) $options['foreignKeys'] as $definition) {
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$sql[] = $this->getCreateForeignKeySql($definition, $tableName);
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}
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}
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return $sql;
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}
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/**
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* Gets the SQL to alter an existing table.
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*
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* @param string $name The name of the table that is intended to be changed.
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* @param array $changes Associative array that contains the details of each type
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* of change that is intended to be performed. The types of
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* changes that are currently supported are defined as follows:
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*
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* name
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*
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* New name for the table.
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*
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* add
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*
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* Associative array with the names of fields to be added as
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* indexes of the array. The value of each entry of the array
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* should be set to another associative array with the properties
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* of the fields to be added. The properties of the fields should
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* be the same as defined by the Metabase parser.
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*
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*
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* remove
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*
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* Associative array with the names of fields to be removed as indexes
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* of the array. Currently the values assigned to each entry are ignored.
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* An empty array should be used for future compatibility.
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*
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* rename
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*
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* Associative array with the names of fields to be renamed as indexes
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* of the array. The value of each entry of the array should be set to
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* another associative array with the entry named name with the new
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* field name and the entry named Declaration that is expected to contain
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* the portion of the field declaration already in DBMS specific SQL code
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* as it is used in the CREATE TABLE statement.
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*
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* change
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*
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* Associative array with the names of the fields to be changed as indexes
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* of the array. Keep in mind that if it is intended to change either the
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* name of a field and any other properties, the change array entries
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* should have the new names of the fields as array indexes.
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*
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* The value of each entry of the array should be set to another associative
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* array with the properties of the fields to that are meant to be changed as
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* array entries. These entries should be assigned to the new values of the
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* respective properties. The properties of the fields should be the same
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* as defined by the Metabase parser.
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*
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* Example
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* array(
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* 'name' => 'userlist',
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* 'add' => array(
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* 'quota' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* )
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* ),
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* 'remove' => array(
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* 'file_limit' => array(),
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* 'time_limit' => array()
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* ),
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* 'change' => array(
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* 'name' => array(
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* 'length' => '20',
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* 'definition' => array(
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* 'type' => 'text',
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* 'length' => 20,
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* ),
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* )
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* ),
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* 'rename' => array(
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* 'sex' => array(
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* 'name' => 'gender',
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* 'definition' => array(
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* 'type' => 'text',
|
|
* 'length' => 1,
|
|
* 'default' => 'M',
|
|
* ),
|
|
* )
|
|
* )
|
|
* )
|
|
*
|
|
* @param boolean $check indicates whether the function should just check if the DBMS driver
|
|
* can perform the requested table alterations if the value is true or
|
|
* actually perform them otherwise.
|
|
* @return boolean
|
|
* @override
|
|
*/
|
|
public function getAlterTableSql($name, array $changes, $check = false)
|
|
{
|
|
if ( ! $name) {
|
|
throw DoctrineException::missingTableName();
|
|
}
|
|
|
|
foreach ($changes as $changeName => $change) {
|
|
switch ($changeName) {
|
|
case 'add':
|
|
case 'remove':
|
|
case 'change':
|
|
case 'rename':
|
|
case 'name':
|
|
break;
|
|
default:
|
|
throw \Doctrine\Common\DoctrineException::alterTableChangeNotSupported($changeName);
|
|
}
|
|
}
|
|
|
|
if ($check) {
|
|
return true;
|
|
}
|
|
|
|
$query = '';
|
|
if ( ! empty($changes['name'])) {
|
|
$query .= 'RENAME TO ' . $changes['name'];
|
|
}
|
|
|
|
if ( ! empty($changes['add']) && is_array($changes['add'])) {
|
|
foreach ($changes['add'] as $fieldName => $field) {
|
|
if ($query) {
|
|
$query.= ', ';
|
|
}
|
|
$query.= 'ADD ' . $this->getColumnDeclarationSql($fieldName, $field);
|
|
}
|
|
}
|
|
|
|
if ( ! empty($changes['remove']) && is_array($changes['remove'])) {
|
|
foreach ($changes['remove'] as $fieldName => $field) {
|
|
if ($query) {
|
|
$query .= ', ';
|
|
}
|
|
$query .= 'DROP ' . $fieldName;
|
|
}
|
|
}
|
|
|
|
$rename = array();
|
|
if ( ! empty($changes['rename']) && is_array($changes['rename'])) {
|
|
foreach ($changes['rename'] as $fieldName => $field) {
|
|
$rename[$field['name']] = $fieldName;
|
|
}
|
|
}
|
|
|
|
if ( ! empty($changes['change']) && is_array($changes['change'])) {
|
|
foreach ($changes['change'] as $fieldName => $field) {
|
|
if ($query) {
|
|
$query.= ', ';
|
|
}
|
|
if (isset($rename[$fieldName])) {
|
|
$oldFieldName = $rename[$fieldName];
|
|
unset($rename[$fieldName]);
|
|
} else {
|
|
$oldFieldName = $fieldName;
|
|
}
|
|
$query .= 'CHANGE ' . $oldFieldName . ' '
|
|
. $this->getColumnDeclarationSql($fieldName, $field['definition']);
|
|
}
|
|
}
|
|
|
|
if ( ! empty($rename) && is_array($rename)) {
|
|
foreach ($rename as $renameName => $renamedField) {
|
|
if ($query) {
|
|
$query.= ', ';
|
|
}
|
|
$field = $changes['rename'][$renamedField];
|
|
$query .= 'CHANGE ' . $renamedField . ' '
|
|
. $this->getColumnDeclarationSql($field['name'], $field['definition']);
|
|
}
|
|
}
|
|
|
|
if ( ! $query) {
|
|
return false;
|
|
}
|
|
|
|
return array('ALTER TABLE ' . $name . ' ' . $query);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
* @override
|
|
*/
|
|
public function getIntegerTypeDeclarationSql(array $field)
|
|
{
|
|
return 'INT' . $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getBigIntTypeDeclarationSql(array $field)
|
|
{
|
|
return 'BIGINT' . $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getSmallIntTypeDeclarationSql(array $field)
|
|
{
|
|
return 'SMALLINT' . $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
protected function _getCommonIntegerTypeDeclarationSql(array $columnDef)
|
|
{
|
|
$autoinc = '';
|
|
if ( ! empty($columnDef['autoincrement'])) {
|
|
$autoinc = ' AUTO_INCREMENT';
|
|
}
|
|
$unsigned = (isset($columnDef['unsigned']) && $columnDef['unsigned']) ? ' UNSIGNED' : '';
|
|
|
|
return $unsigned . $autoinc;
|
|
}
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to set an index
|
|
* declaration to be used in statements like CREATE TABLE.
|
|
*
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getIndexFieldDeclarationListSql(array $fields)
|
|
{
|
|
$declFields = array();
|
|
|
|
foreach ($fields as $fieldName => $field) {
|
|
$fieldString = $fieldName;
|
|
|
|
if (is_array($field)) {
|
|
if (isset($field['length'])) {
|
|
$fieldString .= '(' . $field['length'] . ')';
|
|
}
|
|
|
|
if (isset($field['sorting'])) {
|
|
$sort = strtoupper($field['sorting']);
|
|
switch ($sort) {
|
|
case 'ASC':
|
|
case 'DESC':
|
|
$fieldString .= ' ' . $sort;
|
|
break;
|
|
default:
|
|
throw DoctrineException::unknownIndexSortingOption($sort);
|
|
}
|
|
}
|
|
} else {
|
|
$fieldString = $field;
|
|
}
|
|
$declFields[] = $fieldString;
|
|
}
|
|
return implode(', ', $declFields);
|
|
}
|
|
|
|
/**
|
|
* Return the FOREIGN KEY query section dealing with non-standard options
|
|
* as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
|
|
*
|
|
* @param ForeignKeyConstraint $foreignKey
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getAdvancedForeignKeyOptionsSql(\Doctrine\DBAL\Schema\ForeignKeyConstraint $foreignKey)
|
|
{
|
|
$query = '';
|
|
if ($foreignKey->hasOption('match')) {
|
|
$query .= ' MATCH ' . $foreignKey->getOption('match');
|
|
}
|
|
$query .= parent::getAdvancedForeignKeyOptionsSql($foreignKey);
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* Gets the SQL to drop an index of a table.
|
|
*
|
|
* @param Index $index name of the index to be dropped
|
|
* @param string|Table $table name of table that should be used in method
|
|
* @override
|
|
*/
|
|
public function getDropIndexSql($index, $table=null)
|
|
{
|
|
if($index instanceof \Doctrine\DBAL\Schema\Index) {
|
|
$index = $index->getName();
|
|
} else if(!is_string($index)) {
|
|
throw new \InvalidArgumentException('MysqlPlatform::getDropIndexSql() expects $index parameter to be string or \Doctrine\DBAL\Schema\Index.');
|
|
}
|
|
|
|
if($table instanceof \Doctrine\DBAL\Schema\Table) {
|
|
$table = $table->getName();
|
|
} else if(!is_string($table)) {
|
|
throw new \InvalidArgumentException('MysqlPlatform::getDropIndexSql() expects $table parameter to be string or \Doctrine\DBAL\Schema\Table.');
|
|
}
|
|
|
|
return 'DROP INDEX ' . $index . ' ON ' . $table;
|
|
}
|
|
|
|
/**
|
|
* Gets the SQL to drop a table.
|
|
*
|
|
* @param string $table The name of table to drop.
|
|
* @override
|
|
*/
|
|
public function getDropTableSql($table)
|
|
{
|
|
return 'DROP TABLE ' . $table;
|
|
}
|
|
|
|
public function getSetTransactionIsolationSql($level)
|
|
{
|
|
return 'SET SESSION TRANSACTION ISOLATION LEVEL ' . $this->_getTransactionIsolationLevelSql($level);
|
|
}
|
|
|
|
/**
|
|
* Get the platform name for this instance.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getName()
|
|
{
|
|
return 'mysql';
|
|
}
|
|
}
|