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<?php
/*
* $Id: Mysql.php 6484 2009-10-12 17:40:41Z jwage $
*
* 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 COPYRIGHT
* OWNER 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.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* @package Doctrine
* @subpackage Import
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @version $Revision: 6484 $
* @link www.phpdoctrine.org
* @since 1.0
*/
class Doctrine_Import_Mysql extends Doctrine_Import
{
protected $sql = array(
'listDatabases' => 'SHOW DATABASES',
'listTableFields' => 'DESCRIBE %s',
'listSequences' => 'SHOW TABLES',
'listTables' => 'SHOW TABLES',
'listUsers' => 'SELECT DISTINCT USER FROM USER',
'listViews' => "SHOW FULL TABLES %s WHERE Table_type = 'VIEW'",
);
/**
* lists all database sequences
*
* @param string|null $database
* @return array
*/
public function listSequences($database = null)
{
$query = 'SHOW TABLES';
if ( ! is_null($database)) {
$query .= ' FROM ' . $database;
}
$tableNames = $this->conn->fetchColumn($query);
return array_map(array($this->conn->formatter, 'fixSequenceName'), $tableNames);
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableConstraints($table)
{
$keyName = 'Key_name';
$nonUnique = 'Non_unique';
if ($this->conn->getAttribute(Doctrine_Core::ATTR_PORTABILITY) & Doctrine_Core::PORTABILITY_FIX_CASE) {
if ($this->conn->getAttribute(Doctrine_Core::ATTR_FIELD_CASE) == CASE_LOWER) {
$keyName = strtolower($keyName);
$nonUnique = strtolower($nonUnique);
} else {
$keyName = strtoupper($keyName);
$nonUnique = strtoupper($nonUnique);
}
}
$table = $this->conn->quoteIdentifier($table, true);
$query = 'SHOW INDEX FROM ' . $table;
$indexes = $this->conn->fetchAssoc($query);
$result = array();
foreach ($indexes as $indexData) {
if ( ! $indexData[$nonUnique]) {
if ($indexData[$keyName] !== 'PRIMARY') {
$index = $this->conn->formatter->fixIndexName($indexData[$keyName]);
} else {
$index = 'PRIMARY';
}
if ( ! empty($index)) {
$result[] = $index;
}
}
}
return $result;
}
/**
* lists table relations
*
* Expects an array of this format to be returned with all the relationships in it where the key is
* the name of the foreign table, and the value is an array containing the local and foreign column
* name
*
* Array
* (
* [groups] => Array
* (
* [local] => group_id
* [foreign] => id
* )
* )
*
* @param string $table database table name
* @return array
*/
public function listTableRelations($tableName)
{
$relations = array();
$sql = "SELECT column_name, REFERENCED_TABLE_NAME, REFERENCED_COLUMN_NAME FROM information_schema.key_column_usage WHERE table_name = '" . $tableName . "' AND table_schema = '" . $this->conn->getDatabaseName() . "' and REFERENCED_COLUMN_NAME is not NULL";
$results = $this->conn->fetchAssoc($sql);
foreach ($results as $result)
{
$result = array_change_key_case($result, CASE_LOWER);
$relations[] = array('table' => $result['referenced_table_name'],
'local' => $result['column_name'],
'foreign' => $result['referenced_column_name']);
}
return $relations;
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableColumns($table)
{
$sql = 'DESCRIBE ' . $this->conn->quoteIdentifier($table, true);
$result = $this->conn->fetchAssoc($sql);
$description = array();
$columns = array();
foreach ($result as $key => $val) {
$val = array_change_key_case($val, CASE_LOWER);
$decl = $this->conn->dataDict->getPortableDeclaration($val);
$values = isset($decl['values']) ? $decl['values'] : array();
$val['default'] = $val['default'] == 'CURRENT_TIMESTAMP' ? null : $val['default'];
$description = array(
'name' => $val['field'],
'type' => $decl['type'][0],
'alltypes' => $decl['type'],
'ntype' => $val['type'],
'length' => $decl['length'],
'fixed' => (bool) $decl['fixed'],
'unsigned' => (bool) $decl['unsigned'],
'values' => $values,
'primary' => (strtolower($val['key']) == 'pri'),
'default' => $val['default'],
'notnull' => (bool) ($val['null'] != 'YES'),
'autoincrement' => (bool) (strpos($val['extra'], 'auto_increment') !== false),
);
if (isset($decl['scale'])) {
$description['scale'] = $decl['scale'];
}
$columns[$val['field']] = $description;
}
return $columns;
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableIndexes($table)
{
$keyName = 'Key_name';
$nonUnique = 'Non_unique';
if ($this->conn->getAttribute(Doctrine_Core::ATTR_PORTABILITY) & Doctrine_Core::PORTABILITY_FIX_CASE) {
if ($this->conn->getAttribute(Doctrine_Core::ATTR_FIELD_CASE) == CASE_LOWER) {
$keyName = strtolower($keyName);
$nonUnique = strtolower($nonUnique);
} else {
$keyName = strtoupper($keyName);
$nonUnique = strtoupper($nonUnique);
}
}
$table = $this->conn->quoteIdentifier($table, true);
$query = 'SHOW INDEX FROM ' . $table;
$indexes = $this->conn->fetchAssoc($query);
$result = array();
foreach ($indexes as $indexData) {
if ($indexData[$nonUnique] && ($index = $this->conn->formatter->fixIndexName($indexData[$keyName]))) {
$result[] = $index;
}
}
return $result;
}
/**
* lists tables
*
* @param string|null $database
* @return array
*/
public function listTables($database = null)
{
return $this->conn->fetchColumn($this->sql['listTables']);
}
/**
* lists database views
*
* @param string|null $database
* @return array
*/
public function listViews($database = null)
{
if (is_null($database)) {
$query = 'SELECT table_name FROM information_schema.VIEWS';
} else {
$query = sprintf($this->sql['listViews'], ' FROM ' . $database);
}
return $this->conn->fetchColumn($query);
}
}
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