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<?php
/*
* $Id: Mysql.php 6624 2009-11-03 01:21:08Z 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>.
*/
/**
* Doctrine_Export_Mysql
*
* @package Doctrine
* @subpackage Export
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Revision: 6624 $
*/
class Doctrine_Export_Mysql extends Doctrine_Export
{
/**
* drop existing constraint
*
* @param string $table name of table that should be used in method
* @param string $name name of the constraint to be dropped
* @param string $primary hint if the constraint is primary
* @return void
*/
public function dropConstraint($table, $name, $primary = false)
{
$table = $this->conn->quoteIdentifier($table);
if ( ! $primary) {
$name = 'CONSTRAINT ' . $this->conn->quoteIdentifier($name);
} else {
$name = 'PRIMARY KEY';
}
return $this->conn->exec('ALTER TABLE ' . $table . ' DROP ' . $name);
}
/**
* createDatabaseSql
*
* @param string $name
* @return void
*/
public function createDatabaseSql($name)
{
return 'CREATE DATABASE ' . $this->conn->quoteIdentifier($name, true);
}
/**
* drop an existing database
*
* @param string $name name of the database that should be dropped
* @return string
*/
public function dropDatabaseSql($name)
{
return array(
'SET FOREIGN_KEY_CHECKS = 0',
'DROP DATABASE ' . $this->conn->quoteIdentifier($name),
'SET FOREIGN_KEY_CHECKS = 1'
);
}
/**
* create a new table
*
* @param string $name Name of the database that should be created
* @param array $fields Associative array that contains the definition of each field of the new table
* The indexes of the array entries are the names of the fields of the table an
* the array entry values are associative arrays like those that are meant to be
* passed with the field definitions to get[Type]Declaration() functions.
* array(
* 'id' => array(
* 'type' => 'integer',
* 'unsigned' => 1
* 'notnull' => 1
* 'default' => 0
* ),
* 'name' => array(
* 'type' => 'text',
* 'length' => 12
* ),
* 'password' => array(
* 'type' => 'text',
* 'length' => 12
* )
* );
* @param array $options An associative array of table options:
* array(
* 'comment' => 'Foo',
* 'charset' => 'utf8',
* 'collate' => 'utf8_unicode_ci',
* 'type' => 'innodb',
* );
*
* @return void
*/
public function createTableSql($name, array $fields, array $options = array())
{
if ( ! $name)
throw new Doctrine_Export_Exception('no valid table name specified');
if (empty($fields)) {
throw new Doctrine_Export_Exception('no fields specified for table "'.$name.'"');
}
$queryFields = $this->getFieldDeclarationList($fields);
// build indexes for all foreign key fields (needed in MySQL!!)
if (isset($options['foreignKeys'])) {
foreach ($options['foreignKeys'] as $fk) {
$local = $fk['local'];
$found = false;
if (isset($options['indexes'])) {
foreach ($options['indexes'] as $definition) {
if (is_string($definition['fields'])) {
// Check if index already exists on the column
$found = ($local == $definition['fields']);
} else if (in_array($local, $definition['fields']) && count($definition['fields']) === 1) {
// Index already exists on the column
$found = true;
}
}
}
if (isset($options['primary']) && !empty($options['primary']) &&
in_array($local, $options['primary'])) {
// field is part of the PK and therefore already indexed
$found = true;
}
if ( ! $found) {
if (is_array($local)) {
foreach($local as $localidx) {
$options['indexes'][$localidx] = array('fields' => array($localidx => array()));
}
} else {
$options['indexes'][$local] = array('fields' => array($local => array()));
}
}
}
}
// add all indexes
if (isset($options['indexes']) && ! empty($options['indexes'])) {
foreach($options['indexes'] as $index => $definition) {
$queryFields .= ', ' . $this->getIndexDeclaration($index, $definition);
}
}
// attach all primary keys
if (isset($options['primary']) && ! empty($options['primary'])) {
$keyColumns = array_values($options['primary']);
$keyColumns = array_map(array($this->conn, 'quoteIdentifier'), $keyColumns);
$queryFields .= ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
}
$query = 'CREATE TABLE ' . $this->conn->quoteIdentifier($name, true) . ' (' . $queryFields . ')';
$optionStrings = array();
if (isset($options['comment'])) {
$optionStrings['comment'] = 'COMMENT = ' . $this->conn->quote($options['comment'], 'text');
}
if (isset($options['charset'])) {
$optionStrings['charset'] = 'DEFAULT CHARACTER SET ' . $options['charset'];
}
if (isset($options['collate'])) {
$optionStrings['collate'] = 'COLLATE ' . $options['collate'];
}
$type = false;
// get the type of the table
if (isset($options['type'])) {
$type = $options['type'];
} else {
$type = $this->conn->getAttribute(Doctrine_Core::ATTR_DEFAULT_TABLE_TYPE);
}
if ($type) {
$optionStrings[] = 'ENGINE = ' . $type;
}
if ( ! empty($optionStrings)) {
$query.= ' '.implode(' ', $optionStrings);
}
$sql[] = $query;
if (isset($options['foreignKeys'])) {
foreach ((array) $options['foreignKeys'] as $k => $definition) {
if (is_array($definition)) {
$sql[] = $this->createForeignKeySql($name, $definition);
}
}
}
return $sql;
}
/**
* Obtain DBMS specific SQL code portion needed to declare a generic type
* field to be used in statements like CREATE TABLE.
*
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
*
* length
* Integer value that determines the maximum length of the text
* field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
*
* default
* Text value to be used as default for this field.
*
* notnull
* Boolean flag that indicates whether this field is constrained
* to not be set to null.
* charset
* Text value with the default CHARACTER SET for this field.
* collation
* Text value with the default COLLATION for this field.
* unique
* unique constraint
* check
* column check constraint
*
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
*/
public function getDeclaration($name, array $field)
{
$default = $this->getDefaultFieldDeclaration($field);
$charset = (isset($field['charset']) && $field['charset']) ?
' ' . $this->getCharsetFieldDeclaration($field['charset']) : '';
$collation = (isset($field['collation']) && $field['collation']) ?
' ' . $this->getCollationFieldDeclaration($field['collation']) : '';
$notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : '';
$unique = (isset($field['unique']) && $field['unique']) ?
' ' . $this->getUniqueFieldDeclaration() : '';
$check = (isset($field['check']) && $field['check']) ?
' ' . $field['check'] : '';
$comment = (isset($field['comment']) && $field['comment']) ?
" COMMENT '" . $field['comment'] . "'" : '';
$method = 'get' . $field['type'] . 'Declaration';
try {
if (method_exists($this->conn->dataDict, $method)) {
return $this->conn->dataDict->$method($name, $field);
} else {
$dec = $this->conn->dataDict->getNativeDeclaration($field);
}
return $this->conn->quoteIdentifier($name, true)
. ' ' . $dec . $charset . $default . $notnull . $comment . $unique . $check . $collation;
} catch (Exception $e) {
throw new Doctrine_Exception('Around field ' . $name . ': ' . $e->getMessage() . "\n\n" . $e->getTraceAsString() . "\n\n");
}
}
/**
* alter an existing table
*
* @param string $name name of the table that is intended to be changed.
* @param array $changes associative array that contains the details of each type
* of change that is intended to be performed. The types of
* changes that are currently supported are defined as follows:
*
* name
*
* New name for the table.
*
* add
*
* Associative array with the names of fields to be added as
* indexes of the array. The value of each entry of the array
* should be set to another associative array with the properties
* of the fields to be added. The properties of the fields should
* be the same as defined by the Metabase parser.
*
*
* remove
*
* Associative array with the names of fields to be removed as indexes
* of the array. Currently the values assigned to each entry are ignored.
* An empty array should be used for future compatibility.
*
* rename
*
* Associative array with the names of fields to be renamed as indexes
* of the array. The value of each entry of the array should be set to
* another associative array with the entry named name with the new
* field name and the entry named Declaration that is expected to contain
* the portion of the field declaration already in DBMS specific SQL code
* as it is used in the CREATE TABLE statement.
*
* change
*
* Associative array with the names of the fields to be changed as indexes
* of the array. Keep in mind that if it is intended to change either the
* name of a field and any other properties, the change array entries
* should have the new names of the fields as array indexes.
*
* The value of each entry of the array should be set to another associative
* array with the properties of the fields to that are meant to be changed as
* array entries. These entries should be assigned to the new values of the
* respective properties. The properties of the fields should be the same
* as defined by the Metabase parser.
*
* Example
* array(
* 'name' => 'userlist',
* 'add' => array(
* 'quota' => array(
* 'type' => 'integer',
* 'unsigned' => 1
* )
* ),
* 'remove' => array(
* 'file_limit' => array(),
* 'time_limit' => array()
* ),
* 'change' => array(
* 'name' => array(
* 'length' => '20',
* 'definition' => array(
* 'type' => 'text',
* 'length' => 20,
* ),
* )
* ),
* 'rename' => array(
* 'sex' => array(
* 'name' => 'gender',
* 'definition' => array(
* 'type' => 'text',
* 'length' => 1,
* 'default' => 'M',
* ),
* )
* )
* )
*
* @param boolean $check indicates whether the function should just check if the DBMS driver
* can perform the requested table alterations if the value is true or
* actually perform them otherwise.
* @return boolean
*/
public function alterTableSql($name, array $changes, $check = false)
{
if ( ! $name) {
throw new Doctrine_Export_Exception('no valid table name specified');
}
foreach ($changes as $changeName => $change) {
switch ($changeName) {
case 'add':
case 'remove':
case 'change':
case 'rename':
case 'name':
break;
default:
throw new Doctrine_Export_Exception('change type "' . $changeName . '" not yet supported');
}
}
if ($check) {
return true;
}
$query = '';
if ( ! empty($changes['name'])) {
$change_name = $this->conn->quoteIdentifier($changes['name']);
$query .= 'RENAME TO ' . $change_name;
}
if ( ! empty($changes['add']) && is_array($changes['add'])) {
foreach ($changes['add'] as $fieldName => $field) {
if ($query) {
$query.= ', ';
}
$query.= 'ADD ' . $this->getDeclaration($fieldName, $field);
}
}
if ( ! empty($changes['remove']) && is_array($changes['remove'])) {
foreach ($changes['remove'] as $fieldName => $field) {
if ($query) {
$query .= ', ';
}
$fieldName = $this->conn->quoteIdentifier($fieldName);
$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;
}
$oldFieldName = $this->conn->quoteIdentifier($oldFieldName, true);
$query .= 'CHANGE ' . $oldFieldName . ' '
. $this->getDeclaration($fieldName, $field['definition']);
}
}
if ( ! empty($rename) && is_array($rename)) {
foreach ($rename as $renameName => $renamedField) {
if ($query) {
$query.= ', ';
}
$field = $changes['rename'][$renamedField];
$renamedField = $this->conn->quoteIdentifier($renamedField, true);
$query .= 'CHANGE ' . $renamedField . ' '
. $this->getDeclaration($field['name'], $field['definition']);
}
}
if ( ! $query) {
return false;
}
$name = $this->conn->quoteIdentifier($name, true);
return 'ALTER TABLE ' . $name . ' ' . $query;
}
/**
* create sequence
*
* @param string $sequenceName name of the sequence to be created
* @param string $start start value of the sequence; default is 1
* @param array $options An associative array of table options:
* array(
* 'comment' => 'Foo',
* 'charset' => 'utf8',
* 'collate' => 'utf8_unicode_ci',
* 'type' => 'innodb',
* );
* @return boolean
*/
public function createSequence($sequenceName, $start = 1, array $options = array())
{
$sequenceName = $this->conn->quoteIdentifier($sequenceName, true);
$seqcolName = $this->conn->quoteIdentifier($this->conn->getAttribute(Doctrine_Core::ATTR_SEQCOL_NAME), true);
$optionsStrings = array();
if (isset($options['comment']) && ! empty($options['comment'])) {
$optionsStrings['comment'] = 'COMMENT = ' . $this->conn->quote($options['comment'], 'string');
}
if (isset($options['charset']) && ! empty($options['charset'])) {
$optionsStrings['charset'] = 'DEFAULT CHARACTER SET ' . $options['charset'];
if (isset($options['collate'])) {
$optionsStrings['charset'] .= ' COLLATE ' . $options['collate'];
}
}
$type = false;
if (isset($options['type'])) {
$type = $options['type'];
} else {
$type = $this->conn->getAttribute(Doctrine_Core::ATTR_DEFAULT_TABLE_TYPE);
}
if ($type) {
$optionsStrings[] = 'ENGINE = ' . $type;
}
try {
$query = 'CREATE TABLE ' . $sequenceName
. ' (' . $seqcolName . ' BIGINT NOT NULL AUTO_INCREMENT, PRIMARY KEY ('
. $seqcolName . ')) ' . implode($optionsStrings, ' ');
$res = $this->conn->exec($query);
} catch(Doctrine_Connection_Exception $e) {
throw new Doctrine_Export_Exception('could not create sequence table');
}
if ($start == 1 && $res == 1)
return true;
$query = 'INSERT INTO ' . $sequenceName
. ' (' . $seqcolName . ') VALUES (' . ($start - 1) . ')';
$res = $this->conn->exec($query);
if ($res == 1)
return true;
// Handle error
try {
$result = $this->conn->exec('DROP TABLE ' . $sequenceName);
} catch(Doctrine_Connection_Exception $e) {
throw new Doctrine_Export_Exception('could not drop inconsistent sequence table');
}
}
/**
* Get the stucture of a field into an array
*
* @author Leoncx
* @param string $table name of the table on which the index is to be created
* @param string $name name of the index to be created
* @param array $definition associative array that defines properties of the index to be created.
* Currently, only one property named FIELDS is supported. This property
* is also an associative with the names of the index fields as array
* indexes. Each entry of this array is set to another type of associative
* array that specifies properties of the index that are specific to
* each field.
*
* Currently, only the sorting property is supported. It should be used
* to define the sorting direction of the index. It may be set to either
* ascending or descending.
*
* Not all DBMS support index sorting direction configuration. The DBMS
* drivers of those that do not support it ignore this property. Use the
* function supports() to determine whether the DBMS driver can manage indexes.
*
* Example
* array(
* 'fields' => array(
* 'user_name' => array(
* 'sorting' => 'ASC'
* 'length' => 10
* ),
* 'last_login' => array()
* )
* )
* @throws PDOException
* @return void
*/
public function createIndexSql($table, $name, array $definition)
{
$table = $table;
$table = $this->conn->quoteIdentifier($table, true);
$name = $this->conn->formatter->getIndexName($name);
$name = $this->conn->quoteIdentifier($name);
$type = '';
if (isset($definition['type'])) {
switch (strtolower($definition['type'])) {
case 'fulltext':
case 'unique':
$type = strtoupper($definition['type']) . ' ';
break;
default:
throw new Doctrine_Export_Exception(
'Unknown type ' . $definition['type'] . ' for index ' . $name . ' in table ' . $table
);
}
}
$query = 'CREATE ' . $type . 'INDEX ' . $name . ' ON ' . $table;
$query .= ' (' . $this->getIndexFieldDeclarationList($definition['fields']) . ')';
return $query;
}
/**
* getDefaultDeclaration
* Obtain DBMS specific SQL code portion needed to set a default value
* declaration to be used in statements like CREATE TABLE.
*
* @param array $field field definition array
* @return string DBMS specific SQL code portion needed to set a default value
*/
public function getDefaultFieldDeclaration($field)
{
$default = '';
if (isset($field['default']) && ( ! isset($field['length']) || $field['length'] <= 255)) {
if ($field['default'] === '') {
$field['default'] = empty($field['notnull'])
? null : $this->valid_default_values[$field['type']];
if ($field['default'] === ''
&& ($this->conn->getAttribute(Doctrine_Core::ATTR_PORTABILITY) & Doctrine_Core::PORTABILITY_EMPTY_TO_NULL)
) {
$field['default'] = ' ';
}
}
// Proposed patch:
if ($field['type'] == 'enum' && $this->conn->getAttribute(Doctrine_Core::ATTR_USE_NATIVE_ENUM)) {
$fieldType = 'varchar';
} else {
$fieldType = $field['type'];
}
$default = ' DEFAULT ' . (is_null($field['default'])
? 'NULL'
: $this->conn->quote($field['default'], $fieldType));
//$default = ' DEFAULT ' . $this->conn->quote($field['default'], $field['type']);
}
return $default;
}
/**
* Obtain DBMS specific SQL code portion needed to set an index
* declaration to be used in statements like CREATE TABLE.
*
* @param string $charset name of the index
* @param array $definition index definition
* @return string DBMS specific SQL code portion needed to set an index
*/
public function getIndexDeclaration($name, array $definition)
{
$name = $this->conn->formatter->getIndexName($name);
$type = '';
if (isset($definition['type'])) {
switch (strtolower($definition['type'])) {
case 'fulltext':
case 'unique':
$type = strtoupper($definition['type']) . ' ';
break;
default:
throw new Doctrine_Export_Exception(
'Unknown type ' . $definition['type'] . ' for index ' . $name
);
}
}
if ( ! isset($definition['fields'])) {
throw new Doctrine_Export_Exception('No columns given for index ' . $name);
}
if ( ! is_array($definition['fields'])) {
$definition['fields'] = array($definition['fields']);
}
$query = $type . 'INDEX ' . $this->conn->quoteIdentifier($name);
$query .= ' (' . $this->getIndexFieldDeclarationList($definition['fields']) . ')';
return $query;
}
/**
* getIndexFieldDeclarationList
* Obtain DBMS specific SQL code portion needed to set an index
* declaration to be used in statements like CREATE TABLE.
*
* @return string
*/
public function getIndexFieldDeclarationList(array $fields)
{
$declFields = array();
foreach ($fields as $fieldName => $field) {
$fieldString = $this->conn->quoteIdentifier($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 new Doctrine_Export_Exception('Unknown index sorting option given.');
}
}
} else {
$fieldString = $this->conn->quoteIdentifier($field);
}
$declFields[] = $fieldString;
}
return implode(', ', $declFields);
}
/**
* getAdvancedForeignKeyOptions
* Return the FOREIGN KEY query section dealing with non-standard options
* as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
*
* @param array $definition
* @return string
*/
public function getAdvancedForeignKeyOptions(array $definition)
{
$query = '';
if ( ! empty($definition['match'])) {
$query .= ' MATCH ' . $definition['match'];
}
if ( ! empty($definition['onUpdate'])) {
$query .= ' ON UPDATE ' . $this->getForeignKeyReferentialAction($definition['onUpdate']);
}
if ( ! empty($definition['onDelete'])) {
$query .= ' ON DELETE ' . $this->getForeignKeyReferentialAction($definition['onDelete']);
}
return $query;
}
/**
* drop existing index
*
* @param string $table name of table that should be used in method
* @param string $name name of the index to be dropped
* @return void
*/
public function dropIndexSql($table, $name)
{
$table = $this->conn->quoteIdentifier($table, true);
$name = $this->conn->quoteIdentifier($this->conn->formatter->getIndexName($name), true);
return 'DROP INDEX ' . $name . ' ON ' . $table;
}
/**
* dropTable
*
* @param string $table name of table that should be dropped from the database
* @throws PDOException
* @return void
*/
public function dropTableSql($table)
{
$table = $this->conn->quoteIdentifier($table, true);
return 'DROP TABLE ' . $table;
}
/**
* drop existing foreign key
*
* @param string $table name of table that should be used in method
* @param string $name name of the foreign key to be dropped
* @return void
*/
public function dropForeignKey($table, $name)
{
$table = $this->conn->quoteIdentifier($table);
$name = $this->conn->quoteIdentifier($name);
return $this->conn->exec('ALTER TABLE ' . $table . ' DROP FOREIGN KEY ' . $name);
}
}
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