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<?php
/*
* $Id: Export.php 7653 2010-06-08 15:54:31Z 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.doctrine-project.org>.
*/
/**
* Doctrine_Export
*
* @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.doctrine-project.org
* @since 1.0
* @version $Revision: 7653 $
*/
class Doctrine_Export extends Doctrine_Connection_Module
{
protected $valid_default_values = array(
'text' => '',
'boolean' => true,
'integer' => 0,
'decimal' => 0.0,
'float' => 0.0,
'timestamp' => '1970-01-01 00:00:00',
'time' => '00:00:00',
'date' => '1970-01-01',
'clob' => '',
'blob' => '',
'string' => ''
);
/**
* drop an existing database
* (this method is implemented by the drivers)
*
* @param string $name name of the database that should be dropped
* @return void
*/
public function dropDatabase($database)
{
foreach ((array) $this->dropDatabaseSql($database) as $query) {
$this->conn->execute($query);
}
}
/**
* drop an existing database
* (this method is implemented by the drivers)
*
* @param string $name name of the database that should be dropped
* @return void
*/
public function dropDatabaseSql($database)
{
throw new Doctrine_Export_Exception('Drop database not supported by this driver.');
}
/**
* dropTableSql
* drop an existing table
*
* @param string $table name of table that should be dropped from the database
* @return string
*/
public function dropTableSql($table)
{
return 'DROP TABLE ' . $this->conn->quoteIdentifier($table);
}
/**
* dropTable
* drop an existing table
*
* @param string $table name of table that should be dropped from the database
* @return void
*/
public function dropTable($table)
{
$this->conn->execute($this->dropTableSql($table));
}
/**
* drop existing index
*
* @param string $table name of table that should be used in method
* @param string $name name of the index to be dropped
* @return void
*/
public function dropIndex($table, $name)
{
return $this->conn->exec($this->dropIndexSql($table, $name));
}
/**
* dropIndexSql
*
* @param string $table name of table that should be used in method
* @param string $name name of the index to be dropped
* @return string SQL that is used for dropping an index
*/
public function dropIndexSql($table, $name)
{
$name = $this->conn->quoteIdentifier($this->conn->formatter->getIndexName($name));
return 'DROP INDEX ' . $name;
}
/**
* 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);
$name = $this->conn->quoteIdentifier($name);
return $this->conn->exec('ALTER TABLE ' . $table . ' DROP CONSTRAINT ' . $name);
}
/**
* 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)
{
return $this->dropConstraint($table, $this->conn->formatter->getForeignKeyName($name));
}
/**
* dropSequenceSql
* drop existing sequence
* (this method is implemented by the drivers)
*
* @throws Doctrine_Connection_Exception if something fails at database level
* @param string $sequenceName name of the sequence to be dropped
* @return void
*/
public function dropSequence($sequenceName)
{
$this->conn->exec($this->dropSequenceSql($sequenceName));
}
/**
* dropSequenceSql
* drop existing sequence
*
* @throws Doctrine_Connection_Exception if something fails at database level
* @param string $sequenceName name of the sequence to be dropped
* @return void
*/
public function dropSequenceSql($sequenceName)
{
throw new Doctrine_Export_Exception('Drop sequence not supported by this driver.');
}
/**
* create a new database
* (this method is implemented by the drivers)
*
* @param string $name name of the database that should be created
* @return void
*/
public function createDatabase($database)
{
$this->conn->execute($this->createDatabaseSql($database));
}
/**
* create a new database
* (this method is implemented by the drivers)
*
* @param string $name name of the database that should be created
* @return string
*/
public function createDatabaseSql($database)
{
throw new Doctrine_Export_Exception('Create database not supported by this driver.');
}
/**
* 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 $options An associative array of table options:
*
* @return string
*/
public function createTableSql($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);
if (isset($options['primary']) && ! empty($options['primary'])) {
$primaryKeys = array_map(array($this->conn, 'quoteIdentifier'), array_values($options['primary']));
$queryFields .= ', PRIMARY KEY(' . implode(', ', $primaryKeys) . ')';
}
if (isset($options['indexes']) && ! empty($options['indexes'])) {
foreach($options['indexes'] as $index => $definition) {
$indexDeclaration = $this->getIndexDeclaration($index, $definition);
// append only created index declarations
if ( ! is_null($indexDeclaration)) {
$queryFields .= ', '.$indexDeclaration;
}
}
}
$query = 'CREATE TABLE ' . $this->conn->quoteIdentifier($name, true) . ' (' . $queryFields;
$check = $this->getCheckDeclaration($fields);
if ( ! empty($check)) {
$query .= ', ' . $check;
}
$query .= ')';
$sql[] = $query;
if (isset($options['foreignKeys'])) {
foreach ((array) $options['foreignKeys'] as $k => $definition) {
if (is_array($definition)) {
$sql[] = $this->createForeignKeySql($name, $definition);
}
}
}
return $sql;
}
/**
* 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
* @param array $options An associative array of table options:
* @see Doctrine_Export::createTableSql()
*
* @return void
*/
public function createTable($name, array $fields, array $options = array())
{
// Build array of the primary keys if any of the individual field definitions
// specify primary => true
$count = 0;
foreach ($fields as $fieldName => $field) {
if (isset($field['primary']) && $field['primary']) {
if ($count == 0) {
$options['primary'] = array();
}
$count++;
$options['primary'][] = $fieldName;
}
}
$sql = (array) $this->createTableSql($name, $fields, $options);
foreach ($sql as $query) {
$this->conn->execute($query);
}
}
/**
* create sequence
*
* @throws Doctrine_Connection_Exception if something fails at database level
* @param string $seqName name of the sequence to be created
* @param string $start start value of the sequence; default is 1
* @param array $options An associative array of table options:
* array(
* 'comment' => 'Foo',
* 'charset' => 'utf8',
* 'collate' => 'utf8_unicode_ci',
* );
* @return void
*/
public function createSequence($seqName, $start = 1, array $options = array())
{
return $this->conn->execute($this->createSequenceSql($seqName, $start = 1, $options));
}
/**
* return RDBMS specific create sequence statement
* (this method is implemented by the drivers)
*
* @throws Doctrine_Connection_Exception if something fails at database level
* @param string $seqName name of the sequence to be created
* @param string $start start value of the sequence; default is 1
* @param array $options An associative array of table options:
* array(
* 'comment' => 'Foo',
* 'charset' => 'utf8',
* 'collate' => 'utf8_unicode_ci',
* );
* @return string
*/
public function createSequenceSql($seqName, $start = 1, array $options = array())
{
throw new Doctrine_Export_Exception('Create sequence not supported by this driver.');
}
/**
* create a constraint on a table
*
* @param string $table name of the table on which the constraint is to be created
* @param string $name name of the constraint to be created
* @param array $definition associative array that defines properties of the constraint to be created.
* Currently, only one property named FIELDS is supported. This property
* is also an associative with the names of the constraint fields as array
* constraints. Each entry of this array is set to another type of associative
* array that specifies properties of the constraint that are specific to
* each field.
*
* Example
* array(
* 'fields' => array(
* 'user_name' => array(),
* 'last_login' => array()
* )
* )
* @return void
*/
public function createConstraint($table, $name, $definition)
{
$sql = $this->createConstraintSql($table, $name, $definition);
return $this->conn->exec($sql);
}
/**
* create a constraint on a table
*
* @param string $table name of the table on which the constraint is to be created
* @param string $name name of the constraint to be created
* @param array $definition associative array that defines properties of the constraint to be created.
* Currently, only one property named FIELDS is supported. This property
* is also an associative with the names of the constraint fields as array
* constraints. Each entry of this array is set to another type of associative
* array that specifies properties of the constraint that are specific to
* each field.
*
* Example
* array(
* 'fields' => array(
* 'user_name' => array(),
* 'last_login' => array()
* )
* )
* @return void
*/
public function createConstraintSql($table, $name, $definition)
{
$table = $this->conn->quoteIdentifier($table);
$name = $this->conn->quoteIdentifier($this->conn->formatter->getIndexName($name));
$query = 'ALTER TABLE ' . $table . ' ADD CONSTRAINT ' . $name;
if (isset($definition['primary']) && $definition['primary']) {
$query .= ' PRIMARY KEY';
} elseif (isset($definition['unique']) && $definition['unique']) {
$query .= ' UNIQUE';
}
$fields = array();
foreach (array_keys($definition['fields']) as $field) {
$fields[] = $this->conn->quoteIdentifier($field, true);
}
$query .= ' ('. implode(', ', $fields) . ')';
return $query;
}
/**
* Get the stucture of a field into an array
*
* @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 $definition associative array that defines properties of the index to be created.
* Currently, only one property named FIELDS is supported. This property
* is also an associative with the names of the index fields as array
* indexes. Each entry of this array is set to another type of associative
* array that specifies properties of the index that are specific to
* each field.
*
* Currently, only the sorting property is supported. It should be used
* to define the sorting direction of the index. It may be set to either
* ascending or descending.
*
* Not all DBMS support index sorting direction configuration. The DBMS
* drivers of those that do not support it ignore this property. Use the
* function supports() to determine whether the DBMS driver can manage indexes.
*
* Example
* array(
* 'fields' => array(
* 'user_name' => array(
* 'sorting' => 'ascending'
* ),
* 'last_login' => array()
* )
* )
* @return void
*/
public function createIndex($table, $name, array $definition)
{
return $this->conn->execute($this->createIndexSql($table, $name, $definition));
}
/**
* Get the stucture of a field into an array
*
* @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 $definition associative array that defines properties of the index to be created.
* @see Doctrine_Export::createIndex()
* @return string
*/
public function createIndexSql($table, $name, array $definition)
{
$table = $this->conn->quoteIdentifier($table);
$name = $this->conn->quoteIdentifier($name);
$type = '';
if (isset($definition['type'])) {
switch (strtolower($definition['type'])) {
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;
$fields = array();
foreach ($definition['fields'] as $field) {
$fields[] = $this->conn->quoteIdentifier($field);
}
$query .= ' (' . implode(', ', $fields) . ')';
return $query;
}
/**
* createForeignKeySql
*
* @param string $table name of the table on which the foreign key is to be created
* @param array $definition associative array that defines properties of the foreign key to be created.
* @return string
*/
public function createForeignKeySql($table, array $definition)
{
$table = $this->conn->quoteIdentifier($table);
$query = 'ALTER TABLE ' . $table . ' ADD ' . $this->getForeignKeyDeclaration($definition);
return $query;
}
/**
* createForeignKey
*
* @param string $table name of the table on which the foreign key is to be created
* @param array $definition associative array that defines properties of the foreign key to be created.
* @return string
*/
public function createForeignKey($table, array $definition)
{
$sql = $this->createForeignKeySql($table, $definition);
return $this->conn->execute($sql);
}
/**
* alter an existing table
* (this method is implemented by the drivers)
*
* @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 MDB2 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 MDB2 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 $check indicates whether the function should just check if the DBMS driver
* can perform the requested table alterations if the value is true or
* actually perform them otherwise.
* @return void
*/
public function alterTable($name, array $changes, $check = false)
{
$sql = $this->alterTableSql($name, $changes, $check);
if (is_string($sql) && $sql) {
$this->conn->execute($sql);
}
}
/**
* generates the sql for altering an existing table
* (this method is implemented by the drivers)
*
* @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 *
* @param boolean $check indicates whether the function should just check if the DBMS driver
* can perform the requested table alterations if the value is true or
* actually perform them otherwise.
* @see Doctrine_Export::alterTable()
* @return string
*/
public function alterTableSql($name, array $changes, $check = false)
{
throw new Doctrine_Export_Exception('Alter table not supported by this driver.');
}
/**
* Get declaration of a number of field in bulk
*
* @param array $fields a multidimensional associative array.
* The first dimension determines the field name, while the second
* dimension is keyed 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
*
* @return string
*/
public function getFieldDeclarationList(array $fields)
{
foreach ($fields as $fieldName => $field) {
$query = $this->getDeclaration($fieldName, $field);
$queryFields[] = $query;
}
return implode(', ', $queryFields);
}
/**
* 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 = $this->getNotNullFieldDeclaration($field);
$unique = (isset($field['unique']) && $field['unique']) ?
' ' . $this->getUniqueFieldDeclaration() : '';
$check = (isset($field['check']) && $field['check']) ?
' ' . $field['check'] : '';
$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 . $unique . $check . $collation;
} catch (Exception $e) {
throw new Doctrine_Exception('Around field ' . $name . ': ' . $e->getMessage());
}
}
/**
* 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 (array_key_exists('default', $field)) {
if ($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)) {
$field['default'] = null;
}
}
if ($field['type'] === 'boolean') {
$field['default'] = $this->conn->convertBooleans($field['default']);
}
$default = ' DEFAULT ' . (is_null($field['default'])
? 'NULL'
: $this->conn->quote($field['default'], $field['type']));
}
return $default;
}
/**
* getNotNullFieldDeclaration
* Obtain DBMS specific SQL code portion needed to set a NOT NULL
* 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 getNotNullFieldDeclaration(array $definition)
{
return (isset($definition['notnull']) && $definition['notnull']) ? ' NOT NULL' : '';
}
/**
* Obtain DBMS specific SQL code portion needed to set a CHECK constraint
* declaration to be used in statements like CREATE TABLE.
*
* @param array $definition check definition
* @return string DBMS specific SQL code portion needed to set a CHECK constraint
*/
public function getCheckDeclaration(array $definition)
{
$constraints = array();
foreach ($definition as $field => $def) {
if (is_string($def)) {
$constraints[] = 'CHECK (' . $def . ')';
} else {
if (isset($def['min'])) {
$constraints[] = 'CHECK (' . $field . ' >= ' . $def['min'] . ')';
}
if (isset($def['max'])) {
$constraints[] = 'CHECK (' . $field . ' <= ' . $def['max'] . ')';
}
}
}
return implode(', ', $constraints);
}
/**
* Obtain DBMS specific SQL code portion needed to set an index
* declaration to be used in statements like CREATE TABLE.
*
* @param string $name 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 = $this->conn->quoteIdentifier($name);
$type = '';
if (isset($definition['type'])) {
if (strtolower($definition['type']) == 'unique') {
$type = strtoupper($definition['type']) . ' ';
} else {
throw new Doctrine_Export_Exception(
'Unknown type ' . $definition['type'] . ' for index ' . $name
);
}
}
if ( ! isset($definition['fields']) || ! is_array($definition['fields'])) {
throw new Doctrine_Export_Exception('No columns given for index ' . $name);
}
$query = $type . 'INDEX ' . $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)
{
$ret = array();
foreach ($fields as $field => $definition) {
if (is_array($definition)) {
$ret[] = $this->conn->quoteIdentifier($field);
} else {
$ret[] = $this->conn->quoteIdentifier($definition);
}
}
return implode(', ', $ret);
}
/**
* A method to return the required SQL string that fits between CREATE ... TABLE
* to create the table as a temporary table.
*
* Should be overridden in driver classes to return the correct string for the
* specific database type.
*
* The default is to return the string "TEMPORARY" - this will result in a
* SQL error for any database that does not support temporary tables, or that
* requires a different SQL command from "CREATE TEMPORARY TABLE".
*
* @return string The string required to be placed between "CREATE" and "TABLE"
* to generate a temporary table, if possible.
*/
public function getTemporaryTableQuery()
{
return 'TEMPORARY';
}
/**
* getForeignKeyDeclaration
* Obtain DBMS specific SQL code portion needed to set the FOREIGN KEY constraint
* of a field declaration to be used in statements like CREATE TABLE.
*
* @param array $definition an associative array with the following structure:
* name optional constraint name
*
* local the local field(s)
*
* foreign the foreign reference field(s)
*
* foreignTable the name of the foreign table
*
* onDelete referential delete action
*
* onUpdate referential update action
*
* deferred deferred constraint checking
*
* The onDelete and onUpdate keys accept the following values:
*
* CASCADE: Delete or update the row from the parent table and automatically delete or
* update the matching rows in the child table. Both ON DELETE CASCADE and ON UPDATE CASCADE are supported.
* Between two tables, you should not define several ON UPDATE CASCADE clauses that act on the same column
* in the parent table or in the child table.
*
* SET NULL: Delete or update the row from the parent table and set the foreign key column or columns in the
* child table to NULL. This is valid only if the foreign key columns do not have the NOT NULL qualifier
* specified. Both ON DELETE SET NULL and ON UPDATE SET NULL clauses are supported.
*
* NO ACTION: In standard SQL, NO ACTION means no action in the sense that an attempt to delete or update a primary
* key value is not allowed to proceed if there is a related foreign key value in the referenced table.
*
* RESTRICT: Rejects the delete or update operation for the parent table. NO ACTION and RESTRICT are the same as
* omitting the ON DELETE or ON UPDATE clause.
*
* SET DEFAULT
*
* @return string DBMS specific SQL code portion needed to set the FOREIGN KEY constraint
* of a field declaration.
*/
public function getForeignKeyDeclaration(array $definition)
{
$sql = $this->getForeignKeyBaseDeclaration($definition);
$sql .= $this->getAdvancedForeignKeyOptions($definition);
return $sql;
}
/**
* getAdvancedForeignKeyOptions
* Return the FOREIGN KEY query section dealing with non-standard options
* as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
*
* @param array $definition foreign key definition
* @return string
*/
public function getAdvancedForeignKeyOptions(array $definition)
{
$query = '';
if ( ! empty($definition['onUpdate'])) {
$query .= ' ON UPDATE ' . $this->getForeignKeyReferentialAction($definition['onUpdate']);
}
if ( ! empty($definition['onDelete'])) {
$query .= ' ON DELETE ' . $this->getForeignKeyReferentialAction($definition['onDelete']);
}
return $query;
}
/**
* getForeignKeyReferentialAction
*
* returns given referential action in uppercase if valid, otherwise throws
* an exception
*
* @throws Doctrine_Exception_Exception if unknown referential action given
* @param string $action foreign key referential action
* @param string foreign key referential action in uppercase
*/
public function getForeignKeyReferentialAction($action)
{
$upper = strtoupper($action);
switch ($upper) {
case 'CASCADE':
case 'SET NULL':
case 'NO ACTION':
case 'RESTRICT':
case 'SET DEFAULT':
return $upper;
break;
default:
throw new Doctrine_Export_Exception('Unknown foreign key referential action \'' . $upper . '\' given.');
}
}
/**
* getForeignKeyBaseDeclaration
* Obtain DBMS specific SQL code portion needed to set the FOREIGN KEY constraint
* of a field declaration to be used in statements like CREATE TABLE.
*
* @param array $definition
* @return string
*/
public function getForeignKeyBaseDeclaration(array $definition)
{
$sql = '';
if (isset($definition['name'])) {
$sql .= 'CONSTRAINT ' . $this->conn->quoteIdentifier($this->conn->formatter->getForeignKeyName($definition['name'])) . ' ';
}
$sql .= 'FOREIGN KEY (';
if ( ! isset($definition['local'])) {
throw new Doctrine_Export_Exception('Local reference field missing from definition.');
}
if ( ! isset($definition['foreign'])) {
throw new Doctrine_Export_Exception('Foreign reference field missing from definition.');
}
if ( ! isset($definition['foreignTable'])) {
throw new Doctrine_Export_Exception('Foreign reference table missing from definition.');
}
if ( ! is_array($definition['local'])) {
$definition['local'] = array($definition['local']);
}
if ( ! is_array($definition['foreign'])) {
$definition['foreign'] = array($definition['foreign']);
}
$sql .= implode(', ', array_map(array($this->conn, 'quoteIdentifier'), $definition['local']))
. ') REFERENCES '
. $this->conn->quoteIdentifier($definition['foreignTable']) . '('
. implode(', ', array_map(array($this->conn, 'quoteIdentifier'), $definition['foreign'])) . ')';
return $sql;
}
/**
* Obtain DBMS specific SQL code portion needed to set the UNIQUE constraint
* of a field declaration to be used in statements like CREATE TABLE.
*
* @return string DBMS specific SQL code portion needed to set the UNIQUE constraint
* of a field declaration.
*/
public function getUniqueFieldDeclaration()
{
return 'UNIQUE';
}
/**
* Obtain DBMS specific SQL code portion needed to set the CHARACTER SET
* of a field declaration to be used in statements like CREATE TABLE.
*
* @param string $charset name of the charset
* @return string DBMS specific SQL code portion needed to set the CHARACTER SET
* of a field declaration.
*/
public function getCharsetFieldDeclaration($charset)
{
return '';
}
/**
* Obtain DBMS specific SQL code portion needed to set the COLLATION
* of a field declaration to be used in statements like CREATE TABLE.
*
* @param string $collation name of the collation
* @return string DBMS specific SQL code portion needed to set the COLLATION
* of a field declaration.
*/
public function getCollationFieldDeclaration($collation)
{
return '';
}
/**
* exportSchema
* method for exporting Doctrine_Record classes to a schema
*
* if the directory parameter is given this method first iterates
* recursively trhough the given directory in order to find any model classes
*
* Then it iterates through all declared classes and creates tables for the ones
* that extend Doctrine_Record and are not abstract classes
*
* @throws Doctrine_Connection_Exception if some error other than Doctrine_Core::ERR_ALREADY_EXISTS
* occurred during the create table operation
* @param string $directory optional directory parameter
* @return void
*/
public function exportSchema($directory = null)
{
if ($directory !== null) {
$models = Doctrine_Core::filterInvalidModels(Doctrine_Core::loadModels($directory));
} else {
$models = Doctrine_Core::getLoadedModels();
}
$this->exportClasses($models);
}
public function exportSortedClassesSql($classes, $groupByConnection = true)
{
$connections = array();
foreach ($classes as $class) {
$connection = Doctrine_Manager::getInstance()->getConnectionForComponent($class);
$connectionName = $connection->getName();
if ( ! isset($connections[$connectionName])) {
$connections[$connectionName] = array(
'create_tables' => array(),
'create_sequences' => array(),
'create_indexes' => array(),
'alters' => array(),
'create_triggers' => array(),
);
}
$sql = $connection->export->exportClassesSql(array($class));
// Build array of all the creates
// We need these to happen first
foreach ($sql as $key => $query) {
// If create table statement
if (substr($query, 0, strlen('CREATE TABLE')) == 'CREATE TABLE') {
$connections[$connectionName]['create_tables'][] = $query;
unset($sql[$key]);
continue;
}
// If create sequence statement
if (substr($query, 0, strlen('CREATE SEQUENCE')) == 'CREATE SEQUENCE') {
$connections[$connectionName]['create_sequences'][] = $query;
unset($sql[$key]);
continue;
}
// If create index statement
if (preg_grep("/CREATE ([^ ]* )?INDEX/", array($query))) {
$connections[$connectionName]['create_indexes'][] = $query;
unset($sql[$key]);
continue;
}
// If alter table statement or oracle anonymous block enclosing alter
if (substr($query, 0, strlen('ALTER TABLE')) == 'ALTER TABLE'
|| substr($query, 0, strlen('DECLARE')) == 'DECLARE') {
$connections[$connectionName]['alters'][] = $query;
unset($sql[$key]);
continue;
}
// If create trgger statement
if (substr($query, 0, strlen('CREATE TRIGGER')) == 'CREATE TRIGGER') {
$connections[$connectionName]['create_triggers'][] = $query;
unset($sql[$key]);
continue;
}
// If comment statement
if (substr($query, 0, strlen('COMMENT ON')) == 'COMMENT ON') {
$connections[$connectionName]['comments'][] = $query;
unset($sql[$key]);
continue;
}
}
}
// Loop over all the sql again to merge everything together so it is in the correct order
$build = array();
foreach ($connections as $connectionName => $sql) {
$build[$connectionName] = array_unique(array_merge($sql['create_tables'], $sql['create_sequences'], $sql['create_indexes'], $sql['alters'], $sql['create_triggers']));
}
if ( ! $groupByConnection) {
$new = array();
foreach($build as $connectionname => $sql) {
$new = array_unique(array_merge($new, $sql));
}
$build = $new;
}
return $build;
}
/**
* exportClasses
* method for exporting Doctrine_Record classes to a schema
*
* FIXME: This function has ugly hacks in it to make sure sql is inserted in the correct order.
*
* @throws Doctrine_Connection_Exception if some error other than Doctrine_Core::ERR_ALREADY_EXISTS
* occurred during the create table operation
* @param array $classes
* @return void
*/
public function exportClasses(array $classes)
{
$queries = $this->exportSortedClassesSql($classes);
foreach ($queries as $connectionName => $sql) {
$connection = Doctrine_Manager::getInstance()->getConnection($connectionName);
$connection->beginTransaction();
foreach ($sql as $query) {
try {
$connection->exec($query);
} catch (Doctrine_Connection_Exception $e) {
// we only want to silence table already exists errors
if ($e->getPortableCode() !== Doctrine_Core::ERR_ALREADY_EXISTS) {
$connection->rollback();
throw new Doctrine_Export_Exception($e->getMessage() . '. Failing Query: ' . $query);
}
}
}
$connection->commit();
}
}
/**
* exportClassesSql
* method for exporting Doctrine_Record classes to a schema
*
* @throws Doctrine_Connection_Exception if some error other than Doctrine_Core::ERR_ALREADY_EXISTS
* occurred during the create table operation
* @param array $classes
* @return void
*/
public function exportClassesSql(array $classes)
{
$models = Doctrine_Core::filterInvalidModels($classes);
$sql = array();
foreach ($models as $name) {
$record = new $name();
$table = $record->getTable();
$parents = $table->getOption('joinedParents');
foreach ($parents as $parent) {
$data = $table->getConnection()->getTable($parent)->getExportableFormat();
$query = $this->conn->export->createTableSql($data['tableName'], $data['columns'], $data['options']);
$sql = array_merge($sql, (array) $query);
}
// Don't export the tables with attribute EXPORT_NONE'
if ($table->getAttribute(Doctrine_Core::ATTR_EXPORT) === Doctrine_Core::EXPORT_NONE) {
continue;
}
$data = $table->getExportableFormat();
$query = $this->conn->export->createTableSql($data['tableName'], $data['columns'], $data['options']);
if (is_array($query)) {
$sql = array_merge($sql, $query);
} else {
$sql[] = $query;
}
if ($table->getAttribute(Doctrine_Core::ATTR_EXPORT) & Doctrine_Core::EXPORT_PLUGINS) {
$sql = array_merge($sql, $this->exportGeneratorsSql($table));
}
// DC-474: Remove dummy $record from repository to not pollute it during export
$table->getRepository()->evict($record->getOid());
unset($record);
}
$sql = array_unique($sql);
rsort($sql);
return $sql;
}
/**
* fetches all generators recursively for given table
*
* @param Doctrine_Table $table table object to retrieve the generators from
* @return array an array of Doctrine_Record_Generator objects
*/
public function getAllGenerators(Doctrine_Table $table)
{
$generators = array();
foreach ($table->getGenerators() as $name => $generator) {
if ($generator === null) {
continue;
}
$generators[] = $generator;
$generatorTable = $generator->getTable();
if ($generatorTable instanceof Doctrine_Table) {
$generators = array_merge($generators, $this->getAllGenerators($generatorTable));
}
}
return $generators;
}
/**
* exportGeneratorsSql
* exports plugin tables for given table
*
* @param Doctrine_Table $table the table in which the generators belong to
* @return array an array of sql strings
*/
public function exportGeneratorsSql(Doctrine_Table $table)
{
$sql = array();
foreach ($this->getAllGenerators($table) as $name => $generator) {
$table = $generator->getTable();
// Make sure plugin has a valid table
if ($table instanceof Doctrine_Table) {
$data = $table->getExportableFormat();
$query = $this->conn->export->createTableSql($data['tableName'], $data['columns'], $data['options']);
$sql = array_merge($sql, (array) $query);
}
}
return $sql;
}
/**
* exportSql
* returns the sql for exporting Doctrine_Record classes to a schema
*
* if the directory parameter is given this method first iterates
* recursively trhough the given directory in order to find any model classes
*
* Then it iterates through all declared classes and creates tables for the ones
* that extend Doctrine_Record and are not abstract classes
*
* @throws Doctrine_Connection_Exception if some error other than Doctrine_Core::ERR_ALREADY_EXISTS
* occurred during the create table operation
* @param string $directory optional directory parameter
* @return void
*/
public function exportSql($directory = null)
{
if ($directory !== null) {
$models = Doctrine_Core::filterInvalidModels(Doctrine_Core::loadModels($directory));
} else {
$models = Doctrine_Core::getLoadedModels();
}
return $this->exportSortedClassesSql($models, false);
}
/**
* exportTable
* exports given table into database based on column and option definitions
*
* @throws Doctrine_Connection_Exception if some error other than Doctrine_Core::ERR_ALREADY_EXISTS
* occurred during the create table operation
* @return boolean whether or not the export operation was successful
* false if table already existed in the database
*/
public function exportTable(Doctrine_Table $table)
{
try {
$data = $table->getExportableFormat();
$this->conn->export->createTable($data['tableName'], $data['columns'], $data['options']);
} catch(Doctrine_Connection_Exception $e) {
// we only want to silence table already exists errors
if ($e->getPortableCode() !== Doctrine_Core::ERR_ALREADY_EXISTS) {
throw $e;
}
}
}
}
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