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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\db;
/**
* ConstraintFinderInterface defines methods for getting a table constraint information.
*
* @author Sergey Makinen <sergey@makinen.ru>
* @since 2.0.14
*/
interface ConstraintFinderInterface
{
/**
* Obtains the primary key for the named table.
* @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
* @param bool $refresh whether to reload the information even if it is found in the cache.
* @return Constraint|null table primary key, `null` if the table has no primary key.
*/
public function getTablePrimaryKey($name, $refresh = false);
/**
* Returns primary keys for all tables in the database.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
* @param bool $refresh whether to fetch the latest available table schemas. If this is `false`,
* cached data may be returned if available.
* @return Constraint[] primary keys for all tables in the database.
* Each array element is an instance of [[Constraint]] or its child class.
*/
public function getSchemaPrimaryKeys($schema = '', $refresh = false);
/**
* Obtains the foreign keys information for the named table.
* @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
* @param bool $refresh whether to reload the information even if it is found in the cache.
* @return ForeignKeyConstraint[] table foreign keys.
*/
public function getTableForeignKeys($name, $refresh = false);
/**
* Returns foreign keys for all tables in the database.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
* @param bool $refresh whether to fetch the latest available table schemas. If this is false,
* cached data may be returned if available.
* @return ForeignKeyConstraint[][] foreign keys for all tables in the database.
* Each array element is an array of [[ForeignKeyConstraint]] or its child classes.
*/
public function getSchemaForeignKeys($schema = '', $refresh = false);
/**
* Obtains the indexes information for the named table.
* @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
* @param bool $refresh whether to reload the information even if it is found in the cache.
* @return IndexConstraint[] table indexes.
*/
public function getTableIndexes($name, $refresh = false);
/**
* Returns indexes for all tables in the database.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
* @param bool $refresh whether to fetch the latest available table schemas. If this is false,
* cached data may be returned if available.
* @return IndexConstraint[][] indexes for all tables in the database.
* Each array element is an array of [[IndexConstraint]] or its child classes.
*/
public function getSchemaIndexes($schema = '', $refresh = false);
/**
* Obtains the unique constraints information for the named table.
* @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
* @param bool $refresh whether to reload the information even if it is found in the cache.
* @return Constraint[] table unique constraints.
*/
public function getTableUniques($name, $refresh = false);
/**
* Returns unique constraints for all tables in the database.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
* @param bool $refresh whether to fetch the latest available table schemas. If this is false,
* cached data may be returned if available.
* @return Constraint[][] unique constraints for all tables in the database.
* Each array element is an array of [[Constraint]] or its child classes.
*/
public function getSchemaUniques($schema = '', $refresh = false);
/**
* Obtains the check constraints information for the named table.
* @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
* @param bool $refresh whether to reload the information even if it is found in the cache.
* @return CheckConstraint[] table check constraints.
*/
public function getTableChecks($name, $refresh = false);
/**
* Returns check constraints for all tables in the database.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
* @param bool $refresh whether to fetch the latest available table schemas. If this is false,
* cached data may be returned if available.
* @return CheckConstraint[][] check constraints for all tables in the database.
* Each array element is an array of [[CheckConstraint]] or its child classes.
*/
public function getSchemaChecks($schema = '', $refresh = false);
/**
* Obtains the default value constraints information for the named table.
* @param string $name table name. The table name may contain schema name if any. Do not quote the table name.
* @param bool $refresh whether to reload the information even if it is found in the cache.
* @return DefaultValueConstraint[] table default value constraints.
*/
public function getTableDefaultValues($name, $refresh = false);
/**
* Returns default value constraints for all tables in the database.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema name.
* @param bool $refresh whether to fetch the latest available table schemas. If this is false,
* cached data may be returned if available.
* @return DefaultValueConstraint[] default value constraints for all tables in the database.
* Each array element is an array of [[DefaultValueConstraint]] or its child classes.
*/
public function getSchemaDefaultValues($schema = '', $refresh = false);
}