class Schema

MySQL implementation of \Drupal\Core\Database\Schema.

Hierarchy

• class \Drupal\Core\Database\Schema implements PlaceholderInterface
  • class \Drupal\Core\Database\Driver\mysql\Schema

Related topics

Schema API

API to handle database schemas.

File

core/lib/Drupal/Core/Database/Driver/mysql/Schema.php, line 20

Namespace

Drupal\Core\Database\Driver\mysql

Members

Name	Modifiers	Type	Description
Schema::$connection	protected	property	The database connection.
Schema::$defaultSchema	protected	property	Definition of prefixInfo array structure.
Schema::$mysqlStringTypes	protected	property	List of MySQL string types.
Schema::$placeholder	protected	property	The placeholder counter.
Schema::$uniqueIdentifier	protected	property	A unique identifier for this query object.
Schema::addField	public	function	Add a new field to a table. Overrides Schema::addField
Schema::addIndex	public	function	Add an index. Overrides Schema::addIndex
Schema::addPrimaryKey	public	function	Add a primary key. Overrides Schema::addPrimaryKey
Schema::addUniqueKey	public	function	Add a unique key. Overrides Schema::addUniqueKey
Schema::buildTableNameCondition	protected	function	Build a condition to match a table name against a standard information_schema. Overrides Schema::buildTableNameCondition
Schema::changeField	public	function	Change a field definition. Overrides Schema::changeField
Schema::COMMENT_MAX_COLUMN		constant	Maximum length of a column comment in MySQL.
Schema::COMMENT_MAX_TABLE		constant	Maximum length of a table comment in MySQL.
Schema::createFieldSql	protected	function	Create an SQL string for a field to be used in table creation or alteration.
Schema::createKeySql	protected	function
Schema::createKeysSql	protected	function
Schema::createTable	public	function	Create a new table from a Drupal table definition.
Schema::createTableSql	protected	function	Generate SQL to create a new table from a Drupal schema definition.
Schema::dropField	public	function	Drop a field. Overrides Schema::dropField
Schema::dropIndex	public	function	Drop an index. Overrides Schema::dropIndex
Schema::dropPrimaryKey	public	function	Drop the primary key. Overrides Schema::dropPrimaryKey
Schema::dropTable	public	function	Drop a table. Overrides Schema::dropTable
Schema::dropUniqueKey	public	function	Drop a unique key. Overrides Schema::dropUniqueKey
Schema::escapeDefaultValue	protected	function	Return an escaped version of its parameter to be used as a default value on a column.
Schema::fieldExists	public	function	Check if a column exists in the given table. Overrides Schema::fieldExists
Schema::fieldNames	public	function	Return an array of field names from an array of key/index column specifiers.
Schema::fieldSetDefault	public	function	Set the default value for a field. Overrides Schema::fieldSetDefault
Schema::fieldSetNoDefault	public	function	Set a field to have no default value. Overrides Schema::fieldSetNoDefault
Schema::findTables	public	function	Finds all tables that are like the specified base table name.
Schema::getComment	public	function	Retrieve a table or column comment.
Schema::getFieldTypeMap	public	function	Returns a mapping of Drupal schema field names to DB-native field types. Overrides Schema::getFieldTypeMap
Schema::getNormalizedIndexes	protected	function	Gets normalized indexes from a table specification.
Schema::getPrefixInfo	protected	function	Get information about the table and database name from the prefix. Overrides Schema::getPrefixInfo
Schema::indexExists	public	function	Checks if an index exists in the given table. Overrides Schema::indexExists
Schema::nextPlaceholder	public	function	Returns the next placeholder ID for the query. Overrides PlaceholderInterface::nextPlaceholder
Schema::prefixNonTable		function	Create names for indexes, primary keys and constraints.
Schema::prepareComment	public	function	Prepare a table or column comment for database query. Overrides Schema::prepareComment
Schema::processField	protected	function	Set database-engine specific properties for a field.
Schema::renameTable	public	function	Rename a table. Overrides Schema::renameTable
Schema::shortenIndex	protected	function	Helper function for normalizeIndexes().
Schema::tableExists	public	function	Check if a table exists. Overrides Schema::tableExists
Schema::uniqueIdentifier	public	function	Returns a unique identifier for this object. Overrides PlaceholderInterface::uniqueIdentifier
Schema::__clone	public	function	Implements the magic __clone function.
Schema::__construct	public	function