class Schema

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

Hierarchy

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

Related topics

Schema API

API to handle database schemas.

File

core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php, line 18

Namespace

Drupal\Core\Database\Driver\pgsql

Members

Name	Modifiers	Type	Description
Schema::$connection	protected	property	The database connection.
Schema::$defaultSchema	protected	property	Definition of prefixInfo array structure.
Schema::$maxIdentifierLength	protected	property	The maximum allowed length for index, primary key and constraint names.
Schema::$placeholder	protected	property	The placeholder counter.
Schema::$tableInformation	protected	property	A cache of information about blob columns and sequences of tables.
Schema::$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		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.
Schema::changeField	public	function	Change a field definition. Overrides Schema::changeField
Schema::constraintExists	public	function	Helper function: check if a constraint (PK, FK, UK) exists.
Schema::createFieldSql	protected	function	Create an SQL string for a field to be used in table creation or alteration.
Schema::createPrimaryKeySql	protected	function	Create the SQL expression for primary keys.
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::ensureIdentifiersLength	protected	function	Make sure to limit identifiers according to PostgreSQL compiled in length.
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.
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		function	This maps a generic data type in combination with its data size to the engine-specific data type. Overrides Schema::getFieldTypeMap
Schema::getPrefixInfo	protected	function	Get information about the table name and schema from the prefix.
Schema::hashBase64	protected	function	Calculates a base-64 encoded, PostgreSQL-safe sha-256 hash per PostgreSQL documentation: 4.1. Lexical Structure.
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.
Schema::processField	protected	function	Set database-engine specific properties for a field.
Schema::queryFieldInformation	public	function	Fetch the list of CHECK constraints used on a field.
Schema::queryTableInformation	public	function	Fetch the list of blobs and sequences used on a table.
Schema::renameTable		function	Rename a table. Overrides Schema::renameTable
Schema::resetTableInformation	protected	function	Resets information about table blobs, sequences and serial fields.
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::_createIndexSql	protected	function
Schema::_createKeys	protected	function
Schema::_createKeySql	protected	function
Schema::__clone	public	function	Implements the magic __clone function.
Schema::__construct	public	function