Connection

Base Database API class.

This class provides a Drupal-specific extension of the PDO database abstraction class in PHP. Every database driver implementation must provide a concrete implementation of it to support special handling required by that database.

Hierarchy

class \Drupal\Core\Database\Connection

File

core/lib/Drupal/Core/Database/Connection.php, line 15

Namespace

Drupal\Core\Database

Members

Name	Modifiers	Type	Description
Connection::$connection	protected	property	The actual PDO connection.
Connection::$connectionOptions	protected	property	The connection information for this connection object.
Connection::$driverClasses	protected	property	Index of what driver-specific class to use for various operations.
Connection::$key	protected	property	The key representing this connection.
Connection::$logger	protected	property	The current database logging object for this connection.
Connection::$prefixes	protected	property	The prefixes used by this database connection.
Connection::$prefixReplace	protected	property	List of replacement values for use in prefixTables().
Connection::$prefixSearch	protected	property	List of search values for use in prefixTables().
Connection::$schema	protected	property	The schema object for this connection.
Connection::$statementClass	protected	property	The name of the Statement class for this connection.
Connection::$target	protected	property	The database target this connection is for.
Connection::$temporaryNameIndex	protected	property	An index used to generate unique temporary table names.
Connection::$transactionalDDLSupport	protected	property	Whether this database connection supports transactional DDL.
Connection::$transactionLayers	protected	property	Tracks the number of "layers" of transactions currently active.
Connection::$transactionSupport	protected	property	Whether this database connection supports transactions.
Connection::$unprefixedTablesMap	protected	property	List of un-prefixed table names, keyed by prefixed table names.
Connection::clientVersion	public	function	Returns the version of the database client.
Connection::commit	public	function	Throws an exception to deny direct access to transaction commits.
Connection::createDatabase	abstract public	function	Creates a database.
Connection::databaseType	abstract public	function	Returns the name of the PDO driver for this connection.
Connection::defaultOptions	protected	function	Returns the default query options for any given query.
Connection::delete	public	function	Prepares and returns a DELETE query object.
Connection::destroy	public	function	Destroys this Connection object.
Connection::driver	abstract public	function	Returns the type of database driver.
Connection::escapeAlias	public	function	Escapes an alias name string.
Connection::escapeDatabase	public	function	Escapes a database name string.
Connection::escapeField	public	function	Escapes a field name string.
Connection::escapeLike	public	function	Escapes characters that work as wildcard characters in a LIKE pattern.
Connection::escapeTable	public	function	Escapes a table name string.
Connection::expandArguments	protected	function	Expands out shorthand placeholders.
Connection::filterComment	protected	function	Sanitize a query comment string.
Connection::generateTemporaryTableName	protected	function	Generates a temporary table name.
Connection::getConnectionOptions	public	function	Returns the connection information for this connection object.
Connection::getDriverClass	public	function	Gets the driver-specific override class if any for the specified class.
Connection::getFullQualifiedTableName	public	function	Get a fully qualified table name.
Connection::getKey	public	function	Returns the key this connection is associated with.
Connection::getLogger	public	function	Gets the current logging object for this connection.
Connection::getTarget	public	function	Returns the target this connection is associated with.
Connection::getUnprefixedTablesMap	public	function	Gets a list of individually prefixed table names.
Connection::handleQueryException	protected	function	Wraps and re-throws any PDO exception thrown by static::query().
Connection::insert	public	function	Prepares and returns an INSERT query object.
Connection::inTransaction	public	function	Determines if there is an active transaction open.
Connection::makeComment	public	function	Flatten an array of query comments into a single comment string.
Connection::makeSequenceName	public	function	Creates the appropriate sequence name for a given table and serial field.
Connection::mapConditionOperator	abstract public	function	Gets any special processing requirements for the condition operator.
Connection::merge	public	function	Prepares and returns a MERGE query object.
Connection::nextId	abstract public	function	Retrieves an unique ID from a given sequence.
Connection::open	public static	function	Opens a PDO connection.
Connection::popCommittableTransactions	protected	function	Internal function: commit all the transaction layers that can commit.
Connection::popTransaction	public	function	Decreases the depth of transaction nesting.
Connection::prefixTables	public	function	Appends a database prefix to all tables in a query.
Connection::prepare	public	function	Prepares a statement for execution and returns a statement object
Connection::prepareQuery	public	function	Prepares a query string and returns the prepared statement.
Connection::pushTransaction	public	function	Increases the depth of transaction nesting.
Connection::query	public	function	Executes a query string against the database.
Connection::queryRange	abstract public	function	Runs a limited-range query on this database object.
Connection::queryTemporary	abstract	function	Runs a SELECT query and stores its results in a temporary table.
Connection::quote	public	function	Quotes a string for use in a query.
Connection::rollback	public	function	Rolls back the transaction entirely or to a named savepoint.
Connection::schema	public	function	Returns a DatabaseSchema object for manipulating the schema.
Connection::select	public	function	Prepares and returns a SELECT query object.
Connection::setKey	public	function	Tells this connection object what its key is.
Connection::setLogger	public	function	Associates a logging object with this connection.
Connection::setPrefix	protected	function	Set the list of prefixes used by this database connection.
Connection::setTarget	public	function	Tells this connection object what its target value is.
Connection::startTransaction	public	function	Returns a new DatabaseTransaction object on this connection.
Connection::supportsTransactionalDDL	public	function	Determines if this driver supports transactional DDL.
Connection::supportsTransactions	public	function	Determines if this driver supports transactions.
Connection::tablePrefix	public	function	Find the prefix for a table.
Connection::transactionDepth	public	function	Determines the current transaction depth.
Connection::truncate	public	function	Prepares and returns a TRUNCATE query object.
Connection::update	public	function	Prepares and returns an UPDATE query object.
Connection::upsert	public	function	Prepares and returns an UPSERT query object.
Connection::version	public	function	Returns the version of the database server.
Connection::__construct	public	function	Constructs a Connection object.
Connection::__sleep	public	function	Prevents the database connection from being serialized.

Links:

https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Database%21Connection.php/class/Connection/8.2.x

doc_Drupal

2016-10-29 08:55:38

Comments

Connection

Hierarchy

See also

File

Namespace

Members