/Drupal 8

class Connection

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


Related topics

Database abstraction layer
Allow the use of different database servers using the same code base.


core/lib/Drupal/Core/Database/Driver/mysql/Connection.php, line 22




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::$logger protected property The current database logging object for this connection.
Connection::$needsCleanup protected property Flag to indicate if the cleanup function in __destruct() should run.
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 public function Overrides \Drupal\Core\Database\Connection::createDatabase(). Overrides Connection::createDatabase
Connection::databaseType public function Returns the name of the PDO driver for this connection. Overrides Connection::databaseType
Connection::DATABASE_NOT_FOUND constant Error code for "Unknown database" error.
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 public function Returns the type of database driver. Overrides Connection::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 public function Gets any special processing requirements for the condition operator. Overrides Connection::mapConditionOperator
Connection::merge public function Prepares and returns a MERGE query object.
Connection::MIN_MAX_ALLOWED_PACKET constant The minimal possible value for the max_allowed_packet setting of MySQL.
Connection::nextId public function Retrieves an unique ID from a given sequence. Overrides Connection::nextId
Connection::nextIdDelete public function
Connection::open public static function Opens a PDO connection. Overrides Connection::open
Connection::popCommittableTransactions protected function Overridden to work around issues to MySQL not supporting transactional DDL. Overrides Connection::popCommittableTransactions
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. Overrides Connection::query
Connection::queryRange public function Runs a limited-range query on this database object. Overrides Connection::queryRange
Connection::queryTemporary public function Runs a SELECT query and stores its results in a temporary table. Overrides Connection::queryTemporary
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::serialize public function
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::SQLSTATE_SYNTAX_ERROR constant SQLSTATE error code for "Syntax error or access rule violation".
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::UNKNOWN_CHARSET constant Driver-specific error code for "Unknown character set" error.
Connection::UNSUPPORTED_CHARSET constant Error code for "Can't initialize character set" error.
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. Overrides Connection::__construct
Connection::__destruct public function
Connection::__sleep public function Prevents the database connection from being serialized.

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