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class Schema

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

Hierarchy

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

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Licensed under the GNU General Public License, version 2 and later.
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Database!Driver!mysql!Schema.php/class/Schema/8.1.x