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 | 
 
          
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