Provides a base implementation for Database Schema.
Hierarchy
- class \Drupal\Core\Database\Schema implements PlaceholderInterface
File
- core/lib/Drupal/Core/Database/Schema.php, line 11
Namespace
Drupal\Core\Database
Members
| Name | Modifiers | Type | Description |
|---|---|---|---|
| Schema::$connection | protected | property | The database connection. |
| Schema::$defaultSchema | protected | property | Definition of prefixInfo array structure. |
| Schema::$placeholder | protected | property | The placeholder counter. |
| Schema::$uniqueIdentifier | protected | property | A unique identifier for this query object. |
| Schema::addField | abstract public | function | Add a new field to a table. |
| Schema::addIndex | abstract public | function | Add an index. |
| Schema::addPrimaryKey | abstract public | function | Add a primary key. |
| Schema::addUniqueKey | abstract public | function | Add a unique key. |
| Schema::buildTableNameCondition | protected | function | Build a condition to match a table name against a standard information_schema. |
| Schema::changeField | abstract public | function | Change a field definition. |
| Schema::createTable | public | function | Create a new table from a Drupal table definition. |
| Schema::dropField | abstract public | function | Drop a field. |
| Schema::dropIndex | abstract public | function | Drop an index. |
| Schema::dropPrimaryKey | abstract public | function | Drop the primary key. |
| Schema::dropTable | abstract public | function | Drop a table. |
| Schema::dropUniqueKey | abstract public | function | Drop a unique key. |
| 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 | abstract public | function | Set the default value for a field. |
| Schema::fieldSetNoDefault | abstract public | function | Set a field to have no default value. |
| Schema::findTables | public | function | Finds all tables that are like the specified base table name. |
| Schema::getFieldTypeMap | abstract public | function | Returns a mapping of Drupal schema field names to DB-native field types. |
| Schema::getPrefixInfo | protected | function | Get information about the table name and schema from the prefix. |
| Schema::indexExists | abstract public | function | Checks if an index exists in the given table. |
| 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::renameTable | abstract public | function | Rename a table. |
| Schema::tableExists | public | function | Check if a table exists. |
| 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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