function Schema::tableExists
Same name in this branch
- 11.x core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::tableExists()
- 11.x core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::tableExists()
Same name in other branches
- 9 core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::tableExists()
- 9 core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::tableExists()
- 9 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::tableExists()
- 8.9.x core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::tableExists()
- 8.9.x core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::tableExists()
- 8.9.x core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php \Drupal\Core\Database\Driver\pgsql\Schema::tableExists()
- 8.9.x core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::tableExists()
- 10 core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::tableExists()
- 10 core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::tableExists()
- 10 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::tableExists()
Check if a table exists.
Parameters
$table: The name of the table in drupal (no prefixing).
bool $add_prefix: Boolean to indicate whether the table name needs to be prefixed.
Return value
bool TRUE if the given table exists, otherwise FALSE.
11 calls to Schema::tableExists()
- Schema::addField in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Add a new field to a table.
- Schema::addIndex in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Add an index.
- Schema::addPrimaryKey in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Add a primary key.
- Schema::addUniqueKey in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Add a unique key.
- Schema::createTable in core/
lib/ Drupal/ Core/ Database/ Schema.php - Create a new table from a Drupal table definition.
2 methods override Schema::tableExists()
- Schema::tableExists in core/
modules/ sqlite/ src/ Driver/ Database/ sqlite/ Schema.php - Check if a table exists.
- Schema::tableExists in core/
modules/ pgsql/ src/ Driver/ Database/ pgsql/ Schema.php - Check if a table exists.
File
-
core/
lib/ Drupal/ Core/ Database/ Schema.php, line 170
Class
- Schema
- Provides a base implementation for Database Schema.
Namespace
Drupal\Core\DatabaseCode
public function tableExists($table, bool $add_prefix = TRUE) {
$condition = $this->buildTableNameCondition($table, '=', $add_prefix);
$condition->compile($this->connection, $this);
// Normally, we would heartily discourage the use of string
// concatenation for conditionals like this however, we
// couldn't use \Drupal::database()->select() here because it would prefix
// information_schema.tables and the query would fail.
// Don't use {} around information_schema.tables table.
return (bool) $this->connection
->query("SELECT 1 FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())
->fetchField();
}
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