function Schema::fieldExists
Same name in this branch
- 11.x core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::fieldExists()
- 11.x core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::fieldExists()
Same name in other branches
- 9 core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::fieldExists()
- 9 core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::fieldExists()
- 9 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::fieldExists()
- 8.9.x core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::fieldExists()
- 8.9.x core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::fieldExists()
- 8.9.x core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php \Drupal\Core\Database\Driver\pgsql\Schema::fieldExists()
- 8.9.x core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::fieldExists()
- 10 core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::fieldExists()
- 10 core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::fieldExists()
- 10 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::fieldExists()
Check if a column exists in the given table.
Parameters
string $table: The name of the table in drupal (no prefixing).
string $column: The name of the column.
Return value
bool TRUE if the given column exists, otherwise FALSE.
3 calls to Schema::fieldExists()
- Schema::addField in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Add a new field to a table.
- Schema::changeField in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Change a field definition.
- Schema::dropField in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Schema.php - Drop a field.
2 methods override Schema::fieldExists()
- Schema::fieldExists in core/
modules/ sqlite/ src/ Driver/ Database/ sqlite/ Schema.php - Check if a column exists in the given table.
- Schema::fieldExists in core/
modules/ pgsql/ src/ Driver/ Database/ pgsql/ Schema.php - Check if a column exists in the given table.
File
-
core/
lib/ Drupal/ Core/ Database/ Schema.php, line 248
Class
- Schema
- Provides a base implementation for Database Schema.
Namespace
Drupal\Core\DatabaseCode
public function fieldExists($table, $column) {
$condition = $this->buildTableNameCondition($table);
$condition->condition('column_name', $column);
$condition->compile($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.columns table.
return (bool) $this->connection
->query("SELECT 1 FROM information_schema.columns WHERE " . (string) $condition, $condition->arguments())
->fetchField();
}
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