protected Schema::buildTableNameCondition($table_name, $operator = '=', $add_prefix = TRUE)
Build a condition to match a table name against a standard information_schema.
The information_schema is a SQL standard that provides information about the database server and the databases, schemas, tables, columns and users within it. This makes information_schema a useful tool to use across the drupal database drivers and is used by a few different functions. The function below describes the conditions to be meet when querying information_schema.tables for drupal tables or information associated with drupal tables. Even though this is the standard method, not all databases follow standards and so this method should be overwritten by a database driver if the database provider uses alternate methods. Because information_schema.tables is used in a few different functions, a database driver will only need to override this function to make all the others work. For example see core/includes/databases/mysql/schema.inc.
Parameters
$table_name: The name of the table in question.
$operator: The operator to apply on the 'table' part of the condition.
$add_prefix: Boolean to indicate whether the table name needs to be prefixed.
Return value
\Drupal\Core\Database\Query\Condition A Condition object.
File
- core/lib/Drupal/Core/Database/Schema.php, line 141
Class
- Schema
- Provides a base implementation for Database Schema.
Namespace
Drupal\Core\Database
Code
protected function buildTableNameCondition($table_name, $operator = '=', $add_prefix = TRUE) { $info = $this->connection->getConnectionOptions(); // Retrieve the table name and schema $table_info = $this->getPrefixInfo($table_name, $add_prefix); $condition = new Condition('AND'); $condition->condition('table_catalog', $info['database']); $condition->condition('table_schema', $table_info['schema']); $condition->condition('table_name', $table_info['table'], $operator); return $condition; }
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