1 schema.inc | protected DatabaseSchema::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 Backdrop 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 Backdrop tables or information associated with Backdrop 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.
$add_prefix: Boolean to indicate whether the table name needs to be prefixed.
Return value
QueryConditionInterface: A DatabaseCondition object.
File
- core/
includes/ database/ schema.inc, line 297 - Generic Database schema code.
Class
- DatabaseSchema
- Base class for database schema definitions.
Code
protected function buildTableNameCondition($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 DatabaseCondition('AND');
$condition->condition('table_catalog', $info['database']);
$condition->condition('table_schema', $table_info['schema']);
$condition->condition('table_name', $table_info['table'], $operator);
return $condition;
}