Update drivers with missing method

drivers/firebird/firebird_driver.php

@@ -54,6 +54,13 @@ class Firebird extends Abstract_Driver {
 	 */
 	protected $conn = NULL;
 
+	/**
+	 * Reference to the service resource
+	 *
+	 * @var resource
+	 */
+	protected $service = NULL;
+
 	/**
 	 * Open the link to the database
 	 *
@@ -70,6 +77,7 @@ class Firebird extends Abstract_Driver {
 			: '\\fbird_connect';
 
 		$this->conn = $connect_function($dbpath, $user, $pass, 'utf-8', 0);
+		$this->service = fbird_service_attach('localhost', $user, $pass);
 
 		// Throw an exception to make this match other pdo classes
 		if ( ! \is_resource($this->conn)) throw new \PDOException(\fbird_errmsg(), \fbird_errcode(), NULL);
@@ -90,6 +98,30 @@ class Firebird extends Abstract_Driver {
 
 	// --------------------------------------------------------------------------
 
+	/**
+	 * Cleanup some loose ends
+	 * @codeCoverageIgnore
+	 */
+	public function __destruct()
+	{
+		fbird_service_detach($this->service);
+		fbird_close($this->conn);
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Return service handle
+	 *
+	 * @return resource
+	 */
+	public function get_service()
+	{
+		return $this->service;
+	}
+
+	// --------------------------------------------------------------------------
+
 	/**
 	 * Empty a database table
 	 *

drivers/firebird/firebird_result.php

@@ -254,8 +254,10 @@ class Firebird_Result extends \PDOStatement {
 		// Get the number of rows for the select query if you can
 		if ($rows === 0 && \is_resource($this->statement) && \get_resource_type($this->statement) === "interbase result")
 		{
+		// @codeCoverageIgnoreStart
 			$rows = \count($this->result);
 		}
+		// @codeCoverageIgnoreEnd
 
 		return $rows;
 	}

drivers/firebird/firebird_sql.php

@@ -297,6 +297,23 @@ SQL;
 			AND d1.RDB\$DEPENDED_ON_NAME <> d2.RDB\$DEPENDED_ON_NAME
 			AND d1.RDB\$FIELD_NAME <> d2.RDB\$FIELD_NAME
 			AND rc.RDB\$RELATION_NAME = '{$table}'  -- table name
+SQL;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Get the list of indexes for the current table
+	 *
+	 * @param string $table
+	 * @return array
+	 */
+	public function index_list($table)
+	{
+		return <<<SQL
+			SELECT "RDB\$INDEX_NAME", "RDB\$UNIQUE_FLAG", "RDB\$FOREIGN_KEY"
+			FROM "RDB\$INDICES"
+			WHERE "RDB\$RELATION_NAME"='{$table}'
 SQL;
 	}
 }

drivers/firebird/firebird_util.php

@@ -87,12 +87,14 @@ class Firebird_Util extends Abstract_Util {
 	/**
 	 * Create an SQL backup file for the current database's structure
 	 * @codeCoverageIgnore
+	 * @param string $db_path
+	 * @param string $new_file
 	 * @return string
 	 */
 	public function backup_structure()
 	{
-		// TODO Implement Backup structure function
+		list($db_path, $new_file) = func_get_args();
-		return '';
+		return ibase_backup($this->get_service(), $db_path, $new_file, IBASE_BKP_METADATA_ONLY);
 	}
 
 	// --------------------------------------------------------------------------

drivers/mysql/mysql_sql.php

@@ -209,5 +209,18 @@ class MySQL_SQL extends Abstract_SQL {
 			WHERE `REFERENCED_TABLE_NAME` = '{$table}';
 SQL;
 	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Get the list of indexes for the current table
+	 *
+	 * @param string $table
+	 * @return array
+	 */
+	public function index_list($table)
+	{
+		return "SHOW INDEX IN {$table}";
+	}
 }
 //End of mysql_sql.php

drivers/pgsql/pgsql_sql.php

@@ -258,6 +258,42 @@ SQL;
 				JOIN "pg_attribute" "att2" ON
 				   "att2"."attrelid" = "con"."conrelid"
 					   AND "att2"."attnum" = "con"."parent"
+SQL;
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Get the list of indexes for the current table
+	 *
+	 * @param string $table
+	 * @return array
+	 */
+	public function index_list($table)
+	{
+		return <<<SQL
+			SELECT
+				t.relname AS table_name,
+				i.relname AS index_name,
+				array_to_string(array_agg(a.attname), ', ') AS column_names
+			FROM
+				pg_class t,
+				pg_class i,
+				pg_index ix,
+				pg_attribute a
+			WHERE
+				t.oid = ix.indrelid
+				AND i.oid = ix.indexrelid
+				AND a.attrelid = t.oid
+				AND a.attnum = ANY(ix.indkey)
+				AND t.relkind = 'r'
+				AND t.relname = '{$table}'
+			GROUP BY
+				t.relname,
+				i.relname
+			ORDER BY
+				t.relname,
+				i.relname;
 SQL;
 	}
 }

drivers/sqlite/sqlite_sql.php

@@ -55,7 +55,7 @@ class SQLite_SQL extends Abstract_SQL {
 	 */
 	public function db_list()
 	{
-		return NULL;
+		return 'PRAGMA database_list';
 	}
 
 	// --------------------------------------------------------------------------
@@ -185,7 +185,20 @@ SQL;
 	 */
 	public function fk_list($table)
 	{
-		return NULL;
+		return 'PRAGMA foreign_key_list("' . $table . '")';
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Get the list of indexes for the current table
+	 *
+	 * @param string $table
+	 * @return array
+	 */
+	public function index_list($table)
+	{
+		return 'PRAGMA index_list("' . $table . '")';
 	}
 
 }