Add missing method definitions

lib/Cake/Model/Datasource/DboSource.php

@@ -272,6 +272,16 @@ class DboSource extends DataSource {
 		}
 	}
 
+/**
+ * Connects to the database.
+ *
+ * @return bool
+ */
+	public function connect() {
+		// This method is implemented in subclasses
+		return $this->connected;
+	}
+
 /**
  * Reconnects to database server with optional new settings
  *
@@ -619,6 +629,16 @@ class DboSource extends DataSource {
 		}
 	}
 
+/**
+ * Builds a map of the columns contained in a result
+ *
+ * @param array|PDOStatement $results The results to format.
+ * @return void
+ */
+	public function resultSet($results) {
+		// This method is implemented in subclasses
+	}
+
 /**
  * Returns a row from current resultset as an array
  *