a lot of work

lib/db.vala

@@ -29,7 +29,11 @@ namespace LibSernatur {
 			/**
 			 * Connection error
 			 */
-			CONNECT
+			CONNECT,
+			/**
+			 * Escape error
+			 */
+			ESCAPE
 		}
 
 		/**
@@ -49,7 +53,7 @@ namespace LibSernatur {
 		/**
 		 * Class to handle database connections
 		 */
-		public class Connection : GLib.Object {
+		public class Connection : Object {
 			/**
 			 * The database connection
 			 */
@@ -71,7 +75,26 @@ namespace LibSernatur {
 				if (db.get_status () != Postgres.ConnectionStatus.OK) {
 					throw new PostgresError.CONNECT (db.get_error_message ());
 				}
-				GLib.print (dgettext (null, "Postgresql server version:") + " %d\n", db.get_server_version ());
+				GLib.print (_ ("Postgresql server version:") + " %d\n", db.get_server_version ());
+			}
+
+			/**
+			 * Escape a string to be safe to use in Postgresql queries
+			 * @param str The string to escape
+			 * @return Returns the escaped string
+			 * @throws PostgresError Thrown if there was some problem escaping the string
+			 */
+			public string escape (string str) throws PostgresError {
+				string* to = malloc ((sizeof (string) * str.length * 2) + 1); // to has to be double the size of str + 1
+				int error_code;
+				db.escape_string_conn (to, str, str.length, out error_code);
+				if (error_code != 0) {
+					throw new PostgresError.ESCAPE (db.get_error_message ());
+				}
+
+				string result = to;
+				free (to);
+				return result;
 			}
 		}
 	}