add delete option and error handling to tours
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c659ab03e0
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@ -39,7 +39,11 @@ namespace LibSernatur {
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/**
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* Invalid value
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*/
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INVALID_VALUE
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INVALID_VALUE,
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/**
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* Could not be modified or deleted because of a constraint
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*/
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FOREIGN_KEY_CONSTAINT
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}
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/**
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@ -129,6 +129,29 @@ namespace LibSernatur {
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#endif
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}
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}
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/**
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* Delete a tour in the database
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* @param conn The database connection
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* @param tour The tour to update
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* @throws DBError Thrown if the data in the object is invalid
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*/
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public static void delete_tour (Database conn, Tour tour) throws DBError {
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if (tour.id_tour == 0) {
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throw new DBError.INVALID_VALUE (dgettext (null, "The id of the tour is invalid!"));
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}
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var res = conn.exec (Query.get_query (Query.Type.DELETE_TOUR, tour));
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if (res.get_status () != ExecStatus.COMMAND_OK) {
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if (res.get_error_field (FieldCode.SQLSTATE) == "23503") {
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throw new DBError.FOREIGN_KEY_CONSTAINT (res.get_error_field (FieldCode.MESSAGE_PRIMARY));
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}
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#if DEBUG
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error (conn.get_error_message ());
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#else
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warning (conn.get_error_message ());
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#endif
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}
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}
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}
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}
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}
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@ -21,30 +21,37 @@ namespace LibSernatur {
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public enum Type {
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SELECT_ALL_TOURS,
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INSERT_TOUR,
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UPDATE_TOUR
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UPDATE_TOUR,
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DELETE_TOUR
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}
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public static string get_query (Type type, T? t) {
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if (type == Type.SELECT_ALL_TOURS) {
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return "
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switch (type) {
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case SELECT_ALL_TOURS:
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return "
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SELECT T.id_tour, T.nombre_tour, T.costo_indiv, T.costo_grupal, T.minima_personas,
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C.id_ciudad, C.nombre_ciudad,
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R.id_region, R.nombre_region
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FROM tour T
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JOIN ciudad C ON (T.id_ciudad = C.id_ciudad)
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JOIN region R ON (C.id_region = R.id_region)";
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}
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else if (type == Type.UPDATE_TOUR) {
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Tour tour = (Tour) t;
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return "
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case UPDATE_TOUR:
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Tour tour = (Tour) t;
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return "
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UPDATE tour SET
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nombre_tour = '" + tour.nombre_tour + "',
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costo_indiv = " + tour.costo_indiv.to_string () + ",
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costo_grupal = " + tour.costo_grupal.to_string () + ",
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minima_personas = " + tour.minima_personas.to_string () + "
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WHERE id_tour = " + tour.id_tour.to_string ();
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case DELETE_TOUR:
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Tour tour = (Tour) t;
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return "
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DELETE FROM tour
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WHERE id_tour = " + tour.id_tour.to_string ();
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default:
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return "";
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}
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return "";
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}
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}
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}
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@ -174,7 +174,51 @@ namespace Sernatur {
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}
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}
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else if (button == delete_tour) {
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print ("Delete tour clicked\n");
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var msg = new Gtk.MessageDialog (this,
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Gtk.DialogFlags.MODAL,
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Gtk.MessageType.ERROR,
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Gtk.ButtonsType.YES_NO,
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dgettext(null, "Are you sure you wish to delete this tour?"));
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msg.response.connect ((response_id) => {
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switch (response_id) {
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case Gtk.ResponseType.YES:
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try {
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Gtk.TreeModel model;
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Gtk.TreeIter iter;
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Tour tour;
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if (selection.get_selected (out model, out iter)) {
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model.get (iter,
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Column.TOUR, out tour);
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Tour.delete_tour (conn.db, tour);
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}
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}
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catch (DBError e) {
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if (e.code == 1) {
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var msg2 = new Gtk.MessageDialog (this,
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Gtk.DialogFlags.MODAL,
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Gtk.MessageType.ERROR,
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Gtk.ButtonsType.CLOSE,
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dgettext(null, "Error: Could not delete tour because there are still associated arrival and departure dates and times!"));
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msg2.response.connect ((response_id) => {
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msg2.destroy ();
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});
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msg2.set_title (dgettext (null, "Error"));
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msg2.show ();
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}
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else {
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#if DEBUG
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error (e.message);
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#else
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warning (e.message);
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#endif
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}
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}
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break;
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}
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msg.destroy ();
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});
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msg.set_title (dgettext (null, "Error"));
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msg.show ();
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}
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else if (button == close_tour) {
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this.close ();
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