/// <summary> /// Save (insert/update) a Widget into the store /// </summary> /// <param name="entitiesBeingHandled">Entities already being saved further up the save stack</param> /// <param name="widgets">The Widgets to save</param> /// <param name="toSave">Entity types to cascade to, if they are loaded</param> internal void Save(List <Entity> entitiesBeingHandled, Flags toSave, params Widget[] widgets) { if (widgets == null) { throw new ArgumentNullException("widgets"); } Log("Save", widgets.Select <Widget, int>(entity => entity.Identity).ToArray <int>(), EntityType.None); // Copy the list of entities being handled, and add this new set of entities to it. // We're handling those now. List <Entity> entitiesNowBeingHandled = new List <Entity>(entitiesBeingHandled); entitiesNowBeingHandled.AddRange(widgets); // Loop over each entity and save it. foreach (Widget widget in widgets) { // Already being saved higher up the stack? if (entitiesBeingHandled.ContainsEntity(widget)) { continue; } // Allow derived/partial class to do extra work OnBeforeSaveEntity(widget); // Save parent entity... so we can update our key to it if ((toSave & EntityType.Thing) == EntityType.Thing && widget.ThingPopulated) { if (!entitiesBeingHandled.ContainsEntity(widget.Thing)) { ThingRepo.Save(entitiesNowBeingHandled, toSave, widget.Thing); widget.ThingId = widget.Thing.Identity; } } bool saved = false; try { // Save the entity if (widget.IsNew) { this.Mapper.Insert("InsertWidget", widget); saved = true; } else if (widget.IsChanged) { if (this.Mapper.Update("UpdateWidget", widget) != 1) { ThrowWidgetEntityException(widget.Identity); } saved = true; } } catch (Exception ex) { throw EntityLogger.WriteUnexpectedException( ex, "Failed to insert/update Entity", Category.EntityFramework, widget); } // Save child entities... update their key to us if ((toSave & EntityType.FieldTest) == EntityType.FieldTest && widget.FieldTestListUsingForeignKeyFieldPopulated) { foreach (FieldTest childFieldTest in widget.FieldTestListUsingForeignKeyField) { childFieldTest.ForeignKeyField = widget.Identity; if (!entitiesBeingHandled.ContainsEntity(childFieldTest)) { if (childFieldTest.IsDeleted) { FieldTestRepo.Delete(entitiesNowBeingHandled, toSave, childFieldTest); } else { FieldTestRepo.Save(entitiesNowBeingHandled, toSave, childFieldTest); } } } } // Save child entities... update their key to us if ((toSave & EntityType.FieldTest) == EntityType.FieldTest && widget.FieldTestListUsingForeignKeyFieldNullablePopulated) { foreach (FieldTest childFieldTest in widget.FieldTestListUsingForeignKeyFieldNullable) { childFieldTest.ForeignKeyFieldNullable = widget.Identity; if (!entitiesBeingHandled.ContainsEntity(childFieldTest)) { if (childFieldTest.IsDeleted) { FieldTestRepo.Delete(entitiesNowBeingHandled, toSave, childFieldTest); } else { FieldTestRepo.Save(entitiesNowBeingHandled, toSave, childFieldTest); } } } } // Post save protocol if (saved) { // Allow derived/partial class to do extra work OnAfterSaveEntity(widget); widget.Reset(); //The insert/update will have resulted in a new database_update row, inform interested parties RaiseModelChanged(); } } }
/// <summary> /// Delete Widget entities from the store, including sub entites marked for deletion /// </summary> /// <param name="entitiesBeingHandled">Entities already being deleted further up the delete stack</param> /// <param name="widgets">The Widgets to delete</param> /// <param name="toDelete">Entity types to cascade to, if they are loaded</param> internal void Delete(List <Entity> entitiesBeingHandled, Flags toDelete, IEnumerable <Widget> widgets) { if (widgets == null) { throw new ArgumentNullException("widgets"); } Log("Delete", widgets.Select <Widget, int>(entity => entity.Identity).ToArray <int>(), EntityType.None); // Copy the list of entities being handled, and add this new set of entities to it. // We're handling those now. List <Entity> entitiesNowBeingHandled = new List <Entity>(entitiesBeingHandled); entitiesNowBeingHandled.AddRange(widgets); // Loop over each entity and delete it. foreach (Widget widget in widgets) { // Already being deleted higher up the stack? if (entitiesBeingHandled.ContainsEntity(widget)) { continue; } //Allow partial/subclasses to perform additional processing OnBeforeDeleteEntity(widget); // Delete child entities if ((toDelete & EntityType.FieldTest) == EntityType.FieldTest && widget.FieldTestListUsingForeignKeyFieldPopulated) { foreach (FieldTest childFieldTest in widget.FieldTestListUsingForeignKeyField) { if (!entitiesBeingHandled.ContainsEntity(childFieldTest)) { FieldTestRepo.Delete(entitiesNowBeingHandled, toDelete, childFieldTest); } } } // Delete child entities if ((toDelete & EntityType.FieldTest) == EntityType.FieldTest && widget.FieldTestListUsingForeignKeyFieldNullablePopulated) { foreach (FieldTest childFieldTest in widget.FieldTestListUsingForeignKeyFieldNullable) { if (!entitiesBeingHandled.ContainsEntity(childFieldTest)) { FieldTestRepo.Delete(entitiesNowBeingHandled, toDelete, childFieldTest); } } } // Now delete the entity if (this.Mapper.Delete("DeleteWidget", widget.Identity) != 1) { ThrowWidgetEntityException(widget.Identity); } widget.ResetChanged(); //Allow partial/subclasses to perform additional processing OnAfterDeleteEntity(widget); } //Save to the repository updates table if (widgets.Count() > 0) { RaiseModelChanged(); } }