Using flash instead of alerts in the schedule

Using flash instead of alerts in the schedule to notify errors.

Also, a message shown when a schedule is successfully created.

app/controllers/admin/event_schedules_controller.rb

@@ -6,7 +6,7 @@ module Admin
       if @event_schedule.save
         render json: { 'status' => 'ok', event_schedule_id: @event_schedule.id }
       else
-        render json: { 'status' => 'error' }
+        render json: { 'status' => "The event couldn't be scheduled" }
       end
     end
 
@@ -14,7 +14,7 @@ module Admin
       if @event_schedule.update(event_schedule_params)
         render json: { 'status' => 'ok', event_schedule_id: @event_schedule.id }
       else
-        render json: { 'status' => 'error' }
+        render json: { 'status' => "The event couldn't be scheduled" }
       end
     end
 
@@ -22,7 +22,7 @@ module Admin
       if @event_schedule.destroy
         render json: { 'status' => 'ok' }
       else
-        render json: { 'status' => 'error' }
+        render json: { 'status' => "The event couldn't be unscheduled" }
       end
     end
 

app/controllers/admin/programs_controller.rb

@@ -26,7 +26,7 @@ module Admin
             flash[:error] = "Updating program failed. #{@program.errors.to_a.join('. ')}."
             render :new
           end
-          format.js { render json: { 'status' => 'error' } }
+          format.js { render json: { 'status' => "The selected schedule couldn't been updated" } }
         end
       end
     end

app/controllers/admin/schedules_controller.rb

@@ -13,7 +13,8 @@ module Admin
 
     def create
       if @schedule.save
-        redirect_to action: 'show', id: @schedule.id
+        redirect_to admin_conference_schedule_path(@conference.short_title, @schedule.id),
+                    notice: 'Schedule was successfully created.'
       else
         redirect_to admin_conference_schedules_path(conference_id: @conference.short_title),
                     error: 'Could not create schedule'