Fix scheduling

Can't cache the event as the data is changed the scheduling js.

We also can't verify the token in the EventSchedules controller
as we are making susequent ajax calls and have no means to refresh
the token for the second request.

Make draggables scrollable.

There also is no need to spam the console with debug code...

Partly fixes #2353

app/assets/javascripts/osem-schedule.js

@@ -18,13 +18,11 @@ var Schedule = {
     if(event_schedule_id != null){
       var my_url = url + '/' + event_schedule_id;
       var success_callback = function(data) {
-        console.log(data);
         e.attr("event_schedule_id", null);
         e.appendTo($(".unscheduled-events"));
         e.find(".schedule-event-delete-button").hide();
       }
       var error_callback = function(data) {
-        console.log(data);
         showError($.parseJSON(data.responseText).errors);
       }
       $.ajax({
@@ -57,12 +55,10 @@ var Schedule = {
       params['event_schedule']['schedule_id'] = schedule_id;
     }
     var success_callback = function(data) {
-      console.log(data);
       event.attr("event_schedule_id", data.event_schedule_id);
       event.find(".schedule-event-delete-button").show();
       }
     var error_callback = function(data) {
-      console.log(data);
       showError($.parseJSON(data.responseText).errors);
       event.appendTo(previous_parent);
     }
@@ -87,7 +83,6 @@ $(document).ready( function() {
     snap: '.schedule-room-slot',
     revertDuration: 200,
     revert: function (event, ui) {
-        console.log(event.attr);
         return !event;
     },
     stop: function(event, ui) {
@@ -96,7 +91,8 @@ $(document).ready( function() {
     },
     opacity: 0.7,
     snapMode: "inner",
-    zIndex: 2
+    zIndex: 2,
+    scroll: true
   });
 
   // set room cells as droppable

app/controllers/admin/event_schedules_controller.rb

@@ -3,6 +3,7 @@
 module Admin
   class EventSchedulesController < Admin::BaseController
     load_and_authorize_resource :event_schedule
+    skip_before_action :verify_authenticity_token
 
     def create
       if @event_schedule.save

app/views/admin/schedules/_event.html.haml

@@ -1,30 +1,29 @@
-- cache [:admin, @conference, @program, :schedule, event] do
-  - cells_length = event.event_type.length / @program.schedule_interval
-  / this height fits the room cells
-  - compact_grid = @program.schedule_interval < 15
-  - single_cell_height =  compact_grid ? 32 : 58
-  - height = (cells_length * single_cell_height)
-  - height -= 23 unless compact_grid
-  / subtracting the padding before calculate the number of lines
-  - lines = (height - 7) / 23
-  - color = event.track.try(:color).present? ? event.track.try(:color) : 'FFFFFF'
-  - non_schedulable = event_schedule_id && (EventSchedule.find(event_schedule_id).schedule != @schedule)
-  .schedule-event{ style: "height: #{height}px;  background-color: #{color}; color: #{contrast_color(color)}", |
-                   id: "event-#{event.id}", |
-                   event_id: event.id, |
-                   length: cells_length, |
-                   event_schedule_id: event_schedule_id, |
-                   class: "#{'compact' if compact_grid} #{'non_schedulable' if non_schedulable}" }
-    .schedule-event-text{ style: "-webkit-line-clamp: #{lines}; height: #{lines * 23}px;"}
-      %span.schedule-event-delete-button{ onclick: "Schedule.remove(\'event-#{event.id}\');" } X
-      %b
-        = link_to(event.id, admin_conference_program_event_path(@conference, event))
-      = event.speakers.collect(&:name).to_sentence
-      = ':'
-      = event.title
-      - if event.difficulty_level
-        %span.label.label-default= event.difficulty_level.title
-      - if event.event_type
-        %span.label.label-default= event.event_type.title
-      - if event.track
-        %span.label.label-default= event.track.short_name
+- cells_length = event.event_type.length / @program.schedule_interval
+/ this height fits the room cells
+- compact_grid = @program.schedule_interval < 15
+- single_cell_height =  compact_grid ? 32 : 58
+- height = (cells_length * single_cell_height)
+- height -= 23 unless compact_grid
+/ subtracting the padding before calculate the number of lines
+- lines = (height - 7) / 23
+- color = event.track.try(:color).present? ? event.track.try(:color) : 'FFFFFF'
+- non_schedulable = event_schedule_id && (EventSchedule.find(event_schedule_id).schedule != @schedule)
+.schedule-event{ style: "height: #{height}px;  background-color: #{color}; color: #{contrast_color(color)}", |
+                 id: "event-#{event.id}", |
+                 event_id: event.id, |
+                 length: cells_length, |
+                 event_schedule_id: event_schedule_id, |
+                 class: "#{'compact' if compact_grid} #{'non_schedulable' if non_schedulable}" }
+  .schedule-event-text{ style: "-webkit-line-clamp: #{lines}; height: #{lines * 23}px;"}
+    %span.schedule-event-delete-button{ onclick: "Schedule.remove(\'event-#{event.id}\');" } X
+    %b
+      = link_to(event.id, admin_conference_program_event_path(@conference, event))
+    = event.speakers.collect(&:name).to_sentence
+    = ':'
+    = event.title
+    - if event.difficulty_level
+      %span.label.label-default= event.difficulty_level.title
+    - if event.event_type
+      %span.label.label-default= event.event_type.title
+    - if event.track
+      %span.label.label-default= event.track.short_name