gray out assignments of zero days

Author: tec

app/assets/stylesheets/assignments_table.css.scss

@@ -15,6 +15,9 @@ table {
           &.total {
             background-color: #ddd;
           }
+          .no-assignment {
+            color: #ccc;
+          }
         }
         &.editable {
           text-align:center;

app/views/application/_cell_assignment.html.erb

@@ -1,7 +1,7 @@
 <%= content_tag :span, 
                 @assignment_days[worker][project],
                 :id => "w#{worker.id}_p#{project.id}_label",
-                :class => "assignment_label" %>
+                :class => "assignment_label #{ "no-assignment" if @assignment_days[worker][project] == 0 }" %>
 <%= content_tag :span, 
                 render("assignments/form_days_only", :assignment => @assignments[worker][project]),
                 :id => "w#{worker.id}_p#{project.id}_form",

app/views/assignments/_create_or_update.js.coffee

@@ -1,22 +1,21 @@
 (->
   worker     = <%= @assignment.worker_id %>
   project    = <%= @assignment.project_id %>
-  days       = <%= @assignment.days_per_week %>
+  days       = <%= @assignment.destroyed? ? @assignment.previous_days : @assignment.days_per_week %>
   assignment = <%= @assignment.id %>
 
   label_id = '#w' + worker + '_p' + project + '_label'
   form_id  = '#w' + worker + '_p' + project + '_form form'
 
+  $(label_id).html days
 <% if @assignment.destroyed? %>
   <%# assignment was deleted, days_per_week should have the value of the previous assignment %>
-  $(label_id).html('<%= @assignment.previous_days %>')
   <%# form for creating assignments %>
   $(form_id).attr 'id', 'new_assignment'
   $(form_id).attr 'action', '/assignments'
   $(form_id + ' div input[name=\'_method\']').remove()
 <% else %>
   <%# update the value of days_per_week %>
-  $(label_id).html days
   <%# form for updating assignments %>
   $(form_id).attr 'id', 'edit_assignment_' + assignment
   $(form_id).attr 'action', '/assignments/' + assignment
@@ -26,6 +25,11 @@
     $(form_id).children('div').first().append input
 <% end %>
 
+  if days == 0
+    $(label_id).addClass('no-assignment')
+  else
+    $(label_id).removeClass('no-assignment')
+
   <%# recalculate column and row sums for total assignments %>
   worker_total = 0
   $('.worker_' + worker + ' .assignment_label').each( ->