apps/workbench/app/assets/javascripts/collections.js

   1 jQuery(function($){
   2     $(document).on('click', '.toggle-persist button', function() {
   3         var toggle_group = $(this).parents('[data-remote-href]').first();
   4         var want_persist = !toggle_group.find('button').hasClass('active');
   5         var want_state = want_persist ? 'persistent' : 'cache';
   6         toggle_group.find('button').
   7             toggleClass('active', want_persist).
   8             html(want_persist ? 'Persistent' : 'Cache');
   9         $.ajax(toggle_group.attr('data-remote-href'),
  10                {dataType: 'json',
  11                 type: 'POST',
  12                 data: {
  13                     value: want_state
  14                 },
  15                 context: {
  16                     toggle_group: toggle_group,
  17                     want_state: want_state,
  18                     button: this
  19                 }
  20                }).
  21             done(function(data, status, jqxhr) {
  22                 var context = this;
  23                 $(document).trigger('ajax:complete');
  24                 // Remove "danger" status in case a previous action failed
  25                 $('.btn-danger', context.toggle_group).
  26                     addClass('btn-info').
  27                     removeClass('btn-danger');
  28                 // Update last-saved-state
  29                 context.toggle_group.
  30                     attr('data-persistent-state', context.want_state);
  31             }).
  32             fail(function(jqxhr, status, error) {
  33                 var context = this;
  34                 var saved_state;
  35                 $(document).trigger('ajax:complete');
  36                 // Add a visual indication that something failed
  37                 $(context.button).
  38                     addClass('btn-danger').
  39                     removeClass('btn-info');
  40                 // Change to the last-saved-state
  41                 saved_state = context.toggle_group.attr('data-persistent-state');
  42                 $(context.button).
  43                     toggleClass('active', saved_state == 'persistent').
  44                     html(saved_state == 'persistent' ? 'Persistent' : 'Cache');
  45
  46                 if (jqxhr.readyState == 0 || jqxhr.status == 0) {
  47                     // Request cancelled due to page reload.
  48                     // Displaying an alert would be rather annoying.
  49                 } else if (jqxhr.responseJSON && jqxhr.responseJSON.errors) {
  50                     window.alert("Request failed: " +
  51                                  jqxhr.responseJSON.errors.join("; "));
  52                 } else {
  53                     window.alert("Request failed.");
  54                 }
  55             });
  56         $(document).trigger('ajax:send');
  57     });
  58 });