Refactor destroyModel function in base view

closes #7385

Changelog.md

@@ -9,6 +9,7 @@
 * Don't hide posts when blocking someone from the profile [#7379](https://github.com/diaspora/diaspora/pull/7379)
 * Disable autocomplete for the conversation form recipient input [#7375](https://github.com/diaspora/diaspora/pull/7375)
 * Fix sharing indicator on profile page for blocked users [#7382](https://github.com/diaspora/diaspora/pull/7382)
+* Remove post only after a successful deletion on the server [#7385](https://github.com/diaspora/diaspora/pull/7385)
 
 ## Features
 * Add links to liked and commented pages [#5502](https://github.com/diaspora/diaspora/pull/5502)

app/assets/javascripts/app/views.js

@@ -132,18 +132,19 @@ app.views.Base = Backbone.View.extend({
 
   destroyModel: function(evt) {
     evt && evt.preventDefault();
-    var self = this;
     var url = this.model.urlRoot + "/" + this.model.id;
 
     if( confirm(_.result(this, "destroyConfirmMsg")) ) {
       this.$el.addClass("deleting");
-      this.model.destroy({ url: url })
-        .done(function() {
-          self.remove();
-        })
-        .fail(function() {
-          self.$el.removeClass("deleting");
+      this.model.destroy({
+        url: url,
+        success: function() {
+          this.remove();
+        }.bind(this),
+        error: function() {
+          this.$el.removeClass("deleting");
           app.flashMessages.error(Diaspora.I18n.t("failed_to_remove"));
+        }.bind(this)
       });
     }
   },