handle local deletion relationships

app/assets/javascripts/app/frontend/models/api/item.js

@@ -107,6 +107,10 @@ class Item {
     // must override
   }
 
+  isBeingRemovedLocally() {
+
+  }
+
   removeAllRelationships() {
     // must override
     this.setDirty(true);

app/assets/javascripts/app/frontend/models/app/note.js

@@ -56,6 +56,13 @@ class Note extends Item {
     this.tags = [];
   }
 
+  isBeingRemovedLocally() {
+    this.tags.forEach(function(tag){
+      _.pull(tag.notes, this);
+    }.bind(this))
+    super.isBeingRemovedLocally();
+  }
+
   static filterDummyNotes(notes) {
     var filtered = notes.filter(function(note){return note.dummy == false || note.dummy == null});
     return filtered;

app/assets/javascripts/app/frontend/models/app/tag.js

@@ -55,6 +55,13 @@ class Tag extends Item {
     this.notes = [];
   }
 
+  isBeingRemovedLocally() {
+    this.notes.forEach(function(note){
+      _.pull(note.tags, this);
+    }.bind(this))
+    super.isBeingRemovedLocally();
+  }
+
   get content_type() {
     return "Tag";
   }