Having a hard time debugging this one.
Using jQuery UI Droppable in a Backbone application using CoffeeScript.
There is nothing wrong with the functionality, everything is working how I intended it to, but I am still getting this console error every time an item is dropped.
Uncaught TypeError: Cannot read property 'options' of undefined
Code for the droppable:
@$el.droppable
tolerance: 'pointer'
hoverClass: 'drop_hover'
accept: '.item'
drop: (e, ui) =>
draggedItem = ui.draggable
itemId = draggedItem.attr 'data-id'
allInstances = @model.collection.models
findItems = for instance in allInstances
instanceItems = instance.get 'items'
instanceItems.getByCid itemId
compacted = _.compact findItems
droppedItem = compacted[0]
droppedCollection = droppedItem.collection
droppedCollection.remove droppedItem if _.include droppedCollection.models, droppedItem
@itemCollection.add droppedItem unless _.include @items, droppedItem
Like I said the functionality is working properly, I just would like to get rid of the error if someone knows anything I could try to debug.
Stack Trace
Uncaught TypeError: Cannot read property 'options' of undefined
a.ui.plugin.add.stopjquery-ui.js:49
a.ui.version.a.extend.plugin.call jquery-ui.js:9
a.widget._trigger jquery-ui.js:49
a.widget._mouseStop jquery-ui.js:49
a.widget._mouseUp jquery-ui.js:28
a.widget._mouseUp jquery-ui.js:49
a.widget._mouseDown._mouseUpDelegate jquery-ui.js:28
f.event.dispatch jquery-1.7.1.min.js:3
f.event.add.h.handle.i jquery-1.7.1.min.js:3
Thanks for any help.
This seems to be finally fixed properly in v1.11.0, without all of the workarounds proposed here:
It seems that removing the original draggable item now will not result in this error because properties are now stored on the instance field. I've confirmed that v1.11.0 fixes this exact error that popped up on v1.10.4.