@coagmano Thanks for the input, it seem to be working fine now.
There’s just one problem, in the console it prints Exception in template helper: TypeError: Cannot read property 'name' of undefined
for {{fromCategory 'name' this.category}}
Even though it prints the name correctly, this error seem to show up anyway.
That means that findOne is returning undefined. AKA it can’t find a document with the _id you’ve specified.
Check that you are passing in the _id of the category and not it’s name.
And change your helper to handle the case where it can’t find the category by _id: