Rails 4.2 Can't modify frozen hash ActiveSupport::HashWithIndifferentAccess

[the-teacher]

I have Can't modify frozen hash ActiveSupport::HashWithIndifferentAccess when I do blog.tag_list = "hello" with rails 4.2

Now I dont know how to fix it.

[the-teacher]

https://github.com/mbleigh/acts-as-taggable-on/blob/master/lib/acts_as_taggable_on/taggable/core.rb#L351

changed_attributes

I haven't tag_list into this hash

and changed_attributes[attrib] gives problem

[seuros]

Tag list should receive an array or a TagList

[twalpole]

I believe PR #583 fixes this -- changed_attributes is frozen in rails 4.2 so can't be modified through the accessor. Rails 4.2 also requires filtering the *_list attributes from changed_attributes when doing db updates.

[jnankin]

Will a new version of the gem come out that contains this fix? Right now it looks like I'll have to tie this to a master commit in my Gemfile to get this fix.