undefined method `merge' for 2:Fixnum

Question

i get the following error

undefined method `merge' for 2:Fixnum

for the code

f.check_box "page[group_ids][]", g.id

please, suggest solution for this.

thanks

Answer 1

You should use check_box_tag instead of f.check_box.

check_box_tag "page[group_ids][]", g.id

The difference is f.check_box is for model-bounded forms and the value supplied to the check box is implicit from the given model and doesn't need to be provided.