In Rails, how to handle multiple checked checkboxes, just split on the , or?

Question

Curious what the \'rails way\' of handling the situation when a user checks multiple checkboxes (with the same name value), and it gets posted back to the controller.

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Answer 1

If you want to use a checked param you have to write this :

check_box_tag "tag_ids[]", 1, true

And not this :

check_box_tag 'tag_ids[]', 1, true

It took me a while to figure out, I hope it will help someone.