Is HABTM supported by Ransack?
Having the models:
Can I use ransack to search a Shop by a single category? What does the form look like?
I think the field you're trying to use would be
:categories_id_eq
Usage would be something like this
<%= f.label :categories_id_eq, "Category" %>
<%= f.collection_select :categories_id_eq, Category.order(:title), :id, :title %>
You should be aware that there are gotchas: while this workds fine
:categories_id_eq
If you want to find products in any category you can go with
:categories_id_in
But if you need to get products belonging to all of categories selected it wont work as expected:
:categories_id_all
returns zero results see discussions:
Rails, Ransack: How to search HABTM relationship for "all" matches instead of "any"
Convert ActiveRecord habtm query to Arel .
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