My problem is somewhat similar to question nested_form gem add works but remove fails...why?.
I have a product edit page, where sub-categories of products are linked in product_sub_categories. To assign sub-categories to product, I used nested attributes for product_sub_categories. So, product can have more than one sub_categories.
In product model,
has_many :product_sub_categories
has_many :sub_categories, :through => :product_sub_categories
accepts_nested_attributes_for :product_sub_categories, :allow_destroy => true
And in product edit view:
<%= f.fields_for :product_sub_categories do |product_sub_category| %>
<%= product_sub_category.collection_select :sub_category_id, @sub_categories, :id, :sub_category, {:include_blank => 'Select a Sub Category'} %>
<%= product_sub_category.link_to_remove "Remove", :class => "subcatlink" %>
<% end %>
Code works well for adding sub-categories. But fails when I remove sub-category. Log gives:
"product_sub_categories_attributes"=>{"0"=>{"sub_category_id"=>"1", "_destroy"=>"false", "id"=>"9"}, "1"=>{"sub_category_id"=>"1", "_destroy"=>"1", "id"=>"17"}},
ProductSubCategory Load (0.2ms)[0m [1mSELECT `product_sub_categories`.* FROM `product_sub_categories` WHERE `product_sub_categories`.`product_id` = 8 AND `product_sub_categories`.`id` IN (9, 17)
Though, i click on Remove, it just passes _destroy="1", but doesn't destroy sub-category.
Can anybody tell the solution?
Update:
Extremely sorry for my stupid mistake. I didnt see code properly. In the model i duplicated
accepts_nested_attributes_for :product_sub_categories
without :allow_destroy => true. When i removed it, code worked properly.
