I have written the necessary code including the join table to create the many to many relationship between category and products and it works from testing in the rails console. When I chose more than one category field it saves them and stays there when I go back to edit it but when I view the product the default number is set.
I tried using
permit_params categories_ids: []
But it still wouldn't set the multiple chosen categories when I saved the product.
category.rb
has_ancestry
has_many :children, class_name: 'Category', foreign_key: 'ancestry'
has_and_belongs_to_many :products
accepts_nested_attributes_for :products, allow_destroy: true
product.rb
has_and_belongs_to_many :categories
accepts_nested_attributes_for :categories, allow_destroy: true
products.rb (ActiveAdmin)
ActiveAdmin.register Product do
menu parent: "Shop"
scope :active, default: true
scope :disabled
filter :user
filter :categories
filter :personalisation
filter :name
filter :description
filter :out_of_stock
filter :price_cents
filter :weight
index do
selectable_column
column :name
column :price
column :description
column :categories
actions
end
form do |f|
f.inputs "Details" do
f.input :categories, as: :select, collection: Category.all, multiple: true
end
