Hi,
I am using array ‘sub_id[]’ for multiple checkbox,
i want to place validations on all array ‘sub_ids[]’ checbox in model
just
like other validations.
<% for e in @subjects do -%>
<input type=“checkbox” name=“sub_ids[]” id="<%= e.id %>" value="<%=
e.id%>"<% if @book.subjects.include? e %> checked=“checked”<%end%>>
<%= e.name %>
<% end %>
MODEL
class Book < ActiveRecord::Base
has_and_belongs_to_many :subjects
validates_presence_of:title
validates_numericality_of:price
validate :at_least_one_checkbox_was_ticked
protected
def at_least_one_checkbox_was_ticked
unless params[:sub_ids[]].nil?
end
end
end
I’m using only two models book and subject.
thanx in adv.