Hey all,
I get an undefined method `join' for #<String NoMethodError.
student.rb
has_one :student_fail
attr_accessor :student_fail_attribute
#controller
def student_fail
@student = @student.find params[:id]
def update_student_fail
@student.build_student_fail params[:student][:student_fail_attribute]
if @student.save
#view
form_for @student do |f| f.collection_select(:student_fail_attribute,
StudentFailState.all, :id, :key) end
I don't understand why the error. This is the example that rails
documentation gives, which looks very close to mine:
collection_select(:post, :author_id, Author.all, :id, :name_with_initial,
{:prompt => true})
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