datetime - Rails don't generate created_at for fixture -


i have model question "question_id", "elapsed_time", "allowed_time" , "status" fields , controller named reporting receive json containing questions , save it. ("question_id" not related of models)

so far there no problem. until try run tests. i've error when rails trying load question's fixture : activerecord::statementinvalid: sqlite3::constraintexception: questions.created_at may not null: insert "questions"

here's fixture :

one:   id: 1   question_id: mystring   app: mystring   guid: 1   status: 1   elapsed_time: 1   allowed_time: 1

and model :

class createquestions < activerecord::migration   def change     create_table :questions |t|       t.string :app       t.integer :guid       t.string :question_id       t.integer :elapsed_time       t.integer :allowed_time       t.datetime :happened_at       t.integer :status        t.timestamps     end   end end

any idea ?

my model's name in plural form. change singular , rails generate timestamp.

see how rails generate timestamp : https://github.com/rails/rails/blob/master/activerecord/lib/active_record/fixtures.rb#l560


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