ActiveRecord::StatementInvalid: PG::Error: ERROR: null value in column "id" violates not-null constraint
I have same problem once. Here is my problem. I did a
rake db:schema:dump
rake db:schema:load
and the table got problem as below:
create_table "campaign_line_items_backup", :id => false, :force => true do |t|
t.integer "id"
t.integer "campaign_id"
t.integer "size_id"
t.text "name"
it should be
create_table "campaign_line_items_backup", :force => true do |t|
t.integer "campaign_id"
t.integer "size_id"
t.text "name"
I am not sure about your problem, That's the way I fixed mine.