Retrospring/db/migrate/20210811133004_add_direct_t...

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# frozen_string_literal: true
class AddDirectToQuestions < ActiveRecord::Migration[5.2]
def change
add_column :questions, :direct, :boolean, null: false, default: false
# default all legacy questions to direct
execute 'UPDATE questions SET direct = true;'
# All questions where
# - the author is not 'justask' (generated questions), and
# - the question wasn't asked anonymously
# can be direct or not. This depends on if the question has more than one answer
execute "
UPDATE questions
SET direct = (NOT (questions.answer_count > 1))
WHERE author_name <> 'justask'
OR NOT author_is_anonymous;"
# All questions which exist in at least more than one inbox are not direct
execute "
UPDATE questions
SET direct = false
WHERE id IN (
SELECT question_id FROM inboxes GROUP BY question_id HAVING count(question_id) > 1
);"
end
end