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class CreateNormalizedStatuses < ActiveRecord::Migration[5.2]
def up
create_table :normalized_statuses do |t|
t.references :status, null: false, foreign_key: {on_delete: :cascade}, index: {unique: true}
t.text :text
end
safety_assured do
remove_index :statuses, name: 'index_statuses_on_normalized_text_trgm'
execute 'INSERT INTO normalized_statuses (status_id, text) SELECT id, normalized_text FROM statuses'
remove_column :statuses, :normalized_text
end
end
def down
safety_assured do
execute 'UPDATE statuses SET normalized_text = s.text FROM (SELECT status_id, text FROM normalized_statuses) AS s WHERE statuses.id = s.id'
remove_index :normalized_statuses, name: 'index_statuses_on_normalized_text_trgm'
drop_table :normalized_statuses
add_column :statuses, :normalized_text, :text, null: false, default: ''
end
end
end
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