discourse/db/migrate/20140407055830_add_pinned_g...

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class AddPinnedGloballyToTopics < ActiveRecord::Migration[4.2]
def up
add_column :topics, :pinned_globally, :boolean, null: false, default: false
execute "UPDATE topics set pinned_globally = 't' where category_id = (
SELECT value::int FROM site_settings WHERE name = 'uncategorized_category_id') AND pinned_at IS NOT NULL
"
end
def down
remove_column :topics, :pinned_globally
end
end