discourse/db/migrate/20190414162753_rename_post_...

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# frozen_string_literal: true
class RenamePostNotices < ActiveRecord::Migration[5.2]
def up
add_index :post_custom_fields, :post_id, unique: true, name: "index_post_custom_fields_on_notice_type", where: "name = 'notice_type'"
add_index :post_custom_fields, :post_id, unique: true, name: "index_post_custom_fields_on_notice_args", where: "name = 'notice_args'"
# Split site setting `min_post_notice_tl` into `new_user_notice_tl` and `returning_user_notice_tl`.
execute <<~SQL
INSERT INTO site_settings(name, data_type, value, created_at, updated_at)
SELECT 'new_user_notice_tl', data_type, value, created_at, updated_at
FROM site_settings WHERE name = 'min_post_notice_tl'
UNION
SELECT 'returning_user_notice_tl', data_type, value, created_at, updated_at
FROM site_settings WHERE name = 'min_post_notice_tl'
SQL
execute "DELETE FROM site_settings WHERE name = 'min_post_notice_tl'"
# Rename custom fields to match new naming scheme.
execute "UPDATE post_custom_fields SET name = 'notice_type', value = 'new_user' WHERE name = 'post_notice_type' AND value = 'first'"
execute "UPDATE post_custom_fields SET name = 'notice_type', value = 'returning_user' WHERE name = 'post_notice_type' AND value = 'returning'"
execute "UPDATE post_custom_fields SET name = 'notice_args' WHERE name = 'post_notice_time'"
# Delete all notices for bots, staged and anonymous users.
execute <<~SQL
DELETE FROM user_custom_fields
WHERE (name = 'notice_type' OR name = 'notice_args')
AND user_id IN (SELECT id FROM users WHERE id <= 0 OR staged = true
UNION
SELECT user_id FROM user_custom_fields ucf WHERE name = 'master_id')
SQL
end
def down
raise ActiveRecord::IrreversibleMigration
end
end