discourse/lib/db_helper.rb

26 lines
767 B
Ruby

class DbHelper
REMAP_SQL ||= "
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_schema = 'public'
AND is_updatable = 'YES'
AND (data_type LIKE 'char%' OR data_type LIKE 'text%')
ORDER BY table_name, column_name"
def self.remap(from, to)
connection = ActiveRecord::Base.connection.raw_connection
remappable_columns = connection.async_exec(REMAP_SQL).to_a
args = [from, to, "%#{from}%"]
remappable_columns.each do |rc|
table_name = rc["table_name"]
column_name = rc["column_name"]
connection.async_exec("UPDATE #{table_name} SET #{column_name} = REPLACE(#{column_name}, $1, $2) WHERE #{column_name} LIKE $3", args) rescue nil
end
SiteSetting.refresh!
end
end