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class RemoveMRdiffFields < ActiveRecord::Migration
def up
remove_column :merge_requests, :st_commits
remove_column :merge_requests, :st_diffs
end
def down
add_column :merge_requests, :st_commits, :text, null: true, limit: 2147483647
add_column :merge_requests, :st_diffs, :text, null: true, limit: 2147483647
if ActiveRecord::Base.connection.adapter_name == 'PostgreSQL'
execute "UPDATE merge_requests mr
SET (st_commits, st_diffs) = (md.st_commits, md.st_diffs)
FROM merge_request_diffs md
WHERE md.merge_request_id = mr.id"
else
execute "UPDATE merge_requests mr, merge_request_diffs md SET mr.st_commits = md.st_commits WHERE md.merge_request_id = mr.id"
execute "UPDATE merge_requests mr, merge_request_diffs md SET mr.st_diffs = md.st_diffs WHERE md.merge_request_id = mr.id"
end
end
end
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