```ruby
class DemandProgressGateway < ActiveRecord::Base
  self.abstract_class = true
  
  establish_connection "demand_progress_" + ::Rails.env.to_s
end
```

Revert "Changed connection string in DP Gateway to string"
user
```ruby
class DemandProgressGateway < ActiveRecord::Base
  self.abstract_class = true
  
  establish_connection "demand_progress_"[::Rails.env]
end
```
assistant