How to disable BIGINT primary keys in Rails 5.1

As per pull request , this is not possible at the configuration level. But you can force force to id

be an integer like:

create_table :users, id: :integer do

      

        
        
        
      

    

On the other hand, you should be aware that the changes also affected the behavior references

, so you should be careful with them:

t.references :orders, type: :integer

      

        
        
        
      

    

Seeing that this is too much repetitive code, I suggest you write helpers for this, override the default methods, or be very radical and run your database adapter by changing it to whatever you like. I would go with the second option:

• Create anonymous modules for Migration[5.0]
  
  andActiveRecord::ConnectionAdapters::TableDefinition
  
  
• Identify create_table
  
  , add_reference
  
  , add_belongs_to
  
  in the first references
  
  and belongs_to
  
  in the second ( belongs_to
  
  must be a pseudonym references
  
  )
• In these methods, just change the parameters and call super. Don't forget to handle signatures!
• Providing these modules to the appropriate classes will be all for you.
• You can go even better and do it for your removal colleagues.