ruby on rails - How to write foreign keys in many-to-many rich join? -


I am trying to include several rich people with the table joining in the AdminUser and SectionEdit . This model has been created by producing. Create inside_section_edits, we write 

  create_table: section_edits do | T | T.integer: admin_user_id t.integer: section_id t.timestamps t.string: summary end   
 Any difference in using : admin_user_id  and  Is "admin_user_id" ? The same goes for the second primary key, the Admin_user_id is the foreign key.   
 
 
 No, but better practice is to use symbol : admin_user_id   
 As an alternative idea:  
  create_table: section_edits do | T | T.references: admin_user, index: true t.references: clause, index: true t.string: summarize t.temestamps end   
 In this way, note that you can add foreign key index  index: true   
 context:

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