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ModelsDatabasesRelationships.md

Models, Databases, Relationships in Rails

What is the difference between a primary key and a foreign key? Where would we find a primary key? What would it be called by default? Where would we find a foreign key? What is the naming convention for a foreign key?

Write down one example of:

  • a one-to-one relationship.
  • a one-to-many relationship.
  • a many-to-many relationship.
@lingtran
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lingtran commented Apr 5, 2016

https://gist.github.com/lingtran/524e2d952049d03da4ceb0335d580979

@kamiboers
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https://gist.github.com/kamiboers/301e5a994d86143bf9e582fb357c6da8

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