Question

I have been playing with setting up different relationships for a few hours now and I am not sure how to do a has_many relationship with what I am using. Not sure if it is just naming conflicts or my just not understanding.

Here is my database tables:

show_names (table name):
id
show_id
name

shows (table name):
id
length
synopsis
number_of_episodes
status

So each show has many possible names. So I want to setup a has_many relationship so I can call something like:

Show.all.shownames[0].name

That would give me the first name.

Here are my code samples for my models, and its where I think I am messing up.

class ShowName < ActiveRecord::Base
  has_many :shows
end

and

class Show < ActiveRecord::Base
  belongs_to :shownames
end

Using ShowName.all works to get data and Show.all works too.

So I have 2 main questions about this.

1) Am I just misnaming something or putting it in the wrong place?
2) How do I access the show names? I know in other using has_one i just use the name of the entity does it work the same with has_many

Any help is appreciated.

Answer 1

You flipped the belongs_to and has_many and needed an extra underscore. Try this:

class ShowName < ActiveRecord::Base
  belongs_to :show
end

and

class Show < ActiveRecord::Base
  has_many :show_names
end

and now…

show = Show.first
show.show_names  =>  ["First name for first show", "Second name for second show"]