CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-4database-designarchitecturepolymorphism
Carterdea
Carterdea

Reputation: 61

Rails Polymorphic Model for 1 Database Record

I am working on a rails app for a charity who takes crowd-funded donations for Families, Fundraisers, and for the charity itself. Right now donations are setup to belong to Families & Fundraisers using Polymorphism, but I'm not sure how to take money for the charity.

Should I make a model for donations to the charity? That feels like bad architecture to me because it will be a single database record.

What is the best way to take donations for the charity?

Here is my donation model:

#app/models/donation.rb
class Donation < ActiveRecord::Base
  has_secure_token
  belongs_to :family, via: :recipient
  belongs_to :fundraiser, via: :recipient

Thanks!

Upvotes: 0

Views: 72

Answers (1)

MZaragoza
MZaragoza

Reputation: 10111

in your migration you should do something like 

class Donations < ActiveRecord::Migration
  def change
    create_table :donations do |t|
      ...
      t.integer :something_id # this is the record id of something 
      t.string :something_type # this is the model name like family or fundraiser

      t.timestamps
    end
  end
end

Now in your model 

class Donation < ActiveRecord::Base
  belongs_to :something, polymorphic: true
end

# repeat this in all the models that can use this polymorphic association 
class Family < ActiveRecord::Base
  has_many :donations, as: :something
end

I hope that this has helped.

Happy Hacking

Upvotes: 1

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