CODEWITHSUNDEEP
ruby-on-railsmongoid
Antonin Mrchd
Antonin Mrchd

Reputation: 666

Rails mongoid - Access User with user_id present in another table

I have an app with many users, that can create many travels, and they can invite friends to participate to the travel.

Here are the models :

class Travel
  include Mongoid::Document
  include Mongoid::Timestamps

  belongs_to :user

  embeds_many :participants
  accepts_nested_attributes_for :participants
end

class Participant
  include Mongoid::Document
  include Mongoid::Timestamps

  # relations
  embedded_in :travel, :inverse_of => :participants

end

When I look my DB I have this result for participants : screen DB

It is embedded in travel. Right now, I want to access user, thanks to the user_id that you see in the DB, on the travel page, but I don't know what request I have to write to implement that. I want to access users which are participants.

Does I have to use .where() like : User.where(:id.in => ...) or .find_by() .. ?

Upvotes: 0

Views: 112

Answers (1)

Md. Farhan Memon
Md. Farhan Memon

Reputation: 6121

Since Travel and User are associated (belongs_to), you can call directly..

Travel.last.user

Or

User.where(id: Travel.participants.pluck(:user_id))

Upvotes: 1

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