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  1. Mongoid
  2. MONGOID-1846

Using find() in many to many relation raises Mongoid::Errors::DocumentNotFound even when the document is there

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    • Type: Icon: Task Task
    • Resolution: Done
    • 2.4.8
    • Affects Version/s: None
    • Component/s: None

      Here's the rough sketch of the models:

      User Model:

      class User
  include Mongoid::Document
  has_and_belongs_to_many :projects
end

      Project Model

      class Project
  include Mongoid::Document
  has_and_belongs_to_many :users
  field :name, :type => String
end

      Here's what I encountered in the console:

      1.9.3p0 :005 > User.first.projects.first
 => #<Project _id: 4f6ac24aa902431e23000001, _type: nil, user_ids: [BSON::ObjectId('4f6ac24aa902431e2300000a'), BSON::ObjectId('4f6ac24aa902431e2300000b')], name: "Seed Project"> 

1.9.3p0 :006 > Project.first
 => #<Project _id: 4f6ac24aa902431e23000001, _type: nil, user_ids: [BSON::ObjectId('4f6ac24aa902431e2300000a'), BSON::ObjectId('4f6ac24aa902431e2300000b')], name: "Seed Project"> 

1.9.3p0 :007 > Project.find(Project.first.id)
 => #<Project _id: 4f6ac24aa902431e23000001, _type: nil, user_ids: [BSON::ObjectId('4f6ac24aa902431e2300000a'), BSON::ObjectId('4f6ac24aa902431e2300000b')], name: "Seed Project"> 

1.9.3p0 :008 > User.first.projects.find(Project.first.id)
Mongoid::Errors::DocumentNotFound: Document not found for class Project with id(s) 4f6ac24aa902431e23000001.
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:151:in `block in execute_or_raise'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:149:in `tap'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:149:in `execute_or_raise'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:129:in `find'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/relations/referenced/many.rb:249:in `find'
	from (irb):8
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/railties-3.2.2/lib/rails/commands/console.rb:47:in `start'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/railties-3.2.2/lib/rails/commands/console.rb:8:in `start'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/railties-3.2.2/lib/rails/commands.rb:41:in `<top (required)>'
	from script/rails:6:in `require'
	from script/rails:6:in `<main>'

      And yet...

      1.9.3p0 :09 > User.first.projects.first == Project.find(Project.first.id)
 => true

      Aside from passing the BSON::ObjectId, I also tried passing the normal string id but the result is the same:

      1.9.3p0 :10 > Project.find("4f6ac24aa902431e23000001")
 => #<Project _id: 4f6ac24aa902431e23000001, _type: nil, user_ids: [BSON::ObjectId('4f6ac24aa902431e2300000a'), BSON::ObjectId('4f6ac24aa902431e2300000b')], name: "Seed Project"> 

1.9.3p0 :11 > User.first.projects.find("4f6ac24aa902431e23000001")
Mongoid::Errors::DocumentNotFound: Document not found for class Project with id(s) 4f6ac24aa902431e23000001.
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:151:in `block in execute_or_raise'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:149:in `tap'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:149:in `execute_or_raise'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/criterion/inclusion.rb:129:in `find'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/mongoid-2.4.6/lib/mongoid/relations/referenced/many.rb:249:in `find'
	from (irb):10
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/railties-3.2.2/lib/rails/commands/console.rb:47:in `start'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/railties-3.2.2/lib/rails/commands/console.rb:8:in `start'
	from /Users/marcrendlignacio/.rvm/gems/ruby-1.9.3-p0@storymapper/gems/railties-3.2.2/lib/rails/commands.rb:41:in `<top (required)>'
	from script/rails:6:in `require'
	from script/rails:6:in `<main>'

      Already executed rake db:mongoid:objectid_convert before this, but still receiving the same results.

      I don't know if this is a bug or I missed something else, but I kind of expect that it will do same behavior as Project.find would.

            Assignee:
            Unassigned Unassigned
            Reporter:
            padi padi
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              Created:
              Updated:
              Resolved: