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Type:
Task
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Resolution: Done
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Labels:None
Greetings,
I am writing up a "history" of actions taken for a piece of data. During this process I found that some polymorphic classes were not being properly searched for, possibly due to the initial base class not being aware of future object's relationships and not "massaging" the comparing value properly.
I am using the master branch of a few days ago and this is not critical as it can be worked around.
I've included test code that demonstrates the problem. I have simplified the code, as this was from a much larger code base.
require 'mongoid' Mongoid.load!('config/mongoid.yml', :test) # A user of a system class User include Mongoid::Document field :email, :type => String end # the big container object class Book include Mongoid::Document embeds_many :notes, :class_name => 'Note', :inverse_of => :book end # the template "note" class Note include Mongoid::Document embedded_in :book, :class_name => 'Book', :inverse_of => :notes end # a note that belongs to a user class UserNote < Note belongs_to :user, :class_name => 'User', :inverse_of => nil field :bar, :type => String end user = User.new email: 'joe@example.com' # set the book up book = Book.new note = UserNote.new({ :user => user, :bar => 'abc', }) book.notes << note # I was really expecting this code to work :) <============================ notes = book.notes.where(:user => user).all.to_a puts "testing: book.notes.where(:user => user)" if notes.count > 0 puts "Does work\n\n" else puts "Does NOT work\n\n" end puts "testing: book.notes.where(:user_id => user.id)" notes = book.notes.where(:user_id => user.id).all.to_a if notes.count > 0 puts "Does work\n\n" else puts "Does NOT work\n\n" end puts "Basic search test; to make sure where works" notes = book.notes.where(:bar => 'abc').all.to_a if notes.count > 0 puts "Finding :bar = abc does work" end
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[deployer@local current]$ bundle exec ruby test.rb testing: book.notes.where(:user => user) Does NOT work testing: book.notes.where(:user_id => user.id) Does work Basic search test; to make sure where works Finding :bar = abc does work
One possible solution is that as each new inherited object comes into existence, the relationships feed back into the parent's relations. Sounds a bit messy 
class UserNote < Note # this would, update Note.relations with a note that :user should be searched for as { user_id: => user.id } belongs_to :user, :class_name => 'User', :inverse_of => nil end
Thank you!!!
-daniel