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Type:
Task
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Resolution: Done
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Affects Version/s: None
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Component/s: None
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None
Hi guys,
Here a tricky issue dealing with nested documents, references and embedded documents.
You can find a zip file containing a sample project illustrating the issue.
I'm Using
Rails v3.0.9
Mongo v1.8.3
Mongoid v2.2.0
Models
- Conversation
- Message
- Text
- Media
- Link
- A Conversation embeds_many Messages (autosave => true)
- A Message has_many Media (autosave => true)
- Text inherit from Message (STI)
- Link inherit from Link (STI)
- A Conversation accept_nested_attributes_for :messages
- A Message accept_nested_attributes_for :medias
In rails console, let's do some testing :
ruby-1.9.2-p180 :001 > c = Conversation.new({:messages_attributes => [{'_type' => 'Text', :content => 'content', :medias_attributes => [{'_type' => 'Link', :url => 'google.com'}]}]}) => #<Conversation _id: 4e65c7275d156d0129000001, _type: nil, created_at: nil, updated_at: nil, title: nil> ruby-1.9.2-p180 :002 > c.messages => [#<Message _id: 4e65c7275d156d0129000002, _type: "Text", created_at: nil, updated_at: nil, content: "content">] ruby-1.9.2-p180 :003 > c.messages.first.medias => [#<Media _id: 4e65c7275d156d0129000003, _type: "Link", created_at: nil, updated_at: nil, message_id: BSON::ObjectId('4e65c7275d156d0129000002'), url: "google.com">] ruby-1.9.2-p180 :004 > c.save => true ruby-1.9.2-p180 :005 > c.reload => #<Conversation _id: 4e65c7275d156d0129000001, _type: nil, created_at: 2011-09-06 07:09:33 UTC, updated_at: 2011-09-06 07:09:33 UTC, title: nil> ruby-1.9.2-p180 :006 > c.messages => [#<Text _id: 4e65c7275d156d0129000002, _type: "Text", created_at: nil, updated_at: nil, content: "content">] ruby-1.9.2-p180 :007 > c.messages.first.medias => [] #Should not be empty
Now if you change the relations between Conversation <=> Message as follow :
- A Conversation has_many Messages
It works perfectly.
Some rails console testing also :
ruby-1.9.2-p180 :002 > c = Conversation.new({:messages_attributes => [{'_type' => 'Text', :content => 'content', :medias_attributes => [{'_type' => 'Link', :url => 'google.com'}]}]}) => #<Conversation _id: 4e65c6bb5d156d011a000004, _type: nil, created_at: nil, updated_at: nil, title: nil> ruby-1.9.2-p180 :003 > c.messages => [#<Message _id: 4e65c6bb5d156d011a000005, _type: "Text", created_at: nil, updated_at: nil, conversation_id: BSON::ObjectId('4e65c6bb5d156d011a000004'), content: "content">] ruby-1.9.2-p180 :004 > c.messages.first.medias => [#<Media _id: 4e65c6bb5d156d011a000006, _type: "Link", created_at: nil, updated_at: nil, message_id: BSON::ObjectId('4e65c6bb5d156d011a000005'), url: "google.com">] ruby-1.9.2-p180 :005 > c.save => true ruby-1.9.2-p180 :006 > c.reload => #<Conversation _id: 4e65c6bb5d156d011a000004, _type: nil, created_at: 2011-09-06 07:07:54 UTC, updated_at: 2011-09-06 07:07:54 UTC, title: nil> ruby-1.9.2-p180 :007 > c.messages => [#<Text _id: 4e65c6bb5d156d011a000005, _type: "Text", created_at: 2011-09-06 07:07:54 UTC, updated_at: 2011-09-06 07:07:54 UTC, conversation_id: BSON::ObjectId('4e65c6bb5d156d011a000004'), content: "content">] ruby-1.9.2-p180 :008 > c.messages.first.medias => [#<Link _id: 4e65c6bb5d156d011a000006, _type: "Link", created_at: 2011-09-06 07:07:54 UTC, updated_at: 2011-09-06 07:07:54 UTC, message_id: BSON::ObjectId('4e65c6bb5d156d011a000005'), url: "google.com">]
Here is the link to the sample zip file : http://d.pr/oMUc