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  1. Mongoid
  2. MONGOID-862

accepts_nested_attributes_for for embedded docs is annoying

    • Type: Icon: Task Task
    • Resolution: Done
    • 2.3.1
    • Affects Version/s: None
    • Component/s: None

      Right now I've got a backbone app returning json for a document. The json I get back is basically what I want fed directly into mongo. There is currently only 2 ways to do it and both are painful.

      This first, just use the collection I get back from mongoid, convert the string ids to BSON ids and do a set:

      pages = JSON.parse(params['model'])['pages'].each do |p|
      p['_id'] = BSON::ObjectId(p['_id'])
      p['items'].each

      { |i| i['_id'] = BSON::ObjectId(i['_id']) }

      end

      @form.collection.update(

      {"_id" => BSON::ObjectId(params["id"])}

      , {"$set" => {"pages" => pages}})

      The second way is to use accepts_nested_attributes_for for my embedded docs and convert the hash keys to be "#

      {key}_attributes" and do an update_attributes on the doc:

      new_params = JSON.parse(params[:model])
      new_params['pages'].each { |p| p['items_attributes'] = p.delete('items') }
      new_params['pages_attributes'] = new_params.delete('pages')
      @form.update_attributes(new_params)

      The second case is shorter but doesn't really seem any cleaner. Why do I have to rename the keys to be "#{key}

      _attributes"? I know that this how it works for AR but we're not dealing with relations on embedded docs. It would be nice for mongoid to be smart enough to know that I want to update my entire doc when I pass update_attributes a hash that represents the root doc containing all the subdocs.

            Assignee:
            durran Durran Jordan
            Reporter:
            jonathan jonathanh
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              Created:
              Updated:
              Resolved: