Hi Guys,

I am trying to figure out what is happening here.

I have the following documents:

class X
include Mongoid::Document
accepts_nested_attributes_for :ys
embeds_many :ys
field :text, as: String
end

class Y
include Mongoid::Document
accepts_nested_attributes_for :zs
embeds_many :zs
embedded_in :x
field :text, as: String
end

class Z
include Mongoid::Document
embedded_in :y
field :text, as: String
end

When I try to create a new Y and a new Z (into an existing Y) using nested attributes, it doesn't save.

require "spec_helper"

describe X do
it "should save" do
z = Z.new text: "Z"
y = Y.new text: "Y", zs: [z]
x = X.create! text: "X", ys: [y]

x.reload

x.ys.should have(1).item
x.ys[0].zs.should have(1).item

x.update_attributes({
ys_attributes: {
a: {id: y.id, zs_attributes: {c:

{text: "New Z"}

}},
b:

{text: "New Y"}

}
})

x.ys.should have(2).items
x.ys[0].zs.should have(2).items

x.reload

x.ys.should have(2).items
x.ys[0].zs.should have(2).items
end
end

After the second reload the test fails:

Failures:

1) X should save
Failure/Error: x.ys.should have(2).items
expected 2 items, got 1

1. ./spec/models/x_spec.rb:26:in `block (2 levels) in <top (required)>'

Is this a bug? Am I doing something wrong?

Thanks!