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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
It seems that Model#becomes method changes an object id. I have this problem after I upgraded mongoin in my app to v3.0.9.
My quick fix for this issue is:
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diff --git a/lib/mongoid/document.rb b/lib/mongoid/document.rb
index 42480cd..12ebff0 100644
--- a/lib/mongoid/document.rb
+++ b/lib/mongoid/document.rb
@@ -218,6 +218,7 @@ module Mongoid
raise ArgumentError, "A class which includes Mongoid::Document is expected"
end
became = klass.new(as_document.__deep_copy__)
+ became._id = self._id
became.instance_variable_set(:@changed_attributes, changed_attributes)
became.instance_variable_set(:@errors, errors)
became.instance_variable_set(:@new_record, new_record?)
diff --git a/spec/mongoid/document_spec.rb b/spec/mongoid/document_spec.rb
index 3f0f259..2fc918e 100644
--- a/spec/mongoid/document_spec.rb
+++ b/spec/mongoid/document_spec.rb
@@ -920,6 +920,10 @@ describe Mongoid::Document do
it "copies the state" do
became.should be_persisted
end
+
+ it "does not change an id" do
+ became.id.should == obj.id
+ end
end
context "when the document is destroyed" do
~
~
In my opinion sth could be broken in the document's constructor, I think _id field is ignored and somehow a new id is generated.