I have a controller that's creating model objects from XML input.
Something like:
<status-report>
<completed type="boolean">true</completed>
<person>
<name>Scott</name>
</person>
</status-report>
I have two models, StatusReport and Person.
I want to create a new Person iff there is not already one with that
name. Then, link that Person to this StatusReport.
The built-in accept_nested_attributes_for doesn't work for me since it
will always create a new Person unless I provide an id to an existing
one.
I have full control over the XML input. What I don't have is a good
way for it to include the id of an existing Person.
Right now I have a fat controller explicitly looking for a Person,
then doing Person.create! if needed. I'm sure there's a better way.
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