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    <p>It sounds like what you're asking about involves serializing the data structure of a Django model instance for interoperability. The other posters are correct: if you wanted the serialized form to be used with a python application that can query the database via Django's api, then you would wan to serialize a queryset with one object. If, on the other hand, what you need is a way to re-inflate the model instance somewhere else without touching the database or without using Django, then you have a little bit of work to do.</p> <p>Here's what I do:</p> <p>First, I use <a href="http://deron.meranda.us/python/demjson/" rel="noreferrer"><code>demjson</code></a> for the conversion. It happened to be what I found first, but it might not be the best. My implementation depends on one of its features, but there should be similar ways with other converters.</p> <p>Second, implement a <code>json_equivalent</code> method on all models that you might need serialized. This is a magic method for <code>demjson</code>, but it's probably something you're going to want to think about no matter what implementation you choose. The idea is that you return an object that is directly convertible to <code>json</code> (i.e. an array or dictionary). If you really want to do this automatically:</p> <pre><code>def json_equivalent(self): dictionary = {} for field in self._meta.get_all_field_names() dictionary[field] = self.__getattribute__(field) return dictionary </code></pre> <p>This will not be helpful to you unless you have a completely flat data structure (no <code>ForeignKeys</code>, only numbers and strings in the database, etc.). Otherwise, you should seriously think about the right way to implement this method.</p> <p>Third, call <code>demjson.JSON.encode(instance)</code> and you have what you want.</p>
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    1. POHow do you serialize a model instance in Django?
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    1. USDavid Berger
    1. USDavid Berger
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    1. COI haven't tried the code yet but I just wanted to point out some errors in it. It is instance._meta.get_all_field_names() and __getattribute__ is a function so should have () and not [].
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      1. USJason Christa
    2. COGood points. Chock it up to bad typing.
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      1. USDavid Berger
    3. COin addition to FK, this will not work for datetime fields (unless there is magic in demjson.JSON.encode)
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      1. USSkylar Saveland
 

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