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  • Committer: Bazaar Package Importer
  • Author(s): Chris Lamb
  • Date: 2010-05-21 07:52:55 UTC
  • mfrom: (1.1.10 upstream) (4.4.7 sid)
  • Revision ID: james.westby@ubuntu.com-20100521075255-i1zpeyc0k8512pd7
Tags: 1.2-1
New upstream stable release.

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tests/modeltests/serializers/models.py
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``QuerySet`` objects to and from "flat" data (i.e. strings).
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"""
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try:
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    from decimal import Decimal
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except ImportError:
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    from django.utils._decimal import Decimal # Python 2.3 fallback
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from decimal import Decimal
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from django.db import models
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class Category(models.Model):
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# database since the data was serialized (we'll simulate that below).
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>>> for obj in serializers.deserialize("xml", xml):
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...     print obj
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<DeserializedObject: Poker has no place on ESPN>
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<DeserializedObject: Time to reform copyright>
 
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<DeserializedObject: serializers.Article(pk=1)>
 
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<DeserializedObject: serializers.Article(pk=2)>
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# Deserializing data with different field values doesn't change anything in the
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# database until we call save():
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>>> json = serializers.serialize("json", Article.objects.all())
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>>> for obj in serializers.deserialize("json", json):
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...     print obj
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<DeserializedObject: Poker has no place on television>
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<DeserializedObject: Time to reform copyright>
 
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<DeserializedObject: serializers.Article(pk=1)>
 
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<DeserializedObject: serializers.Article(pk=2)>
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>>> json = json.replace("Poker has no place on television", "Just kidding; I love TV poker")
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>>> for obj in serializers.deserialize("json", json):
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>>> for obj in serializers.deserialize("json", json):
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...     print obj
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<DeserializedObject: Profile of Joe>
 
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<DeserializedObject: serializers.AuthorProfile(pk=1)>
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# Objects ids can be referenced before they are defined in the serialization data
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# However, the deserialization process will need to be contained within a transaction
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>>> obj = list(serializers.deserialize("json", serialized))[0]
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>>> print obj
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<DeserializedObject: Soslan Djanaev (1) playing for Spartak Moskva>
 
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<DeserializedObject: serializers.Player(pk=1)>
 
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# Regression for #12524 -- dates before 1000AD get prefixed 0's on the year
 
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>>> a = Article.objects.create(
 
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...     pk=4,
 
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...     author = jane,
 
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...     headline = "Nobody remembers the early years",
 
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...     pub_date = datetime(1, 2, 3, 4, 5, 6))
 
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>>> serialized = serializers.serialize("json", [a])
 
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>>> print serialized
 
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[{"pk": 4, "model": "serializers.article", "fields": {"headline": "Nobody remembers the early years", "pub_date": "0001-02-03 04:05:06", "categories": [], "author": 2}}]
 
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>>> obj = list(serializers.deserialize("json", serialized))[0]
 
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>>> print obj.object.pub_date
 
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0001-02-03 04:05:06
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"""}
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>>> obs = list(serializers.deserialize("yaml", serialized))
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>>> for i in obs:
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...     print i
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<DeserializedObject: Just kidding; I love TV poker>
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<DeserializedObject: Time to reform copyright>
 
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<DeserializedObject: serializers.Article(pk=1)>
 
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<DeserializedObject: serializers.Article(pk=2)>
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# Custom field with non trivial to string convertion value with YAML serializer
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>>> serialized = serializers.serialize("yaml", Player.objects.all())
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>>> obj = list(serializers.deserialize("yaml", serialized))[0]
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>>> print obj
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<DeserializedObject: Soslan Djanaev (1) playing for Spartak Moskva>
 
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<DeserializedObject: serializers.Player(pk=1)>
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"""