blocks|key|1424555|text|我最终通过使用底层simplejson序列化程序“手动”实现了我想要的东西来解决这个问题：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1424556|from+django.utils+import+simplejson
json+=+simplejson.dumps(+[{'name':+o.name,
+++++++++++++++++++++++++++'country':+o.country}+for+o+in+objects]+)|code-block|syntax|javascript|1424557|更多的打字，但很有效。|1424558|entityMap^0|9|A|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

I ended up working around this by 'manually' achieving what I wanted using the underlying <code>simplejson</code> serializer:

<pre><code>from django.utils import simplejson
json = simplejson.dumps( [{'name': o.name,
 'country': o.country} for o in objects] )
</code></pre>

A little more typing, but works.

blocks|key|1209864|text|乔希做了什么，但倒退了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1209865|data+=+json.loads(json_string)

for+d+in+data:
++++del+d['pk']
++++del+d['model']

data+=+json.dumps(data)|code-block|syntax|javascript|1209866|这样，以后添加更多字段时，您就不必担心更新代码了。|1209867|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

What Josh did but backwards:

<pre class="lang-py prettyprint-override"><code>data = json.loads(json_string)

for d in data:
 del d['pk']
 del d['model']

data = json.dumps(data)
</code></pre>

this way you don't have to worry about updating the code when adding more fields in the future.

blocks|key|1209767|text|您还可以重写JSON序列化程序，如下所述：Override+Django+Object+Serializer+to+get+rid+of+specified+model|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1209768|from+django.core.serializers.json+import+Serializer,+DjangoJSONEncoder
from+django.utils+import+simplejson

import+logging

class+MySerializer(Serializer):
++++def+end_serialization(self):
++++++++cleaned_objects+=+[]

++++++++for+obj+in+self.objects:
++++++++++++del+obj['pk']
++++++++++++cleaned_objects.append(obj)

++++++++simplejson.dump(cleaned_objects,+self.stream,+cls=DjangoJSONEncoder,+**self.options)|code-block|syntax|javascript|1209769|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/5453237/override-django-object-serializer-to-get-rid-of-specified-model^0|L|1R|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

You may also override JSON serializer as explained here: <a href="https://stackoverflow.com/questions/5453237/override-django-object-serializer-to-get-rid-of-specified-model">Override Django Object Serializer to get rid of specified model</a>

<pre><code>from django.core.serializers.json import Serializer, DjangoJSONEncoder
from django.utils import simplejson

import logging

class MySerializer(Serializer):
 def end_serialization(self):
 cleaned_objects = []

 for obj in self.objects:
 del obj['pk']
 cleaned_objects.append(obj)

 simplejson.dump(cleaned_objects, self.stream, cls=DjangoJSONEncoder, **self.options)
</code></pre>

blocks|key|1209723|text|尽管这是一个古老的问题，但其他人很可能会在谷歌搜索中找到它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1209724|不幸的是，django序列化程序提供的定制与您定义的相当少。我的解决方案是将django的序列化内容复制到我自己的项目中，然后进行一些小的更改。这不是很理想，但它可以完成工作。具体地说，为了删除pk，start_object(self，obj)中有一行：|1209725|self.xml.startElement("object",+{
++++++++"pk"++++:+smart_unicode(obj._get_pk_val()),
++++++++"model"+:+smart_unicode(obj._meta),
++++})|code-block|syntax|javascript|1209726|删除"pk“行应该可以修复它。这是一个有点肮脏的技巧，因为如果他们以后对此进行改进，可能需要对您的视图进行一些更改，但对我来说，这是绕过这些限制的最简单的方法。|1209727|希望这对某些人有帮助。|1209728|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Although this is an old question, someone else will probably come up with it on a Google search. 

Unfortunately the django serializer offers fairly little customization like what you defined. My solution, if you know you will be using a lot of serialization for your project, was simply to copy django's serialization stuff over to my own project and make some small changes. This isn't ideal, but it does the job. Specifically, to remove the pk's, there is a line in start_object(self, obj):

<pre><code>self.xml.startElement("object", {
 "pk" : smart_unicode(obj._get_pk_val()),
 "model" : smart_unicode(obj._meta),
 })
</code></pre>

Removing the "pk" line should fix it. It's a somewhat dirty hack, since if they improve this later on it may require some changes to your views, but for me this was the easiest way around the limitations.

Hope this helps someone.

blocks|key|1209906|text|我也有同样的问题，所以我创建了自己的Serializer，继承了Django的序列化程序。我只想要字段的数据，所以我重写了方法get_dump_object，并添加了PK字段。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1209907|from+django.core.serializers.json+import+Serializer


class+JSONSerializer(Serializer):
++++def+get_dump_object(self,+obj):
++++++++self._current[obj._meta.pk.name]+=+obj._get_pk_val()
++++++++return+self._current|code-block|syntax|javascript|1209908|并呼叫：|1209909|output+=+JSONSerializer().serialize(queryset)|1209910|entityMap^0|I|A|1R|F|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

I had the same problem, so I created my own <code>Serializer</code>, inheritance from Serializer from Django.
I'd like only field's data, so I overwrite the method <code>get_dump_object</code>, and added the PK field.

<pre><code>from django.core.serializers.json import Serializer


class JSONSerializer(Serializer):
 def get_dump_object(self, obj):
 self._current[obj._meta.pk.name] = obj._get_pk_val()
 return self._current
</code></pre>

And call:

<pre><code>output = JSONSerializer().serialize(queryset)
</code></pre>

blocks|key|1424704|text|丑陋的(但有效的)方式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1424705|data_tmp+=+data.split('{')
#Gets+all+the+data+after+fields
response+=+"[{"%2Bdata_tmp[2].replace("}}","}",1)|code-block|syntax|javascript|1424706|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The ugly (but working) way : 

<pre><code>data_tmp = data.split('{')
#Gets all the data after fields
response = "[{"+data_tmp[2].replace("}}","}",1)
</code></pre>

blocks|key|1209579|text|我们不会浪费时间去“清理”PK，当我们产生一个JSON记录时，PK就在那里，如果用户愿意的话，可以忽略它。他们不能对信息做任何事情，所以它就是杂乱的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1209580|我们的web服务接口都不允许任何人向我们提供PK。我们在其他字段上进行POST、PUT和DELETE搜索，但不是PK。|1209581|然而，HTML总是显示URL的PK。它允许人们将页面添加到书签中。|1209582|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

We don't waste our time trying to "sanitize" the PK's. When we produce a JSON record, the PK is there, and the user can ignore it if they want. They can't do anything with the information, so it's just clutter.

None of our web services interfaces allow anyone to provide a PK back to us. We do POST, PUT and DELETE searches on other fields, but not the PK. 

The HTML, however, shows the PK's the URL's all the time. It lets people bookmark the pages.

I'm serializing a bunch of objects with:

<pre><code>json = serializers.serialize("json", objects, fields=('name', 'country'))
</code></pre>

I have not included 'pk' in my fields list, but the produced JSON includes a primary key with each serialized object. I do not want my API to expose primary keys to the general public. 

Short of munging the output JSON, what is the correct way to tell <code>serializers.serialze()</code> to not include the primary key?

Remove pk field from django serialized objects

Django

JSON

我使用以下命令来序列化一组对象：json = serializers.serialize("json", objects, fields=('name', 'country'))我没有在我的字段列表中包含'pk‘，但是生成的JSON包含了每个序列化对象的主键。我不希望我的API向公众公开主键。除了处理输出JSON之外，告诉serializers.serialze()不要包含主键的正确方法是什么？

问从django序列化对象中移除pk字段
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