In order for us to help debug, you need to give us a few more
details. If we don't know what's broken, we can't help you fix
it :-) Remember, we know a little bit about App Engine, but nothing
about your application or how it works. You'll get the best results if
you include at least these two details:
1. what you expect to see when it works.
2. what you are seeing instead.
Good luck!
On Nov 7, 1:56 pm, Hans <[EMAIL PROTECTED]> wrote:
> Thats it, I don't get a clear error.
>
> The Django encoder wouldn't encode my custom business objects - that's
> why I thought I had to roll my own.
>
> Hans
>
> On Nov 7, 6:43 pm, Anthony <[EMAIL PROTECTED]> wrote:
>
> > Hard to tell without knowing what sort of errors are you getting..
>
> > But, have you tried the included Django JSON encoder:
>
> > from django.utils import simplejson
>
> > object = simplejson.loads("{JSON}")
> > string = simplejson.dumps(object)
>
> > On Nov 7, 3:22 pm, Hans <[EMAIL PROTECTED]> wrote:
>
> > > I have the following code to convert common objects to JSON. On my dev
> > > box it works fine, but on production is simply does not and I can't
> > > really debug. Any suggestions?
>
> > > import types
> > > class TestObject():
> > > def __init__(self):
> > > self.dict = {'test class':'jaja'}
> > > self.name = 'testobject'
> > > self.lijst = ['ss','s','jaj']
> > > self.bool = True
>
> > > class JsonEncoder():
> > > ATTRIBUTES_TO_SKIP = ['__doc__','__module__']
>
> > > @staticmethod
> > > def encode(obj):
> > > return JsonEncoder._encode(obj, type(obj))
>
> > > @staticmethod
> > > def _encode(obj,type,baseNr = 0):
> > > typeCaseSwitch= {
> > > types.DictType: JsonEncoder.encodeDict
> > > ,types.InstanceType:
> > > JsonEncoder.encodeInstance
> > > ,types.NoneType: JsonEncoder.encodeNone
> > > ,types.StringType: JsonEncoder.encodeStr
> > > ,types.UnicodeType: JsonEncoder.encodeStr
> > > ,types.ListType: JsonEncoder.encodeList
> > > ,types.BooleanType: JsonEncoder.encodeBool
> > > ,types.IntType: JsonEncoder.encodeInt
> > > ,types.TupleType: JsonEncoder.encodeList
> > > }
> > > try:
> > > return typeCaseSwitch[type](obj)
> > > except Exception, inst:
> > > if len(obj.__class__.__bases__) > 0:
> > > baseType = obj.__class__.__bases__[++baseNr]
> > > return JsonEncoder._encode(obj, baseType)
>
> > > @staticmethod
> > > def encodeDict(obj):
> > > result = []
> > > for key in obj:
> > > result.append(JsonEncoder.encode(key) + ':' +
> > > JsonEncoder.encode(obj[key]))
> > > return '{' + ','.join(result) + '}'
>
> > > @staticmethod
> > > def encodeList(obj):
> > > result = []
> > > for item in obj:
> > > result.append(JsonEncoder.encode(item))
> > > return '[' + ','.join(result) + ']' if len(result) > 0 else
> > > '[]'
>
> > > @staticmethod
> > > def encodeBool(obj):
> > > return str(obj).lower()
>
> > > @staticmethod
> > > def encodeInt(obj):
> > > return str(obj)
>
> > > @staticmethod
> > > def encodeStr(obj):
> > > #obj = obj.replace('/', r'\/')
> > > obj = obj.replace('"', r'\"')
> > > obj = obj.replace('\b', r'\b')
> > > obj = obj.replace('\f', r'\f')
> > > obj = obj.replace('\n', r'')
> > > obj = obj.replace('\r', r'')
> > > obj = obj.replace('\t', r'')
> > > return '"' + str(obj).replace('\\','\\\\').replace('\"','\\
> > > \"') + '"'
>
> > > @staticmethod
> > > def encodeNone(obj):
> > > return 'null'
>
> > > @staticmethod
> > > def encodeInstance(obj):
> > > callableAttribs = []
> > > for attrib in dir(obj):
> > > if not callable(getattr(obj, attrib)) and attrib not in
> > > JsonEncoder.ATTRIBUTES_TO_SKIP:
> > > callableAttribs.append('"' + attrib + '":' +
> > > JsonEncoder.encode(getattr(obj, attrib)))
> > > if len(callableAttribs) > 0:
> > > return '{' + ','.join(callableAttribs) + '}'
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