FYI, I do not recommend you use that solution as it registers kind in the
kind_map for all requests used by a given instance. Instead there should be
an option to decode undeclared kinds using an Expando. This feature
actually does exist, though I noticed it was broken when using memcache. I
recommend you file a feature request to support this use case so we can
track a good solution.
On Fri, Oct 11, 2013 at 3:26 AM, Mitul Golakiya <mtl.golak...@gmail.com>wrote:
> Thanks Alftred, It worked...
>
> Thank you so much for you help...
>
>
>
>
> On Friday, October 11, 2013 1:22:22 PM UTC+5:30, Alfred Fuller wrote:
>
>> Thats because you are using 'db' instead of 'ndb'
>>
>>
>> On Fri, Oct 11, 2013 at 12:44 AM, Mitul Golakiya <mtl.go...@gmail.com>wrote:
>>
>>> I have tried this code, but still it is creating entity as class name (*
>>> DynamicEntity*) not as given my custom entity name(*MyCustomEntity*):
>>>
>>> class DynamicEntity(db.Expando):
>>> @classmethod
>>> def _get_kind(cls):
>>> return 'MyCustomEntity'
>>>
>>> newEntity = DynamicEntity()
>>> newEntity.fname = "Test"
>>> newEntity.put()
>>>
>>>
>>>
>>>
>>> On Friday, October 11, 2013 11:39:43 AM UTC+5:30, Alfred Fuller wrote:
>>>
>>>> FYI, the following function should be sufficient to register a dynamic
>>>> kind in the kind_map:
>>>>
>>>> def addExpandoForKind(kind):
>>>> class Dummy(db.Expando):
>>>> @classmethod
>>>> def _get_kind(cls):
>>>> return kind
>>>>
>>>> though it is not a "good" solution :-) (there are all sorts of memory,
>>>> thread and request related issues)
>>>>
>>>>
>>>>
>>>> On Thu, Oct 10, 2013 at 10:54 PM, timh <zute...@gmail.com> wrote:
>>>>
>>>>> You could use metaclasses to create dynamic models, however you
>>>>> would always have to create a matching class (which would register the
>>>>> class to kind map)
>>>>> before you could perform any query.
>>>>>
>>>>> I think you should elaborate more on what you are trying to do, we may
>>>>> be able to suggest an approach which doesn't require you to go this far.
>>>>>
>>>>> Regards
>>>>>
>>>>> Tim
>>>>>
>>>>>
>>>>> On Wednesday, October 9, 2013 9:32:03 PM UTC+8, Mitul Golakiya wrote:
>>>>>>
>>>>>> Hello All,
>>>>>>
>>>>>> We are developing one app on GAE with python.
>>>>>>
>>>>>> We are using datastore.py for querying data from datastore, because
>>>>>> we have to define our entities at runtime. So we can not use db.Model to
>>>>>> define models. And retrieve data by models.
>>>>>>
>>>>>> We have to use "Not Equal" operator to retrieve some data from
>>>>>> datastore.
>>>>>> Suppose, I want to retrieve all Persons, with name is not equal to
>>>>>> "Test".
>>>>>>
>>>>>> Here is my code :
>>>>>>
>>>>>> filerObj = {}
>>>>>>> filterObj["name!="] = "Test"
>>>>>>>
>>>>>>> dbObj = datastore.Query("Person", filterObj)
>>>>>>> dbObj.Run()
>>>>>>> recordsList = dbObj.Get()
>>>>>>>
>>>>>>
>>>>>>
>>>>>> By this code, we are getting empty result.
>>>>>> Any idea about what's wrong ??
>>>>>>
>>>>>> Thanks in Advance...
>>>>>>
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