Ignore the namespace comment.
On Friday, October 11, 2013 5:43:43 PM UTC+8, timh wrote:
>
> As I said
>
> I would use a metaclass to create classes on demand.
> However you would need to use some name mangling scheme so that each users
> class name was garunteed to be unique otherwise
> you could end up in all sorts of mess.
>
> Alternately specify an entity name as a property of the class (or use it
> to define the namespace), and use the same class for all users, along with
> their own custom properties.
>
> this would be a much simpler approach.
>
> Tim
>
>
> On Friday, October 11, 2013 3:50:54 PM UTC+8, Mitul Golakiya wrote:
>>
>> Thanks Tim Hoffman,
>>
>> We are creating one app in which, on admin side User can create his own
>> entities and can create fields in that entity.
>> So as the documentation I have read, to store any entity in datastore
>> which have dynamic fields, we have to use ndb or Expando.
>>
>> But I am getting entity name at runtime, so I am not able to define
>> static classes for my entities.
>> So how can I create dynamic entities with dynamic field support ??
>>
>>
>> On Friday, October 11, 2013 11:24:49 AM UTC+5:30, timh 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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