Add Django-like QuerySet Proxies and more exceptions

[m-bd]

Add Django-like QuerySet Proxies and more exceptions

[iapain]

Exceptions should be django like. +1

[hmarr]

We're trying not to couple ourselves to a specific framework. Despite the obvious API similarities between Django and MongoEngine, we don't want to introduce Django as a dependency of MongoEngine - I know of a few people using MongoEngine in production with other frameworks.

Something that has been mentioned a few times is moving the Django-related code from MongoEngine into a separate 'glue' project that would also provide adaptors for the Django API, raise Django exceptions, (provide a django.db backend?), etc.

There is some great work on Django integration going on in a fork at http://github.com/aparo/mongoengine

Cheers,

Harry

[iapain]

@Harry: your justification makes sense but i still see but point is not Django Exceptions. Currently DoesNotExist Exception needs to be imported everywhere and its not documented well. IMO we should raise Document.DoesNotExit as subclass of DoesNotExist Exception. Idea is to contribute DoesNotExist exception to Document class.

Cheers,
D

[hmarr]

Ah right, yea that makes sense to me.

Harry

[iapain]

Implemented. DoesNotExist and MultipleObjectsReturned now contributes to Document base class. Old version still works so

try:
    Person.objects.get(name='name that doesnot exist')
except Person.DoesNotExist:
    print "catch"`

and

try:
   Person.objects.get(name='name that doesnot exist')
except DoesNotExist:
    print "catch"

Both works

[hmarr]

Cheers, I've merged this in.

[m-bd]

Thank you ! :-)