Web development status

[Julio César Carrascal Urquijo]

Antti Holvikari wrote:
> On 1/22/07, Hasan Aljudy <hasan.aljudy at gmail.com> wrote:
>> I wish we'd have a framework similar to Django, however, come to think
>> of it .. I'd rather use Django than wait for a D clone .. which I don't
>> think can be more powerful since D doesn't have any dynamic reflection
>> capabilities.
> 
> Hmm, hope I'm not missing something here but why would you need
> reflection for that?
> 

Django uses python's reflections capabilities to bind classes to SQL 
tables and build administration interfaces in ways that I don't thing 
even the compile time reflection capabilities of D can implement.

The following code taken from the Django tutorial admin interfaces for 
this Master/Details model with all the features you will expect: 
Pagination, searching, basic validation and form field grouping. Adding 
filtering and custom validation is really easy.

from django.db import models

class Poll(models.Model):
     question = models.CharField(maxlength=200)
     pub_date = models.DateTimeField('date published')

	class Admin:
		fields = (
			(None, {'fields': ('question',)}),
			('Date information', {'fields': ('pub_date',)}),
		)

class Choice(models.Model):
     poll = models.ForeignKey(Poll)
     choice = models.CharField(maxlength=200)
     votes = models.IntegerField()

     class Admin:
         pass

As you can see, Django uses reflection to build all of this 
functionality with just some hints from the programmer.