NoReverseMatch in django

After debugging for a while I found what the error was, but I don't know how to fix it. - I have an urlConf whit the name '`ver_caja`' who receives as argument the id of a caja object, and then call the generic `object_detail`. - The queryset is correct: get all the caja objects correctly. - In the template I have the call: `{% ver_caja caja.id %}` - The object `caja` is correctly received by the template. - I'm using MySQL. The issue is that `caja.id` has value "1L" instead of "1". This `1L` rises the error because the urlconf (`ver_caja`) waits for an integer not a alphanumeric '`<int>L`'. All the info I got in django docs site is this (as an example in a tutorial), and it doesn't help: ``` ... >>> p = Poll(question="What's up?", pub_date=datetime.datetime.now()) # Save the object into the database. You have to call save() explicitly. >>> p.save() # Now it has an ID. Note that this might say "1L" instead of "1", depending # on which database you're using. That's no biggie; it just means your # database backend prefers to return integers as Python long integer # objects. >>> p.id ... ``` So, how could I fix this to receive `caja.id=1` instead of `caja.id=1L`? Thanks in advance. Pedro EDIT: Here you have all the files. template error: Caught an exception while rendering: Reverse for 'ver_caja_chica' with arguments '(1L,)' and keyword arguments '{}' not found. caja/models.py ``` class Caja(models.Model): slug = models.SlugField(blank=True) nombre = models.CharField(max_length=20) saldo = models.DecimalField(max_digits=10, decimal_places=2) detalle = models.TextField(blank=True, null=True) # apertura fechahora_apert = models.DateTimeField(default=datetime.datetime.now, auto_now_add=True) usuario_apert = models.ForeignKey(Usuario, related_name=u'caja_abierta_por', help_text=u'Usuario que realizó la apertura de la caja.') # cierre fechahora_cie = models.DateTimeField(blank=True, null=True) usuario_cie = models.ForeignKey(Usuario, null=True, blank=True, related_name=u'caja_cerrada_por', help_text=u'Usuario que realizó el cierre de la caja.') def __unicode__(self): return u'%s, $%s' % (self.nombre, self.saldo) class Meta: ordering = ['fechahora_apert'] class CajaChica(Caja): dia_caja = models.DateField(default=datetime.date.today, help_text=u'Día al que corresponde esta caja.') cerrada = models.BooleanField(default=False, help_text=u'Si la caja está cerrada no se puede editar.') ``` caja/urls.py ``` cajas_chicas = { 'queryset': CajaChica.objects.all(), } urlpatterns = patterns('', url(r'^$', 'django.views.generic.list_detail.object_list', dict(cajas_chicas, paginate_by=30), name="lista_cajas_chicas"), url(r'^(?P<object_id>\d+)/$', 'django.views.generic.list_detail.object_detail', dict(cajas_chicas, ), name="ver_caja_chica"), ) ``` cajachica_list.html ``` ... <table> {% for obj in object_list %} <tr class="{% cycle 'row1' 'row2' %}"> <td>{{ obj.nombre|capfirst }}</td> <td>{{ obj.fechahora_apert|timesince }}</td> <td>{{ obj.usuario_apert }}</td> <td>{{ obj.saldo }}</td> <td><a href="{% url ver_caja_chica obj.pk %}">Ver / Editar</a></td> </tr> {% endfor %} </table> ... ``` EDIT-2 With a wrong urlconf (at purpose), these are the urls for this app: ``` ... 4. ^caja/$ ^$ 5. ^caja/$ ^(?P<object_id>\d+)/$ ... ``` Maybe the final url is been constructed wrong by django. These urls are inside caja/urls.py and are included by urls.py from the root directory of the project. Some clue?