how do i return an int as the returned object for admin panel

[G Z]

how do I fix this?

class Vm_licenses(models.Model):

   vm_license_id = models.BigIntegerField(primary_key = True, editable = False, db_column = 'vm_license_id')

   license= models.ForeignKey(License,  on_delete = models.PROTECT)

   vm= models.ForeignKey(Vm,  on_delete = models.PROTECT)

   class Meta:

      managed = False

      db_table = 'vm_licenses'

   

   def __unicode__(self):  # Python 3: def __str__(self):

      return self.vm_id

Request Method:	GET
Request URL:	http://127.0.0.1:8000/admin/portal/vm_licenses/
Django Version:	1.6.5
Exception Type:	AttributeError
Exception Value:	'int' object has no attribute 'encode'
Exception Location:	/usr/local/lib/python2.7/dist-packages/django/db/models/base.py in __str__, line 430
Python Executable:	/usr/bin/python
Python Version:	2.7.5

[Tom Evans]

The __unicode__ method must return a unicode string.

The function unicode(), or string formatting would suffice.

Cheers

Tom

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[Aeh. ABID]

In your def __unicode__ convert the current returned int to string :

 def __unicode__(self):  # Python 3: def __str__(self):

      return str(self.vm_id)

credit to https://janetalkscode.wordpress.com/2013/09/28/django-long-object-has-no-attribute-encode/comment-page-1/

[Tom Evans]

On Mon, Jul 14, 2014 at 11:31 PM, Aeh. ABID <aeh....@gmail.com> wrote:
>
> In your def __unicode__ convert the current returned int to string :
>
>> def __unicode__(self): # Python 3: def __str__(self):
>> return str(self.vm_id)
>

Stop, you are making my eyes bleed!

It is really fairly important that you return a unicode object from
the __unicode__ method and not a str object.
__unicode__ is the method that python calls when python wants to turn
your object in to a unicode representation of it. The method takes no
arguments, and the ONLY post-condition is that it returns a unicode
object - it should not be too taxing to get it right!

If you do not return a unicode object, strange and unpredictable
things can happen (like AttributeError("'int' object has no attribute
'encode'")).

Cheers

Tom

[monoBOT]

The __unicode__ method is meant to return a human readable representation of the model object as a unicode.

EG:

def __unicode__(self):

    return u'%(id)s' % {'id': self.vm__id}

althought not very human readable is a correct __unicode__ method.

The reason behind you wanting a int number in the __unicode__ method is strange for me/us.
Also, creating a method just to get the object id doesnt seem too bright.

why not just object.vm__id ?

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