Getting Objects by id in Django

python django django-views django-urls

11,542

Solution 1

The problem is that 'id' is a string and you need to pass an integer here:

post=Meekme.objects.get(id='id')

It should most likely look like this:

def cribdetail(request, meekme_id):
    post=Meekme.objects.get(id=meekme_id)
    return render_to_response('postdetail.html',{'post':post, 'Meekme':Meekme},context_instance=RequestContext(request))

where meekme_id is an integer that is part of the URL. Your URL configuration should contain:

url(r'^example/(?P<meekme_id>\d+)/$', 'example.views.cribdetail'),

When you visit example/3/, that means Django will call the view cribdetail with the value 3 assigned to meekme_id. See the Django URL documentation for more details.

Solution 2

the error message is saying 'id' is integer but you are passing string .

11,542

Author by

picomon

Updated on August 19, 2022

Comments

picomon over 1 year

I'm trying to get data by id in my django app. The problem is that I don't know the kind of id the user will click on. I tried adding the below code in my views but I'm getting this error:

 ValueError at /findme/

 invalid literal for int() with base 10: 'id'

 Request Method:    GET
 Request URL:   http://127.0.0.1:8000/findme/
 Django Version:    1.4
 Exception Type:    ValueError
 Exception Value:   invalid literal for int() with base 10: 'id'

 Exception Location:    C:\Python27\lib\site-packages\django\db\models\fields\__init__.py in get_prep_value, line 537
 Python Executable:     C:\Python27\python.exe
  Python Version:   2.7.3

Views

from meebapp.models import Meekme

def cribdetail(request):
    post=Meekme.objects.get(id='id')
    return render_to_response('postdetail.html',{'post':post, 'Meekme':Meekme},context_instance=RequestContext(request))

What I'm I missing?

picomon almost 12 years

After following your instruction, I'm getting this error: NoReverseMatch at /search/ Reverse for 'meebapp.views.cribdetail' with arguments '()' and keyword arguments '{}' not found. Urlconf: url(r'^cribme/(?P<meekme_id>\d+)/$', 'meebapp.views.cribdetail'), In Models: def get_absolute_url(self): return ('meebapp.views.cribdetail', (),[str(self.id)]) In Template: <a href="{% url meebapp.views.cribdetail %}"> What I'm I missing?
Simeon Visser almost 12 years

@picomon: In that case you're giving incorrect parameters to the reverse function of Django. You need to make sure that the name and values for reversing a URL are correct and that there is indeed a URL with that name and those parameters.
picomon almost 12 years

Can I input id alone in the parameters? BTW: Do check my edit in the above comment.
Nilesh almost 12 years

You have to pass id as integer. Simeon write for example only.
Simeon Visser almost 12 years

Change the get_absolute_url to the following: return ('meebapp.views.cribdetail', (), {'meekme_id': self.id}). Also, in the template you need to add the id, so it would be {% url meebapp.views.cribdetail post.id %}.
picomon almost 12 years

another error: NoReverseMatch at /search/ Reverse for 'meebapp.views.cribdetail' with arguments '('',)' and keyword arguments '{}' not found
picomon almost 12 years

kindly check out my question here: stackoverflow.com/questions/11264655/…