CODEWITHSUNDEEP
djangodjango-modelsdjango-views
Abhijeet Gupta
Abhijeet Gupta

Reputation: 57

invalid literal for int() with base 10: with Django

My model : I am getting invalid literal for int() with base 10 in Django it is working in perfectly in the shell 

class Category(models.Model):
    cat_id = models.IntegerField(primary_key=True)
    category_name = models.CharField(max_length=1000)
    created_at = models.DateField(auto_now=True ,max_length=30)
    def __str__(self):
        return self.category_name


class Content(models.Model):
    content_id = models.AutoField(primary_key=True)
    category = models.ForeignKey(Category, on_delete=models.CASCADE)
    content = models.CharField(max_length=5000)
    created_at = models.DateField(auto_now=True)

    def __str__(self):
        return self.content

** my view **

def create_blog(request):
    if request.method == 'POST':
        title = request.POST['title']
        content = request.POST['content']
        category = request.POST['category']

        object_of_category = Category.objects.get(cat_id = (category))

        save_post = Content(category = object_of_category, content =content)

        save_post.save()
        return redirect(create_blog,{'message':'Post created Successfully!'})
    categories = Category.objects.all()
    return render(request ,'admin/create_blog.html', {'categories' : categories})

Upvotes: 0

Views: 164

Answers (3)

kae_screechae
kae_screechae

Reputation: 169

First off, you are attempting to get an id(type Integer) of value category(type String) in the following snippet: object_of_category = Category.objects.get(cat_id = (category))

Also, avoid creating primary key fields unless absolutely necessary as Django does that for you automatically.

Furthermore, Try.. Except blocks are extremely helpful in such situations as they generate StackTraces that show where your errors stem from.

Upvotes: 0

Armin Azhdehnia
Armin Azhdehnia

Reputation: 145

I read your code and I Saw this point in your code:

category = request.POST['category']

you should attention that what you have post it it should be int type

because in your Category model:

cat_id = models.IntegerField(primary_key=True)

is integer type

i think all of your code is ok but before

object_of_category = Category.objects.get(cat_id = (category))

check type of the category by:

type(category)

My suggesstion is that use django.form for preventing these complexities.

Upvotes: 1

Shahid Tariq
Shahid Tariq

Reputation: 931

You don't need to add models.AutoField() yourself, it is added by Django automatically, see here https://docs.djangoproject.com/en/3.0/topics/db/models/#automatic-primary-key-fields

you have to remove your custom ID's in both of the tables and change your get query

from

object_of_category = Category.objects.get(cat_id = (category))

to

object_of_category = Category.objects.get(id=category)

Upvotes: 1

Related Questions