[Fixed]-ValueError: Field 'id' expected a number but got 'Processing'

Just to share the solution that worked with my similar error that been received:
In my case, this same error was received because I was creating the model instant with the fields values directly, without specifying the field name, so always the ID was taking the first one as default (ID=field1).
The problem solved by adding the attributes name as well to the Instant creation.

Was:

model_instant = YourModel(field1, field2,...etc)

Solved by:

model_instant = YourModel(field1 = field1, field2 = field2,...etc)

Do this then follow what been recommended above of 1) deleting the dB file, and 2) delete the migrations then 3) do the makemigrations your_app_name then 4) migrations, then 5) run the server and you should be good to go.

Just delete all the migration files except the init python file the run python manage.py makemigrations then python manage.py migrate

From the migration files, we can find the file starting with (001_initial.py,002_auto.py,003_,004_). In those files replace the default value empty string (default= ”) or django.utils.timezone.now() into integer like (default=1). It might solve the problem.

I was getting a similar error and finally found the cause. Just sharing here in case someone made a similar mistake.

I had defined a custom __init__ method on my model and had by mistake only written one * when passing kwargs to super:

def __init__(self, *args, **kwargs):
    super().init(*args, *kwargs)

This resulted in the error message:

ValueError: Field 'id' expected a number but got 'account'.

account was the first keyword argument I was passing when creating a new instance in a view.
In hindsight, the error message makes sense, but it took me an hour of confused debugging before I noticed my typo.

I got this error when I never added created to the get_or_create

someVariable = "someVariable"

# This will give the error "ValueError: Field 'id' expected a number but got someVariable"

my_model = myModel.objects.get_or_create(someField=someVariable)

It got solved when adding this

# added created

my_model, created = myModel.objects.get_or_create(someField=someVariable)

See this https://docs.djangoproject.com/en/4.0/ref/models/querysets/#get-or-create

I had the same problem with simple CBV like TemplateView or ListView which does not require mandatory parameter. I’m pretty sure the issue comes from the url interpretation. For a simple ListView like

class ProfileList(generic.ListView):
    model = get_user_model()

The url

path('profile_list/dummy', ProfileList.as_view(), name='profile_lv'),

works, whereas the one below, doesn’t, the error: Field ‘id’ expected a number but got ‘profile_lv’ is thrown. Where profile_lv is the name of the url…

path('profile_list', ProfileList.as_view(), name='profile_lv'),

The addition of anything with a slash(/) after the path works?!…

Just do nothing There are two ways :
1)Delete Your all migrations and type in your terminal:python3 manage.py makemigrations <app_name> then python3 manage.py migrate and then runserver.

2)Just opened and changed default value from string type to integer.

In my opinion choose first option because it is safe way.

Thanks

Please Delete your recentally created migrations file then run python manage.py makemigrations and python manage.py migrate. I think your problem going to solve.Please try it now.

Go to migration files and find the name id is where generate, then just replace id with processor or other name or remove it as it define as verbose_name.

`python manage.py makemigrations`
`python manage.py migrate`
`python manage.py runserver`

Unfortunately, I was faced with this problem, but I was forced to create a new Django project from first, to solve this problem. And it was not solved by just deleting migrations files.

I have confronted with similar type of error. My original URL was this one:

v1/unit/

Cleaning the migration files didn’t help me. Fortunately, It just started to work after extending the URL with an additional string:

v1/unit/addProduct/

You can do the following:

1. Clean up your dbase by deleting entries which do not confirm to your model, or putting in values for missing/wrong entries

2. Make sure values in models are blank=False, null=False and defaults given and then rerun the migration

3. Put a condition such as if Table.field != "": or whatever value is causing problem in your serializers

I got the similar error below:

TypeError: Field ‘id’ expected a number but got <Country: USA>.

Because get_country() returns an object to default instead of id as shown below:

# "models.py"

class Country(models.Model):
    name = models.CharField(max_length=20)

    def __str__(self):
        return self.name

    @classmethod
    def get_country(cls): # ↓ ↓ ↓ An object is returned ↓ ↓ ↓
        return Country.objects.get_or_create(id=1, name="USA")[0]

class Shipping(models.Model):
    country = models.ForeignKey(
        Country, # ↓ An object is returned
        default=Country.get_country,
        on_delete=models.CASCADE
    )
    fee = models.DecimalField(max_digits=5, decimal_places=2)

    def __str__(self):
        return str(self.country)

So, I returned id from get_country() as shown below, then the error was solved:

# "models.py"

class Country(models.Model):
    name = models.CharField(max_length=20)

    def __str__(self):
        return self.name

    @classmethod
    def get_country(cls):                                       # ↓ Here
        return Country.objects.get_or_create(id=1, name="USA")[0].id

Be careful, even if changing self.name to str(self.id) as shown below:

# "models.py"

class Country(models.Model):
    name = models.CharField(max_length=20)

    def __str__(self):
        return str(self.id) # Here

    @classmethod
    def get_country(cls):
        return Country.objects.get_or_create(id=1, name="USA")[0]

# ...

Or, even if removing __str__() as shown below:

# "models.py"

class Country(models.Model):
    name = models.CharField(max_length=20)

    # def __str__(self):
    #     return str(self.id)

    @classmethod
    def get_country(cls):
        return Country.objects.get_or_create(id=1, name="USA")[0]

# ...

Then, the error was not solved.

I solved it by deleting the db, migrations and pycache files then run migrations & migrate again.