Long integers cause DatabaseError when submitting ModelForm

[Daniil Ryzhkov]

Let's say there is a model:

class TestModel(models.Model):
    test_field = models.IntegerField()

And ModelForm (instread of this step you can just register model in admin):

class TestForm(forms.ModelForm):

    class Meta:
        model = TestModel

And view:

def test_view(request):
    ...
    if form.is_valid():
        ad.save()

When from is submitted Django returns "DatabaseError: current transaction is aborted, commands ignored until end of transaction block" if submitted integer is above 2147483647 (which is database maximum value for integer). This affects both contrib.admin generated form and ModelForm.
This was tested on Django 1.4 with Debian Squeeze and PostgreSQL 9.1 aboard.

[Claude Paroz]

The problem is that the maximum value is database-dependent (See #16747). You can initialize IntegerField with max_value to prevent this error.