Django未从数据库中过帐值

from django.db import models

class MyModel(models.Model):
    name = models.CharField(max_length=100)
    value = models.IntegerField()

python manage.py makemigrations
python manage.py migrate

from django.shortcuts import render, redirect
from .models import MyModel
from .forms import MyForm

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            form.save()  # 这将保存数据到数据库
            return redirect('success_url')
    else:
        form = MyForm()
    return render(request, 'my_template.html', {'form': form})

from django import forms
from .models import MyModel

class MyForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = ['name', 'value']

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'mydatabase',
        'USER': 'myuser',
        'PASSWORD': 'mypassword',
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
        },
    },
    'loggers': {
        'django': {
            'handlers': ['console'],
            'level': 'DEBUG',
        },
    },
}