Bootstrap 4 select form field isn't working with django - django

Question

I am new to django and using bootstrap4 form with django. When I use input field text and date it works fine and save data into django admin but if I add Select for categories, it doesn't work and returns following error:
ValueError at /
The view app_budgetlist.views.home didn't return an HttpResponse object. It returned None instead.
I worked for 2 straight days and couldn't figure out what's wrong! Can you help please?
[N.B. Updated the code as #Caleb Goodman told still no luck]
Here is my code:
models.py
from django.db import models
# Create your models here.
class Category(models.Model):
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class MonthlyBudget(models.Model):
category = models.ForeignKey(Category, on_delete=models.CASCADE)
budget_amount = models.DecimalField(max_digits=8, decimal_places=2, blank=True, null=True)
forms.py
from django import forms
from .models import MonthlyBudget
class MonthlyBudgetForm(forms.ModelForm):
class Meta:
model = MonthlyBudget
fields = ['category', 'budget_amount']
view.py
from django.shortcuts import render, redirect
from .models import Category, MonthlyBudget
from .forms import MonthlyBudgetForm
def home(request):
project = MonthlyBudget.objects.all()
categories = Category.objects.all()
if request.method == "POST":
form = MonthlyBudgetForm(request.POST or None)
if form.is_valid():
form.save()
return render(request, 'home.html', {'project':project, 'categories':categories})
else:
return render(request, 'home.html', {'project':project, 'categories':categories})
home.html
<form class="form-inline" method="POST">
{% csrf_token %}
<input type="text" name="budget_amount" class="form-control mb-2 mr-sm-2" id="budget-amount" placeholder="Amount">
<div class="form-group">
<label for="category">Select Category</label>
<select id="category" class="taskCategory" name="category">
<option class="disabled" value="">Choose a category</option>
{% for category in categories %}
<option class="" value="{{ category.name }}" name="{{ category.name }}">{{ category.name }}</option>
{% endfor %}
</select>
</div>
<button type="submit" class="btn btn-primary mb-2">Add Project</button>
</form>
admin.py
from django.contrib import admin
from .models import MonthlyBudget, Category
admin.site.register(MonthlyBudget)
admin.site.register(Category)

Answer 1

You forgot to return a response after you save the form:
def home(request):
project = MonthlyBudget.objects.all()
categories = Category.objects.all()
if request.method == "POST":
form = MonthlyBudgetForm(request.POST or None)
if form.is_valid():
form.save()
return render(request, 'home.html', {'project':project, 'categories':categories})
else:
return render(request, 'home.html', {'project':project, 'categories':categories})