Cannot display value on web page by using Django - django

Question

I want to display some values which is queried out from mysql in the method within views.py on the web page, but I cannot see that on the web page. see my method in views.py:
def update_delete_customer(request, id):
if request.method == 'POST':
print("TODO")
else:
form = CustomerForm()
if id is None:
print("id is None")
return HttpResponseRedirect('AddressTableMaintain/')
print("----------------")
print(id)
customerList = Customer.objects.raw("select * from customers where customer_id = %s", [int(id)])
customer = list(customerList)[0]
print(customer)
form.customerId = customer.customerId
form.first_name = customer.first_name
form.last_name = customer.last_name
print(customer.customerId)
print(customer.first_name)
print(customer.last_name)
return render(request, 'EditCustomer.html', {'form': form})
return HttpResponseRedirect('AddressTableMaintain/')
I can see the output customer id, first name, last name that are generated by the print function in the console.
Below is the contents of my EditCustomer.html:
{% extends 'base.html' %}
{% block title %} Remove or Update customer {% endblock %}
{% block content %}
<style>
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
</style>
<form action="{% url 'RU_customer_post' %}" method="post">
{% csrf_token %}
<table width="50%" align="center">
<tr>
<td>Customer ID</td>
<td>
{{ form.customer_id }}
</td>
</tr>
<tr>
<td>First Name</td>
<td>
{{ form.first_name }}
</td>
</tr>
<tr>
<td>Last Name</td>
<td>
{{ form.last_name }}
</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value = "OK" /></td>
</tr>
</table>
</form>
{% endblock %}
My expected result is the value should be bound to web page and displayed, but the actual effect is like below:
So, can someone tell me why and how to fix it?

Answer 1

Replace:
form = CustomerForm()
if id is None:
print("id is None")
return HttpResponseRedirect('AddressTableMaintain/')
print("----------------")
print(id)
customerList = Customer.objects.raw("select * from customers where customer_id = %s", [int(id)])
customer = list(customerList)[0]
with:
if id is None:
print("id is None")
return HttpResponseRedirect('AddressTableMaintain/')
print("----------------")
print(id)
customerList = Customer.objects.raw("select * from customers where customer_id = %s", [int(id)])
form = CustomerForm(list(customerList)[0])
Possibly related: Why are you using raw SQL instead of the much simpler:
customer = Customer.objects.get(pk=id)
which would return the one customer that you are looking for?