CURD Operation in Django
Creating a Django application that handles
POST
requests from a form containing a dropdown list involves several steps:1. Define the Model (if applicable):
If the dropdown choices are dynamic and come from a database, define a Django model to represent these choices.
2. Create the Form:
Define a Django
Form
or ModelForm
to handle the dropdown field and other form elements.3. Define the View:
The view handles both
GET
and POST
requests.4. Create the Template:
The HTML template displays the form with the dropdown and handles form submission.
5. Configure URLs:
Map the view to a URL in your
urls.py
.Explanation:
- When the page is initially loaded (a
GET
request), an emptyMyForm
instance is created and passed to the template for rendering. - When the form is submitted (a
POST
request), aMyForm
instance is created with therequest.POST
data. form.is_valid()
checks if the submitted data meets the form's validation rules.- If the form is valid,
form.cleaned_data
provides a dictionary of validated form data, including the selected value from the dropdown. - The selected value can then be used to perform further actions, such as filtering database queries or displaying specific content.
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