Dynamic Django forms and filters using JSON schema
Project description
Capybara forms
Dynamic Django forms and filters using JSON schema.
If you have 2 models: Category and Entry. And some entry features depends on it's category. Using this library, you will obtain easy-to-configure schema with form, filter and entry fields generators. Also, it can work with model fields.
Quick start
1. Define your models
from django.db import models
from capybara_forms.models import CapybaraFormsCategory, CapybaraFormsModel
class Category(CapybaraFormsCategory):
title = models.CharField(max_length=100)
class Advert(CapybaraFormsModel(Category)):
# Global model fields
title = models.CharField(max_length=100)
price = models.PositiveSmallIntegerField()
# Rest fields will be stored in JSON 'data' field
2. Write schema for category 'Cats'
[
{
"name": "breed",
"type": "string",
"required": true,
"display_name": "Breed",
"placeholder": "Enter breed of your cat"
},
{
"name": "year",
"type": "number",
"required": true,
"max_value": 2020,
"min_value": 1980,
"placeholder": "Enter birth year of your cat",
"display_name": "Birth year"
},
{
"name": "weight",
"type": "number",
"placeholder": "Enter the weight of your cat",
"display_name": "Weight"
},
{
"name": "height",
"type": "number",
"placeholder": "Height (only placeholder, without display name)"
},
{
"type": "color",
"display_name": "Cat's color"
},
{
"name": "name",
"type": "string",
"placeholder": "Enter cat nickname",
"display_name": "Name"
},
{
"name": "vaccinated",
"type": "checkbox",
"display_name": "is vaccinated"
}
]
3. Create form. It's a basic rendering object
from django import forms
from capybara_forms.forms import CapybaraFormsModelForm
from .models import Advert
class AdvertForm(CapybaraFormsModelForm):
# This fields from model will be rendered using form.render_form
fields_in_model = ['title', 'price']
# For custom placeholder
title = forms.CharField(widget=forms.TextInput(attrs={'placeholder': 'Enter title'}))
class Meta:
model = Advert
fields = ('title', 'price')
4. Use this form in your view
from django.shortcuts import render, get_object_or_404, redirect
from .models import Category
from .forms import AdvertForm
def add(request, category_id):
category = get_object_or_404(Category, pk=category_id)
if request.method == 'POST':
form = AdvertForm(category, request.POST.dict())
if form.is_valid():
form.save()
return redirect('/{0}/'.format(category_id))
else:
form = AdvertForm(category)
return render(request, 'add.html', {
'form': form,
})
5. Render form in your template. Note, that library uses parsley for validation. All dependencies listed below
<form method="POST" data-parsley-validate>
{% csrf_token %}
{{ form.render_form | safe }}
<button type="submit">Submit</button>
</form>
Result form:
Result filter, with similar schema, plus some in-form configuration:
Dependencies
- Django
- jQuery (version 3.3.1 included)
- JSON editor (version 5.9.6 included)
- parsley (version 2.8.1 included)
Documentation and full example
See readthedocs for API, advanced usage cases, parameters definition and more information
See example project for all features, used in worked application
Slogan
With goal to simplify, with love to capybaras
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