django-rnx

Django template tags and utilities for integrating rnxJS reactive components into Django applications.

Overview

django-rnx provides a collection of Django template tags that make it easy to:

• Include rnxJS library and stylesheets in your templates
• Create reactive state from Django context variables
• Render rnxJS components with Django template variables
• Initialize rnxJS plugins (router, toast, storage)
• Render Django forms as rnxJS components
• Bind Django context data to reactive components

Installation

From PyPI (Coming Soon)

pip install django-rnx

Development Installation

git clone https://github.com/BaryoDev/rnxjs.git
cd rnxjs/packages/django-rnx
pip install -e .

Quick Start

1. Add to Django Apps

Add django_rnx to your Django INSTALLED_APPS:

# settings.py
INSTALLED_APPS = [
    'django.contrib.contenttypes',
    'django.contrib.auth',
    'django_rnx',  # Add this line
    'your_app',
]

2. Load Template Tags

In your Django templates, load the rnx template tags:

{% load rnx %}

3. Include rnxJS Scripts

Include the rnxJS library and Bootstrap CSS in your base template:

{% rnx_scripts cdn=True theme='bootstrap' %}

Options:

• cdn (bool, default: True) - Use CDN links instead of local files
• theme (str, default: 'bootstrap') - Theme to include: 'bootstrap', 'm3', 'plugins', or None

4. Create Reactive State

Pass Django context variables to rnxJS as reactive state:

{% rnx_state user_data 'state' %}

<p>Welcome, <span data-bind="state.name"></span>!</p>

Template Tags Reference

rnx_scripts

Include rnxJS library and stylesheets.

Syntax:

{% rnx_scripts [cdn=True] [theme='bootstrap'] %}

Parameters:

• cdn (bool, optional, default: True) - Use CDN for resources
• theme (str, optional, default: 'bootstrap') - Theme variant: 'bootstrap', 'm3', 'plugins', or None

Example:

{% rnx_scripts cdn=True theme='m3' %}

rnx_state

Create reactive state from Django context data.

Syntax:

{% rnx_state data [var_name='state'] %}

Parameters:

• data - Django context variable to convert to reactive state
• var_name (str, optional, default: 'state') - Name of the global state variable

Example:

{% rnx_state user_data 'appState' %}

<!-- Access reactive state in HTML -->
<span data-bind="appState.name"></span>
<span data-bind="appState.email"></span>

View Example:

def profile(request):
    context = {
        'user_data': {
            'name': 'John Doe',
            'email': '[email protected]',
            'profile': {
                'bio': 'Software Developer',
                'location': 'USA'
            }
        }
    }
    return render(request, 'profile.html', context)

rnx_component

Render rnxJS components with props.

Syntax:

{% rnx_component 'ComponentName' [prop1=value1] [prop2=value2] ... %}

Parameters:

• Component name (string)
• Arbitrary keyword arguments converted to component props
• Snake_case props automatically converted to kebab-case

Features:

• Automatic string escaping for security
• Support for data binding expressions (state.*)
• Boolean attributes without values
• Numeric attribute values without quotes

Examples:

<!-- Button component -->
{% rnx_component 'Button' variant='primary' label='Save' %}

<!-- Input with binding -->
{% rnx_component 'Input' type='email' placeholder='[email protected]' data_bind='state.email' %}

<!-- DataTable with reactive data -->
{% rnx_component 'DataTable' data='state.users' columns='state.columns' sortable=true pageable=true %}

<!-- Nested props with snake_case to kebab-case conversion -->
{% rnx_component 'Card' title='User Profile' show_footer=true %}

rnx_plugin

Initialize rnxJS plugins.

Syntax:

{% rnx_plugin 'plugin_name' [option1=value1] [option2=value2] ... %}

Parameters:

• Plugin name: 'router', 'toast', or 'storage'
• Plugin-specific configuration options

Available Plugins:

Router Plugin

Navigate between pages with hash-based routing.

{% rnx_plugin 'router' mode='hash' default_route='/' routes=routes %}

<!-- Route-specific content visibility -->
<div data-route="/">Home Page</div>
<div data-route="/users">Users Page</div>

Toast Plugin

Display notifications.

{% rnx_plugin 'toast' position='top-right' duration=3000 max_toasts=5 %}

<script>
    window.rnx.toast.success('Operation completed!');
    window.rnx.toast.error('An error occurred');
    window.rnx.toast.warning('Warning message');
    window.rnx.toast.info('Information');
</script>

Storage Plugin

Persist state to localStorage/sessionStorage.

{% rnx_plugin 'storage' prefix='myapp_' storage='localStorage' %}

<script>
    // Persist state
    window.rnx.storage.persist(state, 'user_prefs', ['theme', 'language']);

    // Retrieve
    const theme = window.rnx.storage.get('user_prefs_theme');
</script>

rnx_form

Render a Django form using rnxJS components.

Syntax:

{% rnx_form form [fields='field1,field2'] %}

Parameters:

• form - Django form instance
• fields (str, optional) - Comma-separated list of field names to render

Example:

{% load rnx %}

<form method="post">
    {% csrf_token %}
    {% rnx_form form %}
    <button type="submit">Save</button>
</form>

<!-- Or render specific fields -->
{% rnx_form form fields='name,email,message' %}

Filters

to_data_bind

Convert a key to rnxJS data-bind attribute format.

Syntax:

{{ key|to_data_bind }}

Example:

{{ 'user.profile.name'|to_data_bind }}
<!-- Output: data-bind="user.profile.name" -->

to_data_rule

Convert validation rules to rnxJS data-rule attribute format.

Syntax:

{{ rules|to_data_rule }}

Example:

{{ 'required|email|maxlength:100'|to_data_rule }}
<!-- Output: data-rule="required|email|maxlength:100" -->

Complete Example

views.py

from django.shortcuts import render
from django import forms


class ContactForm(forms.Form):
    name = forms.CharField(max_length=100)
    email = forms.EmailField()
    message = forms.CharField(widget=forms.Textarea)


def contact(request):
    if request.method == 'POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            # Process form...
            return render(request, 'contact_success.html')
    else:
        form = ContactForm()

    context = {
        'form': form,
        'app_state': {
            'page_title': 'Contact Us',
            'notification': 'Questions? We\'d love to hear from you!',
            'routes': {
                '/': 'Home',
                '/contact': 'Contact',
                '/about': 'About',
            }
        }
    }
    return render(request, 'contact.html', context)

contact.html

{% extends "base.html" %}
{% load rnx %}

{% block content %}
    {% rnx_state app_state 'appState' %}
    {% rnx_plugin 'toast' position='top-right' %}

    <h1 data-bind="appState.page_title"></h1>
    <p data-bind="appState.notification"></p>

    <form method="post">
        {% csrf_token %}
        {% rnx_form form %}
        {% rnx_component 'Button' type='submit' variant='primary' label='Send Message' %}
    </form>

    <script>
        document.querySelector('form').addEventListener('submit', function(e) {
            window.rnx.toast.success('Thank you! Your message has been sent.');
        });
    </script>
{% endblock %}

base.html

{% load rnx %}
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>My Site</title>
    {% rnx_scripts cdn=True theme='bootstrap' %}
</head>
<body>
    {% block content %}{% endblock %}
</body>
</html>

Running the Example App

A complete example Django application is included:

cd example_app
pip install django

# Run migrations (if any)
python manage.py migrate

# Start development server
python manage.py runserver

# Visit http://localhost:8000

The example demonstrates:

• Reactive state binding
• Component rendering
• Form integration
• Plugin usage (router, toast, storage)
• Data tables and lists
• Event handling

Security Considerations

HTML Escaping

All component props and text content are automatically HTML-escaped to prevent XSS attacks:

<!-- Safe: Will escape < > & quotes -->
{% rnx_component 'Button' label=user_input %}

Data Binding Expressions

String values starting with state., {, or [ are preserved without escaping for data binding:

<!-- Treated as data binding expression -->
{% rnx_component 'Div' data_content='state.userMessage' %}

<!-- Regular string, will be escaped -->
{% rnx_component 'Div' title='Hello World' %}

Template Tags

All template tags use Django's mark_safe() only after proper escaping and validation.

Contributing

Contributions are welcome! Please see CONTRIBUTING.md for guidelines.

License

MPL-2.0 - See LICENSE for details.

Support

• Documentation: rnxJS Documentation
• Issues: GitHub Issues
• Discussions: GitHub Discussions

Changelog

1.0.0 (2024)

• Initial release
• Django template tags: rnx_scripts, rnx_state, rnx_component, rnx_plugin, rnx_form
• Filters: to_data_bind, to_data_rule
• Bootstrap 5.3+ support
• Plugin integration (router, toast, storage)
• Example Django application
• Full test coverage