django-markdownx

Key features

raw editing
live preview
drag&drop image uploads (stored locally in MEDIA folder)
customizable image insertion tag
image filtering using content types and max file size
image manipulations (compression, size, cropping, upscaling)
pre-&post- text altering
easy template customization for layout purposes
multiple editors on one page
Django Admin support

Preview

^{(using Bootstrap for layout and styling)}

Quick Start

Install django-markdownx package.
```
pip install django-markdownx
```

Add markdownx to your INSTALLED_APPS.

#settings.py
INSTALLED_APPS = (
    [...]
    'markdownx',
)

Add url pattern to your urls.py.

#urls.py
urlpatterns = [
    [...]
    url(r'^markdownx/', include('markdownx.urls')),
]

Collect included markdownx.js and markdownx.css (for django admin styling) to your STATIC_ROOT folder.
```
python manage.py collectstatic
```

...and don't forget to include jQuery in your html file.

<head>
    [...]
    <script src="//code.jquery.com/jquery-2.1.1.min.js"></script>
</head>

Usage

Model

#models.py
from markdownx.models import MarkdownxField

class MyModel(models.Model):

    myfield = MarkdownxField()

...and then, include a form's required media in the template using {{ form.media }}:

<form method="POST" action="">{% csrf_token %}
    {{ form }}
</form>
{{ form.media }}

Form

#forms.py
from markdownx.fields import MarkdownxFormField

class MyForm(forms.Form):

    myfield = MarkdownxFormField()

...and then, include a form's required media in the template using {{ form.media }}:

<form method="POST" action="">{% csrf_token %}
    {{ form }}
</form>
{{ form.media }}

Django Admin

When using included MarkdowxModel class in your models, just use MarkdownxModelAdmin as follows:

#admin.py
from django.contrib import admin

from markdownx.admin import MarkdownxModelAdmin

from .models import MyModel

admin.site.register(MyModel, MarkdownxModelAdmin)

However, when you want to use markdownx with other classes – lets say TextField – than override default widget as follows:

#admin.py
from django.db import models
from django.contrib import admin

from markdownx.widgets import AdminMarkdownxWidget

from .models import MyModel

class MyModelAdmin(admin.ModelAdmin):
    formfield_overrides = {
        models.TextField: {'widget': AdminMarkdownxWidget},
    }

admin.site.register(MyModel, MyModelAdmin)

Customization

Settings

Place settings in your settings.py to override default values:

#settings.py

# Markdownify
MARKDOWNX_MARKDOWNIFY_FUNCTION = 'markdownx.utils.markdownify' # Default function that compiles markdown using defined extensions. Using custom function can allow you to pre-process or post-process markdown text. See below for more info.

# Markdown extensions
MARKDOWNX_MARKDOWN_EXTENSIONS = [] # List of used markdown extensions. See below for more info.
MARKDOWNX_MARKDOWN_EXTENSION_CONFIGS = {} # Configuration object for used markdown extensions

# Markdown urls
MARKDOWNX_URLS_PATH = '/markdownx/markdownify/' # URL that returns compiled markdown text.
MARKDOWNX_UPLOAD_URLS_PATH = '/markdownx/upload/' # URL that accepts file uploads, returns markdown notation of the image.

# Media path
MARKDOWNX_MEDIA_PATH = 'markdownx/' # Path, where images will be stored in MEDIA_ROOT folder

# Image
MARKDOWNX_UPLOAD_MAX_SIZE = 52428800 # 50MB - maximum file size
MARKDOWNX_UPLOAD_CONTENT_TYPES = ['image/jpeg', 'image/png', 'image/svg+xml'] # Acceptable file content types
MARKDOWNX_IMAGE_MAX_SIZE = {'size': (500, 500), 'quality': 90,} # Different options describing final image processing: size, compression etc. See below for more info. Dimensions are not applied to SVG files.

# Editor
MARKDOWNX_EDITOR_RESIZABLE = True # Update editor's height to inner content height while typing

MARKDOWNX_MARKDOWNIFY_FUNCTION

Default function that compiles markdown looks like:

# utils.py
import markdown

from .settings import MARKDOWNX_MARKDOWN_EXTENSIONS, MARKDOWNX_MARKDOWN_EXTENSION_CONFIGS

def markdownify(content):
    return markdown.markdown(content, extensions=MARKDOWNX_MARKDOWN_EXTENSIONS, extension_configs=MARKDOWNX_MARKDOWN_EXTENSION_CONFIGS)

MARKDOWNX_MARKDOWN_EXTENSIONS

#settings.py
MARKDOWNX_MARKDOWN_EXTENSIONS = [
    'markdown.extensions.extra',
    'markdown.extensions.nl2br',
    'markdown.extensions.smarty',
]

Visit https://pythonhosted.org/Markdown/extensions/index.html to read more about markdown extensions.

MARKDOWNX_IMAGE_MAX_SIZE

Dict properties:

size – (width, height). When 0 used, i.e.: (500,0), property will figure out proper height by itself
quality – default: 90 – image quality, from 0 (full compression) to 100 (no compression)
crop – default: False – if True, use size to crop final image
upscale – default: False – if image dimensions are smaller than those in size, upscale image to size dimensions

Widget's custom template

Default widget's template looks like:

<div class="markdownx">
    {{ markdownx_editor }}
    <div class="markdownx-preview"></div>
</div>

When you want to use Bootstrap 3 and side-by-side panes (as in preview image above), just place markdownx/widget.html file in your project's 'TEMPLATE_DIRS' folder with:

<div class="markdownx row">
    <div class="col-md-6">
        {{ markdownx_editor }}
    </div>
    <div class="col-md-6">
        <div class="markdownx-preview"></div>
    </div>
</div>

Custom image insertion tag

Markdown uses ![]() syntax to insert uploaded image file. This generates very simple html <image> tag. When you want to have more control and use your own html tags just create custom form_valid() function in ImageUploadView class.

Default ImageUploadView class looks like:

#views.py
from django.http import JsonResponse
from django.views.generic.edit import FormView

from .forms import ImageForm

class ImageUploadView(FormView):

    template_name = "dummy.html"
    form_class = ImageForm
    success_url = '/'

    def form_invalid(self, form):
        response = super(ImageUploadView, self).form_invalid(form)
        if self.request.is_ajax():
            return JsonResponse(form.errors, status=400)
        else:
            return response

    def form_valid(self, form):
        image_path = form.save()
        response = super(ImageUploadView, self).form_valid(form)

        if self.request.is_ajax():
            image_code = '![]({})'.format(image_path)
            return JsonResponse({'image_code': image_code})
        else:
            return response

JS events

Each markdownx jQuery object triggers two basic events:

'markdownx.init'
'markdownx.update' – also returns 'response' variable containing markdownified text

$('.markdownx').on('markdownx.init', function() {
	console.log("INIT");
});

$('.markdownx').on('markdownx.update', function(e, response) {
	console.log("UPDATE" + response);
});

Dependencies

Markdown
Pillow
Django
jQuery

License

django-markdown is licensed under the open source BSD license. Read LICENSE file for details.

Package requests

It would be nice if anyone could support this project by adding missing functionality:

tests
JS intelligent auto-scrolling when side-by-side panes used

Notes

django-markdownx was inspired by great django-images and django-bootstrap-markdown packages.

finallyeva / django-markdownx Goto Github PK