django-misc 0.1.0

{% load html_tags %}

{% remove_tags <text> %}

Removes html tags and replace <br/> by n

{% load misc_tags %}

{{ text|cutafter:"<length>" }}

Cut text after <length> characters and, if necessary, add tree dots (…) to the end

{% get_range <length> %}

Return simple python range(<length>) list

{% get_element <dict> <key1> [<key2>] %}

Return a dict value by key1 and, if specified, key2 (i.e. dict[key1][key2])

JSONTemplateResponse

It works like TemplateResponse, but return JSON response

in view.py:

...
return JSONTemplateResponse(request, template_name, template_context, data={'status': 'ok', 'user': request.user})

This line will create response

{
    "status": "ok",
    "user": {
        "username": "frol",
        "first_name": "",
        "last_name": "",
        "is_active": true,
        "email": "qq@qq.qq",
        "is_superuser": true,
        "is_staff": true,
        "last_login": "2012-01-24 18:59:55",
        "password": "sha1$fffff$1b4d68b3731ec29a797d61658c716e2400000000",
        "id": 1,
        "date_joined": "2011-07-09 05:57:21"
    },
    "html": "<rendered HTML>"
}

WARNING: Be carefull with serialization of model objects. As you can see in example, password hash has been serialized.

json_encode

json_encode(data)

Serialize python object into JSON string.

The main issues with django’s default json serializer is that properties that had been added to an object dynamically are being ignored (and it also has problems with some models).

json_response

json_response(data)

Serialize python object into JSON string and return HttpResponse with correct content_type (application/json)

json_template

json_template(data, template_name, template_context)

Render template, add it for serialization data, serialize data into JSON string and return HttpResponse with correct content_type.

server_error

misc.views.server_error(request)

Put server_error as your handler500 in urls.py and add templates/errors/500.html

handler500 = 'misc.views.server_error'

decorator to_template or render_to

to_template(template_name=None)

Decorator to simply call direct_to_template:

@to_template("test.html")
def test(request):
    return {'test': 100}

@to_template
def test2(request):
    return {'test': 100, 'TEMPLATE': 'test.html'}

@to_template
def test2(request, template_name='test.html'):
    return {'test': 100, 'TEMPLATE': template_name}

HttpResponseReload

utils.HttpResponseReload(request)

Reload current page.

def simple_view(request, form_class=CommentForm, template_name='some_template.html'):
    form = CommentForm(request.POST or None)
    if form.valid():
        form.save()
        return HttpResponseReload(request)
    return render(template_name, {'form': form})

str_to_class

utils.str_to_class(class_name)

Returns a class based on class name

get_alphabets

utils.get_alphabets()

Returns pair of english and russian alphabets. Useful for creating filters.

handle_lock

management.handle_lock(handle)

Decorate the handle method with a file lock to ensure there is only ever one process running at any one time.

sync_site

sync_site is post syncdb event, that will sync current Site object with settings like SITE_NAME and SITE_DOMAIN

clear_html_code

html.clear.clear_html_code(text)

Clean up HTML code from tags that are not allowed. Structure of allowed tags can be found at needs.cfg. clear.py is generated by html/generator.py with needs.cfg as config file

generator

./generator.py

Will generate clear.py source code file, according to rules specified at needs.cfg. Example of simpler configuration file can be found in example.cfg