Login

JSON View Decorator

Author:
bryanpieper
Posted:
July 11, 2010
Language:
Python
Version:
1.2
Score:
3 (after 3 ratings)

Django JSON view decorator. Dumps the object returned from the view function. Allows you to customize the JSON dumps() function using the available keyword arguments available from the simplejson module. By default, indents the output with 4 characters.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
from functools import wraps
from django.http import HttpResponse
from django.utils import simplejson as json

def render_to_json(**jsonargs):
    """
    Renders a JSON response with a given returned instance. Assumes json.dumps() can
    handle the result. The default output uses an indent of 4.
    
    @render_to_json()
    def a_view(request, arg1, argN):
        ...
        return {'x': range(4)}

    @render_to_json(indent=2)
    def a_view2(request):
        ...
        return [1, 2, 3]

    """
    def outer(f):
        @wraps(f)
        def inner_json(request, *args, **kwargs):
            result = f(request, *args, **kwargs)
            r = HttpResponse(mimetype='application/json')
            if result:
                indent = jsonargs.pop('indent', 4)
                r.write(json.dumps(result, indent=indent, **jsonargs))
            else:
                r.write("{}")
            return r
        return inner_json
    return outer

More like this

  1. Template tag - list punctuation for a list of items by shapiromatron 2 months ago
  2. JSONRequestMiddleware adds a .json() method to your HttpRequests by cdcarter 2 months, 1 week ago
  3. Serializer factory with Django Rest Framework by julio 9 months, 1 week ago
  4. Image compression before saving the new model / work with JPG, PNG by Schleidens 9 months, 4 weeks ago
  5. Help text hyperlinks by sa2812 10 months, 3 weeks ago

Comments

Please login first before commenting.