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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
|
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<title>3.1 Announcement - Django REST framework</title>
<link href="../../img/favicon.ico" rel="icon" type="image/x-icon">
<link rel="canonical" href="http://www.django-rest-framework.org/topics/3.1-announcement/" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Django, API, REST, 3.1 Announcement">
<meta name="author" content="Tom Christie">
<!-- Le styles -->
<link href="../../css/prettify.css" rel="stylesheet">
<link href="../../css/bootstrap.css" rel="stylesheet">
<link href="../../css/bootstrap-responsive.css" rel="stylesheet">
<link href="../../css/default.css" rel="stylesheet">
<!-- Le HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-18852272-2']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script');
ga.type = 'text/javascript';
ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
})();
</script>
<style>
span.fusion-wrap a {
display: block;
margin-top: 10px;
color: black;
}
a.fusion-poweredby {
display: block;
margin-top: 10px;
}
@media (max-width: 767px) {
div.promo {
display: none;
}
}
</style>
</head>
<body onload="prettyPrint()" class="-page">
<div class="wrapper">
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container-fluid">
<a class="repo-link btn btn-primary btn-small" href="https://github.com/tomchristie/django-rest-framework/tree/master">GitHub</a>
<a class="repo-link btn btn-inverse btn-small " rel="prev" href="../kickstarter-announcement">
Next <i class="icon-arrow-right icon-white"></i>
</a>
<a class="repo-link btn btn-inverse btn-small " rel="next" href="../3.0-announcement">
<i class="icon-arrow-left icon-white"></i> Previous
</a>
<a class="repo-link btn btn-inverse btn-small" href="#searchModal" data-toggle="modal"><i class="icon-search icon-white"></i> Search</a>
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="http://www.django-rest-framework.org">Django REST framework</a>
<div class="nav-collapse collapse">
<!-- Main navigation -->
<ul class="nav navbar-nav">
<li ><a href="/">Home</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Tutorial <b class="caret"></b></a>
<ul class="dropdown-menu">
<li >
<a href="../../tutorial/quickstart">Quickstart</a>
</li>
<li >
<a href="../../tutorial/1-serialization">1 - Serialization</a>
</li>
<li >
<a href="../../tutorial/2-requests-and-responses">2 - Requests and responses</a>
</li>
<li >
<a href="../../tutorial/3-class-based-views">3 - Class based views</a>
</li>
<li >
<a href="../../tutorial/4-authentication-and-permissions">4 - Authentication and permissions</a>
</li>
<li >
<a href="../../tutorial/5-relationships-and-hyperlinked-apis">5 - Relationships and hyperlinked APIs</a>
</li>
<li >
<a href="../../tutorial/6-viewsets-and-routers">6 - Viewsets and routers</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">API Guide <b class="caret"></b></a>
<ul class="dropdown-menu">
<li >
<a href="../../api-guide/requests">Requests</a>
</li>
<li >
<a href="../../api-guide/responses">Responses</a>
</li>
<li >
<a href="../../api-guide/views">Views</a>
</li>
<li >
<a href="../../api-guide/generic-views">Generic views</a>
</li>
<li >
<a href="../../api-guide/viewsets">Viewsets</a>
</li>
<li >
<a href="../../api-guide/routers">Routers</a>
</li>
<li >
<a href="../../api-guide/parsers">Parsers</a>
</li>
<li >
<a href="../../api-guide/renderers">Renderers</a>
</li>
<li >
<a href="../../api-guide/serializers">Serializers</a>
</li>
<li >
<a href="../../api-guide/fields">Serializer fields</a>
</li>
<li >
<a href="../../api-guide/relations">Serializer relations</a>
</li>
<li >
<a href="../../api-guide/validators">Validators</a>
</li>
<li >
<a href="../../api-guide/authentication">Authentication</a>
</li>
<li >
<a href="../../api-guide/permissions">Permissions</a>
</li>
<li >
<a href="../../api-guide/throttling">Throttling</a>
</li>
<li >
<a href="../../api-guide/filtering">Filtering</a>
</li>
<li >
<a href="../../api-guide/pagination">Pagination</a>
</li>
<li >
<a href="../../api-guide/versioning">Versioning</a>
</li>
<li >
<a href="../../api-guide/content-negotiation">Content negotiation</a>
</li>
<li >
<a href="../../api-guide/metadata">Metadata</a>
</li>
<li >
<a href="../../api-guide/format-suffixes">Format suffixes</a>
</li>
<li >
<a href="../../api-guide/reverse">Returning URLs</a>
</li>
<li >
<a href="../../api-guide/exceptions">Exceptions</a>
</li>
<li >
<a href="../../api-guide/status-codes">Status codes</a>
</li>
<li >
<a href="../../api-guide/testing">Testing</a>
</li>
<li >
<a href="../../api-guide/settings">Settings</a>
</li>
</ul>
</li>
<li class="dropdown active">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Topics <b class="caret"></b></a>
<ul class="dropdown-menu">
<li >
<a href="../documenting-your-api">Documenting your API</a>
</li>
<li >
<a href="../internationalization">Internationalization</a>
</li>
<li >
<a href="../ajax-csrf-cors">AJAX, CSRF & CORS</a>
</li>
<li >
<a href="../browser-enhancements">Browser enhancements</a>
</li>
<li >
<a href="../browsable-api">The Browsable API</a>
</li>
<li >
<a href="../rest-hypermedia-hateoas">REST, Hypermedia & HATEOAS</a>
</li>
<li >
<a href="../third-party-resources">Third Party Resources</a>
</li>
<li >
<a href="../contributing">Contributing to REST framework</a>
</li>
<li >
<a href="../project-management">Project management</a>
</li>
<li >
<a href="../3.0-announcement">3.0 Announcement</a>
</li>
<li class="active" >
<a href=".">3.1 Announcement</a>
</li>
<li >
<a href="../kickstarter-announcement">Kickstarter Announcement</a>
</li>
<li >
<a href="../release-notes">Release Notes</a>
</li>
</ul>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
</div>
</div>
<div class="body-content">
<div class="container-fluid">
<!-- Search Modal -->
<div id="searchModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h3 id="myModalLabel">Documentation search</h3>
</div>
<div class="modal-body">
<!-- Custom google search -->
<script>
(function() {
var cx = '015016005043623903336:rxraeohqk6w';
var gcse = document.createElement('script');
gcse.type = 'text/javascript';
gcse.async = true;
gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
'//www.google.com/cse/cse.js?cx=' + cx;
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(gcse, s);
})();
</script>
<gcse:search></gcse:search>
</div>
<div class="modal-footer">
<button class="btn" data-dismiss="modal" aria-hidden="true">Close</button>
</div>
</div>
<div class="row-fluid">
<div class="span3">
<!-- TODO
<p style="margin-top: -12px">
<a class="btn btn-mini btn-primary" style="width: 60px">« previous</a>
<a class="btn btn-mini btn-primary" style="float: right; margin-right: 8px; width: 60px;">next »</a>
</p>
-->
<div id="table-of-contents">
<ul class="nav nav-list side-nav well sidebar-nav-fixed">
<li class="main">
<a href="#django-rest-framework-31">Django REST framework 3.1</a>
</li>
<li>
<a href="#pagination">Pagination</a>
</li>
<li>
<a href="#versioning">Versioning</a>
</li>
<li>
<a href="#internationalization">Internationalization</a>
</li>
<li>
<a href="#new-field-types">New field types</a>
</li>
<li>
<a href="#modelserializer-api">ModelSerializer API</a>
</li>
<li>
<a href="#moving-packages-out-of-core">Moving packages out of core</a>
</li>
<li>
<a href="#deprecations">Deprecations</a>
</li>
<li>
<a href="#whats-next">What's next?</a>
</li>
</ul>
</div>
</div>
<div id="main-content" class="span9">
<h1 id="django-rest-framework-31">Django REST framework 3.1</h1>
<p>The 3.1 release is an intermediate step in the Kickstarter project releases, and includes a range of new functionality.</p>
<p>Some highlights include:</p>
<ul>
<li>A super-smart cursor pagination scheme.</li>
<li>An improved pagination API, supporting header or in-body pagination styles.</li>
<li>Pagination controls rendering in the browsable API.</li>
<li>Better support for API versioning.</li>
<li>Built-in internationalization support.</li>
<li>Support for Django 1.8's <code>HStoreField</code> and <code>ArrayField</code>.</li>
</ul>
<hr />
<h2 id="pagination">Pagination</h2>
<p>The pagination API has been improved, making it both easier to use, and more powerful.</p>
<p>A guide to the headline features follows. For full details, see <a href="../../api-guide/pagination">the pagination documentation</a>.</p>
<p>Note that as a result of this work a number of settings keys and generic view attributes are now moved to pending deprecation. Controlling pagination styles is now largely handled by overriding a pagination class and modifying its configuration attributes.</p>
<ul>
<li>The <code>PAGINATE_BY</code> settings key will continue to work but is now pending deprecation. The more obviously named <code>PAGE_SIZE</code> settings key should now be used instead.</li>
<li>The <code>PAGINATE_BY_PARAM</code>, <code>MAX_PAGINATE_BY</code> settings keys will continue to work but are now pending deprecation, in favor of setting configuration attributes on the configured pagination class.</li>
<li>The <code>paginate_by</code>, <code>page_query_param</code>, <code>paginate_by_param</code> and <code>max_paginate_by</code> generic view attributes will continue to work but are now pending deprecation, in favor of setting configuration attributes on the configured pagination class.</li>
<li>The <code>pagination_serializer_class</code> view attribute and <code>DEFAULT_PAGINATION_SERIALIZER_CLASS</code> settings key <strong>are no longer valid</strong>. The pagination API does not use serializers to determine the output format, and you'll need to instead override the <code>get_paginated_response</code> method on a pagination class in order to specify how the output format is controlled.</li>
</ul>
<h4 id="new-pagination-schemes">New pagination schemes.</h4>
<p>Until now, there has only been a single built-in pagination style in REST framework. We now have page, limit/offset and cursor based schemes included by default.</p>
<p>The cursor based pagination scheme is particularly smart, and is a better approach for clients iterating through large or frequently changing result sets. The scheme supports paging against non-unique indexes, by using both cursor and limit/offset information. It also allows for both forward and reverse cursor pagination. Much credit goes to David Cramer for <a href="http://cramer.io/2011/03/08/building-cursors-for-the-disqus-api/">this blog post</a> on the subject.</p>
<h4 id="pagination-controls-in-the-browsable-api">Pagination controls in the browsable API.</h4>
<p>Paginated results now include controls that render directly in the browsable API. If you're using the page or limit/offset style, then you'll see a page based control displayed in the browsable API:</p>
<p><img alt="page number based pagination" src="../../../img/pages-pagination.png" /></p>
<p>The cursor based pagination renders a more simple style of control:</p>
<p><img alt="cursor based pagination" src="../../../img/cursor-pagination.png" /></p>
<h4 id="support-for-header-based-pagination">Support for header-based pagination.</h4>
<p>The pagination API was previously only able to alter the pagination style in the body of the response. The API now supports being able to write pagination information in response headers, making it possible to use pagination schemes that use the <code>Link</code> or <code>Content-Range</code> headers.</p>
<p>For more information, see the <a href="../../../api-guide/pagination/#custom-pagination-styles">custom pagination styles</a> documentation.</p>
<hr />
<h2 id="versioning">Versioning</h2>
<p>We've made it <a href="../../api-guide/versioning">easier to build versioned APIs</a>. Built-in schemes for versioning include both URL based and Accept header based variations.</p>
<p>When using a URL based scheme, hyperlinked serializers will resolve relationships to the same API version as used on the incoming request.</p>
<p>For example, when using <code>NamespaceVersioning</code>, and the following hyperlinked serializer:</p>
<pre><code>class AccountsSerializer(serializer.HyperlinkedModelSerializer):
class Meta:
model = Accounts
fields = ('account_name', 'users')
</code></pre>
<p>The output representation would match the version used on the incoming request. Like so:</p>
<pre><code>GET http://example.org/v2/accounts/10 # Version 'v2'
{
"account_name": "europa",
"users": [
"http://example.org/v2/users/12", # Version 'v2'
"http://example.org/v2/users/54",
"http://example.org/v2/users/87"
]
}
</code></pre>
<hr />
<h2 id="internationalization">Internationalization</h2>
<p>REST framework now includes a built-in set of translations, and <a href="../internationalization">supports internationalized error responses</a>. This allows you to either change the default language, or to allow clients to specify the language via the <code>Accept-Language</code> header.</p>
<p>You can change the default language by using the standard Django <code>LANGUAGE_CODE</code> setting:</p>
<pre><code>LANGUAGE_CODE = "es-es"
</code></pre>
<p>You can turn on per-request language requests by adding <code>LocalMiddleware</code> to your <code>MIDDLEWARE_CLASSES</code> setting:</p>
<pre><code>MIDDLEWARE_CLASSES = [
...
'django.middleware.locale.LocaleMiddleware'
]
</code></pre>
<p>When per-request internationalization is enabled, client requests will respect the <code>Accept-Language</code> header where possible. For example, let's make a request for an unsupported media type:</p>
<p><strong>Request</strong></p>
<pre><code>GET /api/users HTTP/1.1
Accept: application/xml
Accept-Language: es-es
Host: example.org
</code></pre>
<p><strong>Response</strong></p>
<pre><code>HTTP/1.0 406 NOT ACCEPTABLE
{
"detail": "No se ha podido satisfacer la solicitud de cabecera de Accept."
}
</code></pre>
<p>Note that the structure of the error responses is still the same. We still have a <code>details</code> key in the response. If needed you can modify this behavior too, by using a <a href="../../api-guide/exceptions#custom-exception-handling">custom exception handler</a>.</p>
<p>We include built-in translations both for standard exception cases, and for serializer validation errors.</p>
<p>The full list of supported languages can be found on our <a href="https://www.transifex.com/projects/p/django-rest-framework/">Transifex project page</a>.</p>
<p>If you only wish to support a subset of the supported languages, use Django's standard <code>LANGUAGES</code> setting:</p>
<pre><code>LANGUAGES = [
('de', _('German')),
('en', _('English')),
]
</code></pre>
<p>For more details, see the <a href="../internationalization">internationalization documentation</a>.</p>
<p>Many thanks to <a href="https://github.com/jakul">Craig Blaszczyk</a> for helping push this through.</p>
<hr />
<h2 id="new-field-types">New field types</h2>
<p>Django 1.8's new <code>ArrayField</code>, <code>HStoreField</code> and <code>UUIDField</code> are now all fully supported.</p>
<p>This work also means that we now have both <code>serializers.DictField()</code>, and <code>serializers.ListField()</code> types, allowing you to express and validate a wider set of representations.</p>
<p>If you're building a new 1.8 project, then you should probably consider using <code>UUIDField</code> as the primary keys for all your models. This style will work automatically with hyperlinked serializers, returning URLs in the following style:</p>
<pre><code>http://example.org/api/purchases/9b1a433f-e90d-4948-848b-300fdc26365d
</code></pre>
<hr />
<h2 id="modelserializer-api">ModelSerializer API</h2>
<p>The serializer redesign in 3.0 did not include any public API for modifying how ModelSerializer classes automatically generate a set of fields from a given mode class. We've now re-introduced an API for this, allowing you to create new ModelSerializer base classes that behave differently, such as using a different default style for relationships.</p>
<p>For more information, see the documentation on <a href="../../../api-guide/serializers.md/#customizing-field-mappings">customizing field mappings</a> for ModelSerializer classes.</p>
<hr />
<h2 id="moving-packages-out-of-core">Moving packages out of core</h2>
<p>We've now moved a number of packages out of the core of REST framework, and into separately installable packages. If you're currently using these you don't need to worry, you simply need to <code>pip install</code> the new packages, and change any import paths.</p>
<p>We're making this change in order to help distribute the maintainance workload, and keep better focus of the core essentials of the framework.</p>
<p>The change also means we can be more flexible with which external packages we recommend. For example, the excellently maintained <a href="https://github.com/evonove/django-oauth-toolkit">Django OAuth toolkit</a> has now been promoted as our recommended option for integrating OAuth support.</p>
<p>The following packages are now moved out of core and should be separately installed:</p>
<ul>
<li>OAuth - <a href="http://jpadilla.github.io/django-rest-framework-oauth/">djangorestframework-oauth</a></li>
<li>XML - <a href="http://jpadilla.github.io/django-rest-framework-xml">djangorestframework-xml</a></li>
<li>YAML - <a href="http://jpadilla.github.io/django-rest-framework-yaml">djangorestframework-yaml</a></li>
<li>JSONP - <a href="http://jpadilla.github.io/django-rest-framework-jsonp">djangorestframework-jsonp</a></li>
</ul>
<p>It's worth reiterating that this change in policy shouldn't mean any work in your codebase other than adding a new requirement and modifying some import paths. For example to install XML rendering, you would now do:</p>
<pre><code>pip install djangorestframework-xml
</code></pre>
<p>And modify your settings, like so:</p>
<pre><code>REST_FRAMEWORK = {
'DEFAULT_RENDERER_CLASSES': [
'rest_framework.renderers.JSONRenderer',
'rest_framework.renderers.BrowsableAPIRenderer',
'rest_framework_xml.renderers.XMLRenderer'
]
}
</code></pre>
<p>Thanks go to the latest member of our maintenance team, <a href="https://github.com/jpadilla/">José Padilla</a>, for handling this work and taking on ownership of these packages.</p>
<hr />
<h2 id="deprecations">Deprecations</h2>
<p>The <code>request.DATA</code>, <code>request.FILES</code> and <code>request.QUERY_PARAMS</code> attributes move from pending deprecation, to deprecated. Use <code>request.data</code> and <code>request.query_params</code> instead, as discussed in the 3.0 release notes.</p>
<p>The ModelSerializer Meta options for <code>write_only_fields</code>, <code>view_name</code> and <code>lookup_field</code> are also moved from pending deprecation, to deprecated. Use <code>extra_kwargs</code> instead, as discussed in the 3.0 release notes.</p>
<p>All these attributes and options will still work in 3.1, but their usage will raise a warning. They will be fully removed in 3.2.</p>
<hr />
<h2 id="whats-next">What's next?</h2>
<p>The next focus will be on HTML renderings of API output and will include:</p>
<ul>
<li>HTML form rendering of serializers.</li>
<li>Filtering controls built-in to the browsable API.</li>
<li>An alternative admin-style interface.</li>
</ul>
<p>This will either be made as a single 3.2 release, or split across two separate releases, with the HTML forms and filter controls coming in 3.2, and the admin-style interface coming in a 3.3 release.</p>
</div>
<!--/span-->
</div>
<!--/row-->
</div>
<!--/.fluid-container-->
</div>
<!--/.body content-->
<div id="push"></div>
</div>
<!--/.wrapper -->
<footer class="span12">
<p>Documentation built with <a href="http://www.mkdocs.org/">MkDocs</a>.</a>
</p>
</footer>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="../../js/jquery-1.8.1-min.js"></script>
<script src="../../js/prettify-1.0.js"></script>
<script src="../../js/bootstrap-2.1.1-min.js"></script>
<script src="../../js/theme.js"></script>
<script>
//$('.side-nav').scrollspy()
var shiftWindow = function() {
scrollBy(0, -50)
};
if (location.hash) shiftWindow();
window.addEventListener("hashchange", shiftWindow);
$('.dropdown-menu').on('click touchstart', function(event) {
event.stopPropagation();
});
// Dynamically force sidenav to no higher than browser window
$('.side-nav').css('max-height', window.innerHeight - 130);
$(function() {
$(window).resize(function() {
$('.side-nav').css('max-height', window.innerHeight - 130);
});
});
</script>
</body>
</html>
|
