source: trunk/prototype/library/tonic/examples/multirep/multirep.php @ 6528

Revision 6528, 3.4 KB checked in by gustavo, 12 years ago (diff)

Ticket #2766 - Merge do branch das novas funcionalidaes para o trunk
  • Property svn:executable set to *
Line 
1<?php
2
3/**
4 * Multiple representation example
5 *
6 * A representation is an output format for a resource. A single resource can have
7 * many output representations that can differ depending on the request data.
8 *
9 * Representations are built up as strings within the Response object and it is
10 * down to the programmer to implement the desired logic for choosing and building
11 * a required representation.
12 *
13 * This example produces three different representations of the resource data
14 * depending on the request accept header information.
15 *
16 * @namespace Tonic\Examples\Multirep
17 * @uri /multirep
18 */
19class MultiRepresentationResource extends Resource {
20   
21    var $data = array(
22        'secret' => 'monkey',
23        'hidden' => 'squirrel'
24    );
25   
26    /**
27     * Handle a GET request for this resource
28     * @param Request request
29     * @return Response
30     */
31    function get($request) {
32       
33        $response = new Response($request);
34        $response->code = Response::OK;
35       
36        // select the most acceptable format of the given types from the request
37        $format = $request->mostAcceptable(array(
38            'json', 'html', 'txt'
39        ));
40       
41        switch ($format) {
42       
43        // obviously it might make more sense to put the HTML in another file
44        // and use some kind of templating system
45        case 'html':
46            $response->addHeader('Content-type', 'text/html');
47            $response->body = '<!DOCTYPE html>';
48            $response->body .= '<html>';
49            $response->body .= '<head>';
50            $response->body .= '<title>HTML Representation</title>';
51            $response->body .= '</head>';
52            $response->body .= '<body>';
53            $response->body .= '<h1>HTML Representation</h1>';
54            $response->body .= '<table border="1">';
55            foreach ($this->data as $field => $value) {
56                $response->body .= '<tr>';
57                $response->body .= '<th>'.htmlspecialchars($field).'</th>';
58                $response->body .= '<td>'.htmlspecialchars($value).'</td>';
59                $response->body .= '</tr>';
60            }
61            $response->body .= '</table>';
62            $response->body .= '<h2>Explicit links to available formats</h2>';
63            $response->body .= '<a href="/multirep.txt">Plain text</a> ';
64            $response->body .= '<a href="/multirep.json">JSON</a> ';
65            $response->body .= '<a href="/multirep.html">HTML</a>';
66            $response->body .= '</body>';
67            $response->body .= '</html>';
68            break;
69       
70        case 'json':
71            $response->addHeader('Content-type', 'application/json');
72            $response->body = json_encode($this->data);
73            break;
74       
75        case 'txt':
76            $response->addHeader('Content-type', 'text/plain');
77            $response->body = "Plain Text Representation\n";
78            $response->body .= "\n";
79            ob_start();
80            var_dump($this->data);
81            $response->body .= ob_get_contents();
82            ob_end_clean();
83            break;
84           
85        // we don't have a suitable format, so do a 406 response instead
86        default:
87            $response->code = Response::NOTACCEPTABLE;
88            $response->addHeader('Content-type', 'text/plain');
89            $response->body = "406 Not Acceptable\n";
90            break;
91           
92        }
93       
94        return $response;
95       
96    }
97   
98}
99
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