xref: /plugin/struct/action/ajax.php (revision 17dda596c085e9683f188448dab1efb239563cf4)
1914921fbSAndreas Gohr<?php
2d6d97f60SAnna Dabrowska
3914921fbSAndreas Gohr/**
4914921fbSAndreas Gohr * DokuWiki Plugin struct (Action Component)
5914921fbSAndreas Gohr *
6914921fbSAndreas Gohr * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
7914921fbSAndreas Gohr * @author  Andreas Gohr, Michael Große <dokuwiki@cosmocode.de>
8914921fbSAndreas Gohr */
9914921fbSAndreas Gohr
10ba766201SAndreas Gohruse dokuwiki\plugin\struct\meta\Schema;
11ba766201SAndreas Gohruse dokuwiki\plugin\struct\meta\StructException;
12914921fbSAndreas Gohr
13d6d97f60SAnna Dabrowskaclass action_plugin_struct_ajax extends DokuWiki_Action_Plugin
14d6d97f60SAnna Dabrowska{
15914921fbSAndreas Gohr    /**
16914921fbSAndreas Gohr     * Registers a callback function for a given event
17914921fbSAndreas Gohr     *
18914921fbSAndreas Gohr     * @param Doku_Event_Handler $controller DokuWiki's event controller object
19914921fbSAndreas Gohr     * @return void
20914921fbSAndreas Gohr     */
21d6d97f60SAnna Dabrowska    public function register(Doku_Event_Handler $controller)
22d6d97f60SAnna Dabrowska    {
23748e747fSAnna Dabrowska        $controller->register_hook('AJAX_CALL_UNKNOWN', 'BEFORE', $this, 'handleAjax');
24914921fbSAndreas Gohr    }
25914921fbSAndreas Gohr
26914921fbSAndreas Gohr    /**
27914921fbSAndreas Gohr     * Pass Ajax call to a type
28914921fbSAndreas Gohr     *
29914921fbSAndreas Gohr     * @param Doku_Event $event event object by reference
30914921fbSAndreas Gohr     */
31*17dda596SAnna Dabrowska    public function handleAjax(Doku_Event $event)
32d6d97f60SAnna Dabrowska    {
33914921fbSAndreas Gohr        if ($event->data != 'plugin_struct') return;
34914921fbSAndreas Gohr        $event->preventDefault();
35914921fbSAndreas Gohr        $event->stopPropagation();
369dfe4ab9SAndreas Gohr        global $conf;
37914921fbSAndreas Gohr
38914921fbSAndreas Gohr        header('Content-Type: application/json');
39914921fbSAndreas Gohr        try {
40914921fbSAndreas Gohr            $result = $this->executeTypeAjax();
41914921fbSAndreas Gohr        } catch (StructException $e) {
42914921fbSAndreas Gohr            $result = array(
439dfe4ab9SAndreas Gohr                'error' => $e->getMessage() . ' ' . basename($e->getFile()) . ':' . $e->getLine()
44914921fbSAndreas Gohr            );
459dfe4ab9SAndreas Gohr            if ($conf['allowdebug']) {
469dfe4ab9SAndreas Gohr                $result['stacktrace'] = $e->getTraceAsString();
479dfe4ab9SAndreas Gohr            }
48914921fbSAndreas Gohr            http_status(500);
49914921fbSAndreas Gohr        }
50914921fbSAndreas Gohr
51*17dda596SAnna Dabrowska        echo json_encode($result);
52914921fbSAndreas Gohr    }
53914921fbSAndreas Gohr
54914921fbSAndreas Gohr    /**
55914921fbSAndreas Gohr     * Check the input variables and run the AJAX call
56914921fbSAndreas Gohr     *
57914921fbSAndreas Gohr     * @return mixed
580549dcc5SAndreas Gohr     * @throws StructException
59914921fbSAndreas Gohr     */
60d6d97f60SAnna Dabrowska    protected function executeTypeAjax()
61d6d97f60SAnna Dabrowska    {
62914921fbSAndreas Gohr        global $INPUT;
63914921fbSAndreas Gohr
64914921fbSAndreas Gohr        $col = $INPUT->str('column');
65914921fbSAndreas Gohr        if (blank($col)) throw new StructException('No column provided');
66914921fbSAndreas Gohr        list($schema, $colname) = explode('.', $col, 2);
67914921fbSAndreas Gohr        if (blank($schema) || blank($colname)) throw new StructException('Column format is wrong');
68914921fbSAndreas Gohr
69914921fbSAndreas Gohr        $schema = new Schema($schema);
70914921fbSAndreas Gohr        if (!$schema->getId()) throw new StructException('Unknown Schema');
71914921fbSAndreas Gohr
72914921fbSAndreas Gohr        $column = $schema->findColumn($colname);
73914921fbSAndreas Gohr        if ($column === false) throw new StructException('Column not found');
74914921fbSAndreas Gohr
75914921fbSAndreas Gohr        return $column->getType()->handleAjax();
76914921fbSAndreas Gohr    }
77914921fbSAndreas Gohr}
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