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
|
<?php
class Page_News extends Page
{
/**
* Member variables needed to represent a news entry.
*
* @var newsId int ID of the news entry attributed by the database.
* @var string Title of the entry.
* $newsContent string Content as text. (TODO: html-Support?)
* $newsDate string Unix epoch date of the news' creation.
*/
private $newsId = false;
private $newsTitle = false;
private $newsContent = false;
private $newsDate = false;
/**
* Implementation of the abstract doPreprocess function
*
* Checks if the user is logged in and processes any
* action if one was specified in the request.
*
*/
protected function doPreprocess()
{
// load user, we will need it later
User::load();
// only admins should be able to edit news
if (!User::hasPermission('superadmin')) {
Message::addError('no-permission');
Util::redirect('?do=Main');
}
// check which action we need to do
$action = Request::any('action', 'show');
if ($action === 'clear') {
// clear news input fields
// TODO: is this the right way?
$this->newsId = false;
$this->newsTitle = false;
$this->newsContent = false;
$this->newsDate = false;
} elseif ($action === 'show') {
// show news
if (!$this->loadNews(Request::any('newsid'))) {
Message::addError('news-empty');
}
} elseif ($action === 'save') {
// save to DB
if (!$this->saveNews()) {
// re-set the fields we got
Request::post('news-title') ? $this->newsTitle = Request::post('news-title') : $this->newsTitle = false;
Request::post('news-content') ? $this->newsContent = Request::post('news-content') : $this->newsContent = false;
} else {
Message::addSuccess('news-save-success');
Util::redirect('?do=News');
}
} elseif ($action === 'delete') {
// delete it
$this->delNews(Request::post('newsid'));
} else {
// unknown action, redirect user
Message::addError('invalid-action', $action);
Util::redirect('?do=News');
}
}
/**
* Implementation of the abstract doRender function
*
* Fetch the list of news from the database and paginate it.
*
*/
protected function doRender()
{
// fetch the list of the older news
$lines = array();
$paginate = new Paginate("SELECT newsid, dateline, title, content FROM news ORDER BY dateline DESC", 10);
$res = $paginate->exec();
while ($row = $res->fetch(PDO::FETCH_ASSOC)) {
$row['date'] = date('d.m.Y H:i', $row['dateline']);
if ($row['newsid'] == $this->newsId) $row['active'] = "active";
$lines[] = $row;
}
$paginate->render('page-news', array(
'token' => Session::get('token'),
'latestDate' => ($this->newsDate ? date('d.m.Y H:i', $this->newsDate) : '--'),
'latestContent' => $this->newsContent,
'latestTitle' => $this->newsTitle,
'list' => $lines ));
}
/**
* Loads the news with the given ID into the form.
*
* @param int $newsId ID of the news to be shown.
* @return boolean true if loading that news worked
*
*/
private function loadNews($newsId)
{
// check to see if we need to request a specific newsid
if ($newsId !== false) {
$row = Database::queryFirst("SELECT newsid, title, content, dateline FROM news WHERE newsid = :newsid LIMIT 1", array(
'newsid' => $newsId
));
} else {
$row = Database::queryFirst("SELECT newsid, title, content, dateline FROM news ORDER BY dateline DESC LIMIT 1");
}
// fetch the news to be shown
if ($row !== false) {
$this->newsId = $row['newsid'];
$this->newsTitle = $row['title'];
$this->newsContent = $row['content'];
$this->newsDate = $row['dateline'];
}
return $row !== false;
}
/**
* Save the given $newsTitle and $newsContent as POST'ed into the database.
*
*/
private function saveNews()
{
// check if news content were set by the user
$newsTitle = Request::post('news-title');
$newsContent = Request::post('news-content');
if ($newsContent !== '' && $newsTitle !== '') {
// we got title and content, save it to DB
Database::exec("INSERT INTO news (dateline, title, content) VALUES (:dateline, :title, :content)", array(
'dateline' => time(),
'title' => $newsTitle,
'content' => $newsContent
));
return true;
} else {
Message::addError('empty-field');
return false;
}
}
/**
* Delete the news entry with ID $newsId
*
* @param int $newsId ID of the entry to be deleted.
*/
private function delNews($newsId)
{
// sanity check: is newsId even numeric?
if (!is_numeric($newsId)) {
Message::addError('value-invalid', 'newsid', $newsId);
} else {
// check passed - do delete
Database::exec("DELETE FROM news WHERE newsid = :newsid LIMIT 1", array(
'newsid' => $newsId
));
Message::addSuccess('news-del-success');
}
Util::redirect('?do=News');
}
}
|
