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
|
<?php
/**
* ownCloud - News app
*
* @author Alessandro Cosentino
* Copyright (c) 2012 - Alessandro Cosentino <cosenal@gmail.com>
*
* This file is licensed under the Affero General Public License version 3 or later.
* See the COPYING-README file
*
*/
/**
* This class maps a feed to an entry in the feeds table of the database.
*/
class OC_News_FeedMapper {
const tableName = '*PREFIX*news_feeds';
private $userid;
public function __construct($userid = null){
if ($userid !== null) {
$this->userid = $userid;
}
$this->userid = OCP\USER::getUser();
}
/**
* @brief
* @param row a row from the feeds table of the database
* @returns an object of the class OC_News_Feed
*/
public function fromRow($row){
}
/**
* @brief
* @param userid
* @returns
*/
public function findAll(){
$query = 'SELECT * FROM ' . self::tableName;
$params = array();
if( $this->userid ){
$query = $query.' WHERE user_id = ?';
$params[] = $this->userid;
}
$stmt = OCP\DB::prepare( $query );
$result = $stmt->execute( $params );
$feeds = array();
while ($row = $result->fetchRow()) {
$url = $row['url'];
$id = $row['id'];
$folderid = $row['folder_id'];
$userid = $row['user_id'];
$feeds[] = array("url" => $url, "id" => $id, "folderid" => $folderid, 'userid' => $userid );
}
return $feeds;
}
/**
* @brief Retrieve a feed from the database
* @param id The id of the feed in the database table.
* @returns
*/
public function findById($id){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE id = ?');
$result = $stmt->execute(array($id));
if(!$row = $result->fetchRow())
return null;
$url = $row['url'];
$title = $row['title'];
$feed = new OC_News_Feed($url, $title, null, $id);
return $feed;
}
/**
* @brief Retrieve a feed from the database
* @param id The id of the feed in the database table.
* @returns an instance of OC_News_Feed
*/
public function findByFolderId($folderid){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE folder_id = ?');
$result = $stmt->execute(array($folderid));
$feeds = array();
while ($row = $result->fetchRow()) {
$url = $row['url'];
$title = $row['title'];
$id = $row['id'];
$feed = new OC_News_Feed($url, $title, null, $id);
$favicon = $row['favicon_link'];
$feed->setFavicon($favicon);
$feeds[] = $feed;
}
return $feeds;
}
/**
* @brief Retrieve a feed and all its items from the database
* @param id The id of the feed in the database table.
* @returns an instance of OC_News_Feed
*/
public function findWithItems($id){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE id = ?');
$result = $stmt->execute(array($id));
$row = $result->fetchRow();
$url = $row['url'];
$title = $row['title'];
$feed = new OC_News_Feed($url, $title, null,$id);
$favicon = $row['favicon_link'];
$feed->setFavicon($favicon);
$itemMapper = new OC_News_ItemMapper();
$items = $itemMapper->findAll($id);
$feed->setItems($items);
return $feed;
}
/**
* @brief Find the id of a feed and all its items from the database
* @param url url of the feed
* @return id of the feed corresponding to the url passed as parameters
* null - if there is no such feed
*/
public function findIdFromUrl($url){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE url = ?');
$result = $stmt->execute(array($url));
$row = $result->fetchRow();
$id = null;
if ($row != null){
$id = $row['id'];
}
return $id;
}
public function mostRecent(){
//FIXME: does something like SELECT TOP 1 * exists in pear/mdb2 ??
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' ORDER BY lastmodified');
$result = $stmt->execute();
$row = $result->fetchRow();
$id = null;
if ($row != null){
$id = $row['id'];
}
return $id;
}
/**
* @brief Save the feed and all its items into the database
* @param feed the feed to be saved
* @returns The id of the feed in the database table.
*/
//TODO: handle error case
public function save(OC_News_Feed $feed, $folderid){
$CONFIG_DBTYPE = OCP\Config::getSystemValue( "dbtype", "sqlite" );
if( $CONFIG_DBTYPE == 'sqlite' or $CONFIG_DBTYPE == 'sqlite3' ){
$_ut = "strftime('%s','now')";
} elseif($CONFIG_DBTYPE == 'pgsql') {
$_ut = 'date_part(\'epoch\',now())::integer';
} else {
$_ut = "UNIX_TIMESTAMP()";
}
$title = $feed->getTitle();
$url = htmlspecialchars_decode($feed->getUrl());
if(empty($title)) {
$l = OC_L10N::get('news');
$title = $l->t('no title');
}
//FIXME: Detect when feed contains already a database id
$feedid = $this->findIdFromUrl($url);
if ($feedid == null){
$query = OCP\DB::prepare("
INSERT INTO " . self::tableName .
"(url, title, favicon_link, folder_id, user_id, added, lastmodified)
VALUES (?, ?, ?, ?, ?, $_ut, $_ut)
");
$params=array(
$url,
htmlspecialchars_decode($title),
$feed->getFavicon(),
$folderid,
$this->userid
);
$query->execute($params);
$feedid = OCP\DB::insertid(self::tableName);
}
$feed->setId($feedid);
$itemMapper = new OC_News_ItemMapper();
$items = $feed->getItems();
foreach($items as $item){
$itemMapper->save($item, $feedid);
}
return $feedid;
}
public function deleteById($id){
if ($id == null) {
return false;
}
$stmt = OCP\DB::prepare('DELETE FROM ' . self::tableName .' WHERE id = ?');
$result = $stmt->execute(array($id));
$itemMapper = new OC_News_ItemMapper();
//TODO: handle the value that the execute returns
$itemMapper->deleteAll($id);
return true;
}
public function delete(OC_News_Feed $feed){
$id = $feed->getId();
return deleteById($id);
}
public function deleteAll($folderid){
if ($folderid == null) {
return false;
}
$stmt = OCP\DB::prepare('SELECT id FROM ' . self::tableName . ' WHERE folder_id = ?');
$result = $stmt->execute(array($folderid));
while ($row = $result->fetchRow()) {
if(!self::deleteById($row['id']))
return false;
}
return true;
}
}
|