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- modification : RSS feed work only with a given feed identifier. Thus we

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can avoid fixed frequency notification to concentrate on variable
  frequency notification, which is much more interesting. To do this, feeds
  have moved to a dedicated table allowing each user (including guest user)
  to have more than on feed.


git-svn-id: http://piwigo.org/svn/trunk@833 68402e56-0260-453c-a942-63ccdbb3a9ee
This commit is contained in:
plegall
2005-08-19 13:54:40 +00:00
parent c8bf225cd4
commit ede184cacc
11 changed files with 93 additions and 158 deletions
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185
feed.php
View File

@@ -268,18 +268,23 @@ if (isset($_GET['feed'])
and preg_match('/^[A-Za-z0-9]{50}$/', $_GET['feed']))
{
$query = '
SELECT user_id AS id,
status,
last_feed_check
FROM '.USER_INFOS_TABLE.'
WHERE feed_id = \''.$_GET['feed'].'\'
SELECT uf.user_id AS id,
ui.status,
uf.last_check,
u.'.$conf['user_fields']['username'].' AS username
FROM '.USER_FEED_TABLE.' AS uf
INNER JOIN '.USER_INFOS_TABLE.' AS ui
ON ui.user_id = uf.user_id
INNER JOIN '.USERS_TABLE.' AS u
ON u.'.$conf['user_fields']['id'].' = uf.user_id
WHERE uf.id = \''.$_GET['feed'].'\'
;';
$user = mysql_fetch_array(pwg_query($query));
}
else
{
$user = array('id' => $conf['guest_id'],
'status' => 'guest');
echo l10n('Unknown feed identifier');
exit();
}
$user['forbidden_categories'] = calculate_permissions($user['id'],
@@ -294,153 +299,45 @@ list($dbnow) = mysql_fetch_row(pwg_query('SELECT NOW();'));
include_once(PHPWG_ROOT_PATH.'include/feedcreator.class.php');
$rss = new UniversalFeedCreator();
// $rss->useCached(); // use cached version if age<1 hour
$rss->title = 'PhpWebGallery notifications';
$rss->link = 'http://phpwebgallery.net';
$rss->title = $conf['gallery_title'].', notifications';
$rss->title.= ' (as '.$user['username'].')';
$rss->link = $conf['gallery_url'];
// +-----------------------------------------------------------------------+
// | Feed creation |
// +-----------------------------------------------------------------------+
if ($conf['guest_id'] != $user['id'])
{
$news = news($user['last_feed_check'], $dbnow);
$news = news($user['last_check'], $dbnow);
if (count($news) > 0)
{
// echo '<pre>';
// print_r($news);
// echo '</pre>';
$item = new FeedItem();
$item->title = sprintf(l10n('New on %s'), $dbnow);
$item->link = 'http://phpwebgallery.net';
// content creation
$item->description = '<ul>';
foreach ($news as $line)
{
$item->description.= '<li>'.$line.'</li>';
}
$item->description.= '</ul>';
$item->descriptionHtmlSyndicated = true;
$item->date = $dbnow;
$item->author = 'PhpWebGallery notifier';
if (count($news) > 0)
{
$item = new FeedItem();
$item->title = sprintf(l10n('New on %s'), $dbnow);
$item->link = 'http://phpwebgallery.net';
$rss->addItem($item);
// content creation
$item->description = '<ul>';
foreach ($news as $line)
{
$item->description.= '<li>'.$line.'</li>';
}
$item->description.= '</ul>';
$item->descriptionHtmlSyndicated = true;
$item->date = ts_to_iso8601(mysqldt_to_ts($dbnow));
$item->author = 'PhpWebGallery notifier';
$rss->addItem($item);
}
$query = '
UPDATE '.USER_INFOS_TABLE.'
SET last_feed_check = \''.$dbnow.'\'
WHERE user_id = '.$user['id'].'
$query = '
UPDATE '.USER_FEED_TABLE.'
SET last_check = \''.$dbnow.'\'
WHERE id = \''.$_GET['feed'].'\'
;';
pwg_query($query);
}
else
{
// The feed is filled with periodical blocks of informations. Date
// "checkpoints" cut the blocks. The first step is to find those
// checkpoints according to the configured feed period.
//
// checkpoints are first calculated in Unix timestamp (number of seconds
// since 1970-01-01 00:00:00 GMT) and then converted to MySQL datetime
// format.
$now = explode_mysqldt($dbnow);
$checkpoints = array();
$checkpoints[0] = mysqldt_to_ts($dbnow);
// if the feed period was not configured the right way (ie among the list
// of possible values), the configuration is overloaded here.
if (!in_array($conf['feed_period'],
array('hour', 'half day', 'day', 'week', 'month')))
{
$conf['feed_period'] = 'week';
}
// foreach feed_period possible, we need to find the beginning of the
// current period. The variable $timeshift contains the shift to apply to
// each checkpoint to find the previous one with strtotime function
switch ($conf['feed_period'])
{
// 2005-07-14 23:36:19 => 2005-07-14 23:00:00
case 'hour' :
{
$checkpoints[1] = mktime($now['hour'],0,0,
$now['month'],$now['day'],$now['year']);
$timeshift = '1 hour ago';
break;
}
// 2005-07-14 23:36:19 => 2005-07-14 12:00:00
case 'half day' :
{
$checkpoints[1] = mktime(($now['hour'] < 12) ? 0 : 12,0,0,
$now['month'],$now['day'],$now['year']);
$timeshift = '12 hours ago';
break;
}
// 2005-07-14 23:36:19 => 2005-07-14 00:00:00
case 'day' :
{
$checkpoints[1] = mktime(0,0,0,$now['month'],$now['day'],$now['year']);
$timeshift = '1 day ago';
break;
}
// 2005-07-14 23:36:19 => 2005-07-11 00:00:00
case 'week' :
{
$checkpoints[1] = strtotime('last monday', $checkpoints[0]);
$timeshift = '1 week ago';
break;
}
// 2005-07-14 23:36:19 => 2005-07-01 00:00:00
case 'month' :
{
$checkpoints[1] = mktime(0,0,0,$now['month'],1,$now['year']);
$timeshift = '1 month ago';
break;
}
}
for ($i = 2; $i <= 11; $i++)
{
$checkpoints[$i] = strtotime($timeshift, $checkpoints[$i-1]);
}
// converts all timestamp values to MySQL datetime format
$checkpoints = array_map('ts_to_mysqldt', $checkpoints);
for ($i = 1; $i <= max(array_keys($checkpoints)); $i++)
{
$news = news($checkpoints[$i], $checkpoints[$i-1]);
if (count($news) > 0)
{
$item = new FeedItem();
$item->title = sprintf(l10n('New from %s to %s'),
$checkpoints[$i],
$checkpoints[$i-1]);
$item->link = 'http://phpwebgallery.net';
// content creation
$item->description = '<ul>';
foreach ($news as $line)
{
$item->description.= '<li>'.$line.'</li>';
}
$item->description.= '</ul>';
$item->descriptionHtmlSyndicated = true;
$item->date = ts_to_iso8601(mysqldt_to_ts($checkpoints[$i-1]));
$item->author = 'PhpWebGallery notifier';
$rss->addItem($item);
}
}
}
pwg_query($query);
// send XML feed
echo $rss->saveFeed('RSS2.0', '', true);