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* API/preferences: caching preferences in instance cache instead of session, to get immediate update in long running sessions (eg. sync) and get smaller sessions

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This commit is contained in:
Ralf Becker 2012-08-07 13:57:56 +00:00
parent 6fa4cc864e
commit 0e0993863c
1 changed files with 78 additions and 46 deletions
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124
phpgwapi/inc/class.preferences.inc.php
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@ -130,6 +130,64 @@ class preferences
self::__construct();
}
/**
* Magic function to avoid storing perferences in session, as they get re-read on each request by egw_session::verify()
*
* @return array with class vars to store
*/
function __sleep()
{
$vars = array_keys(get_object_vars($this));
return array_diff($vars, array('data', 'user', 'group', 'default', 'forced', 'session'));
}
/**
* Lifetime in seconds of cached items 1d
*/
const CACHE_LIFETIME = 86400;
/**
* Read preferences of requested id(s)
*
* @param int|array $ids
* @return array id => app => preference data
*/
function cache_read($ids)
{
$prefs = $db_read = array();
foreach((array)$ids as $id)
{
$prefs[$id] = egw_cache::getInstance(__CLASS__, $id);
if (!isset($prefs[$id])) $db_read[] = $id;
}
if ($db_read)
{
foreach($this->db->select($this->table,'*',array('preference_owner' => $db_read),__LINE__,__FILE__) as $row)
{
// The following replacement is required for PostgreSQL to work
$app = trim($row['preference_app']);
$value = unserialize($row['preference_value']);
if($value === false)
{
// manually retrieve the string lengths of the serialized array if unserialize failed
$value = unserialize(preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.mb_strlen('$2','8bit').':\"$2\";'", $row['preference_value']));
}
$this->unquote($value);
$prefs[$row['preference_owner']][$app] = $value;
}
foreach($db_read as $id)
{
if (!isset($prefs[$id])) $prefs[$id] = array();
egw_cache::setInstance(__CLASS__, $id, $prefs[$id]);
}
}
//error_log(__METHOD__.'('.array2string($ids).') read-from-db='.array2string($db_read));
return $prefs;
}
/**************************************************************************\
* These are the standard $this->account_id specific functions *
\**************************************************************************/
@ -201,12 +259,12 @@ class preferences
$GLOBALS['egw']->accounts->get_account_name($this->account_id,$lid,$fname,$lname);
$this->values = array( // standard notify replacements
'fullname' => $GLOBALS['egw']->common->display_fullname('',$fname,$lname),
'fullname' => common::display_fullname('',$fname,$lname),
'firstname' => $fname,
'lastname' => $lname,
'domain' => $GLOBALS['egw_info']['server']['mail_suffix'],
'email' => $this->email_address($this->account_id),
'date' => $GLOBALS['egw']->common->show_date('',$GLOBALS['egw_info']['user']['preferences']['common']['dateformat']),
'date' => common::show_date('',$GLOBALS['egw_info']['user']['preferences']['common']['dateformat']),
);
// do this first, as it might be already contain some substitues
//
@ -280,47 +338,33 @@ class preferences
*/
function read_repository($use_session=true)
{
$this->session = $use_session ? $GLOBALS['egw']->session->appsession('preferences','preferences') : array();
$this->session = $use_session ? egw_cache::getSession('preferences','preferences') : array();
if (!is_array($this->session))
{
$this->session = array();
}
$this->forced = $this->default = $this->user = $this->group = array();
$primary_group = $GLOBALS['egw']->accounts->id2name($this->account_id,'account_primary_group');
foreach($this->db->select($this->table,'*',array('preference_owner' => array(
$primary_group = accounts::id2name($this->account_id, 'account_primary_group');
foreach($this->cache_read(array(
self::DEFAULT_ID,
self::FORCED_ID,
$this->account_id,
$primary_group+self::DEFAULT_ID, // need to offset it with DEFAULT_ID = -2!
)),__LINE__,__FILE__) as $row)
)) as $id => $values)
{
// The following replacement is required for PostgreSQL to work
$app = trim($row['preference_app']);
$value = unserialize($row['preference_value']);
if($value === false)
{
// manually retrieve the string lengths of the serialized array if unserialize failed
$value = unserialize(preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.mb_strlen('$2','8bit').':\"$2\";'", $row['preference_value']));
}
$this->unquote($value);
if (!is_array($value))
{
continue;
}
switch($row['preference_owner'])
switch($id)
{
case self::FORCED_ID:
$this->forced[$app] = $value;
$this->forced = $values;
break;
case self::DEFAULT_ID:
//if ($app=='common') error_log(__METHOD__.__LINE__.array2string($value));
$this->default[$app] = $value;
$this->default = $values;
break;
case $this->account_id: // user
$this->user[$app] = $value;
$this->user = $values;
break;
default:
$this->group[$app] = $value;
$this->group = $values;
break;
}
}
@ -387,10 +431,6 @@ class preferences
echo 'group<pre>'; print_r($this->group); echo "</pre>\n";
echo 'effectiv<pre>'; print_r($this->data); echo "</pre>\n";
}
//error_log(__METHOD__.__LINE__.'->user: remote_application_url:'.array2string($this->user['common']['remote_application_url']));
//error_log(__METHOD__.__LINE__.'->default: remote_application_url:'.array2string($this->default['common']['remote_application_url']));
//error_log(__METHOD__.__LINE__.'->forced: remote_application_url:'.array2string($this->forced['common']['remote_application_url']));
//error_log(__METHOD__.__LINE__.'->effective: remote_application_url:'.array2string($this->data['common']['remote_application_url']));
$this->check_set_tz_offset();
return $this->data;
@ -421,14 +461,14 @@ class preferences
*/
function check_set_tz_offset()
{
$prefs =& $this->data['common'];
$prefs =& $GLOBALS['egw_info']['user']['preferences']['common'];
if (!empty($prefs['tz']))
{
egw_time::setUserPrefs($prefs['tz'],$prefs['dateformat'],$prefs['timeformat']);
// set the old preference for compatibilty with old code
$GLOBALS['egw_info']['user']['preferences']['common']['tz_offset'] = egw_time::tz_offset_s()/3600;
//echo "<p>".__METHOD__."() tz=$prefs[tz] --> tz_offset={$GLOBALS['egw_info']['user']['preferences']['common']['tz_offset']}</p>\n";
$prefs['tz_offset'] = egw_time::tz_offset_s()/3600;
//echo "<p>".__METHOD__."() tz=$prefs[tz] --> tz_offset=$prefs[tz_offset]</p>\n";
// ToDo: get rid of that
if (isset($GLOBALS['egw']) && ($GLOBALS['egw'] instanceof egw))
@ -719,14 +759,15 @@ class preferences
}
//echo "<p>preferences::save_repository(,$type): account_id=$account_id, prefs="; print_r($prefs); echo "</p>\n";
if (isset($GLOBALS['egw_setup']) || !$GLOBALS['egw']->acl->check('session_only_preferences',1,'preferences'))
if (isset($GLOBALS['egw_setup']) || !$GLOBALS['egw']->acl->check('session_only_preferences',1,'preferences') &&
(!($old_prefs = $this->cache_read($account_id)) || $old_prefs[$account_id] != $prefs))
{
$this->db->transaction_begin();
$this->db->delete($this->table,array('preference_owner' => $account_id),__LINE__,__FILE__);
foreach($prefs as $app => $value)
{
if (!is_array($value))
if (!is_array($value) || !$value)
{
continue;
}
@ -741,17 +782,8 @@ class preferences
}
$this->db->transaction_commit();
if (!isset($GLOBALS['egw_setup']))
{
// no need to invalidate session cache, if we write the prefs to the session too
$egw = unserialize($_SESSION[egw_session::EGW_OBJECT_CACHE]);
$egw->preferences = $this;
$_SESSION[egw_session::EGW_OBJECT_CACHE] = serialize($egw);
}
}
if (!isset($GLOBALS['egw_setup']))
{
$_SESSION[egw_session::EGW_INFO_CACHE]['user']['preferences'] = $GLOBALS['egw_info']['user']['preferences'] = $this->data;
// update instance-wide cache
egw_cache::setInstance(__CLASS__, $account_id, $prefs);
}
return $this->data;
}
@ -843,7 +875,7 @@ class preferences
if (!isset($GLOBALS['egw_info']['user']['preferences']['common']['lang']) ||
!$GLOBALS['egw_info']['user']['preferences']['common']['lang'])
{
$this->add('common','lang',$GLOBALS['egw']->common->getPreferredLanguage());
$this->add('common','lang',common::getPreferredLanguage());
$preferences_update = True;
}
if ($preferences_update)