mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-09 01:24:07 +01:00
434 lines
15 KiB
PHP
434 lines
15 KiB
PHP
<?php
|
|
/**
|
|
* API - Interapplicaton links BO layer
|
|
*
|
|
* Links have two ends each pointing to an entry, each entry is a double:
|
|
* - app app-name or directory-name of an egw application, eg. 'infolog'
|
|
* - id this is the id, eg. an integer or a tupple like '0:INBOX:1234'
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @copyright 2001-2008 by RalfBecker@outdoor-training.de
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @package api
|
|
* @subpackage link
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* generalized linking between entries of eGroupware apps - SO layer
|
|
*
|
|
* All vars passed to this class get correct escaped to prevent query insertion.
|
|
*
|
|
* All methods are now static!
|
|
*/
|
|
class solink
|
|
{
|
|
/**
|
|
* Name of the links table
|
|
*/
|
|
const TABLE = 'egw_links';
|
|
/**
|
|
* Turns on debug-messages
|
|
*/
|
|
const DEBUG = false;
|
|
/**
|
|
* Reference to the global db-class
|
|
*
|
|
* @var egw_db
|
|
*/
|
|
private static $db;
|
|
/**
|
|
* Reference to current user from $GLOBALS['egw_info']['user']['account_id']
|
|
*
|
|
* @var int
|
|
*/
|
|
protected static $user;
|
|
|
|
/**
|
|
* creats a link between $app1,$id1 and $app2,$id2
|
|
*
|
|
* @param string $app1 appname of 1. endpoint of the link
|
|
* @param string $id1 id in $app1
|
|
* @param string $app2 appname of 2. endpoint of the link
|
|
* @param string $id2 id in $app2
|
|
* @param string $remark='' Remark to be saved with the link (defaults to '')
|
|
* @param int $owner=0 Owner of the link (defaults to user)
|
|
* @return boolean/int False (for db or param-error) or link_id for success
|
|
*/
|
|
static function link( $app1,$id1,$app2,$id2,$remark='',$owner=0,$lastmod=0 )
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>solink.link('$app1',$id1,'$app2',$id2,'$remark',$owner)</p>\n";
|
|
}
|
|
if ($app1 == $app2 && $id1 == $id2 ||
|
|
$id1 == '' || $id2 == '' || $app1 == '' || $app2 == '')
|
|
{
|
|
return False; // dont link to self or other nosense
|
|
}
|
|
if ($link = self::get_link($app1,$id1,$app2,$id2))
|
|
{
|
|
if ($link['link_remark'] != $remark)
|
|
{
|
|
self::update_remark($link['link_id'],$remark);
|
|
}
|
|
return $link['link_id']; // link alread exist
|
|
}
|
|
if (!$owner)
|
|
{
|
|
$owner = self::$user;
|
|
}
|
|
return self::$db->insert(self::TABLE,array(
|
|
'link_app1' => $app1,
|
|
'link_id1' => $id1,
|
|
'link_app2' => $app2,
|
|
'link_id2' => $id2,
|
|
'link_remark' => $remark,
|
|
'link_lastmod' => $lastmod ? $lastmod : time(),
|
|
'link_owner' => $owner,
|
|
),False,__LINE__,__FILE__) ? self::$db->get_last_insert_id(self::TABLE,'link_id') : false;
|
|
}
|
|
|
|
/**
|
|
* update the remark of a link
|
|
*
|
|
* @param int $link_id link to update
|
|
* @param string $remark new text for the remark
|
|
* @return boolean true on success, else false
|
|
*/
|
|
static function update_remark($link_id,$remark)
|
|
{
|
|
return self::$db->update(self::TABLE,array(
|
|
'link_remark' => $remark,
|
|
'link_lastmod' => time(),
|
|
),array(
|
|
'link_id' => $link_id,
|
|
),__LINE__,__FILE__);
|
|
}
|
|
|
|
/**
|
|
* returns array of links to $app,$id
|
|
*
|
|
* @param string $app appname
|
|
* @param string/array $id id(s) in $app
|
|
* @param string $only_app if set return only links from $only_app (eg. only addressbook-entries) or NOT from if $only_app[0]=='!'
|
|
* @param string $order defaults to newest links first
|
|
* @param boolean $deleted Include links that have been flagged as deleted, waiting for purge of linked record.
|
|
* @return array id => links pairs if $id is an array or just the links (only_app: ids) or empty array if no matching links found
|
|
*/
|
|
static function get_links( $app,$id,$only_app='',$order='link_lastmod DESC',$deleted=false )
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>solink.get_links($app,".print_r($id,true).",$only_app,$order,$deleted)</p>\n";
|
|
}
|
|
if (($not_only = $only_app[0] == '!'))
|
|
{
|
|
$only_app = substr($only_app,1);
|
|
}
|
|
#var_dump($not_only);echo "$only_app<br>";
|
|
$links = array();
|
|
foreach(self::$db->select(self::TABLE,'*',self::$db->expression(self::TABLE,'((',array(
|
|
'link_app1' => $app,
|
|
'link_id1' => $id,
|
|
),') OR (',array(
|
|
'link_app2' => $app,
|
|
'link_id2' => $id,
|
|
),'))',
|
|
$deleted ? '' : ' AND deleted IS NULL'
|
|
),__LINE__,__FILE__,False,$order ? " ORDER BY $order" : '') as $row)
|
|
{
|
|
// check if left side (1) is one of our targets --> add it
|
|
if ($row['link_app1'] == $app && in_array($row['link_id1'],(array)$id))
|
|
{
|
|
self::_add2links($row,true,$only_app,$not_only,$links);
|
|
}
|
|
// check if right side (2) is one of our targets --> add it (both can be true for multiple targets!)
|
|
if ($row['link_app2'] == $app && in_array($row['link_id2'],(array)$id))
|
|
{
|
|
self::_add2links($row,false,$only_app,$not_only,$links);
|
|
}
|
|
}
|
|
return is_array($id) ? $links : ($links[$id] ? $links[$id] : array());
|
|
}
|
|
|
|
private function _add2links($row,$left,$only_app,$not_only,array &$links)
|
|
{
|
|
$linked_app = $left ? $row['link_app2'] : $row['link_app1'];
|
|
$linked_id = $left ? $row['link_id2'] : $row['link_id1'];
|
|
$app_id = $left ? $row['link_id1'] : $row['link_id2'];
|
|
if ($only_app && $not_only == ($linked_app == $only_app) || !$GLOBALS['egw_info']['user']['apps'][$linked_app])
|
|
{
|
|
#echo "$linked_app == $only_app, ";var_dump($linked_app == $only_app);echo " ->dont return a link<br>";
|
|
return;
|
|
}
|
|
#echo "returning ".(($only_app && !$not_only) ? " linkid:".$linked_id : " full array with linkid $linked_id")."<br>";
|
|
$links[$app_id][$row['link_id']] = ($only_app && !$not_only) ? $linked_id : array(
|
|
'app' => $linked_app,
|
|
'id' => $linked_id,
|
|
'remark' => $row['link_remark'],
|
|
'owner' => $row['link_owner'],
|
|
'lastmod' => $row['link_lastmod'],
|
|
'link_id' => $row['link_id'],
|
|
);
|
|
}
|
|
|
|
/**
|
|
* returns data of a link
|
|
*
|
|
* @param ing/string $app_link_id > 0 link_id of link or app-name of link
|
|
* @param string $id='' id in $app, if no integer link_id given in $app_link_id
|
|
* @param string $app2='' appname of 2. endpoint of the link, if no integer link_id given in $app_link_id
|
|
* @param string $id2='' id in $app2, if no integer link_id given in $app_link_id
|
|
* @return array with link-data or False
|
|
*/
|
|
static function get_link($app_link_id,$id='',$app2='',$id2='')
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>solink.get_link('$app_link_id',$id,'$app2','$id2')</p>\n";
|
|
}
|
|
if ((int) $app_link_id > 0)
|
|
{
|
|
$where = array('link_id' => $app_link_id);
|
|
}
|
|
else
|
|
{
|
|
if ($app_link_id == '' || $id == '' || $app2 == '' || $id2 == '')
|
|
{
|
|
return False;
|
|
}
|
|
$where = self::$db->expression(self::TABLE,'(',array(
|
|
'link_app1' => $app_link_id,
|
|
'link_id1' => $id,
|
|
'link_app2' => $app2,
|
|
'link_id2' => $id2,
|
|
),') OR (',array(
|
|
'link_app2' => $app_link_id,
|
|
'link_id2' => $id,
|
|
'link_app1' => $app2,
|
|
'link_id1' => $id2,
|
|
),')');
|
|
}
|
|
foreach(self::$db->select(self::TABLE,'*',$where,__LINE__,__FILE__) as $row)
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
_debug_array($row);
|
|
}
|
|
return $row;
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/**
|
|
* Remove link with $link_id or all links matching given params
|
|
*
|
|
* @param $link_id link-id to remove if > 0
|
|
* @param string $app='' app-name of links to remove
|
|
* @param string $id='' id in $app or '' remove all links from $app
|
|
* @param int $owner=0 account_id to delete all links of a given owner, or 0
|
|
* @param string $app2='' appname of 2. endpoint of the link
|
|
* @param string $id2='' id in $app2
|
|
* @param boolean $hold_for_purge Don't really delete the link, just mark it as deleted and wait for final delete of linked entry
|
|
* @return array with deleted links
|
|
*/
|
|
static function &unlink($link_id,$app='',$id='',$owner=0,$app2='',$id2='',$hold_for_purge=false)
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>solink.unlink($link_id,$app,$id,$owner,$app2,$id2)</p>\n";
|
|
}
|
|
if ((int)$link_id > 0)
|
|
{
|
|
$where = array('link_id' => $link_id);
|
|
}
|
|
elseif ($app == '' AND $owner == '')
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
if ($app != '' && $app2 == '')
|
|
{
|
|
$check1 = array('link_app1' => $app);
|
|
$check2 = array('link_app2' => $app);
|
|
if ($id != '')
|
|
{
|
|
$check1['link_id1'] = $id;
|
|
$check2['link_id2'] = $id;
|
|
}
|
|
$where = self::$db->expression(self::TABLE,'((',$check1,') OR (',$check2,'))');
|
|
}
|
|
elseif ($app != '' && $app2 != '')
|
|
{
|
|
$where = self::$db->expression(self::TABLE,'(',array(
|
|
'link_app1' => $app,
|
|
'link_id1' => $id,
|
|
'link_app2' => $app2,
|
|
'link_id2' => $id2,
|
|
),') OR (',array(
|
|
'link_app1' => $app2,
|
|
'link_id1' => $id2,
|
|
'link_app2' => $app,
|
|
'link_id2' => $id,
|
|
),')');
|
|
}
|
|
if ($owner)
|
|
{
|
|
if ($app) $where = array($where);
|
|
$where['link_owner'] = $owner;
|
|
}
|
|
}
|
|
$deleted = array();
|
|
foreach(self::$db->select(self::TABLE,'*',$where,__LINE__,__FILE__) as $row)
|
|
{
|
|
$deleted[] = $row;
|
|
}
|
|
if($hold_for_purge)
|
|
{
|
|
self::$db->update(self::TABLE,array('deleted'=> time()), $where, __LINE__,__FILE__);
|
|
}
|
|
else
|
|
{
|
|
self::$db->delete(self::TABLE,$where,__LINE__,__FILE__);
|
|
}
|
|
|
|
return $deleted;
|
|
}
|
|
|
|
/**
|
|
* Restore links being held as deleted waiting for purge of linked record (un-delete)
|
|
*
|
|
* @param string $app='' app-name of links to remove
|
|
* @param string $id='' id in $app or '' remove all links from $app
|
|
*/
|
|
static function restore($app, $id)
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>solink.restore($app,$id)</p>\n";
|
|
}
|
|
if ($app == '')
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
$check1 = array('link_app1' => $app);
|
|
$check2 = array('link_app2' => $app);
|
|
if ($id != '')
|
|
{
|
|
$check1['link_id1'] = $id;
|
|
$check2['link_id2'] = $id;
|
|
}
|
|
$where = self::$db->expression(self::TABLE,'((',$check1,') OR (',$check2,'))');
|
|
self::$db->update(self::TABLE,array('deleted'=> null), $where, __LINE__,__FILE__);
|
|
}
|
|
|
|
/**
|
|
* Changes ownership of all links from $owner to $new_owner
|
|
*
|
|
* This is needed when a user/account gets deleted
|
|
* Does NOT change the modification-time
|
|
*
|
|
* @param int $owner acount_id of owner to change
|
|
* @param int $new_owner account_id of new owner
|
|
* @return int number of links changed
|
|
*/
|
|
static function chown($owner,$new_owner)
|
|
{
|
|
if ((int)$owner <= 0 || (int) $new_owner <= 0)
|
|
{
|
|
return 0;
|
|
}
|
|
self::$db->update(self::TABLE,array('owner'=>$new_owner),array('owner'=>$owner),__LINE__,__FILE__);
|
|
|
|
return self::$db->affected_rows();
|
|
}
|
|
|
|
/**
|
|
* Get all links from a given app's entries to an other app's entries, which both link to the same 3. app and id
|
|
*
|
|
* Example:
|
|
* I search all timesheet's linked to a given project and id(s), who are also linked to other entries,
|
|
* which link to the same project:
|
|
*
|
|
* ($app='timesheet'/some id) <--a--> (other app/other id) <--b--> ($t_app='projectmanager'/$t_id=$pm_id)
|
|
* ^ ^
|
|
* +---------------------------c-----------------------------------------+
|
|
*
|
|
* bolink::get_3links('timesheet','projectmanager',$pm_id) returns the links (c) between the timesheet and the project,
|
|
* plus the other app/id in the keys 'app3' and 'id3'
|
|
*
|
|
* @param string $app app the returned links are linked on one side (atm. this must be link_app1!)
|
|
* @param string $target_app app the returned links other side link also to
|
|
* @param string/array $target_id=null id(s) the returned links other side link also to
|
|
* @param boolean $just_app_ids=false return array with link_id => app_id pairs, not the full link record
|
|
* @return array with links from entries from $app to $target_app/$target_id plus the other (b) link_id/app/id in the keys 'link3'/'app3'/'id3'
|
|
*/
|
|
static function get_3links($app,$target_app,$target_id=null,$just_app_ids=false)
|
|
{
|
|
$table = self::TABLE;
|
|
$arrayofselects=array(
|
|
// retrieve the type of links, where the relation is realized as timesheet->infolog/tracker via infolog->projectmanager to timesheet->projectmanager
|
|
array('table'=>self::TABLE,
|
|
'cols'=>'c.*,b.link_app1 AS app3,b.link_id1 AS id3,b.link_id AS link3',
|
|
'where'=>'a.link_app1='.self::$db->quote($app).' AND c.link_app2='.self::$db->quote($target_app).
|
|
(!$target_id ? '' : self::$db->expression(self::TABLE,' AND c.',array('link_id2' => $target_id))),
|
|
'join'=>" a
|
|
JOIN $table b ON a.link_id2=b.link_id1 AND a.link_app2=b.link_app1
|
|
JOIN $table c ON a.link_id1=c.link_id1 AND a.link_app1=c.link_app1 AND a.link_id!=c.link_id AND c.link_app2=b.link_app2 AND c.link_id2=b.link_id2",
|
|
),
|
|
// retrieve the type of links, where the relation is realized as timesheet->infolog/tracker and projectmanager->timesheet
|
|
array('table'=>self::TABLE,
|
|
'cols'=>'b.link_id, b.link_app2 as app1, b.link_id2 as id1, b.link_app1 as app2, b.link_id1 as id2, b.link_remark,b.link_lastmod,b.link_owner,b.deleted,c.link_app1 AS app3,c.link_id1 AS id3,c.link_id AS link3',
|
|
'where'=>'a.link_app1='.self::$db->quote($app).' AND b.link_app1='.self::$db->quote($target_app).
|
|
(!$target_id ? '' : self::$db->expression(self::TABLE,' AND b.',array('link_id1' => $target_id))),
|
|
'join'=>" a
|
|
JOIN $table b ON a.link_id1=b.link_id2 AND a.link_app1=b.link_app2
|
|
JOIN $table c ON a.link_id2=c.link_id1 AND a.link_app2=c.link_app1 AND a.link_id!=c.link_id AND c.link_app2=b.link_app1 AND c.link_id2=b.link_id1",
|
|
),
|
|
// retrieve the type of links, where the relation is realized as timesheet->projectmanager and infolog->timesheet
|
|
array('table'=>self::TABLE,
|
|
'cols'=>'a.*,c.link_app1 AS app3,c.link_id1 AS id3,c.link_id AS link3',
|
|
'where'=>'a.link_app1='.self::$db->quote($app).' AND a.link_app2='.self::$db->quote($target_app).
|
|
(!$target_id ? '' : self::$db->expression(self::TABLE,' AND a.',array('link_id2' => $target_id))),
|
|
'join'=>" a
|
|
JOIN $table b ON a.link_id1=b.link_id2 AND a.link_app1=b.link_app2
|
|
JOIN $table c ON a.link_id2=c.link_id2 AND a.link_app2=c.link_app2 AND a.link_id!=c.link_id AND c.link_app1=b.link_app1 AND c.link_id1=b.link_id1",
|
|
),
|
|
);
|
|
$links = array();
|
|
foreach(self::$db->union($arrayofselects,__LINE__,__FILE__) as $row)
|
|
{
|
|
if ($just_app_ids)
|
|
{
|
|
if ($row['link_app1'] == $target_app && (is_null($target_id) || in_array($row['link_id1'],(array)$target_id)))
|
|
{
|
|
$links[$row['link_id']] = $row['link_id2'];
|
|
}
|
|
else
|
|
{
|
|
$links[$row['link_id']] = $row['link_id1'];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$links[] = egw_db::strip_array_keys($row,'link_');
|
|
}
|
|
}
|
|
return $links;
|
|
}
|
|
|
|
/**
|
|
* Initialise our static vars
|
|
*/
|
|
static function init_static( )
|
|
{
|
|
self::$db = $GLOBALS['egw']->db;
|
|
self::$user =& $GLOBALS['egw_info']['user']['account_id'];
|
|
}
|
|
}
|
|
solink::init_static();
|