egroupware/phpgwapi/inc/class.categories.inc.php
2009-12-07 16:15:39 +00:00

815 lines
23 KiB
PHP

<?php
/**
* API - Categories
*
* @link http://www.egroupware.org
* @author Joseph Engo <jengo@phpgroupware.org>
* @author Bettina Gille <ceb@phpgroupware.org>
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* Copyright (C) 2000, 2001 Joseph Engo, Bettina Gille
* Copyright (C) 2002, 2003 Bettina Gille
* Reworked 11/2005 by RalfBecker-AT-outdoor-training.de
* @license http://opensource.org/licenses/lgpl-license.php LGPL - GNU Lesser General Public License
* @package api
* @subpackage categories
* @access public
* @version $Id$
*/
/**
* class to manage categories in eGroupWare
*/
class categories
{
var $account_id;
var $app_name;
/**
* @var egw_db
*/
var $db;
var $total_records;
var $grants;
var $table = 'egw_categories';
var $cache_id2cat_data = array(); // a little bit of caching for id2name and return_single
/**
* constructor for categories class
*
* @param int/string $accountid='' account id or lid, default to current user
* @param string $app_name='' app name defaults to current app
*/
function categories($accountid='',$app_name = '')
{
if (!$app_name) $app_name = $GLOBALS['egw_info']['flags']['currentapp'];
$this->account_id = (int) get_account_id($accountid);
$this->app_name = $app_name;
$this->db = $GLOBALS['egw']->db;
####################################################
# resolving the group members/grants is very slow with ldap accounts backend
# let's skip it for the addressbook, if we are using the ldap accounts backend
####################################################
if($app_name == 'addressbook' && $GLOBALS['egw_info']['server']['account_repository'] == 'ldap') {
$this->grants = $GLOBALS['egw']->acl->get_grants($app_name, false);
} else {
$this->grants = $GLOBALS['egw']->acl->get_grants($app_name);
}
}
/**
* return sql for predifined filters
*
* @param string $type eiterh subs, mains, appandmains, appandsubs, noglobal or noglobalapp
* @return string with sql to add to the where clause
*/
function filter($type)
{
switch ($type)
{
case 'subs': $where = 'cat_parent != 0'; break;
case 'mains': $where = 'cat_parent = 0'; break;
case 'appandmains': $where = 'cat_appname='.$this->db->quote($this->app_name).' AND cat_parent = 0'; break;
case 'appandsubs': $where = 'cat_appname='.$this->db->quote($this->app_name).' AND cat_parent != 0'; break;
case 'noglobal': $where = 'cat_appname != '.$this->db->quote($this->app_name); break;
case 'noglobalapp': $where = 'cat_appname='.$this->db->quote($this->app_name).' AND cat_owner != '.(int)$this->account_id; break;
default: return False;
}
return $where;
}
/**
* returns the total number of categories for app, subs or mains
*
* @param $for one of either 'app' 'subs' or 'mains'
* @return integer count of categories
*/
function total($for = 'app')
{
switch($for)
{
case 'app': $where = array('cat_appname' => $this->app_name); break;
case 'appandmains': $where = array('cat_appname' => $this->app_name,'cat_parent' => 0); break;
case 'appandsubs': $where = array('cat_appname' => $this->app_name,'cat_parent != 0'); break;
case 'subs': $where = 'cat_parent != 0'; break;
case 'mains': $where = 'cat_parent = 0'; break;
default: return False;
}
return $this->db->select($this->table,'COUNT(*)',$where,__LINE__,__FILE__)->fetchSingle();
}
/**
* return_all_children
* returns array with id's of all children from $cat_id and $cat_id itself!
*
* @param $cat_id integer cat-id to search for
* @return array of cat-id's
*/
function return_all_children($cat_id)
{
$all_children = (array) $cat_id;
$children = $this->return_array('subs',0,False,'','','',True,$cat_id,-1,'id');
if (is_array($children) && count($children))
{
foreach($children as $child)
{
$all_children = array_merge($all_children,$this->return_all_children($child['id']));
}
}
//echo "<p>categories::return_all_children($cat_id)=(".implode(',',$all_children).")</p>\n";
return $all_children;
}
/**
* return an array populated with categories
*
* @param string $type defaults to 'all'
* @param int $start see $limit
* @param boolean $limit if true limited query starting with $start
* @param string $query='' query-pattern
* @param string $sort='' sort order, either defaults to 'ASC'
* @param string $order='' order by
* @param boolean $globals includes the global egroupware categories or not
* @param int $parent_id=0 if > 0 return subcats or $parent_id
* @param int $lastmod = -1 if > 0 return only cats modified since then
* @param string $column='' if column-name given only that column is returned, not the full array with all cat-data
* @return array or cats
*/
function return_array($type,$start,$limit = True,$query = '',$sort = '',$order = '',$globals = False, $parent_id = '', $lastmod = -1, $column = '')
{
if ($globals)
{
$global_cats = " OR cat_appname='phpgw'";
}
if (($filter = $this->filter($type))) $filter = ' AND '.$filter;
if (!$sort) $sort = 'ASC';
if (!empty($order) && preg_match('/^[a-zA-Z_(), ]+$/',$order) && (empty($sort) || preg_match('/^(ASC|DESC|asc|desc)$/',$sort)))
{
$ordermethod = 'ORDER BY '.$order.' '.$sort . ', cat_access ASC';
}
else
{
$ordermethod = 'ORDER BY cat_main, cat_level, cat_name, cat_access ASC';
}
if ($this->account_id == '-1')
{
$grant_cats = ' cat_owner=-1 ';
}
else
{
if (is_array($this->grants))
{
$grant_cats = ' (cat_owner=' . $this->account_id . " OR cat_owner=-1 OR cat_access='public' AND cat_owner IN (" . implode(',',array_keys($this->grants)) . ')) ';
}
else
{
$grant_cats = ' (cat_owner=' . $this->account_id . ' OR cat_owner=-1) ';
}
}
if ($parent_id > 0)
{
$parent_filter = ' AND cat_parent=' . (int)$parent_id;
}
if ($query)
{
$query = $this->db->quote('%'.$query.'%');
$querymethod = " AND (cat_name LIKE $query OR cat_description LIKE $query) ";
}
if($lastmod > 0)
{
$querymethod .= ' AND last_mod > ' . (int)$lastmod;
}
$where = '(cat_appname=' . $this->db->quote($this->app_name) . ' AND ' . $grant_cats . $global_cats . ')'
. $parent_filter . $querymethod . $filter;
$this->total_records = $this->db->select($this->table,'COUNT(*)',$where,__LINE__,__FILE__)->fetchSingle();
if (!$this->total_records) return false;
foreach($this->db->select($this->table,'*',$where,__LINE__,__FILE__,$limit ? (int) $start : false,$ordermethod) as $cat)
{
$cat = egw_db::strip_array_keys($cat,'cat_');
$cat['app_name'] = $cat['appname'];
$this->cache_id2cat_data[$cat['id']] = $cat;
if ($column)
{
$cats[] = array($column => isset($cat[$column]) ? $cat[$column] : $cat['id']);
}
else
{
$cats[] = $cat;
}
}
return $cats;
}
/**
* return a sorted array populated with categories
*
* @param int $start see $limit
* @param boolean $limit if true limited query starting with $start
* @param string $query='' query-pattern
* @param string $sort='' sort order, either defaults to 'ASC'
* @param string $order='' order by
* @param boolean $globals includes the global egroupware categories or not
* @param int $parent_id=0 if > 0 return subcats or $parent_id
* @return array with cats
*/
function return_sorted_array($start,$limit=True,$query='',$sort='',$order='',$globals=False, $parent_id=0)
{
if ($globals)
{
$global_cats = " OR cat_appname='phpgw'";
}
if (!$sort) $sort = 'ASC';
if (!empty($order) && preg_match('/^[a-zA-Z_, ]+$/',$order) && (empty($sort) || preg_match('/^(ASC|DESC|asc|desc)$/',$sort)))
{
$ordermethod = 'ORDER BY '.$order.' '.$sort . ', cat_access ASC';
}
else
{
$ordermethod = ' ORDER BY cat_name ASC, cat_access ASC';
}
if ($this->account_id == '-1')
{
$grant_cats = " cat_owner='-1' ";
}
else
{
if (is_array($this->grants))
{
$grant_cats = " (cat_owner='" . $this->account_id . "' OR cat_owner='-1' OR cat_access='public' AND cat_owner IN (" . implode(',',array_keys($this->grants)) . ")) ";
}
else
{
$grant_cats = " (cat_owner='" . $this->account_id . "' OR cat_owner='-1') ";
}
}
$parent_select = ' AND cat_parent=' . (int)$parent_id;
if ($query)
{
$query = $this->db->quote('%'.$query.'%');
$querymethod = " AND (cat_name LIKE $query OR cat_description LIKE $query) ";
}
$where = '(cat_appname=' . $this->db->quote($this->app_name) . ' AND ' . $grant_cats . $global_cats . ')' . $querymethod;
$parents = $cats = array();
foreach($this->db->select($this->table,'*',$where . $parent_select,__LINE__,__FILE__,false,$ordermethod) as $cat)
{
$cat = egw_db::strip_array_keys($cat,'cat_');
$cat['app_name'] = $cat['appname'];
$this->cache_id2cat_data[$cat['id']] = $cat;
$cats[] = $cat;
$parents[] = $cat['id'];
}
while (count($parents))
{
$sub_select = ' AND cat_parent IN (' . implode(',',$parents) . ')';
$parents = $children = array();
foreach($this->db->select($this->table,'*',$where . $sub_select,__LINE__,__FILE__,false, $ordermethod) as $cat)
{
$cat = egw_db::strip_array_keys($cat,'cat_');
$cat['app_name'] = $cat['appname'];
$this->cache_id2cat_data[$cat['id']] = $cat;
$parents[] = $cat['id'];
$children[$cat['parent']][] = $cat;
}
// sort the cats into the mains
if (count($children))
{
$cats2 = $cats;
$cats = array();
foreach($cats2 as $cat)
{
$cats[] = $cat;
if (isset($children[$cat['id']]))
{
foreach($children[$cat['id']] as $child)
{
$cats[] = $child;
}
}
}
}
}
$this->total_records = count($cats);
if ($limit)
{
return array_slice($cats,(int)$start,$GLOBALS['egw_info']['user']['preferences']['common']['maxmatchs']);
}
return $cats;
}
/**
* read a single category
*
* We use a shared cache together with id2name
*
* @param int $id id of category
* @return array/boolean array with one array of cat-data or false if cat not found
*/
function return_single($id = '')
{
if (!isset($this->cache_id2cat_data[$id]))
{
if (($cat = $this->db->select($this->table,'*',array('cat_id' => $id),__LINE__,__FILE__)->fetch()))
{
$cat = egw_db::strip_array_keys($cat,'cat_');
$cat['app_name'] = $cat['appname'];
}
$this->cache_id2cat_data[$id] = $cat;
}
return $this->cache_id2cat_data[$id] ? array($this->cache_id2cat_data[$id]) : false;
}
/**
* return into a select box, list or other formats
*
* @param string/array $format string 'select' or 'list', or array with all params
* @param string $type='' subs or mains
* @param int/array $selected - cat_id or array with cat_id values
* @param boolean $globals True or False, includes the global egroupware categories or not
* @return string populated with categories
*/
function formatted_list($format,$type='',$selected = '',$globals = False,$site_link = 'site')
{
if(is_array($format))
{
$type = ($format['type']?$format['type']:'all');
$selected = (isset($format['selected'])?$format['selected']:'');
$self = (isset($format['self'])?$format['self']:'');
$globals = (isset($format['globals'])?$format['globals']:True);
$site_link = (isset($format['site_link'])?$format['site_link']:'site');
$format = $format['format'] ? $format['format'] : 'select';
}
if (!is_array($selected))
{
$selected = explode(',',$selected);
}
if ($type != 'all')
{
$cats = $this->return_array($type,0,False,'','','',$globals);
}
else
{
$cats = $this->return_sorted_array(0,False,'','','',$globals);
}
if (!$cats) return '';
if($self)
{
foreach($cats as $key => $cat)
{
if ($cat['id'] == $self)
{
unset($cats[$key]);
}
}
}
switch ($format)
{
case 'select':
foreach($cats as $cat)
{
$s .= '<option value="' . $cat['id'] . '"';
if (in_array($cat['id'],$selected))
{
$s .= ' selected="selected"';
}
$s .= '>'.str_repeat('&nbsp;',$cat['level']);
$s .= $GLOBALS['egw']->strip_html($cat['name']);
if ($cat['app_name'] == 'phpgw' || $cat['owner'] == '-1')
{
$s .= ' &#9830;';
}
elseif ($cat['owner'] != $this->account_id)
{
if ($GLOBALS['egw_info']['user']['preferences']['common']['show_category_owner'])
{
$s .= ' &lt;' . $GLOBALS['egw']->accounts->id2name($cat['owner'], 'account_fullname') . '&gt;';
}
}
elseif ($cat['access'] == 'private')
{
$s .= ' &#9829;';
}
$s .= '</option>' . "\n";
}
break;
case 'list':
$space = '&nbsp;&nbsp;';
$s = '<table border="0" cellpadding="2" cellspacing="2">' . "\n";
foreach($cats as $cat)
{
$image_set = '&nbsp;';
if (in_array($cat['id'],$selected))
{
$image_set = '<img src="' . EGW_IMAGES_DIR . '/roter_pfeil.gif">';
}
if (($cat['level'] == 0) && !in_array($cat['id'],$selected))
{
$image_set = '<img src="' . EGW_IMAGES_DIR . '/grauer_pfeil.gif">';
}
$space_set = str_repeat($space,$cat['level']);
$s .= '<tr>' . "\n";
$s .= '<td width="8">' . $image_set . '</td>' . "\n";
$s .= '<td>' . $space_set . '<a href="' . $GLOBALS['egw']->link($site_link,'cat_id=' . $cat['id']) . '">'
. $GLOBALS['egw']->strip_html($cat['name'])
. '</a></td>' . "\n"
. '</tr>' . "\n";
}
$s .= '</table>' . "\n";
break;
}
return $s;
}
/**
* add a category
*
* @param array $value cat-data
* @return int new cat-id
*/
function add($values)
{
if ((int)$values['parent'] > 0)
{
$values['level'] = $this->id2name($values['parent'],'level')+1;
$values['main'] = $this->id2name($values['parent'],'main');
}
$values = array_merge(
array(
'app_name' => $this->app_name,
'access' => 'public',
),
$values);
$this->db->insert($this->table,array(
'cat_parent' => $values['parent'],
'cat_owner' => $this->account_id,
'cat_access' => $values['access'],
'cat_appname' => $values['app_name'],
'cat_name' => $values['name'],
'cat_description' => $values['descr'],
'cat_data' => $values['data'],
'cat_main' => $values['main'],
'cat_level' => $values['level'],
'last_mod' => time(),
),(int)$values['id'] > 0 ? array('cat_id' => $values['id']) : array(),__LINE__,__FILE__);
$id = (int)$values['id'] > 0 ? (int)$values['id'] : $this->db->get_last_insert_id($this->table,'cat_id');
if (!(int)$values['parent'])
{
$this->db->update($this->table,array('cat_main' => $id),array('cat_id' => $id),__LINE__,__FILE__);
}
return $id;
}
/**
* Checks if the current user has the necessary ACL rights
*
* If the access of a category is set to private, one needs a private grant for the application
*
* @param int $needed necessary ACL right: EGW_ACL_{READ|EDIT|DELETE}
* @param mixed $category category as array or the category_id
* @return boolean true permission granted, false for permission denied, null for category does not exist
*/
public function check_perms($needed,$category)
{
if (!is_array($category))
{
if (!isset($this->cache_id2cat_data[$category]))
{
if (($cat = $this->db->select($this->table,'*',array('cat_id' => $category),__LINE__,__FILE__)->fetch()))
{
$cat = egw_db::strip_array_keys($cat,'cat_');
$cat['app_name'] = $cat['appname'];
$this->cache_id2cat_data[$category] = $cat;
}
else return null;
}
$category = $this->cache_id2cat_data[$category];
}
// The user for the global cats has id -1, this one has full access to all global cats
if ($this->account_id == -1 && ($category['appname'] == 'phpgw'
|| $category['appname'] == $this->app_name && $category['owner'] == -1))
{
return true;
}
// Read access to global categories
if ($needed == EGW_ACL_READ && ($category['appname'] == 'phpgw'
|| $category['appname'] == $this->app_name && $category['owner'] == -1))
{
return true;
}
// Full access to own categories
if ($category['appname'] == $this->app_name && $category['owner'] == $this->account_id)
{
return true;
}
// Check for ACL granted access, the -1 user must not get access by ACL to keep old behaviour
return ($this->account_id != -1 && $category['appname'] == $this->app_name && ($this->grants[$category['owner']] & $needed) &&
($category['access'] == 'public' || ($this->grants[$category['owner']] & EGW_ACL_PRIVATE)));
}
/**
* delete a category
*
* @param int $cat_id category id
* @param boolean $drop_subs=false if true delete sub-cats too
* @param boolean $modify_subs=false if true make the subs owned by the parent of $cat_id
*/
function delete($cat_id, $drop_subs = False, $modify_subs = False)
{
if ($modify_subs)
{
$new_parent = $this->id2name($cat_id,'parent');
$new_main = 0;
foreach ((array) $this->return_sorted_array('',False,'','','',False, $cat_id) as $cat)
{
if ($cat['level'] == 1)
{
$this->db->update($this->table,array(
'cat_level' => 0,
'cat_parent' => 0,
'cat_main' => $cat['id'],
),array(
'cat_id' => $cat['id'],
'cat_appname' => $this->app_name,
),__LINE__,__FILE__);
$new_main = $cat['id'];
}
else
{
$update = array('cat_level' => $cat['level']-1);
if ($new_main) $update['cat_main'] = $new_main;
if ($cat['parent'] == $cat_id) $update['cat_parent'] = $new_parent;
$this->db->update($this->table,$update,array(
'cat_id' => $cat['id'],
'cat_appname' => $this->app_name,
),__LINE__,__FILE__);
}
}
}
if ($drop_subs)
{
$where = array('cat_id='.(int)$cat_id.' OR cat_parent='.(int)$cat_id.' OR cat_main='.(int)$cat_id);
}
else
{
$where['cat_id'] = $cat_id;
}
$where['cat_appname'] = $this->app_name;
$this->db->delete($this->table,$where,__LINE__,__FILE__);
}
/**
* edit / update a category
*
* @param array $values array with cat-data (it need to be complete, as everything get's written)
* @return int cat-id
*/
function edit($values)
{
if (isset($values['old_parent']) && (int)$values['old_parent'] != (int)$values['parent'])
{
$this->delete($values['id'],False,True);
return $this->add($values);
}
else
{
if ($values['parent'] > 0)
{
$values['main'] = $this->id2name($values['parent'],'main');
$values['level'] = $this->id2name($values['parent'],'level') + 1;
}
else
{
$values['main'] = $values['id'];
$values['level'] = 0;
}
}
$this->db->update($this->table,array(
'cat_name' => $values['name'],
'cat_description' => $values['descr'],
'cat_data' => $values['data'],
'cat_parent' => $values['parent'],
'cat_access' => $values['access'],
'cat_main' => $values['main'],
'cat_level' => $values['level'],
'last_mod' => time(),
),array(
'cat_id' => $values['id'],
'cat_appname' => $this->app_name,
),__LINE__,__FILE__);
return (int)$values['id'];
}
/**
* return category id for a given name
*
* Cat's with the given name are returned in this order:
* - personal cats first
* - then application global categories
* - global categories
* - cat's of other user
*
* @param string $cat_name cat-name
* @param boolean $strip=false if true, strips 'X-' from category names added by some SyncML clients
* @return int cat-id or 0 if not found
*/
function name2id($cat_name,$strip=false)
{
static $cache = array(); // a litle bit of caching
if (isset($cache[$cat_name])) return $cache[$cat_name];
if ($strip === true)
{
$strip = 'X-';
}
$cats = array($cat_name);
if (isset($strip) && strncmp($strip, $cat_name, strlen($strip)) == 0)
{
$stripped_cat_name = substr($cat_name, strlen($strip));
if (isset($cache[$stripped_cat_name]))
{
$cache[$cat_name] = $cache[$stripped_cat_name];
return $cache[$stripped_cat_name];
}
$cats[] = $stripped_cat_name;
}
$cat = $this->db->select($this->table,array('cat_name','cat_id'),array(
'cat_name' => $cats,
'cat_appname' => array($this->app_name, 'phpgw'),
),__LINE__,__FILE__,0,
'ORDER BY cat_name<>'.$this->db->quote($cat_name).',(CASE cat_owner WHEN '.(int)$this->account_id." THEN 1 WHEN -1 THEN 2 ELSE 3 END),cat_appname='phpgw'",
false,1)->fetch();
if (!$cat) return 0; // cat not found, dont cache it, as it might be created in this request
return $cache[$cat['cat_name']] = (int) $cat['cat_id'];
}
/**
* return category information for a given id
*
* We use a shared cache together with return_single
*
* @param int $cat_id=0 cat-id
* @param string $item='name requested information, 'path' = / delimited path of category names (incl. parents)
* @return string information or '--' if not found or !$cat_id
*/
function id2name($cat_id=0, $item='name')
{
if(!$cat_id) return '--';
if (!isset($this->cache_id2cat_data[$cat_id])) $this->return_single($cat_id);
if (!$item) $item = 'parent';
$cat = $this->cache_id2cat_data[$cat_id];
if ($item == 'path')
{
if ($cat['parent'])
{
return $this->id2name($cat['parent'],'path').' / '.$cat['name'];
}
$item = 'name';
}
if ($cat[$item])
{
return $cat[$item];
}
elseif ($item == 'name')
{
return '--';
}
return null;
}
/**
* return category name for a given id
*
* @deprecated This is only a temp wrapper, use id2name() to keep things matching across the board. (jengo)
* @param int $cat_id
* @return string cat_name category name
*/
function return_name($cat_id)
{
return $this->id2name($cat_id);
}
/**
* check if a category id and/or name exists, if id AND name are given the check is for a category with same name and different id (!)
*
* @param string $type subs or mains
* @param string $cat_name='' category name
* @param int $cat_id=0 category id
* @param int $parent=0 category id of parent
* @param boolean $private=false limit to private categories
* @return int/boolean cat_id or false if cat not exists
*/
function exists($type,$cat_name = '',$cat_id = 0,$parent = 0, $private = false)
{
static $cache = array(); // a litle bit of caching
if (isset($cache[$type][$cat_name][$cat_id][$private])) return $cache[$type][$cat_name][$cat_id][$private];
$where = array($this->filter($type));
if ($cat_name)
{
$where['cat_name'] = $cat_name;
if ($cat_id) $where[] = 'cat_id != '.(int)$cat_id;
}
elseif ($cat_id)
{
$where['cat_id'] = $cat_id;
}
if ($parent){
$where['cat_parent'] = $parent;
}
$grant_cats = "(";
if ($private) {
$grant_cats .= "cat_owner='" . $this->account_id . "' AND cat_access='private'";
} else {
$grant_cats .= "cat_owner='" . $this->account_id
. "' OR cat_owner='-1' OR cat_access='public'";
if (is_array($this->grants)) {
$grant_cats .= " AND cat_owner IN (" . implode(',',array_keys($this->grants)) . ")";
}
}
$where[] = $grant_cats . ")";
return $cache[$type][$cat_name][$cat_id][$private] = $this->db->select($this->table,'cat_id',$where,__LINE__,__FILE__)->fetchSingle();
}
/**
* Change the owner of all cats owned by $owner to $to OR deletes them if !$to
*
* @param int $owner owner or the cats to delete or change
* @param int $to=0 new owner or 0 to delete the cats
* @param string $app='' if given only cats matching $app are modifed/deleted
*/
function change_owner($owner,$to=0,$app='')
{
$where = array('cat_owner' => $owner);
if ($app) $where['cat_appname'] = $app;
if ((int)$to)
{
$this->db->update($this->table,array('cat_owner' => $to),$where,__LINE__,__FILE__);
}
else
{
$this->db->delete($this->table,$where,__LINE__,__FILE__);
}
}
}