egroupware/phpgwapi/inc/class.categories.inc.php

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<?php
/**************************************************************************\
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* eGroupWare API - Categories *
* This file written by Joseph Engo <jengo@phpgroupware.org> *
* and Bettina Gille [ceb@phpgroupware.org] *
* Category manager *
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* Copyright (C) 2000, 2001 Joseph Engo, Bettina Gille *
* Copyright (C) 2002, 2003 Bettina Gille *
* Reworked 11/2005 by RalfBecker-AT-outdoor-training.de *
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* ------------------------------------------------------------------------ *
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* This library is part of the eGroupWare API *
* http://www.egroupware.org *
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* See the GNU Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
/**
* class to manage categories in eGroupWare
*
* @license LGPL
* @package api
* @subpackage categories
*/
class categories
{
var $account_id;
var $app_name;
var $db;
var $total_records;
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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;
$this->db = clone($GLOBALS['egw']->db);
$this->db->set_app('phpgwapi');
$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;
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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': $where = 'cat_parent = 0'; break;
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default: return False;
}
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$this->db->select($this->table,'COUNT(*)',$where,__LINE__,__FILE__);
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return $this->db->next_record() ? $this->db->f(0) : 0;
}
/**
* 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, $column = '')
{
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if ($globals)
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{
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$global_cats = " OR cat_appname='phpgw'";
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}
if (($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;
}
else
{
$ordermethod = 'ORDER BY cat_main, cat_level, cat_name ASC';
}
if ($this->account_id == '-1')
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{
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$grant_cats = ' cat_owner=-1 ';
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}
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else
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{
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if (is_array($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)) . ')) ';
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}
else
{
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$grant_cats = ' cat_owner=' . $this->account_id . ' OR cat_owner=-1 ';
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}
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}
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if ($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 $query) ";
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}
if($lastmod > 0)
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{
$querymethod .= ' AND last_mod > ' . (int)$lastmod;
}
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$where = '(cat_appname=' . $this->db->quote($this->app_name) . ' AND ' . $grant_cats . $global_cats . ')'
. $parent_filter . $querymethod . $filter;
$this->db->select($this->table,'COUNT(*)',$where,__LINE__,__FILE__);
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$this->total_records = $this->db->next_record() ? $this->db->f(0) : 0;
if (!$this->total_records) return false;
$this->db->select($this->table,'*',$where,__LINE__,__FILE__,$limit ? (int) $start : false,$ordermethod);
while (($cat = $this->db->row(true,'cat_')))
{
$cat['app_name'] = $cat['appname'];
$this->cache_id2cat_data[$cat['id']] = $cat;
if ($column)
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{
$cats[] = array($column => isset($cat[$column]) ? $cat[$column] : $cat['id']);
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}
else
{
$cats[] = $cat;
}
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}
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, $parent_id=0)
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{
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if ($globals)
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{
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$global_cats = " OR cat_appname='phpgw'";
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}
if (!$sort) $sort = 'ASC';
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if (!empty($order) && preg_match('/^[a-zA-Z_, ]+$/',$order) && (empty($sort) || preg_match('/^(ASC|DESC|asc|desc)$/',$sort)))
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{
$ordermethod = 'ORDER BY '.$order.' '.$sort;
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}
else
{
$ordermethod = ' ORDER BY cat_name ASC';
}
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if ($this->account_id == '-1')
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{
$grant_cats = " cat_owner='-1' ";
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}
else
{
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if (is_array($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)) . ")) ";
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}
else
{
$grant_cats = " cat_owner='" . $this->account_id . "' OR cat_owner='-1' ";
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}
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}
$parent_select = ' AND cat_parent=' . (int)$parent_id;
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if ($query)
{
$query = $this->db->quote('%'.$query.'%');
$querymethod = " AND (cat_name LIKE $query OR cat_description LIKE $query) ";
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}
$where = '(cat_appname=' . $this->db->quote($this->app_name) . ' AND ' . $grant_cats . $global_cats . ')' . $querymethod;
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$parents = $cats = array();
$this->db->select($this->table,'*',$where . $parent_select,__LINE__,__FILE__,false,$ordermethod);
while (($cat = $this->db->row(true,'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();
$this->db->select($this->table,'*',$where . $sub_select,__LINE__,__FILE__,false, $ordermethod);
while (($cat = $this->db->row(true,'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;
}
}
}
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}
}
$this->total_records = count($cats);
if ($limit)
{
return array_slice($cats,(int)$start,$GLOBALS['egw_info']['user']['preferences']['common']['maxmatchs']);
}
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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]))
{
$this->db->select($this->table,'*',array('cat_id' => $id),__LINE__,__FILE__);
if(($cat = $this->db->row(true,'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);
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}
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if ($type != 'all')
{
$cats = $this->return_array($type,0,False,'','','',$globals);
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}
else
{
$cats = $this->return_sorted_array(0,False,'','','',$globals);
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}
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if (!$cats) return '';
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if($self)
{
foreach($cats as $key => $cat)
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{
if ($cat['id'] == $self)
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{
unset($cats[$key]);
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}
}
}
switch ($format)
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{
case 'select':
foreach($cats as $cat)
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{
$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;';
}
$s .= '</option>' . "\n";
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}
break;
case 'list':
$space = '&nbsp;&nbsp;';
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$s = '<table border="0" cellpadding="2" cellspacing="2">' . "\n";
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foreach($cats as $cat)
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{
$image_set = '&nbsp;';
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if (in_array($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'])
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. '</a></td>' . "\n"
. '</tr>' . "\n";
}
$s .= '</table>' . "\n";
break;
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}
return $s;
}
/**
* @deprecated use formatted_list
*/
function formated_list($format,$type='',$selected = '',$globals = False,$site_link = 'site')
{
return $this->formatted_list($format,$type,$selected,$globals,$site_link);
}
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/**
* add a category
*
* @param array $value cat-data
* @return int new cat-id
*/
function add($values)
{
if ((int)$values['parent'] > 0)
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{
$values['level'] = $this->id2name($values['parent'],'level')+1;
$values['main'] = $this->id2name($values['parent'],'main');
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}
$this->db->insert($this->table,array(
'cat_parent' => $values['parent'],
'cat_owner' => $this->account_id,
'cat_access' => $values['access'],
'cat_appname' => $this->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' => $values['id']) : array(),__LINE__,__FILE__);
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$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;
}
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/**
* 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');
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);
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}
else
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{
if ($values['parent'] > 0)
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{
$values['main'] = $this->id2name($values['parent'],'main');
$values['level'] = $this->id2name($values['parent'],'level') + 1;
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}
else
{
$values['main'] = $values['id'];
$values['level'] = 0;
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}
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}
$this->db->update($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, only application cat, which are global or owned by the user are returned!
*
* @param string $cat_name cat-name
* @return int cat-id or 0 if not found
*/
function name2id($cat_name)
{
static $cache = array(); // a litle bit of caching
if (isset($cache[$cat_name])) return $cache[$cat_name];
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$this->db->select($this->table,'cat_id',array(
'cat_name' => $cat_name,
'cat_appname' => $this->app_name,
'(cat_owner = '.(int)$this->account_id.' OR cat_owner = -1)',
),__LINE__,__FILE__);
return $cache[$cat_name] = $this->db->next_record() ? $this->db->f('cat_id') : 0;
}
/**
* 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 $item='name requested information
* @return string information or '--' if not found or !$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) $item = 'parent';
if ($this->cache_id2cat_data[$cat_id][$item])
{
return $this->cache_id2cat_data[$cat_id][$item];
}
elseif ($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 $parent=0 category id of parent
* @return int/boolean cat_id or false if cat not exists
*/
function exists($type,$cat_name = '',$cat_id = 0,$parent = 0)
{
static $cache = array(); // a litle bit of caching
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if (isset($cache[$type][$cat_name][$cat_id])) return $cache[$type][$cat_name][$cat_id];
$where = array($this->filter($type));
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if ($cat_name)
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{
$where['cat_name'] = $cat_name;
if ($cat_id) $where[] = 'cat_id != '.(int)$cat_id;
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}
elseif ($cat_id)
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{
$where['cat_id'] = $cat_id;
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}
if ($parent) $where['cat_parent'] = $cat_parent;
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$this->db->select($this->table,'cat_id',$where,__LINE__,__FILE__);
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return $cache[$type][$cat_name][$cat_id] = $this->db->next_record() && $this->db->f(0);
}
/**
* 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'] = $app;
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if ((int)$to)
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{
$this->db->update($this->table,array('cat_owner' => $to),$where,__LINE__,__FILE__);
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}
else
{
$this->db->delete($this->table,$where,__LINE__,__FILE__);
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}
}
}