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egroupware_official/etemplate/inc/class.boetemplate.inc.php

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<?php
/**************************************************************************\
* eGroupWare - EditableTemplates - Business Objects *
* http://www.eGroupWare.org *
* Written by Ralf Becker <RalfBecker@outdoor-training.de> *
* -------------------------------------------- *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
include_once(EGW_INCLUDE_ROOT . '/etemplate/inc/class.soetemplate.inc.php');
/**
* Business Object for eTemplates, extending the Storage Object
*
* Not so much so far, as the most logic is still in the UI-class
*
* @package etemplate
* @subpackage api
* @author RalfBecker-AT-outdoor-training.de
* @license GPL
*/
class boetemplate extends soetemplate
{
var $extensions = array();
var $types = array(
'label' => 'Label', // Label $cell['label'] is (to be translated) textual content
'text' => 'Text', // Textfield 1 Line (size = [length][,maxlength])
'int' => 'Integer', // like text, but only numbers (size = [min][,max])
'float' => 'Floating Point', // --------------- " --------------------------
'textarea'=> 'Textarea', // Multiline Text Input (size = [rows][,cols])
'htmlarea' => 'Formatted Text (HTML)',
'checkbox'=> 'Checkbox',
'radio' => 'Radiobutton', // Radiobutton (size = value if checked)
'button'=> 'Submitbutton',
'hrule' => 'Horizontal Rule',
'template' => 'Template', // $cell['name'] contains template-name, $cell['size'] index into $content,$cname,$readonlys
'image' => 'Image', // label = url, name=link or method, help=alt or title
'date' => '', // Datefield, size='' timestamp or size=format like 'm/d/Y'
'select'=> 'Selectbox', // Selectbox ($sel_options[$name] or $content[options-$name] is array with options)
// if size > 1 then multiple selections, size lines showed
'html' => 'Html', // Raw html in $content[$cell['name']]
'file' => 'FileUpload', // show an input type='file', set the local name as ${name}_path
'vbox' => 'VBox', // a (vertical) box to contain widgets in rows, size = # of rows
'hbox' => 'HBox', // a (horizontal) box to contain widgets in cols, size = # of cols
'groupbox' => 'GroupBox', // a box with a label containing other elements to group them (html: fieldset)
'box' => 'Box', // just a container for widgets (html: div)
'grid' => 'Grid', // tabular widget containing rows with columns of widgets
'deck' => 'Deck' // a container of elements where only one is visible, size = # of elem.
);
var $garbage_collection_done;
/**
* constructor of class
*
* Calls the constructor of soetemplate
*
* @param string/array $name name of etemplate or array with name and other keys
* @param string/array $load_via name or array with keys of other etemplate to load in order to get $name
*/
function boetemplate($name='',$load_via='')
{
$this->soetemplate();
$tname = &$name;
if (is_array($name))
{
$tname = &$name['name'];
}
$tname = (strstr($tname,'.') === False && !empty($tname) ?
(is_array($load_via) ? $load_via['name'] : $load_via).'.':'').$tname;
if (empty($tname) || !$this->read($name,'','',0,'',$load_via))
{
$this->init($name);
}
$this->garbage_collection_done =& $GLOBALS['egw_info']['etemplate']['garbage_collection_done'];
}
/**
* checks if a grid row or column is disabled
*
* Expression: [!][@]val[=[@]check]
* Parts in square brackets are optional, a ! negates the expression, @val evaluates to $content['val']
* if no =check is given all set non-empty and non-zero strings are true (standard php behavior)
*
* @param string $disabled expression to check, eg. "!@var" for !$content['var']
* @param array $content the content-array in the context of the grid
* @return boolean true if the row/col is disabled or false if not
*/
function check_disabled($disabled,$content)
{
if ($this->onclick_handler && !$this->no_onclick)
{
return false; // we have an onclick handler
}
//return False;
if ($not = $disabled[0] == '!')
{
$disabled = substr($disabled,1);
}
list($val,$check_val) = $vals = explode('=',$disabled);
if ($val[0] == '@')
{
$val = $this->get_array($content,substr($val,1));
}
if ($check_val[0] == '@')
{
$check_val = $this->get_array($content,substr($check_val,1));
}
$result = count($vals) == 1 ? $val != '' : $val == $check_val;
if ($not) $result = !$result;
//echo "<p>check_disabled: '".($not?'!':'')."$disabled' = '$val' ".(count($vals) == 1 ? '' : ($not?'!':'=')."= '$check_val'")." = ".($result?'True':'False')."</p>\n";
return $result;
}
/**
* allows a few variables (eg. row-number) to be used in field-names
*
* This is mainly used for autorepeat, but other use is possible.
* You need to be aware of the rules PHP uses to expand vars in strings, a name
* of "Row$row[length]" will expand to 'Row' as $row is scalar, you need to use
* "Row${row}[length]" instead. Only one indirection is allowd in a string by php !!!
* Out of that reason we have now the variable $row_cont, which is $cont[$row] too.
* Attention !!!
* Using only number as index in field-names causes a lot trouble, as depending
* on the variable type (which php determines itself) you used filling and later
* accessing the array it can by the index or the key of an array element.
* To make it short and clear, use "Row$row" or "$col$row" not "$row" or "$row$col" !!!
*
* @param sring $name the name to expand
* @param int $c is the column index starting with 0 (if you have row-headers, data-cells start at 1)
* @param int $row is the row number starting with 0 (if you have col-headers, data-cells start at 1)
* @param int $c_ is the value of the previous template-inclusion,
* eg. the column-headers in the eTemplate-editor are templates itself,
* to show the column-name in the header you can not use $col as it will
* be constant as it is always the same col in the header-template,
* what you want is the value of the previous template-inclusion.
* @param int $row_ is the value of the previous template-inclusion,
* @param array $cont content of the template, you might use it to generate button-names with id values in it:
* "del[$cont[id]]" expands to "del[123]" if $cont = array('id' => 123)
* @return string the expanded name
*/
function expand_name($name,$c,$row,$c_='',$row_='',$cont='')
{
$is_index_in_content = $name[0] == '@';
if (strstr($name,'$') !== False)
{
if (!$cont)
{
$cont = array();
}
$col = $this->num2chrs($c-1); // $c-1 to get: 0:'@', 1:'A', ...
$col_ = $this->num2chrs($c_-1);
$row_cont = $cont[$row];
$col_row_cont = $cont[$col.$row];
eval('$name = "'.$name.'";');
}
if ($is_index_in_content)
{
$name = $this->get_array($cont,substr($name,1));
}
return $name;
}
/**
* Checks if we have an row- or column autorepeat and sets the indexes for $content, etc.
*
* Autorepeat is important to allow a variable numer of rows or cols, eg. for a list.
* The eTemplate has only one (have to be the last) row or column, which gets
* automaticaly repeated as long as content is availible. To check this the content
* has to be in an sub-array of content. The index / subscript into content is
* determined by the content of size for templates or name for regular fields.
* An autorepeat is defined by an index which contains variables to expand.
* (vor variable expansion in names see expand_names). Usually I use the keys
* $row: 0, 1, 2, 3, ... for only rows, $col: '@', 'A', 'B', 'C', ... for only cols or
* $col$row: '@0','A0',... '@1','A1','B1',... '@2','A2','B2',... for both rows and cells.
* In general everything expand_names can generate is ok - see there.
* As you usually have col- and row-headers, data-cells start with '1' or 'A' !!!
*
* @param array $cell with data of cell: name, type, size, ...
* @param int $c,$r col/row index starting from 0
* @param string &$idx returns the index in $content and $readonlys (NOT $sel_options !!!)
* @param string &$idx_cname returns the basename for the form-name: is $idx if only one value
* (no ',') is given in size (name (not template-fields) are always only one value)
* @param boolean $check_col to check for col- or row-autorepeat
* @return boolean true if cell is autorepeat (has index with vars / '$') or false otherwise
*/
function autorepeat_idx($cell,$c,$r,&$idx,&$idx_cname,$check_col=False)
{
$org_idx = $idx = $cell[ $cell['type'] == 'template' ? 'size' : 'name' ];
$idx = $this->expand_name($idx,$c,$r);
if (!($komma = strpos($idx,',')))
{
$idx_cname = $idx;
}
else
{
$idx_cname = substr($idx,1+$komma);
$idx = substr($idx,0,$komma);
}
$Ok = False;
$pat = $org_idx;
while (!$Ok && ($pat = strstr($pat,'$')))
{
$pat = substr($pat,$pat[1] == '{' ? 2 : 1);
if ($check_col)
{
$Ok = $pat[0] == 'c' && !(substr($pat,0,4) == 'cont' ||
substr($pat,0,2) == 'c_' || substr($pat,0,4) == 'col_');
}
else
{
$Ok = $pat[0] == 'r' && !(substr($pat,0,2) == 'r_' ||
substr($pat,0,4) == 'row_' && substr($pat,0,8) != 'row_cont');
}
}
if ($this->name && $this->name == $this->debug)
{
echo "$this->name ".($check_col ? 'col' : 'row')."-check: c=$c, r=$r, idx='$org_idx'='$idx' idx_cname='$idx_cname' ==> ".($Ok?'True':'False')."<p>\n";
}
return $Ok;
}
/**
* creates a new appsession-id via microtime()
*/
function appsession_id()
{
list($msec,$sec) = explode(' ',microtime());
$time = 100 * $sec + (int)(100 * $msec); // gives precision of 1/100 sec
$id = $GLOBALS['egw_info']['flags']['currentapp'] .':'. $time;
//echo "<p>microtime()=".microtime().", sec=$sec, msec=$msec, id=$id</p>\n";
return $id;
}
/**
* saves content,readonlys,template-keys, ... via the appsession function
*
* As a user may open several windows with the same content/template wie generate a location-id from microtime
* which is used as location for appsession to descriminate between the different windows. This location-id
* is then saved as a hidden-var in the form. The above mentions session-id has nothing to do / is different
* from the session-id which is constant for all windows opened in one session.
*
* @param array $data the data to save
* @param string $id the id to use or '' to generate a new id
* @return string location-id
*/
function save_appsession($data,$id='')
{
if (!$id)
{
$id = $this->appsession_id();
}
$GLOBALS['egw']->session->appsession($id,'etemplate',$data);
if (substr($GLOBALS['egw_info']['server']['sessions_type'],0,4) == 'php4' && !$this->garbage_collection_done)
{
return $this->php4_session_garbage_collection();
}
return $id;
}
/**
* gets content,readonlys,template-keys, ... back from the appsession function
*
* @param string $id the location-id
* @return array with session-data
*/
function get_appsession($id)
{
$data = $GLOBALS['egw']->session->appsession($id,'etemplate');
//echo "boetemplate::get_appsession('$id')"; _debug_array($data);
if (substr($GLOBALS['egw_info']['server']['sessions_type'],0,4) == 'php4')
{
$this->php4_session_garbage_collection($id);
}
return $data;
}
/**
* a little bit of garbage collection for php4 sessions (their size is limited by memory_limit)
*
* With constant eTemplate use it can grow quite big and lead to unusable sessions (php terminates
* before any output with "Allowed memory size of ... exhausted").
* We delete now sessions once used after 10min and sessions never or multiple used after 60min.
*
* @param string $id_used id of session just read by get_appsession to increment the usage counter
*/
function php4_session_garbage_collection($id_used='')
{
if (!defined('EGW_SESSION_VAR')) return; // for 1.0.0 compatibility
// now we are on php4 sessions and do a bit of garbage collection
$app_sessions =& $_SESSION[EGW_SESSION_VAR]['app_sessions']['etemplate'];
$session_used =& $app_sessions['session_used'];
if ($id_used)
{
//echo "session_used[$id_used]='".$session_used[$id_used]."'<br/>\n";
++$session_used[$id_used]; // count the number of times a session got used
}
$this->garbage_collection_done = true;
if (count($app_sessions) < 20) return $data; // we dont need to care
list($msec,$sec) = explode(' ',microtime());
$now = 100 * $sec + (int)(100 * $msec); // gives precision of 1/100 sec
foreach(array_keys($app_sessions) as $id)
{
list($app,$time) = explode(':',$id);
if (!$time) continue; // other data, no session
//echo ++$n.') '.$id.': '.(($now-$time)/100.0)."secs old, used=".$session_used[$id].", size=".strlen($app_sessions[$id])."<br>\n";
if ($session_used[$id] == 1 && $time < $now - 10*6000 || // session used and older then 10min
$time < $now - 60*6000) // session not used and older then 1h
{
//echo "<p>boetemplate::php4_session_garbage_collection('$id_used'): unsetting session '$id' (now=$now)</p>\n";
unset($app_sessions[$id]);
unset($session_used[$id]);
}
}
}
/**
* gets an attribute in a named cell
*
* @static
* @param string $name cell-name
* @param string $attr attribute-name
* @return mixed the attribute or False if named cell not found
*/
function &get_cell_attribute($name,$attr)
{
return $this->set_cell_attribute($name,$attr,NULL);
}
/**
* set an attribute in a named cell if val is not NULL else return the attribute
*
* @static
* @param string $name cell-name
* @param string $attr attribute-name
* @param mixed $val if not NULL sets attribute else returns it
* @return mixed number of changed cells or False, if none changed
*/
function &set_cell_attribute($name,$attr,$val)
{
//echo "<p>set_cell_attribute(tpl->name=$this->name, name='$name', attr='$attr',val='$val')</p>\n";
$extra = array(false,$name,$attr,$val);
$result =& $this->widget_tree_walk('set_cell_attribute_helper',$extra);
if (is_null($val))
{
return $result;
}
return $extra[0];
}
/**
* disables all cells with name == $name
*
* @param sting $name cell-name
* @param boolean $disabled=true disable or enable a cell, default true=disable
* @return mixed number of changed cells or False, if none changed
*/
function disable_cells($name,$disabled=True)
{
return $this->set_cell_attribute($name,'disabled',$disabled);
}
/**
* set one or more attibutes for row $n
*
* @deprecated as it uses this->data
* @param int $n numerical row-number starting with 1 (!)
* @param string $height percent or pixel or '' for no height
* @param string $class name of css class (without the leading '.') or '' for no class
* @param string $valign alignment (top,middle,bottom) or '' for none
* @param boolean $disabled True or expression or False to disable or enable the row (Only the number 0 means dont change the attribute !!!)
*/
function set_row_attributes($n,$height=0,$class=0,$valign=0,$disabled=0)
{
list($old_height,$old_disabled) = explode(',',$this->data[0]["h$n"]);
$disabled = $disabled !== 0 ? $disabled : $old_disabled;
$this->data[0]["h$n"] = ($height !== 0 ? $height : $old_height).
($disabled ? ','.$disabled : '');
list($old_class,$old_valign) = explode(',',$this->data[0]["c$n"]);
$valign = $valign !== 0 ? $valign : $old_valign;
$this->data[0]["c$n"] = ($class !== 0 ? $class : $old_class).
($valign ? ','.$valign : '');
}
/**
* disables row $n
*
* @deprecated as it uses this->data
* @param int $n numerical row-number starting with 1 (!)
* @param boolean $enable=false can be used to re-enable a row if set to True
*/
function disable_row($n,$enable=False)
{
$this->set_row_attributes($n,0,0,0,!$enable);
}
/**
* set one or more attibutes for column $c
*
* @deprecated as it uses this->data
* @param int/string $c numerical column-number starting with 0 (!), or the char-code starting with 'A'
* @param string $width percent or pixel or '' for no height
* @param mixed $disabled=0 True or expression or False to disable or enable the column (Only the number 0 means dont change the attribute !!!)
*/
function set_column_attributes($c,$width=0,$disabled=0)
{
if (is_numeric($c))
{
$c = $this->num2chrs($c);
}
list($old_width,$old_disabled) = explode(',',$this->data[0][$c]);
$disabled = $disabled !== 0 ? $disabled : $old_disabled;
$this->data[0][$c] = ($width !== 0 ? $width : $old_width).
($disabled ? ','.$disabled : '');
}
/**
* disables column $c
*
* @deprecated as it uses this->data
* @param int/string $c numerical column-number starting with 0 (!), or the char-code starting with 'A'
* @param boolean $enable can be used to re-enable a column if set to True
*/
function disable_column($c,$enable=False)
{
$this->set_column_attributes($c,0,!$enable);
}
/**
* trys to load the Extension / Widget-class from the app or etemplate
*
* @param string $name name of the extension, the classname should be class.${name}_widget.inc.php
* the $name might be "$name.$app" to give a app-name (default is the current app,or template-name)
* @return string/boolean human readable name or false if not found/loadable
*/
function loadExtension($type)
{
list($class,$app) = explode('.',$type);
$class .= '_widget';
if (!$app) $app = $GLOBALS['egw_info']['flags']['current_app'];
if (!file_exists(EGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
list($app) = explode('_',$type);
}
if (!file_exists(EGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
list($app) = explode('.',$this->name);
}
if (!file_exists(EGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
$app = 'etemplate';
}
if (!file_exists(EGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
//echo "<p>boetemplate::loadExtension($type) extension not found</p>\n";
return $GLOBALS['egw_info']['etemplate']['extension'][$type] = False;
}
$GLOBALS['egw_info']['etemplate']['extension'][$type] =& CreateObject($app.'.'.$class,$ui='html');
//echo "<p>boetemplate::loadExtension($type) extension found in App. $app</p>\n";
return $GLOBALS['egw_info']['etemplate']['extension'][$type]->human_name;
}
/**
* checks if extension is loaded (load it if it isnt) and optional checks if it has a given method
*
* @param string $name name of the extension, the classname should be class.${name}_widget.inc.php
* the $name might be "$name.$app" to give a app-name (default is the current app,or template-name)
* @param string $function 'pre_process', 'post_process' or 'render'
* @return boolean true if the extension (incl. method) exists, else false
*/
function haveExtension($type,$function='')
{
return ($GLOBALS['egw_info']['etemplate']['extension'][$type] || $this->loadExtension($type,$ui)) &&
($function == '' || $GLOBALS['egw_info']['etemplate']['extension'][$type]->public_functions[$function]);
}
/**
* executes the pre_process-function of the extension $cell[type]
*
* @param string $type type of the extension
* @param string $name form-name of this widget/field (used as a unique index into extension_data)
* @param mixed &$value value of the extensions content(-array)
* @param array &$cell table-cell on which the extension operates
* @param array &$readonlys value of the extensions readonly-setting(-array)
* @return mixed the return-value of the extensions preprocess function
*/
function extensionPreProcess($type,$name,&$value,&$cell,&$readonlys)
{
if (!$this->haveExtension($type))
{
return False;
}
return $GLOBALS['egw_info']['etemplate']['extension'][$type]->pre_process($name,$value,$cell,$readonlys,
$GLOBALS['egw_info']['etemplate']['extension_data'][$name],$this);
}
/**
* executes the post_process-function of the extension $cell[type]
*
* @param string $type name of the extension
* @param string $name form-name of this widget/field (used as a unique index into extension_data)
* @param mixed &$value returns the value of the extensions content(-array)
* @param mixed $value_in unprocessed value, eg. as posted by the browser
* @return boolean True if a value should be returned (default for no postprocess fkt.), else False
*/
function extensionPostProcess($type,$name,&$value,$value_in)
{
if (!$this->haveExtension($type,'post_process'))
{
return True;
}
return $GLOBALS['egw_info']['etemplate']['extension'][$type]->post_process($name,$value,
$GLOBALS['egw_info']['etemplate']['extension_data'][$name],
$GLOBALS['egw_info']['etemplate']['loop'],$this,$value_in);
}
/**
* executes the render-function of the extension $cell[type]
*
* @param string $type name of the extension
* @param string $name form-name of this widget/field (used as a unique index into extension_data)
* @param mixed &$value value of the extensions content(-array)
* @param array &$cell table-cell on which the extension operates
* @param array &$readonlys value of the extensions readonly-setting(-array)
* @return mixed return-value of the render function
*/
function extensionRender($type,$name,&$value,&$cell,$readonly)
{
if (!$this->haveExtension($type,'render'))
{
return False;
}
return $GLOBALS['egw_info']['etemplate']['extension'][$type]->render($cell,$name,$value,$readonly,
$GLOBALS['egw_info']['etemplate']['extension_data'][$name],$this);
}
/**
* checks if $idx is set in array $arr
*
* for one level of subindes identical to isset($arr[$idx])
*
* @static
* @param array $arr array to check
* @param string $idx may contain multiple subindex (eg.'x[y][z]')
* @return boolean true if set, else false
*/
function isset_array($arr,$idx)
{
$idxs = explode('[',str_replace(']','',$idx));
$last_idx = array_pop($idxs);
$pos = &$arr;
foreach($idxs as $idx)
{
if (!is_array($pos))
{
return False;
}
$pos = &$pos[$idx];
}
return isset($pos[$last_idx]);
}
/**
* sets $arr[$idx] = $val
*
* This works for non-trival indexes like 'a[b][c]' too: $arr['a']['b']['c'] = $val;
*
* @static
* @param array &$arr the array to search
* @param string $idx the index, may contain sub-indices like a[b], see example below
* @param mixed $val value to set
*/
function set_array(&$arr,$idx,$val)
{
if (!is_array($arr))
{
die('set_array() $arr is no array<br>'.function_backtrace());
}
$idxs = explode('[',str_replace(']','',$idx));
$pos = &$arr;
foreach($idxs as $idx)
{
$pos = &$pos[$idx];
}
$pos = $val;
}
/**
* return a reference to $arr[$idx]
*
* This works for non-trival indexes like 'a[b][c]' too: it returns &$arr[a][b][c]
* $sub = get_array($arr,'a[b]'); $sub = 'c'; is equivalent to $arr['a']['b'] = 'c';
*
* @static
* @param array $arr the array to search, referenz as a referenz gets returned
* @param string $idx the index, may contain sub-indices like a[b], see example below
* @param boolean $reference_into default False, if True none-existing sub-arrays/-indices get created to be returned as referenz, else False is returned
* @return mixed reference to $arr[$idx] or false if $idx is not set and not $reference_into
*/
function &get_array(&$arr,$idx,$reference_into=False)
{
if (!is_array($arr))
{
die('set_array() $arr is no array<br>'.function_backtrace());
}
if (is_object($idx)) return false; // given an error in php5.2
$idxs = explode('[',str_replace(']','',$idx));
$pos = &$arr;
foreach($idxs as $idx)
{
if (!is_array($pos) && !$referenz_info)
{
return False;
}
$pos = &$pos[$idx];
}
return $pos;
}
/**
* unsets $arr[$idx]
*
* This works for non-trival indexes like 'a[b][c]' too
* unset_array($arr,'a[b]'); is equivalent to unset($arr['a']['b']);
*
* @static
* @param array $arr the array to search, referenz as a referenz gets returned
* @param string $idx the index, may contain sub-indices like a[b], see example below
*/
function unset_array(&$arr,$idx)
{
if (!is_array($arr))
{
die('set_array() $arr is no array<br>'.function_backtrace());
}
$idxs = explode('[',str_replace(']','',$idx));
$last_idx = array_pop($idxs);
$pos = &$arr;
foreach($idxs as $idx)
{
$pos = &$pos[$idx];
}
unset($pos[$last_idx]);
}
/**
* merges $old and $new, content of $new has precedence over $old
*
* THIS IS NOT THE SAME AS PHP4's functions:
* - array_merge, as it calls itself recursive for values which are arrays.
* - array_merge_recursive accumulates values with the same index and $new does NOT overwrite $old
*
* @static
* @param array $old
* @param array $new
* @return array the merged array
*/
function complete_array_merge($old,$new)
{
if (is_array($new))
{
if (!is_array($old)) $old = (array) $old;
foreach($new as $k => $v)
{
if (!is_array($v) || !isset($old[$k]))
{
$old[$k] = $v;
}
else
{
$old[$k] = $this->complete_array_merge($old[$k],$v);
}
}
}
return $old;
}
/**
* returns a reference to a widget in the widget's children tree spezified by a path
*
* The path get's generated by the widget_tree_walk() methode and consists of the keys of the children arrays.
* For the 3. Column in the 2. row of a grid which is the only widget in the children-tree it is eg.: "/0/2C"
*
* @param string $path path in the widget tree
* @param int $ancestor=0 0: widget itself, 1: parent, 2: grand-parent, ...
* @return array referenz to the widget spezified or null, if it's not found
*/
function &get_widget_by_path($path,$ancestor=0)
{
//echo "<p>boetemplate::get_widget_by_path('$path',$ancestor)</p>\n";
$path_parts = explode('/',$path);
while($ancestor-- > 0)
{
if (array_pop($path_parts) === '') return null;
}
$path = implode('/',$path_parts);
if ($path == '/' || $path === '') return $this->children;
return $this->widget_tree_walk('get_widget_by_path_helper',$path);
}
/**
* returns a reference to a widget in the widget's children tree spezified it's name
*
* It returns the first match!
*
* @param string $name name of the widget
* @return array referenz to the widget spezified or null, if it's not found
*/
function &get_widget_by_name($name)
{
return $this->widget_tree_walk('get_widget_by_name_helper',$name);
}
/**
* generated a file-name from an eTemplates, name, template(-set) and lang
*
* @param string/array $name name of template or array('name'=>$name,'template'=>$template,'lang'=>$lang)
* @param string $template template-set
* @param string $lang language to use
* @return string
*/
function cache_name($name='',$template='default',$lang='default')
{
if (empty($name))
{
$name = $this->name;
$template = $this->template;
$lang = $this->lang;
}
elseif (is_array($name))
{
$template = $name['template'];
$lang = $name['lang'];
$name = $name['name'];
}
if (empty($template))
{
$template = 'default';
}
$cname = $template . '/' . $name . (!empty($lang) && $lang != 'default' ? '.' . $lang : '');
//echo "cache_name('$name','$template','$lang') = '$cname'";
return $cname;
}
/**
* stores the etemplate in the cache in phpgw_info
*/
function store_in_cache()
{
//echo "<p>store_in_cache('$this->name','$this->template','$this->lang','$this->version')</p>\n";
$GLOBALS['egw_info']['etemplate']['cache'][$this->cache_name()] = $this->as_array(1);
}
/**
* deletes the etemplate in the cache in phpgw_info
*/
function delete_in_cache()
{
//echo "<p>delete_in_cache('$this->name','$this->template','$this->lang','$this->version')</p>\n";
unset($GLOBALS['egw_info']['etemplate']['cache'][$this->cache_name()]);
}
/*
* returns true if a given eTemplate is in the cache
*
* @param string/array $name name of template or array('name'=>$name,'template'=>$template,'lang'=>$lang)
* @param string $template template-set
* @param string $lang language to use
* @param int $group to use the template for
* @param string $version of the template
* @return boolean
*/
function in_cache($name,$template='default',$lang='default',$group=0,$version='')
{
$cname = $this->cache_name($name,$template,$lang);
if (is_array($name))
{
$version = $name['version'];
$name = $name['name'];
}
if (!isset($GLOBALS['egw_info']['etemplate']['cache'][$cname]) ||
!empty($version) && $GLOBALS['egw_info']['etemplate']['cache'][$cname]['version'] != $version)
{
//echo " NOT found in cache</p>\n";
return False;
}
//echo " found in cache</p>\n";
return $cname;
}
/*
* reads the content of an eTemplate from the cache into the current object
*
* same as read but only via the cache
*
* @param string/array $name name of template or array('name'=>$name,'template'=>$template,'lang'=>$lang)
* @param string $template template-set
* @param string $lang language to use
* @param int $group to use the template for
* @param string $version of the template
* @return boolean true if the eTemplate was found in the cache
*/
function read_from_cache($name,$template='default',$lang='default',$group=0,$version='')
{
//if (is_array($name)) $version = $name['version']; echo "<p>read_from_cache(,,,version='$version'): ";
if ($cname = $this->in_cache($name,$template,$lang,$group))
{
$this->init($GLOBALS['egw_info']['etemplate']['cache'][$cname]);
return True;
}
return False;
}
/**
* reads an eTemplate from the cache or database / filesystem (and updates the cache)
*
* reimplementation of soetemplate::read to use and/or update the cache
*
* @param string $name name of the eTemplate or array with the values for all keys
* @param string $template template-set, '' loads the prefered template of the user, 'default' loads the default one '' in the db
* @param string $lang language, '' loads the pref. lang of the user, 'default' loads the default one '' in the db
* @param int $group id of the (primary) group of the user or 0 for none, not used at the moment !!!
* @param string $version version of the eTemplate
* @param mixed $load_via name/array of keys of etemplate to load in order to get $name (only as second try!)
* @return boolean True if a fitting template is found, else False
*/
function read($name,$template='default',$lang='default',$group=0,$version='',$load_via='')
{
if (is_array($name)) {
$pname = &$name['name'];
}
else
{
$pname = &$name;
}
if (empty($pname))
{
return False;
}
$parent = is_array($load_via) ? $load_via['name'] : $load_via;
if (strstr($pname,'.') === False && !empty($parent))
{
$pname = $parent . '.' . $pname;
}
if (!$this->read_from_cache($name,$template,$lang,$group,$version))
{
if (!soetemplate::read($name,$template,$lang,$group,$version))
{
if ($load_via && (is_string($load_via) ||
!isset($load_via['tpls_in_file']) || $load_via['tpls_in_file'] > 1))
{
soetemplate::read($load_via);
return $this->read_from_cache($name,$template,$lang,$group,$version);
}
return False;
}
$this->store_in_cache();
}
return True;
}
/**
* saves eTemplate-object to db and update the cache
*
* reimplementation of soetemplate::save to update the cache
*
* @param string $name name of the eTemplate or array with the values for all keys
* @param string $template template-set or '' for the default one
* @param string $lang language or '' for the default one
* @param int $group id of the (primary) group of the user or 0 for none, not used at the moment !!!
* @param string $version version of the eTemplate
* @return the number of affected rows, 1 should be ok, 0 somethings wrong
*/
function save($name='',$template='.',$lang='.',$group=0,$version='.')
{
if ($result = soetemplate::save($name,$template,$lang,$group,$version))
{
$this->store_in_cache();
}
return $result;
}
/**
* Deletes the eTemplate from the db, object itself is unchanged
*
* reimplementation of soetemplate::delete to update the cache
*
* @return int number of affected rows, 1 should be ok, 0 somethings wrong
*/
function delete()
{
$this->delete_in_cache();
return soetemplate::delete();
}
}
if (!function_exists('set_cell_attribute_helper'))
{
function &set_cell_attribute_helper(&$widget,&$extra)
{
// extra = array(0=>n,1=>name,2=>attr,3=>value)
if ($widget['name'] == $extra[1])
{
if (is_null($extra[3]))
{
$extra['__RETURN_NOW__'] = true; // wouldnt work otherwise, if attr is not yet set == null
return $widget[$extra[2]];
}
$widget[$extra[2]] = $extra[3];
++$extra[0];
}
}
function &get_widget_by_name_helper(&$widget,$extra)
{
if ($widget['name'] == $extra) return $widget;
}
function &get_widget_by_path_helper(&$widget,$extra,$path)
{
//echo "<p>path_searched='$extra', widget-path($widget[type]:$widget[name])='$path'</p>\n";
if ($path == $extra) return $widget;
}
}
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