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egroupware/etemplate/inc/class.boetemplate.inc.php

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<?php
/**************************************************************************\
* phpGroupWare - EditableTemplates - Buiseness Objects *
* http://www.phpgroupware.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(PHPGW_INCLUDE_ROOT . '/etemplate/inc/class.soetemplate.inc.php');
/*!
@class boetemplate
@author ralfbecker
@abstract Buiseness Objects for eTemplates
@discussion Not so much so far, as the most logic is still in the UI-class
@param $types,$alings converts internal names/values to (more) human readible ones
*/
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])
'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
);
/*!
@function boetemplate
@abstract constructor of class
@param $name name of etemplate or array with name and other keys
@param $load_via name/array with keys of other etemplate to load in order to get $name
@discussion Calls the constructor of soetemplate
*/
function boetemplate($name='',$load_via='')
{
$this->public_functions += array(
'disable_cells' => True,
'set_cell_attribute' => True,
'get_cell_attribute' => True,
'get_array' => True,
'set_array' => True,
'unset_array' => True
);
$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);
}
}
/*!
@function expand_name
@syntax expand_name( $name,$c,$row,$c_='',$row_='',$cont='' )
@author ralfbecker
@abstract allows a few variables (eg. row-number) to be used in field-names
@discussion This is mainly used for autorepeat, but other use is possible.
@discussion You need to be aware of the rules PHP uses to expand vars in strings, a name
@discussion of "Row$row[length]" will expand to 'Row' as $row is scalar, you need to use
@discussion "Row${row}[length]" instead. Only one indirection is allowd in a string by php !!!
@discussion Out of that reason we have now the variable $row_cont, which is $cont[$row] too.
@discussion Attention !!!
@discussion Using only number as index in field-names causes a lot trouble, as depending
@discussion on the variable type (which php determines itself) you used filling and later
@discussion accessing the array it can by the index or the key of an array element.
@discussion To make it short and clear, use "Row$row" or "$col$row" not "$row" or "$row$col" !!!
@param $name the name to expand
@param $c is the column index starting with 0 (if you have row-headers, data-cells start at 1)
@param $row is the row number starting with 0 (if you have col-headers, data-cells start at 1)
@param $c_, $row_ are the respective values of the previous template-inclusion,
@param eg. the column-headers in the eTemplate-editor are templates itself,
@param to show the column-name in the header you can not use $col as it will
@param be constant as it is always the same col in the header-template,
@param what you want is the value of the previous template-inclusion.
@param $cont content array of the template, you might use it to generate button-names with
@param id values in it: "del[$cont[id]]" expands to "del[123]" if $cont = array('id' => 123)
*/
function expand_name($name,$c,$row,$c_='',$row_='',$cont='')
{
if (strstr($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 = "'.$name.'";');
}
if ($name[0] == '@')
{
$name = $this->get_array($cont,substr($name,1));
}
return $name;
}
/*!
@function autorepeat_idx
@abstract Checks if we have an row- or column autorepeat and sets the indexes for $content, etc.
@discussion Autorepeat is important to allow a variable numer of rows or cols, eg. for a list.
@discussion The eTemplate has only one (have to be the last) row or column, which gets
@discussion automaticaly repeated as long as content is availible. To check this the content
@discussion has to be in an sub-array of content. The index / subscript into content is
@discussion determined by the content of size for templates or name for regular fields.
@discussion An autorepeat is defined by an index which contains variables to expand.
@discussion (vor variable expansion in names see expand_names). Usually I use the keys
@discussion $row: 0, 1, 2, 3, ... for only rows, $col: '@', 'A', 'B', 'C', ... for only cols or
@discussion $col$row: '@0','A0',... '@1','A1','B1',... '@2','A2','B2',... for both rows and cells.
@discussion In general everything expand_names can generate is ok - see there.
@discussion As you usually have col- and row-headers, data-cells start with '1' or 'A' !!!
@param $cell array with data of cell: name, type, size, ...
@param $c,$r col/row index starting from 0
@param &$idx returns the index in $content and $readonlys (NOT $sel_options !!!)
@param &$idx_cname returns the basename for the form-name: is $idx if only one value
@param (no ',') is given in size (name (not template-fields) are always only one value)
@param $check_col boolean to check for col- or row-autorepeat
@result true if cell is autorepeat (has index with vars / '$') 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' ==> ".($Ok?'True':'False')."<p>\n";
}
return $Ok;
}
function appsession_id()
{
list($msec,$sec) = explode(' ',microtime());
$id = $GLOBALS['phpgw_info']['flags']['currentapp'] . (intval(1000000 * $msec) + 1000000 * ($sec % 100000));
//echo "<p>microtime()=".microtime().", sec=$sec, msec=$msec, id=$id</p>\n";
return $id;
}
/*!
@function save_appsession
@syntax save_appsession( $data,$id='' )
@author ralfbecker
@abstract saves content,readonlys,template-keys, ... via the appsession function
@discussion As a user may open several windows with the same content/template wie generate a location-id from microtime
@discussion which is used as location for appsession to descriminate between the different windows. This location-id
@discussion is then saved as a hidden-var in the form. The above mentions session-id has nothing to do / is different
@discussion from the session-id which is constant for all windows opened in one session.
@param $data the data to save
@param $id the id to use or '' to generate a new id
@result the location-id
*/
function save_appsession($data,$id='')
{
if (!$id)
{
$id = $this->appsession_id;
}
$GLOBALS['phpgw']->session->appsession($id,'etemplate',$data);
return $id;
}
/*!
@function get_appsession
@syntax get_appsession( $id )
@author ralfbecker
@abstract gets content,readonlys,template-keys, ... back from the appsession function
@param $id the location-id
@result the session-data
*/
function get_appsession($id)
{
$data = $GLOBALS['phpgw']->session->appsession($id,'etemplate');
//echo "<p>get_appsession('$id') data="; _debug_array($data);
return $data;
}
/*!
@function get_cell_attribute
@syntax get_cell_attribute( $name,$attr )
@author ralfbecker
@abstract gets an attribute in a named cell
@result the attribute or False if named cell not found
*/
function get_cell_attribute($name,$attr)
{
reset($this->data);
while(list($row,$cols) = each($this->data))
{
while(list($col,$cell) = each($cols))
{
if ($cell['name'] == $name)
{
reset($this->data);
return $this->data[$row][$col][$attr];
}
}
}
reset($this->data);
return False;
}
/*!
@function set_cell_attribute
@syntax set_cell_attribute( $name,$attr,$val )
@author ralfbecker
@abstract set an attribute in a named cell
@result the number of changed cells
*/
function set_cell_attribute($name,$attr,$val)
{
//echo "<p>set_cell_attribute(tpl->name=$this->name, name='$name', attr='$attr',val='$val')</p>\n";
reset($this->data);
$n = 0;
while(list($row,$cols) = each($this->data))
{
while(list($col,$cell) = each($cols))
{
if ($cell['name'] == $name)
{
$this->data[$row][$col][$attr] = $val;
++$n;
}
if ($cell['type'] == 'template' && (is_object($cell['obj']) || $cell['name'][0] != '@'))
{
if (!is_object($cell['obj']))
{
$this->data[$row][$col]['obj'] = CreateObject('etemplate.etemplate',$cell['name']);
}
$n += $this->data[$row][$col]['obj']->set_cell_attribute($name,$attr,$val);
}
}
}
reset($this->data);
return $n;
}
/*!
@function disable_cells
@syntax disable_cells( $name )
@author ralfbecker
@abstract disables all cells with name == $name
*/
function disable_cells($name)
{
return $this->set_cell_attribute($name,'disabled',True);
}
/*!
@function loadExtension
@syntax loadExtension( $type )
@author ralfbecker
@abstact trys to load the Extension / Widget-class from the app or etemplate
@param $name name of the extension, the classname should be class.${name}_widget.inc.php
@discussion the $name might be "$name.$app" to give a app-name (default is the current app,or template-name)
*/
function loadExtension($type)
{
list($class,$app) = explode('.',$type);
$class .= '_widget';
if ($app == '')
{
$app = $GLOBALS['phpgw_info']['flags']['current_app'];
}
if (!file_exists(PHPGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
list($app) = explode('.',$this->name);
}
if (!file_exists(PHPGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
$app = 'etemplate';
}
if (!file_exists(PHPGW_SERVER_ROOT."/$app/inc/class.$class.inc.php"))
{
return $GLOBALS['phpgw_info']['etemplate']['extension'][$type] = False;
}
$GLOBALS['phpgw_info']['etemplate']['extension'][$type] = CreateObject($app.'.'.$class,$ui='html');
return $GLOBALS['phpgw_info']['etemplate']['extension'][$type]->human_name;
}
function haveExtension($type,$function='')
/*
@function haveExtension
@syntax haveExtension($type)
@abstract checks if extension is loaded and load it if it isnt
*/
{
return ($GLOBALS['phpgw_info']['etemplate']['extension'][$type] || $this->loadExtension($type,$ui)) &&
($function == '' || $GLOBALS['phpgw_info']['etemplate']['extension'][$type]->public_functions[$function]);
}
function extensionPreProcess($type,$name,&$value,&$cell,&$readonlys)
/*
@function extensionPreProcess
@syntax extensionPreProcess(&$cell,&$value,&$readonlys)
@param $type of the extension
@param $name form-name of this widget/field (used as a unique index into extension_data)
@param &$cell table-cell on which the extension operates
@param &$value value of the extensions content(-array)
@param &$readonlys value of the extensions readonly-setting(-array)
@abstract executes the pre_process-function of the extension $cell[]type]
*/
{
if (!$this->haveExtension($type))
{
return False;
}
return $GLOBALS['phpgw_info']['etemplate']['extension'][$type]->pre_process($name,$value,$cell,$readonlys,
$GLOBALS['phpgw_info']['etemplate']['extension_data'][$name],$this);
}
function extensionPostProcess($type,$name,&$value,$value_in)
/*
@function extensionPostProcess
@syntax extensionPostProcess(&$cell,&$value)
@param $type of the extension
@param $name form-name of this widget/field (used as a unique index into extension_data)
@param &$value value of the extensions content(-array)
@abstract executes the post_process-function of the extension $cell[type]
*/
{
if (!$this->haveExtension($type,'post_process'))
{
return False;
}
return $GLOBALS['phpgw_info']['etemplate']['extension'][$type]->post_process($name,$value,
$GLOBALS['phpgw_info']['etemplate']['extension_data'][$name],
$GLOBALS['phpgw_info']['etemplate']['loop'],$this,$value_in);
}
function extensionRender($type,$name,&$value,&$cell,$readonly)
/*
@function extensionRender
@syntax extensionRender(&$cell,$form_name,&$value,$readonly)
@abstract executes the render-function of the extension $cell[type]
*/
{
if (!$this->haveExtension($type,'render'))
{
return False;
}
return $GLOBALS['phpgw_info']['etemplate']['extension'][$type]->render($cell,$name,$value,$readonly,
$GLOBALS['phpgw_info']['etemplate']['extension_data'][$name],$this);
}
/*!
@function isset_array
@syntax isset_array( $arr,$idx )
@author ralfbecker
@abstract checks if idx, which may contain ONE subindex is set in array
*/
function isset_array($arr,$idx)
{
if (ereg('^([^[]*)\\[(.*)\\]$',$idx,$regs))
{
return $regs[2] && isset($arr[$regs[1]][$regs[2]]);
}
return isset($arr[$idx]);
}
function set_array(&$arr,$idx,$val)
{
if (!is_array($arr))
{
die('set_array() $arr is no array');
}
$idxs = explode('[',str_replace(']','',$idx));
$pos = &$arr;
while (list($n,$idx) = each($idxs))
{
$pos = &$pos[$idx];
}
$pos = $val;
}
function &get_array(&$arr,$idx)
{
if (!is_array($arr))
{
die('set_array() $arr is no array');
}
$idxs = explode('[',str_replace(']','',$idx));
$pos = &$arr;
while (list($n,$idx) = each($idxs))
{
if (!is_array($pos))
{
return $pos = '';
}
$pos = &$pos[$idx];
}
return $pos;
}
function unset_array(&$arr,$idx)
{
if (!is_array($arr))
{
die('set_array() $arr is no array');
}
$idxs = explode('[',str_replace(']','',$idx));
$pos = &$arr;
while ((list($n,$idx) = each($idxs)) && $n < count($idxs)-1)
{
$pos = &$pos[$idx];
}
unset($pos[$idx]);
}
/*!
@function complete_array_merge
@syntax complete_array_merge( $old,$new )
@author ralfbecker
@abstract merges $old and $new, content of $new has precedence over $old
@discussion THIS IS NOT THE SAME AS PHP4: array_merge (as it calls itself recursive for values which are arrays.
*/
function complete_array_merge($old,$new)
{
@reset($new);
while (list($k,$v) = @each($new))
{
if (!is_array($v) || !isset($old[$k]))
{
$old[$k] = $v;
}
else
{
$old[$k] = $this->complete_array_merge($old[$k],$v);
}
}
return $old;
}
function cache_name($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 $cname;
}
/*!
@function store_in_cache()
@abstract stores the etemplate in the cache in phpgw_info
*/
function store_in_cache()
{
//echo "<p>store_in_cache('$this->name','$this->template','$this->lang','$this->version')</p>\n";
$GLOBALS['phpgw_info']['etemplate']['cache'][$this->cache_name()] = $this->as_array(1);
}
function in_cache($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['phpgw_info']['etemplate']['cache'][$cname]) ||
!empty($version) && $GLOBALS['phpgw_info']['etemplate']['cache'][$cname]['version'] != $version)
{
//echo " NOT found in cache</p>\n";
return False;
}
//echo " found in cache</p>\n";
return $cname;
}
function read_from_cache($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['phpgw_info']['etemplate']['cache'][$cname]);
return True;
}
return False;
}
/*!
@function read
@abstract Reads an eTemplate from the cache or database / filesystem (and updates the cache)
@param as discripted in soetemplate::read
@param $load_via name/array of keys of etemplate to load in order to get $name (only as second try!)
@result True if a fitting template is found, else False
*/
function read($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;
}
$this->store_in_cache();
}
return True;
}
/*!
@function save
@abstract saves eTemplate-object to db and update the cache
@params keys see soetemplate::save
@result the number of affected rows, 1 should be ok, 0 somethings wrong
*/
function save($name='',$template='.',$lang='.',$group='',$version='.')
{
if ($result = soetemplate::save($name,$template,$lang,$group,$version))
{
$this->store_in_cache();
}
return $result;
}
};
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