egroupware_official/phpgwapi/inc/class.hooks.inc.php

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<?php
/**************************************************************************\
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* phpGroupWare API - Hooks *
* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
* Allows applications to "hook" into each other *
* Copyright (C) 2000, 2001 Dan Kuykendall *
* -------------------------------------------------------------------------*
* This library is part of the phpGroupWare API *
* http://www.phpgroupware.org/api *
* ------------------------------------------------------------------------ *
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* 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 *
\**************************************************************************/
/* $Id$ */
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/*!
@class hooks
@abstract class which gives ability for applications to set and use hooks to communicate with each other
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@author Dan Kuykendall
@copyright LGPL
@package phpgwapi
@access public
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*/
class hooks
{
/*!
@function read()
@abstract currently not being used
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*/
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function read()
{
global $phpgw;
$db = $phpgw->db;
$db->query("select * from phpgw_hooks");
while ($db->next_record())
{
$return_array[$db->f("hook_id")]["app"] = $db->f("hook_appname");
$return_array[$db->f("hook_id")]["location"] = $db->f("hook_location");
$return_array[$db->f("hook_id")]["filename"] = $db->f("hook_filename");
}
if(isset($return_array))
{
return $return_array;
}
else
{
return False;
}
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}
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/*!
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@function process
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@abstract process the hooks
@discussion not currently being used
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@param \$type
@param \$where
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*/
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function process($type,$where = "")
{
global $phpgw_info, $phpgw;
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$currentapp = $phpgw_info["flags"]["currentapp"];
$type = strtolower($type);
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if ($type != "location" && $type != "app")
{
return False;
}
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// Add a check to see if that location/app has a hook
// This way it doesn't have to loop everytime
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while ($hook = each($phpgw_info["hooks"]))
{
if ($type == "app")
{
if ($hook[1]["app"] == $currentapp)
{
$include_file = $phpgw_info["server"]["server_root"] . "/"
. $currentapp . "/hooks/"
. $hook[1]["app"] . $hook[1]["filename"];
include($include_file);
}
}
elseif ($type == "location")
{
if ($hook[1]["location"] == $where)
{
$include_file = $phpgw_info["server"]["server_root"] . "/"
. $hook[1]["app"] . "/hooks/"
. $hook[1]["filename"];
if (! is_file($include_file))
{
$phpgw->common->phpgw_error("Failed to include hook: $include_file");
}
else
{
include($include_file);
}
}
}
}
}
}
?>