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<?php
// File triggers.inc.php / ibWebAdmin
// Purpose functions working with triggerss, included from accessories.php
// Author Lutz Brueckner <irie@gmx.de>
// Copyright (c) 2000, 2001, 2002, 2003, 2004 by Lutz Brueckner,
// published under the terms of the GNU General Public Licence v.2,
// see file LICENCE for details
// Created <03/01/19 15:52:24 lb>
//
// $Id: triggers.inc.php,v 1.15 2004/05/30 16:41:03 lbrueckner Exp $
//
// get the properties for all defined triggers
//
function &get_triggers(&$oldtriggers) {
global $dbhandle, $HTTP_POST_VARS;
$lsql = 'SELECT RDB$TRIGGER_NAME AS NAME,'
.' RDB$RELATION_NAME AS TNAME,'
.' RDB$TRIGGER_SEQUENCE AS POS,'
.' RDB$TRIGGER_TYPE AS TTYPE,'
.' RDB$TRIGGER_SOURCE AS TSOURCE,'
.' RDB$TRIGGER_INACTIVE AS STATUS'
.' FROM RDB$TRIGGERS'
.' WHERE (RDB$SYSTEM_FLAG IS NULL OR RDB$SYSTEM_FLAG=0)'
.' AND RDB$TRIGGER_NAME NOT IN (SELECT RDB$TRIGGER_NAME FROM RDB$CHECK_CONSTRAINTS)'
.' ORDER BY RDB$TRIGGER_NAME';
$res = ibase_query($dbhandle, $lsql) or ib_error(__FILE__, __LINE__, $lsql);
$triggers = array();
while ($obj = ibase_fetch_object($res)) {
$name = trim($obj->NAME);
$display = (isset($oldtriggers[$name])) ? $oldtriggers[$name]['display'] : 'close';
// get the source code for the open triggers
$tsource = '';
if ((isset($oldtriggers[$name]) && $display == 'open')
|| isset($HTTP_POST_VARS['acc_trigger_mod'])) {
$bid = ibase_blob_open($obj->TSOURCE);
$arr = ibase_blob_info($obj->TSOURCE);
// $arr[0] holds the blob length
$tsource = ibase_blob_get($bid, $arr[0]);
ibase_blob_close($bid);
// discard the 'AS ' from the source-string
$tsource = substr(trim($tsource), 3);
}
$triggers[$name] = array('table' => trim($obj->TNAME),
'type' => get_trigger_type($obj->TTYPE),
'pos' => $obj->POS,
'status' => get_trigger_status($obj->STATUS),
'source' => $tsource,
'display' => $display);
}
return $triggers;
}
//
// create trigger from the definitions in $triggerdefs
//
function create_trigger($triggerdefs) {
global $s_login, $isql, $binary_output, $binary_error;
$isql = trigger_create_source($triggerdefs);
if (DEBUG) add_debug('isql', __FILE__, __LINE__);
// this must be done by isql because 'create trigger' is not supported from within php
list($binary_output, $binary_error) = isql_execute($isql, $s_login['user'], $s_login['password'], $s_login['database'], $s_login['host']);
return ($binary_error != '' || count($binary_output) > 0) ? FALSE : TRUE;
}
function trigger_create_source($triggerdefs) {
$isql = "SET TERM !! ;\n"
.'CREATE TRIGGER '.$triggerdefs['name'].' FOR '.$triggerdefs['table']
.' '.$triggerdefs['status'].' '.$triggerdefs['type'];
if ($triggerdefs['pos'] != 0) {
$isql .= ' POSITION '.$triggerdefs['pos'];
}
$isql .= " AS\n".$triggerdefs['source']."\n"
."SET TERM ; !!\n";
return $isql;
}
function modify_trigger($name, $triggerdefs) {
global $s_login, $isql, $binary_output, $binary_error;
$isql = 'DROP TRIGGER '.$name.";\n"
.trigger_create_source($triggerdefs);
if (DEBUG) add_debug('isql', __FILE__, __LINE__);
list($binary_output, $binary_error) = isql_execute($isql, $s_login['user'], $s_login['password'], $s_login['database'], $s_login['host']);
return ($binary_error != '' || count($binary_output) > 0) ? FALSE : TRUE;
}
//
// drop the trigger $name off the database
//
function drop_trigger($name) {
global $s_triggers, $dbhandle, $ib_error;
global $lsql;
$lsql = 'DROP TRIGGER '.$name;
if (DEBUG) add_debug('lsql', __FILE__, __LINE__);
if (!@ibase_query($dbhandle, $lsql)) {
$ib_error = ibase_errmsg();
}
else {
unset($s_triggers[$name]);
}
}
//
// deliver the html for an opened view on the views panel
//
function &get_opened_trigger($name, &$trigger, $url) {
global $dbhandle, $red_triangle_icon, $acc_strings, $ptitle_strings;
$html = <<<EOT
<nobr>
<a href="$url"><img src="$red_triangle_icon" alt="${ptitle_strings['Close']}" title="${ptitle_strings['Close']}" border="0" hspace="7"></a><b>$name</b>
</nobr>
<nobr>
<table cellpadding="0" cellspacing="0">
<tr>
<td width="26">
</td>
<td>
<table border cellpadding="3" cellspacing="0">
<tr>
<th>${acc_strings['Table']}</th>
<th>${acc_strings['Type']}</th>
<th>${acc_strings['Pos']}</th>
<th>${acc_strings['Status']}</th>
<th>${acc_strings['Source']}</th>
</tr>
<tr>
<td valign="top"> ${trigger['table']}</td>
<td valign="top"> ${trigger['type']}</td>
<td valign="top"> ${trigger['pos']}</td>
<td valign="top"> ${trigger['status']}</td>
<td valign="top"><pre>${trigger['source']}</pre></td>
</tr>
</table>
</td>
</tr>
</table>
</nobr>
EOT;
return $html;
}
//
// return the definition sourcecode for a trigger
//
function get_trigger_source($name) {
global $dbhandle;
$tsource = '';
$lsql = 'SELECT RDB$TRIGGER_SOURCE AS TSOURCE'
.' FROM RDB$TRIGGERS'
." WHERE RDB\$TRIGGER_NAME='".$name."'";
$res = ibase_query($dbhandle, $lsql) or ib_error(__FILE__, __LINE__, $lsql);
$obj = @ibase_fetch_object($res);
if (is_object($obj)) {
$bid = ibase_blob_open($obj->TSOURCE);
$arr = ibase_blob_info($obj->TSOURCE);
// $arr[0] holds the blob length
$tsource = trim(ibase_blob_get($bid, $arr[0]));
ibase_blob_close($bid);
// discard the 'AS ' from the source-string
$tsource = substr($tsource, 3);
}
ibase_free_result($res);
return $tsource;
}
//
// return the string equivalent for the trigger-status $int
//
function get_trigger_status($int) {
if ($int == 0) {
return 'Active';
} elseif ($int == 1) {
return 'Inactive';
}
die('Error: get_trigger_status() bad parameter');
}
//
// return the string equivalent for the trigger-type $int
//
function get_trigger_type($int) {
global $trigger_types;
return $trigger_types[$int];
}
//
// outputs a html-table with a form to define/modify a trigger
//
// Variables: $title headline-string for the table
function trigger_definition($title) {
global $s_triggerdefs, $trigger_types, $acc_strings, $s_cust;
$trigger_source = htmlspecialchars($s_triggerdefs['source']);
?>
<table border cellpadding="3" cellspacing="0">
<tr>
<th colspan="5" align="left"><?php echo $title; ?></th>
</tr>
<tr>
<td><b><?php echo $acc_strings['Name']; ?></b><br>
<input type="text" size="20" maxlength="31" name="def_trigger_name" value="<?php if (isset($s_triggerdefs['name'])) echo $s_triggerdefs['name']; ?>">
</td>
<td><b><?php echo $acc_strings['Table']; ?></b><br>
<select name="def_trigger_table">
<?php build_table_options($s_triggerdefs['table'], array('noviews', 'owner')); ?>
</select>
</td>
<td><b><?php echo $acc_strings['Type']; ?></b><br>
<?php echo get_selectlist('def_trigger_type', $trigger_types, $s_triggerdefs['type'], FALSE); ?>
</td>
<td align="center"><b><?php echo $acc_strings['Position']; ?></b><br>
<input type="text" size="2" maxlength="2" name="def_trigger_pos" value="<?php if (isset($s_triggerdefs['pos'])) echo $s_triggerdefs['pos']; ?>">
</td>
<td><b><?php echo $acc_strings['Status']; ?></b><br>
<select name="def_trigger_status">
<option<?php if ($s_triggerdefs['status'] == 'Active') echo ' selected'; ?>> Active
<option<?php if ($s_triggerdefs['status'] == 'Inactive') echo ' selected'; ?>> Inactive
</select>
</td>
</tr>
<tr>
<td colspan="5">
<b><?php echo $acc_strings['Source']; ?></b><br>
<textarea name="def_trigger_source" rows="<?php echo $s_cust['textarea']['rows']; ?>" cols="<?php echo $s_cust['textarea']['cols']; ?>" wrap="virtual"><?php echo $trigger_source; ?></textarea>
</td>
</tr>
</table>
<?php
}
//
// save the form vars we got from trigger_definition()
//
function save_triggerdefs() {
global $s_triggerdefs, $HTTP_POST_VARS;
$s_triggerdefs['name'] = strtoupper(get_request_data('def_trigger_name'));
$s_triggerdefs['table'] = $HTTP_POST_VARS['def_trigger_table'];
$s_triggerdefs['type'] = $HTTP_POST_VARS['def_trigger_type'];
$s_triggerdefs['pos'] = $HTTP_POST_VARS['def_trigger_pos'];
$s_triggerdefs['status'] = $HTTP_POST_VARS['def_trigger_status'];
$s_triggerdefs['source'] = get_request_data('def_trigger_source');
}
//
// mark all triggers as opened or closed in $s_triggers
//
function &toggle_all_triggers(&$triggers, $status) {
foreach (array_keys($triggers) as $name) {
$triggers[$name]['display'] = $status;
if ($status == 'open' && empty($triggers[$name]['source'])) {
$triggers[$name]['source'] = get_trigger_source($name);
}
}
return $triggers;
}
?>
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