Viewing file:  lookuplinks.php (1.13 KB) -rw-r--r--
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<?php
/**
* getLookupMainTableSettings - tests whether the lookup link exists between the tables
*
* returns array with ProjectSettings class for main table if the link exists in project settings.
* returns NULL otherwise
*/
function getLookupMainTableSettings($lookupTable, $mainTableShortName, $mainField, $desiredPage = "")
{
global $lookupTableLinks;
if(!isset($lookupTableLinks[$lookupTable]))
return null;
if(!isset($lookupTableLinks[$lookupTable][$mainTableShortName.".".$mainField]))
return null;
$arr = &$lookupTableLinks[$lookupTable][$mainTableShortName.".".$mainField];
$effectivePage = $desiredPage;
if(!isset($arr[$effectivePage]))
{
$effectivePage = PAGE_EDIT;
if(!isset($arr[$effectivePage]))
{
if($desiredPage == "" && 0 < count($arr))
{
$effectivePage = $arr[0];
}
else
return null;
}
}
return new ProjectSettings($arr[$effectivePage]["table"], $effectivePage);
}
/**
* $lookupTableLinks array stores all lookup links between tables in the project
*/
function InitLookupLinks()
{
global $lookupTableLinks;
$lookupTableLinks = array();
}
?>
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