bej34
Posts: 14
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| Posted: 06/07/2006, 7:49 AM |
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 I think that I have found a solution for the old foreign key constraint errors, a way to make them user friendly.
Step 1: On the record form Insert a hidden file field labeled my_id. You should connect this field to the database and give it the value of the primary key for your table.
Step 2: You should highlight (or select) the record form and change the Custom Insert and Custom Update to table and delete the my_id control (field) from the list of places to get the values for your SQL statement.
Step 3: Add a custom code action on the Before Delete event. When the custom code page loads insert the code below and change it according to your page.
$secwhere = $your_form_name->my_id->GetValue();
$dbb = new clsDBYourDatabaseName();
$fkcheck = CCDLookUP("column","table","primary_key = $secwhere",$dbb);
if($fkcheck !== "") {
//Modify the HTML Below to fit your page. You can modify the colors and definitely modify the pictures. I left the pictures
//in to show you how to insert them, they can definitely be removed if you don't need them. The links to the child records
//can also be removed or modified. Good Luck
$your_form_name->Errors->addError("<font color=\"0066CC\"><img src=\"images/FK_notice.jpg\" alt=\"Notice Flag - Click here to find out what this means\"><strong>CHILD RECORD ERROR</strong> - This record cannot be deleted because it has a dependent question(s) - Dependent <a href=\"questions.php?kb_qid=$fkcheck\"><strong>Question ID - $fkcheck</strong></a><br>You must find the question <a href=\"questions.php?kb_qid=$fkcheck\"><strong>(Question ID - $fkcheck)</strong></a> and update or delete it before deleting this department.</font>");
$your_form_name->DeleteAllowed = false;
}
I hope this code helps someone it sure helped my project. Glad to contribute. If you find some bugs please feel free to post them.
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