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PHP Generator for MySQL online Help

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OnBeforeUpdateRecord

This event occurs when the Update command is executed, and before the actual update.

 

Signature:

function OnBeforeUpdateRecord ($page, $oldRowData, &$rowData, &$cancel,  &$message, 

       &$messageDisplayTime, $tableName)

 

Parameters:

$page

An instance of the Page class declared in components/page.php.

$oldRowData

The associative array of old (previous) values of the currently processed row.

$rowData

The associative array of values that corresponds to the currently processed row.

$cancel

The value indicating whether the operation should be canceled.

$message

The message string that is displayed after the operation is completed (or canceled).

$messageDisplayTime

A time interval (in seconds) after which the message will disappear automatically. Default value is 0 (the message will not disappear).

$tableName

The name of processed table.

 

Example 1:

if (!(allowDataEditing())) {

       $cancel = true;

       $message = 'The application is running in read-only mode.';

}

 

Example 2:

The following code allows to assign values to some fields (usually these fields are not included in an edit form)

before updating of a record:

 

$rowData['line_total'] = $rowData['quantity'] * $rowData['unit_price'];

$rowData['update_datetime'] = SMDateTime::Now();

$rowData['last_updated_by'] = $page->GetCurrentUserId();

 

See also: OnBeforeDeleteRecord, OnBeforeInsertRecord, OnAfterUpdateRecord.



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