Updating a column with 1 updates it with 2 - php

Question

I'm a bit confused. I have a website with a sort of user-profiles. When a visitor hits a user-page I want to update the number of views by a date and userid. But, no matter what i do, the number of views is updated with 2 instead of one. I've created an query-output for all queries which are executed during a page-request. The update-query is correct and there's only 1 update-query executed during the page-request.
This is my data-structure:
CREATE TABLE `ProfileView` (
`Id` int(8) NOT NULL auto_increment,
`UserId` int(8) NOT NULL,
`Date` date NOT NULL,
`Views` int(8) NOT NULL,
PRIMARY KEY (`Id`),
KEY `UserId` (`UserId`,`Date`)
) ENGINE=MyISAM AUTO_INCREMENT=10 DEFAULT CHARSET=latin1;
No matter what I do, the column 'Views' is always updated by 2 instead of 1.
The logic being executed (called from a controller, controller gets called from the view. Decorator is basically a sealed stdClass providing strict coding guidance because misspelled properties result in a PropertyDoesntExistException):
Workflow:
# user-details.php
$oControllerProfileView = new Controller_ProfileView();
$oControllerProfileView->Replace($iUserId);
---
# Controller.ProfileView.php
public function Replace($iUserId) {
// validation
Model_ProfileView::Replace($iUserId, date('Y-m-d'));
}
---
# Model.ProfileView.php
static public function Replace($iUserId, $sDate) {
$oData = MySQL::SelectOne("
SELECT Views
FROM ProfileView
WHERE UserId = ".$iUserId."
AND Date = '".$sDate."'");
if(is_a($oData, 'Decorator')) {
MySQL::Query("
UPDATE ProfileView
SET `Views` = ".($oData->Views + 1)."
WHERE UserId = ".$iUserId."
AND Date = '".$sDate."'");
} else {
MySQL::Query("
INSERT INTO ProfileView
VALUES (
NULL,
".$iUserId.",
'".$sDate."',
1
)");
}
}