$app->getRecord() always get the last record

[kevinwen]

I did some testing and found that the following code would output the different message when creating a new record:

Code: Select all

    function field1__permissions(&$record){
        $app =& Dataface_Application::getInstance();
        $rec = $app->getRecord();
        vardump($record->val(primary_id'));
        echo "<br />";
        vardump($rec->val('primary_id'));
    }


The output would look like this:

Code: Select all

string(4) "1957"
NULL


Is it what xataface supposed to do? If it is, why?

[shannah]

$app->getRecord() returns the record that is matched by the current query. This corresponds exactly to the record that you would be editing in the edit action or viewing in the view action. In list view this would correspond with the record at -cursor position of the list.

The $record parameter of the permissions method refers to the record on which permissions are being checked. In any given request many calls are made to getPermissions() on different records. Hence these two values are not the same.

[kevinwen]

I actually need to check the field value inside the widget function:

Code: Select all

function block__field01_widget(){
    $app =& Dataface_Application::getInstance();
    $rec = $app->getRecord();

    $field_value = $rec->val('field01');
    if ($field_value){
        //do something
    } else {
        // do something else
    }
}

and I found that with the edit action, $rec->val('field01') returns the value for the right record, but with the new action, it always returns the value in the last inserted record.

In my understanding, with the new action, it should return null or nothing rather than something else. Is it what the $app->getRecord() supposed to do for the new action?

[shannah]

$app->getRecord() returns the record at the current cursor position. In the new action you can consider this value as undefined because it could be any record.

In the new action the record you're about to add doesn't exist yet.