we want to AVOID explicit casts as much as possible - you should cast to string on data side - so no from my side

post usecase/steps to reproduce

closing as no response

can you please reopen this one? I am quite busy and will provide a test case. Just closing an issue after two days isn't very polite.

reopened, but keep in mind that I will be very against solving this like you propose ;-)

Thanks for reopening. Well, there has to be some typecast to string somewhere it seems. Its logical that table totals are int/float, and somewhere along the stack trace they need to by cast to string. I didn't find any demo with numeric table totals, otherwise I'd guess they would fail.

revert your fix and update /demos/collection/table.php demo to replicate

Have the same issue with a simple model with field of 'type'=>'money'. The following table throws the same error as above:
`$regiontable = \atk4\ui\Table::addTo($app);
$regiontable->setModel($groupmodelsplit, false);

$regiontable->addColumn('continent');
$regiontable->addColumn('turnover_LTM', [\atk4\ui\Table\Column\Money::class]);

$regiontable->addTotals(['continent' => 'Totals:', 'turnover_LTM' => ['sum']]);`

@mkrecek234 please submit a PR with modified demo with this and only this isses, I will look/fix

@PhilippGrashoff - You should probably type cast the value inside Table\Column\getTotalsCellHtml() method:

    public function getTotalsCellHtml(Field $field, $value)
    {
        return $this->getTag('foot', (string) $this->getApp()->ui_persistence->typecastSaveField($field, $value));
    }

The bug can be reproduce inside /demos/collection/table.php when changing the 'salary' field from money to integer type.

Well, the question is if we use this fix or start refactoring Persistence/UI now. WDYT? We definitely should fix this error on Table totals soon.

@PhilippGrashoff does this solve your issue?

Hi, will test, but looks like the proper place to fix this.