DateTime Conversion in Form

Using Neos & Flow
1

Hi,

I get the following error when using a DateTime form field:

Could not convert target type “DateTime”: No converter found which can be used to convert from “__PHP_Incomplete_Class” or “object” to “DateTime”.

root<Neos.Fusion:Case>/ documentType<Neos.Fusion:Matcher>/ element<DigiPublica.Site:Document.Page>/ body<DigiPublica.Site:Component.DefaultLayout>/ content<Neos.Fusion:Component>/ main<Neos.Neos:ContentCollection>/ content<Neos.Neos:ContentCollectionRenderer>/ itemRenderer<Neos.Neos:ContentCase>/ default<Neos.Fusion:Matcher>/ element<Neos.Form.Builder:NodeBasedForm><Neos.Form.Builder:NodeBasedForm>/

packages:
neos/flow 6.2
neos/neos 5.2.1
neos/form 5.0.4
neos/form-builder 2.0.0
default preset

grafikgrafik grafik

Auszug error log:
Exception #1297759968 in line 118 of /html/neos5/Data/Temporary/Development/Cache/Code/Flow_Object_Classes/Neos_Form_ViewHelpers_Form_DatePickerViewHelper.php: Could not convert target type “DateTime”: No converter found which can be used to convert from “__PHP_Incomplete_Class” or “object” to “DateTime”.

77 Neos\Flow\Property\PropertyMapper_Original::convert(__PHP_Incomplete_Class, “DateTime”)
76 Neos\Form\ViewHelpers\Form\DatePickerViewHelper_Original::getSelectedDate()
75 Neos\Form\ViewHelpers\Form\DatePickerViewHelper_Original::render()
74 call_user_func(array|2|)

Content of _PHP_Incomplete_Class:
[__PHP_Incomplete_Class_Name] => DateTime
[date] => 2020-05-30 19:45:51.000000
[timezone_type] => 3
[timezone] => Europe/Berlin

Many thanks for your help.

2

Hello Jörg,

I’ve had the same problem and solved it by manually casting the DateTime object to a string inside the DatePicker form element.

Im using the Form FusionRenderer package:

prototype(Neos.Form:DatePicker) < prototype(Neos.Form.FusionRenderer:FormElement) {
    fieldContainer {
        field {
            tagName = 'input'
            attributes {
                type = 'date'
                name = ${elementName}
                // cast DateTime object to string
                value = ${elementValue ? Date.format(elementValue, 'Y-m-d') : ''}
            }
        }
    }
}

I hope this is helpful to you.

3

Hello Michael,

thank you for posting your solution and sorry for the late response. Unfortunatelly it does not work for me. Im getting another error:

119 Neos\Flow\Error\ErrorHandler::handleError(8, "Object of class __PHP_Incomplete_Class could not be converted to int", "/html/neos5/Data/Temporary/Development/Cache/Code/…Flow_Object_Classes/Neos_Eel_Helper_DateHelper.php", 67, array|2|) 118 Neos\Eel\Helper\DateHelper_Original::format(__PHP_Incomplete_Class, "Y-m-d") 117 call_user_func_array(array|2|, array|2|) 116 Neos\Eel\Context::call("format", array|2|) 115 Neos\Eel\ProtectedContext::call("format", array|2|) 114 Neos\Eel\Context::callAndWrap("format", array|2|) 113 Neos\Eel\CompilingEvaluator_Original::{closure}(Neos\Eel\ProtectedContext) 112 Neos\Eel\CompilingEvaluator_Original::evaluateAndUnwrap(Closure, Neos\Eel\ProtectedContext) 111 Neos\Eel\CompilingEvaluator_Original::evaluate("elementValue ? Date.format(elementValue, 'Y-m-d') : ''", Neos\Eel\ProtectedContext) 110 Neos\Eel\Utility_Original::evaluateEelExpression("${elementValue ? Date.format(elementValue, 'Y-m-d') : ''}", Neos\Eel\CompilingEvaluator, array|29|) 109 Neos\Fusion\Core\Runtime_Original::evaluateEelExpression("${elementValue ? Date.format(elementValue, 'Y-m-d') : ''}", Neos\Fusion\FusionObjects\DataStructureImplementation)