I created a custom table with additional settings for customers. Next I added a field to the customer core table in which I'd like to store the id choice per customer. I extended with EntityExtensionInterface the customerDefinition :
public function extendFields(FieldCollection $collection): void
{
$collection->add(
(new OneToOneAssociationField(
'customerSetting',
'customer_setting',
'id',
WdtCustomerSettingsDefinition::class,
true
))->addFlags(new Inherited())
);
}
public function getDefinitionClass(): string
{
return CustomerDefinition::class;
}
When I manually manipulate the customer table, with an id from my custom table in the added field, I can retrieve and use the settings from my custom table in the storefront.
For the backend I created a single select to the entity custom_table,
<sw-entity-single-select entity="wdt_customer_settings" v-model="customer.extensions.customerSetting.id" >
</sw-entity-single-select>
and with the manually 'injected' id from the custom table, this choice indicates indeed 'selected' However, after changing to another choice and saving results in an error: Customer could not be saved.
What am I missing?