Value from custom column in TCA select - typo3

Question

I created a select in Typo3 TCA, it's looks like this:
'company_address' => array(
'exclude' => 1,
'label' => 'Company Address',
'config' => array(
'type' => 'select',
'foreign_table' => 'pages',
'foreign_table_where' => ' AND doktype = 75',
'items' => array(
array('', 0)
),
'maxitems' => 1
)
),
By default value = uid of record, how to change this ?
I need that value = my_column. Is it possible ?

Answer 1

You can use a itemProcFunc to build your select options like you need them to be. In your TCA you change the config:
'company_address' => array(
'config' => array(
'type' => 'select',
'itemsProcFunc' => 'Vendor\\MyExt\\UserFunc\\TcaProcFunc->companyAddressItems'
'maxitems' => 1
)
)
You can implement your custom function then. I'll give you an example
namespace Vendor\MyExt\UserFunc;
class TcaProcFunc
{
/**
* #param array $config
* #return array
*/
public function companyAddressItems($config)
{
$itemList = [];
$rows = $this->getMySpecialDokTypeRowsFromDb();
foreach ($rows as $row) {
$itemList[] = ['Label of the item', $row['my_column']];
}
$config['items'] = $itemList;
return $config;
}
}
Whatever you store in $config['items'] will be the item List in your select box. To make this (untested) example work you have of course implement the method getMySpecialDokTypeRowsFromDb().