Magento2 : multi select box is not showing option with custom source

Question

Working on custom extension, I have implemented multi select option using custom source. It don't show the option in multi select box. Anybody knows the reason? Check screenshot,

$eavSetup->addAttribute(
 \Magento\Catalog\Model\Product::ENTITY,
 'extension_source_user',
 [
 'type' => 'varchar',
 'label' => 'Used Title',
 'backend' => 'Magento\Eav\Model\Entity\Attribute\Backend\ArrayBackend',
 'input' => 'multiselect',
 'source' => 'company\extension\Model\Source\Custom\User',
 'required' => false,
 'sort_order' => 7,
 'global' => \Magento\Catalog\Model\ResourceModel\Eav\Attribute::SCOPE_STORE,
 'apply_to' => 'simple,configurable,virtual',
 'group' => 'company',
 'searchable' => false,
 'filterable' => false
 ]
 );

enter image description here

Answer 1

It the issue of your source model "'source' => 'company\extension\Model\Source\Custom\User'"

You need to return option array in the form of key, value pair like :

public function getOptionArray()
{
 $_options = array();
 foreach ($this->getAllOptions() as $option) {
 $_options[$option["value"]] = $option["label"];
 }
 return $_options;
}

• Gaurav Jain: This is not working for me :( Can you share any link with full example? What needs to be coded in category_form.xml?

Answer 2

Please try the following code.

In this code $option['value'] is the value of selected option and $option['label'] is the label to be shown.

public function getOptionArray()
 {
 $_options = array();
 $index = 0;
 foreach ($this->getAllOptions() as $option) {
 $_options[$index]['value'] = $option['value'];
 $_options[$index]['label'] = $option['label'];
 $index++;
 }
 return $_options;
}