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<?php
namespace AC\Column;
use AC\Column;
abstract class Meta extends Column {
/**
* Return the meta_key of this column
* @return string
*/
abstract public function get_meta_key();
/**
* Is data stored serialized?
* @var bool
*/
private $serialized = false;
/**
* @return bool
*/
public function is_serialized() {
return $this->serialized;
}
/**
* @param bool $serialized
*/
public function set_serialized( $serialized ) {
$this->serialized = (bool) $serialized;
}
/**
* @param $id
*
* @return bool|mixed
* @see Column::get_raw_value()
* @since 2.0.3
*/
public function get_raw_value( $id ) {
return $this->get_meta_value( $id, $this->get_meta_key(), true );
}
/**
* Retrieve metadata object type (e.g., comment, post, or user)
* @return string
* @since 3.0
*/
public function get_meta_type() {
return $this->get_list_screen()->get_meta_type();
}
/**
* Get meta value
*
* @param int $id
* @param string $meta_key
* @param bool $single
*
* @return mixed
*/
public function get_meta_value( $id, $meta_key, $single = true ) {
return get_metadata( $this->get_meta_type(), $id, $meta_key, $single );
}
}
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