public DefaultTableMapping::getColumnNames($field_name)
Gets a mapping of field columns to database columns for a given field.
Parameters
string $field_name: The name of the entity field to return the column mapping for.
Return value
string[] The keys of this array are the keys of the array returned by FieldStorageDefinitionInterface::getColumns() while the respective values are the names of the database columns for this table mapping.
Overrides TableMappingInterface::getColumnNames
File
- core/lib/Drupal/Core/Entity/Sql/DefaultTableMapping.php, line 185
Class
- DefaultTableMapping
- Defines a default table mapping class.
Namespace
Drupal\Core\Entity\Sql
Code
public function getColumnNames($field_name) {
if (!isset($this->columnMapping[$field_name])) {
$this->columnMapping[$field_name] = array();
if (isset($this->fieldStorageDefinitions[$field_name]) && !$this->fieldStorageDefinitions[$field_name]->hasCustomStorage()) {
foreach (array_keys($this->fieldStorageDefinitions[$field_name]->getColumns()) as $property_name) {
$this->columnMapping[$field_name][$property_name] = $this->getFieldColumnName($this->fieldStorageDefinitions[$field_name], $property_name);
}
}
}
return $this->columnMapping[$field_name];
}
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