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lib/Traits/FromRow.php

@@ -0,0 +1,52 @@
+<?
+namespace Traits;
+
+/**
+ * Normally, the `DbConnection` class fills in an object itself, using reflection to decide on enums. Sometimes, we want to define an explicit `FromRow()` method on a class. This trait provides a default `FromRow()` method that assigns columns to object properties, and attemps to figure out enum types. The object can override this method if necessary.
+ */
+trait FromRow{
+	/**
+	 * Fill an object with the given database row.
+	 * This is useful when a subclass has to fill its object in a `FromRow()` method, but its parent class also has a `FromRow()` method defined. For example, `CompoundAction` and `Action`.
+	 *
+	 * @template T of self
+	 *
+	 * @param T $object
+	 * @return T
+	 */
+	public static function FillObject(object $object, \stdClass $row): object{
+		foreach(get_object_vars($row) as $property => $value){
+			if(is_string($value)){
+				try{
+					$type = (new \ReflectionProperty($object, $property))->getType();
+					if($type instanceof \ReflectionNamedType){
+						$typeName = $type->getName();
+						if($typeName != 'string' && is_a($typeName, 'BackedEnum', true)){
+							$object->$property = $typeName::from($value);
+						}
+						else{
+							$object->$property = $value;
+						}
+					}
+
+
+				}
+				catch(\Exception){
+					$object->$property = $value;
+				}
+			}
+			else{
+				$object->$property = $value;
+			}
+		}
+
+		return $object;
+	}
+
+	/**
+	 * Return an object based on a database row result. This is a fallback object filler for when the parent class hasn't defined their own.
+	 */
+	public static function FromRow(\stdClass $row): static{
+		return self::FillObject(new static(), $row);
+	}
+}