Class \Prado\Util\TDataFieldAccessor

TDataFieldAccessor class

TDataFieldAccessor is a utility class that provides access to a field of some data. The accessor attempts to obtain the field value in the following order:

If the data is an array, then the field is treated as an array index and the corresponding element value is returned;
If the data is a TMap or TList object, then the field is treated as a key into the map or list, and the corresponding value is returned.
If the data is an object, the field is treated as a property or sub-property defined with getter methods. For example, if the object has a method called getMyValue(), then field 'MyValue' will retrieve the result of this method call. If getMyValue() returns an object which contains a method getMySubValue(), then field 'MyValue.MySubValue' will return that method call result.

Class hierarchy

\Prado\Util\TDataFieldAccessor

Author: Qiang Xue <qiang.xue@gmail.com>
Since: 3.0

Methods summary
`public static`	`getDataFieldValue(mixed $data, mixed $field) : mixed` Evaluates the data value at the specified field. If the data is an array, then the field is treated as an array index and the corresponding element value is returned; the field name can also include dots to access subarrays. For example a field named 'MyField.MySubField' will first try to access $data['MyField.MySubField'], then try $data['MyField']['MySubField']. If the data is a TMap or TList object, then the field is treated as a key into the map or list, and the corresponding value is returned. If the data is an object, the field is treated as a property or sub-property defined with getter methods. For example, if the object has a method called getMyValue(), then field 'MyValue' will retrieve the result of this method call. If getMyValue() returns an object which contains a method getMySubValue(), then field 'MyValue.MySubValue' will return that method call result.

Inherited methods