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-rw-r--r--framework/Util/TDataFieldAccessor.php4
1 files changed, 3 insertions, 1 deletions
diff --git a/framework/Util/TDataFieldAccessor.php b/framework/Util/TDataFieldAccessor.php
index e25151db..24fcbd36 100644
--- a/framework/Util/TDataFieldAccessor.php
+++ b/framework/Util/TDataFieldAccessor.php
@@ -35,7 +35,9 @@ class TDataFieldAccessor
/**
* 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;
+ * 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