Gets the value that is stored in this for key
and converts it to the enum value that it
represents.
In order to use this function the type of the value must be a string and it must be marked in the schema file as an enumerated type.
It is a programmer error to give a key
that isn't contained in the schema for this or is
not marked as an enumerated type.
If the value stored in the configuration database is not a valid value for the enumerated type then this function will return the default value.
this |
a Settings object |
key |
the key to get the value for |
the enum value |