26 Mar
2006
26 Mar
'06
10:10 p.m.
Hi Stef,
I wanted to know this was possible to specify how an
field should
be saved and reloaded. For example I wanted to save a date and
reload it.
sure, this is possible.
I added
MADateDescription>>parseString: aString
^ self parseString: aString protected: [ aString asDate ].
I don't have #parseString:protected: in my image, I guess you are
using a very old version. In fact, in very early versions the parsing
and printing of strings was fixed, but now it is done using a
configurable visitor: have a look at the methods #toString: and
#fromString: in MADescription.
but I have the impression that been able to specify at
the
description level the way the values are saved and filed in would
make sense.
I checked on my old version of MA, but I could not find how the
MADescription itself was describing the condition because it would
be the same process may be been able to specify a block or a
selector for each of the action would be cool.
The visitor can be changed on a per-description base. It can also be
chosen at the meta-description level, if you want to give this
possibility to the end-users. The default visitors used are
MAStringReader and MAStringWriter.
Cheers,
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch