> --- It will NOT recalculate the options on the fly when the other > dropdown box has been selected. This probably could be done with some > ajax stuff or a forced HTTP form send.
This is precisely what I need. Btw I am using in Pharo (so no web). For now I switched to hand-written spec Form instead of using magritte... Peter On Wed, Dec 6, 2017 at 1:58 PM, Andreas Brodbeck <da...@mindclue.ch> wrote: > Am 06.12.17 um 11:34 schrieb Peter Uhnák: > > Hi, > > > > I'm trying to get dependent magritte descriptions, but it seems like this > > is not something that can be done in the descriptions: > > > > Imagine a class Contact with "city" and "country" descriptions. > > I would like to populate the city description based on the currently > > selected country > > > > ~~~~~~~~~~~~~~~~~~~~~~ > > descriptionCountry > > <magritteDescription> > > ^ MASingleOptionDescription new > > accessor: #country; > > label: 'Country'; > > options: self countries; > > yourself > > > > descriptionCity > > <magritteDescription> > > ^ MASingleOptionDescription new > > accessor: #city; > > label: 'City'; > > options: (self citiesInCountry: self country); > > yourself > > ~~~~~~~~~~~~~~~~~~~~~~ > > > > The problem with this approach is that both descriptions are in the same > > form, so I need to update the cities list even before the country is > saved > > back into the object. > > > > Is this possible in magritte? > > I had the same wish and came up with the following solution: > > --- It will calculate the options with a block instead of an already > given collection. > > --- It will recalculate (aka "not cache") the options if you hit the > "Save" button on the magritte form. > > --- It will NOT recalculate the options on the fly when the other > dropdown box has been selected. This probably could be done with some > ajax stuff or a forced HTTP form send. > > --- I use my own subclasses for magritte options, for example: > > MASingleOptionDescription subclass: #ALMaSingleModelOptionDescription > uses: TALMagritteOptionDescription > instanceVariableNames: '' > classVariableNames: '' > package: 'Albus-Magritte' > > --- See attached fileout of the Trait TALMagritteOptionDescription. > > --- You can then describe an option as follows: > > descriptionYourAttribute > <magritteDescription> > ^ALMaSingleModelOptionDescription new > accessor: #yourAccessor; > optionsBlock: ["stuff to calculate your collection"]; > label: 'Your label'; > yourself > > > > > Cheers, Andreas > > > -- > Andreas Brodbeck > www.mindclue.ch >
