Re: [xwiki-users] help how to inherit a class from another

mn... I think it works for me. Thanks for your advice. P.S. They implement class, why not inheritance?

2014/1/7 Valdis Vītoliņš <valdis.vitolins(a)odo.lv> > If you add different objects from several classes to XWiki document, > common problem is that for document representation sheet of first found > class is used. > Therefore for composite objects you need to add > XWiki.DocumentSheetBinding object > which points to sheet document, with content like this (not tested!): > {{velocity}} > #set($obj1=$doc.getObject('Space.Obj1Class')) > #set($obj2=$doc.getObject('Space.Obj2Class')) > ... > #if($obj1) > #set($class1=obj1.xWikiClass) > #foreach($prop in $class1.properties) > |$prop.prettyName|$doc.display($prop.getName($obj1)) > #end > #end > ... > #if($obj2) > .... > > Look at > http://extensions.xwiki.org/xwiki/bin/view/Extension/Sheet+Module > for more. Note that you can save all these objects in specific template. > > Valdis >> hi, >> >> >> Thanks for your answer. >> Currently I am using a set of classes to represent my data, for >> display part they just need to directly show the properties. If I use >> composit, for the common part I need to identify if it's common, and >> there will be some "if-else" in each of the subclasses. >> >> >> I just wandering if we can have some auto-load, so that I don't need >> to use "if-else" everywhere, and it will be easy to maintain, just >> like the inherited class. >> >> >> >> 2014/1/5 Valdis Vītoliņš <valdis.vitolins(a)odo.lv> >> If you mean these classes defined in class editor defined >> in .../xwiki/bin/view/XWiki/XWikiClasses >> AFAIK these doesn't support extension. >> >> So, you need to use composition instead. Add object with type >> of the >> common class, and for few other documents add another object >> with type >> of "extended" class. >> >> You will need to adjust class sheet object to display fields >> of other >> tyepe of objects also (look at >> http://extensions.xwiki.org/xwiki/bin/view/Extension/Sheet >> +Module ) >> >> Valdis >> >> > hi, >> > >> > the Class I mean is XClass, which is used in Wiki pages. >> > >> > thanks, >> > B.R./ZZH >> > >> > >> > 2014/1/5 Zhihua Zheng <zhihua25(a)gmail.com> >> > >> > > hi all, >> > > >> > > I have couple of classes they are similar, most of them >> are the same, but >> > > some small parts are different. So that I want to use a >> arch that there is >> > > a common class holds all the common properties, and the >> real classes are >> > > inherited from the common. >> > > But how to achieve that? >> > > >> > > thanks! >> > >