Congratulations!
On March 12, 2015 7:29:02 PM CET, Alexander Burger <[email protected]> wrote: >Hello list, > >let me announce 7fach BlitzMenu, our first attempt for a public >application since 9 years :) > >It is for gastronomers, restaurants or canteens, to maintain their >dishes and beverages in a database, and allow them to generate their >daily or weekly menus with just a few mouse clicks. > >Independent from the question whether it will be a commercial success >(I >hope it does), it has some interesting aspects from a technical >(PicoLisp) point of view: > >1. It allows the user to directly edit PostScript layout templates in a > Canvas. Then these layouts can be combined with groups of articles > from the database to generate PDF and HTML files. > >2. I found out that the '+Bag' relations can be nested. This allows the > creation of multi-dimensional data structures, directly in the DB > model. > > Normally, a (+List +Bag) represents a two-dimensional table, which > maps to a '+Chart' in the GUI. To my own surprise, it works also if > an element in a bag is a (+List +Bag) again (i.e. nested Bags), > resulting in a three-dimensional structure: > > (rel grp (+List +Bag) # Groups/Articles > ((+Bool)) # Aktive > ((+String)) # Description > ((+List +Bag) # Articles > ((+Bool)) # Aktive > ((+Link) (+Art)) ) ) # Article > > And: I found a way to allow direct editing of these structures in the > GUI, by connecting charts on the different levels with radio buttons. > In principle, this can be extended to as many dimensions as desired. > >The system is ready for production use now, and can be found at > > http://BlitzMenu.7fach.de > >Initial language is German, but you can switch to English if you like. >Other languages are planned but not yet supported. > >The second entry in the navigation on the left is "Introduction". Here >you may view a short video (without sound) showing the basic usage. > >And the third entry is "Try yourself". If you click on "Start demo >application" you get a private demo database in a sandbox, where you >can >play around yourself. Note that your data are lost when you close the >browser session. > >Please don't submit the form on "New registration" (unless, of course, >you want to become a customer ;) > >♪♫ Alex >-- >UNSUBSCRIBE: mailto:[email protected]?subject=Unsubscribe -- Skickat från min Android-telefon med K-9 E-post. Ursäkta min fåordighet.
