+1 — Mark
On Oct 7, 2017, at 9:14 AM, Markus Ruggiero <mailingli...@kataputt.com<mailto:mailingli...@kataputt.com>> wrote: Andre, please take this seriously Chick Hill wrote: And it will also show you the correct and effective way to leverage WO and Wonder. The architecture is quite different from most other frameworks and if you don’t make the adjustment to that, you will be forever struggling against the intention of the frameworks. One important thing to note (and this seems to be a major stumbling block for all non-WOers): We are programming objectoriented, we are not programming SQL / database stuff!! When you think "OO" you think "object". An object encapsulates state and shows behavior. When you start to learn oo-programming you usually have instance variables and methods. The object's state is kept in the instance vars and the behavior is defined by the methods. It is good and strongly recommended style to make instance variables private (or maybe proteced) and create public accessors (getter and setter methods). One should never access an object's state directly (instance variables) from outside the object but access them through the getter and setter methods. This allows the object (actually the programmer writing the class) to re-implement the internal representation of state in any way that makes sense. Any piece of code using the getter/setter methods won't be affected by that. The EOF allows you to implement objects in a way so that their internal state is not kept in instance variables but is connected to a database record. Correct oo-thinking says "I access the object's state via accessor methods. I don't care where/how the object manages to store that state". Your enterprise objects are based on classes that inherit from framework classes. There is functionality in those classes to pull/push state to/from a relational database. You as the "user" of the object DO NOT CARE! The EOF framework manages this for you. You MUST NOT THINK "database/table/record" but THINK "OBJECT". Instead of asking "how do I retrieve customer records from the database?" you should think "how do I make the framework give me a list of customer objects that have their state backed by a record in the database?". With this in mind EOF becomes almost trivial to use. Any programmer coming from "standard java" background has a problem with this thinking because most persistence frameworks are more or less nicely built "sql generators". Thus one's thinking is often closer to "data record" instead of "object". Not so with Wonder and EOF. Just think "object" and you are all set. With the EOModel you basically tell the EOF framework how to "map object thinking into a relational database". Let the framework do it, you are an oo-programmer! Hope this clears things a bit. Have fun ---markus--- On 6 Oct 2017, at 16:38, André Rothe <andre.ro...@zks.uni-leipzig.de<mailto:andre.ro...@zks.uni-leipzig.de>> wrote: Hi Markus, I'm on part C of the book... Best regards Andre On 06.10.2017 15:51, Markus Ruggiero wrote: Hi Andre, I am the author of Learning the Wonders. If you have any question regarding the book you can reach me here or directly by writing to aut...@learningthewonders.com<mailto:aut...@learningthewonders.com> <mailto:aut...@learningthewonders.com>. I'll be glad to help you get started. ---markus--- PS Chuck and Theo, thanks for the recommendation :-))) Yes, I use the book as official coursebook in formal education in Switzerland for the module "Object Oriented implementation of Multiuser Applications". This in itself has nothing to do with Wonder but everything with oo-concepts and I use Wonder/WebObjecs as a showcase for clean oo design. On 5 Oct 2017, at 23:12, Theodore Petrosky <tedp...@yahoo.com<mailto:tedp...@yahoo.com> <mailto:tedp...@yahoo.com>> wrote: "Learning the Wonders" is the best book to start with. The author uses that book in classes he teaches (I believe in Germany). I would recommend that book to start with over the others that are available. All of the videos are available in the iTunes podcasts. I know the other links sometimes don’t work. Use the iTunes podcasts. go to podcasts, then select Store, then search for WebObjects. I know you mentioned that you viewed the two chapters of Leaning the Wonders. It really gets going after that. Ted On Oct 5, 2017, at 3:31 PM, Chuck Hill <ch...@gevityinc.com<mailto:ch...@gevityinc.com> <mailto:ch...@gevityinc.com>> wrote: Here is a good place to start: https://www.amazon.com/Learning-Wonders-Markus-Ruggiero-ebook/dp/B00FCDHDAA<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.amazon.com_Learning-2DWonders-2DMarkus-2DRuggiero-2Debook_dp_B00FCDHDAA&d=DwMFaQ&c=BNNF-YNv0CLLslhP2Bcx5Q&r=R0ZqsewJs3eSJk7vLCqZv0r5kJlLXQLnGTeg9t8MlqA&m=dLIjBz764eJDvZ58wjM2hkBUeFqpRryWvlq9mCHWfHk&s=YVZSAP9y2Ho1ZKt_b01ikuHNy8XJT7P68Q3ylL0wdVY&e=> http://learningthewonders.com Chuck On 2017-10-05, 12:25 PM, "Webobjects-dev on behalf of André Rothe" <webobjects-dev-bounces+chill=gevityinc....@lists.apple.com on behalf of andre.ro...@phosco.info> wrote: Am 2017-10-05 20:10, schrieb Theodore Petrosky: You are working too hard!!!!! :-) you need to look at all the examples. what you are asking for is so simple (when you know how). LOL, exact. When you know how and where... The problem is, that a lot of WebObjects links on the internet are dead. Have you used EOModeler to build your model? Yes, I have. I recommend you look at these videos: 50% of these videos I have already watched (and downloaded). A lot things you don't understand at the first time you will watch the video, because the WO community has its own "language", so it is hard to follow the concepts. Nevertheless, I have downloaded the examples for the WebObjects Developer's Guide. This book is not bad, but it doesn't summarize the workflows. So I have to read all the pages to find a hint for a specific problem. That is also a problem to find something, if you cannot name the problem with the correct "WO Community term". My question refers to WOTable. In the meantime I have decompiled WORepetition and find out, that you have to set components into the WOTable tags, one component for every column of the database table, which I need. The output of WOTable base on the "list" attribute, which needs an NSArray or List and the "item" attribute, which is of the type of the underlying database table. As I sent my question, I thought, that WOTable creates output for all attributes of the "item" automatically, so I tried to reduce the attributes of "item" before it will be visible to WOTable. But that was a fault. Sorry for my "simple" questions, but this is a learning process. And there are almost 20 years between my knowlegde of WebObjects and the knowledge of the other readers here. Best regards Andre _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/chill%40gevityinc.com This email sent to ch...@gevityinc.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com<mailto:Webobjects-dev@lists.apple.com> <mailto:Webobjects-dev@lists.apple.com>) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/mailinglists%40kataputt.com<https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.apple.com_mailman_options_webobjects-2Ddev_mailinglists-2540kataputt.com&d=DwMFaQ&c=BNNF-YNv0CLLslhP2Bcx5Q&r=R0ZqsewJs3eSJk7vLCqZv0r5kJlLXQLnGTeg9t8MlqA&m=dLIjBz764eJDvZ58wjM2hkBUeFqpRryWvlq9mCHWfHk&s=72m5mDTO3o7ti2ZB2kS4RAFbo9a1wC4RPzZMQdte4DA&e=> This email sent to mailingli...@kataputt.com<mailto:mailingli...@kataputt.com> _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com<mailto:Webobjects-dev@lists.apple.com>) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/andre.rothe%40zks.uni-leipzig.de<https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.apple.com_mailman_options_webobjects-2Ddev_andre.rothe-2540zks.uni-2Dleipzig.de&d=DwMFaQ&c=BNNF-YNv0CLLslhP2Bcx5Q&r=R0ZqsewJs3eSJk7vLCqZv0r5kJlLXQLnGTeg9t8MlqA&m=dLIjBz764eJDvZ58wjM2hkBUeFqpRryWvlq9mCHWfHk&s=ZfMY5hUh7nw4T9WXe07yC765o25ZJSU-N2hBwprAqs8&e=> This email sent to andre.ro...@zks.uni-leipzig.de<mailto:andre.ro...@zks.uni-leipzig.de> -- UNIVERSITÄT LEIPZIG Medizinische Fakultät Zentrum für Klinische Studien Leipzig – KKS André Rothe CIO Härtelstr. 16-18, 04107 Leipzig Tel: 0341/ 97 16118 Fax: 0341/ 97 16189 WWW: http://www.zks.uni-leipzig.de<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.zks.uni-2Dleipzig.de&d=DwMFaQ&c=BNNF-YNv0CLLslhP2Bcx5Q&r=R0ZqsewJs3eSJk7vLCqZv0r5kJlLXQLnGTeg9t8MlqA&m=dLIjBz764eJDvZ58wjM2hkBUeFqpRryWvlq9mCHWfHk&s=9APZ1nibdDW63k3VSC73yiYO9UJO_ZXbElm-gNno1p4&e=> _______________________________________________ Do not post admin requests to the list. 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