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#dartling   #id  

Each entity has a globally unique id, oid, generated by dartling. An entity has an optional, one attribute id, code, whose values are provided by users. An entity may have a composite id, id, defined by a model designer.

    abstract class EntityApi<E extends EntityApi<E>>
    implements Comparable {
      ...
      Oid get oid;
      IdApi get id;
      String code;
      ...
    }
 
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#education   #sql  

Learn SQL by examples in a browser.
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#dartling  

There is a new 2.0.1 version of dartling, a model-driven data framework for design, code generation and use of Dart models. 

https://pub.dartlang.org/packages/dartling
https://github.com/dzenanr/dartling

http://goo.gl/YkIHLK
http://learningdart.org/

Although there are 15 forks of dartling and 29 stars for dartling at GitHub, I have never received a single question about the software. I suppose, nobody has been using it, although the documentation for dartling has been quite extensive. It seems that Dart developers are neither aware of dartling (although there is a chapter on dartling in the Learning Dart book), or they do not find it useful. After working on this software for several years, I would like to get some comments from the Dart community. Based on those comments, I would either abandon the project or improve it, hopefully with the help of some other Dart developers. I am at the point, where a new blood is needed to advance the project.
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Doc CSS3
La démo du week-end #96
by +Guillaume Girou 
#dartlang

Tu ne connais pas à quoi sert une propriété CSS3 ? Cette démo est faite pour toi !

+Kasper Peulen a crée une rapide démonstration qui utilise l’API de docs.webplatform.org. Elle permet de rechercher la documentation associée à une propriété CSS.

C’est surtout l’occasion de faire une pierre deux coups, puisqu’on peut apprécier les dernières nouveautés de DartPad, à savoir la possibilité de sauvegarder et partager son exemple, et aussi de voir la documentation d’une classe lorsque l’on place le curseur dessus.

N’oubliez pas, mardi et mercredi prochain, c’est le Dart Dev Summit, une session sera consacrée à DartPad !

→ La démo et le code :
https://dartpad.dartlang.org/f1eeb2b1f6b4cf7703e0

Bonne découverte et bonne fin de week-end !
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#dartling   #offline   #integration  

For a collection of entities, dartling provides a JSON interface as well as data integration for offline needs:

abstract class EntitiesApi<E extends EntityApi<E>> implements Iterable<E> {
  ...
  String toJson();
  void fromJson(String entitiesJson);
  
  void integrate(EntitiesApi<E> fromEntities);
  void integrateAdd(EntitiesApi<E> addEntities);
  void integrateSet(EntitiesApi<E> setEntities);
  void integrateRemove(EntitiesApi<E> removeEntities);
}

with action timestamps:

abstract class EntityApi<E extends EntityApi<E>> implements Comparable {
  ...
  DateTime whenAdded;
  DateTime whenSet;
  DateTime whenRemoved;
  ...
}
dartling is a model-driven data framework for design, code generation and use of Dart models.
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#framework   #datamodel  

"Unlike almost every other Javascript framework we've so far seen, FOAM makes the data model the primary entity in the system, which is a good idea. In the typical UI-driven development of web applications, the data model often gets modified without much thought and causes cascading complexity across the rest of the system. A lot of the convoluted UI code that I've written could've been kept simple by keeping the data model sane by finding and utilizing equivalences, making implied meaning explicit by extracting names, and normalizing/denormalizing the data appropriately. A data-structure driven development approach should help a lot here."

https://news.ycombinator.com/item?id=9445036
FOAM is a deeply MVC Javascript framework
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Sad lesson today. Turns out MongoDB is useless as a database (if you consider what a database is). 
In May of 2013, we showed that MongoDB 2.4.3 would lose acknowledged writes at all consistency levels. Every write concern less than MAJORITY loses data by design due to rollbacks–but even WriteConcern.MAJORITY lost acknowledged writes, because when the server encountered a network error, ...
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This eCourse/eBooks will help beginner web artists a lot in understanding CSS3 programming.
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