However, if you try to store an updated value of your row, the datastore will convert your date to “310008e”, which cannot be parsed into a date.

There are several options to solve this issue. One would be to write a converter for the extjs model, another one is to write a serializer class which implements JsonSerializer<T> and annotate the datefield with it.

I found this solution here: http://loianegroner.com/2010/09/how-to-serialize-java-util-date-with-jackson-json-processor-spring-3-0/
There are some other options as well, please have a look in the comments of the linked blog post.

Finally i found this blog post: http://www.bitblokes.de/2012/04/losung-samsung-galaxy-s2-verbindet-sich-nicht-als-massenspeicher/
There it is said you have to enter the following number: *#7284# and then change from MODEM to PDA or maybe from PDA to MODEM and back.

That’s it, it does work again now. Seems to be a bug within the firmware. A pity i have not found it earlier and had to buy a new usb port w/o really having the need to.

i recently tried the above combination for a prototype and all of a sudden the following error appeared:

Source code

Schwerwiegend: 1.5.0/docs/api/java/lang/Error.html">Error configuring application listener of class org.springframework.web.context.ContextLoaderListener
java.lang.1.5.0/docs/api/java/lang/ClassNotFoundException.html">ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
	at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:532)
	at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:514)
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:133)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4727)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.1.5.0/docs/api/java/util/concurrent/FutureTask.html">FutureTask$Sync.innerRun(Unknown 1.5.0/docs/api/javax/xml/transform/Source.html">Source)
	at java.util.concurrent.1.5.0/docs/api/java/util/concurrent/FutureTask.html">FutureTask.run(Unknown 1.5.0/docs/api/javax/xml/transform/Source.html">Source)
	at java.util.concurrent.1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html">ThreadPoolExecutor.runWorker(Unknown 1.5.0/docs/api/javax/xml/transform/Source.html">Source)
	at java.util.concurrent.1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html">ThreadPoolExecutor$Worker.run(Unknown 1.5.0/docs/api/javax/xml/transform/Source.html">Source)
	at java.lang.1.5.0/docs/api/java/lang/Thread.html">Thread.run(Unknown 1.5.0/docs/api/javax/xml/transform/Source.html">Source)

It took me some time to figure out what happened, but somehow my project settings changed.
To fix this error go to projects properties  -> deployment assembly and add the maven dependencies there to be mapped to WEB-INF/lib.

That’s it, quick fix for a weired thing like change of the settings -.-

First, create a cx.properties in the conf folder of your project:

Source code

orm.connection.driver=com.mysql.Driver
orm.connection.url=jdbc:mysql://localhost/database
orm.connection.username=un
orm.connection.password=pw

Also add the dependency to your Build.scala file:

Source code

val appDependencies = Seq(
  "ru.circumflex" % "circumflex-orm" % "2.1"
)

Then create the class and it’s object:

Source code

class Task extends Record[Long, Task] with IdentityGenerator[Long, Task] {
  def this(name: String, description: String) = {
    this()
    this.name := name
    this.description := description
  }
 
  val id = "id".BIGINT.NOT_NULL.AUTO_INCREMENT
  val name = "name".VARCHAR(255).NOT_NULL
  val description = "description".TEXT.NOT_NULL
 
  def PRIMARY_KEY = id
  def relation = Task
}
 
object Task extends Task with Table[Long, Task] {
  def apply(name: String, description: String) = new Task(name, description)
  def unapply(t : Task) = Option(t.name(), t.description())
}

For more info about the fields and the usage of circumflex, look at the docs at their homepage please.

Finally you can retrieve with get for instance, it works without any additions.

Source code

val task = Task.get(1).get
println("name" + task.name())

But to save and insert you have to promote a context:

Source code

val task = new Task("foo","bar")
  Context.executeInNew {ctx =>
    println(task.save())
}

According to a gentle guy from circumflex this should belong into a filter, which must be put somewhere in the lifecycle usage of your app.
Please have a look at the google group discussion for more information about that:
https://groups.google.com/forum/?fromgroups#!topic/circumflex-scala/ma2uCVgPx1Q
But thats a topic for another day.

Easy, isn’t it? In the end i still could use anorm, or something similar besides it, if i need some complex sql’s to get done, but, as far as i can tell, circumflex should suffice for most of them.

Update:
Well, transaction management was no topic for another day. It turned out that without the Context from circumflex cache management did not work.

It is possible to save and retrieve, but, retrieval happens from the cache, and without the transaction-management the cache does not get updatet.

So, what you have to do is write your own action class like this:

Source code

import play.api.mvc.Action
import play.api.mvc.Request
import play.api.mvc.Result
import ru.circumflex.core.Context
 
case class ScircumflexOrmActionWrapper[A](action: Action[A]) extends Action[A] {
 
  def apply(request: Request[A]): Result = {
    Context.executeInNew { ctx =>
      action(request)
    }
  }
 
  lazy val parser = action.parser
}

And then call it like that:

Source code

def index = ScircumflexOrmActionWrapper { Action {
 
	val taskDbObj = Task AS "taskDb"
	val tasks = SELECT(taskDbObj.*).FROM(taskDbObj).ORDER_BY(taskDbObj.createdAt DESC).list
 
	Ok(html.task.index(tasks))
  }}

Now you should have a working solution.

Let’s say we have these two classes:

Source code

case class Task(name: String, description: String)
case class Tasks(tasks: List[Task])

Then we can make a Form val like this:

Source code

val taskForm: Form[Tasks] = Form(
      mapping(
          "tasks" -> list(mapping(
              "name" -> text,
              "description" -> text
          )(Task.apply)(Task.unapply))
      )(Tasks.apply)(Tasks.unapply)
  )

The html would look like this:

Source code

<tr>
  <td><input name="tasks[0].name" type="text" ></td>
  <td><textarea name="tasks[0].description" ></textarea>
  </td>
</tr>
<tr>
  <td><input name="tasks[1].name" type="text" ></td>
  <td><textarea name="tasks[1].description"></textarea>
  </td>
</tr>

And the retrieval as stated in the docs:

Source code

val tasks = taskForm.bindFromRequest.get

I admit that my table is not a normal form, instead i use jquerys .serializeArray() on the table to submit the data via $.ajax(), but that’s a different story.

See also this question at stackoverflow from me:
http://stackoverflow.com/questions/10218814/bind-multiple-objects-in-play-framework-2-0-from-a-form/10223431#10223431

It will produce a much better output regarding what is wrong, in my case it showed me that i forgot to set a needed variable in my class before i tried to save it.

A nice guy in the mailing list pinpointed me to this one (http://grails.1312388.n4.nabble.com/Error-executing-bootstraps-null-with-springsecurity-plugin-td4554560.html).

Source code

@defining(User.getLoggedinUser()) {user =>
  <h1>hello @user.getName(), @user.getPrename()</h1>
}

So basically the variable user references to the result of User.getLoggedinUser(), which is an object in this case and can only be used in the defined scope of the {}.

1. calling a template from a template with a white space (@navigation_top ()) between the template name and it’s paranthesis results in a message like: BaseScalaTemplate(play.api.templates.HtmlFormat$@3424b1d9) ()
   just showing the plain class output, to circumvent this you have to leave out the white space: @navigation_top()
2. templates from the views package can be referenced without the package name in the template like above: @navigation_top() calls the navigation_top template and includes it.
   But if you add a subpackage and a template within you have to call it with the full package name.
   So a template navigation_top in views.navigation has to be included with:
   @views.html.navigation.navigation_top()

I worked around it by using the 2.0.1 of bootstrap, the nice guy at the irc told me that the git version of play has it fixed already.

Btw. there is a nice and short tutorial to get bootstrap running with play:
https://plus.google.com/u/0/108788785914419775677/posts/QgyUF9cXPkv