Use @UniqueConstraint: @Table( uniqueConstraints= @UniqueConstraint(columnNames={“author_id”, “number”}) ) @Entity class Book extends Model { @ManyToOne @JoinColumn(name = “author_id”) User author; int number; }
Look at this page from Play’s documentation. It says: Other than for the h2 in-memory database, useful mostly in development mode, Play 2.0 does not provide any database drivers. Consequently, to deploy in production you will have to add your database driver as an application dependency. For example, if you use MySQL5, you need to … Read more
An interesting question. This is just my view on the topic, so take everything with a grain of salt. I have occasionally deployed and managed applications using both servlet containers and embedded servers. I’m sure there are still many good reasons for using servlet containers but I will try to just focus on why they … Read more
As per request, a simple REST-like approach. It works almost the same way Codemwncis’ solution works but uses the Accept header for content negotiation. First the routes file: GET /user/{id} Application.user POST /user/ Application.createUser PUT /user/{id} Application.updateUser DELETE /user/{id} Application.deleteUser You don’t specify any content type here. Doing so is IMHO only necessary when you … Read more
Remove the [] from the name ([myApp]) of module angular.module(‘myApp’, []) And add ng-app=”myApp” to the html and it should work.
Play 2.x In Play 2, these are implemented with an sbt plugin, so the following instructions are really just sbt tasks. You can use any sbt runner (e In Play 2, these are implemented with an sbt plugin, so the following are really just sbt tasks. You can use any sbt runner (e.g. sbt, play, … Read more
I’ll explain the main use cases of implicits below, but for more detail see the relevant chapter of Programming in Scala. Implicit parameters The final parameter list on a method can be marked implicit, which means the values will be taken from the context in which they are called. If there is no implicit value … Read more