[2.0] [Scala] Form with dynamic fields

[Mike V. Girkin]

I have some difficulties creating dynamic forms in my scala playframework application.

I am quite new to Play!, and got stuck with the following task:

Fields of my form is specified in the database somehow. I need to render the form and (this is the most important) recieve the data from the user.

Is there any way to use the Forms scala api for this task?

At the moment I have solved the issue "by hand" - getting values directly from the request, but don't like my solution.

[Mike V. Girkin]

Good day!

  Yes, I have. I have no problems with creating "static" forms, when the content of the form is known at the moment of writing code.

  

  The problem is, that my form is completely dynamic. Number and type of fields is defined in the database, and could be different.

  First, I don't understand how to write the dynamic mapping for the fields, and also I could not understand how to supply apply and unapply function, if the number of parameters unkown.

  

среда, 7 ноября 2012 г., 0:31:48 UTC+4 пользователь Artem Kozlov написал:

Have you read this: http://www.playframework.org/documentation/2.0.4/ScalaForms ? Especially part about "Constructing complex objects", "Handling binding failure" and "Nested values".

And check this example projects:
https://github.com/playframework/Play20/tree/master/samples/scala/forms

https://github.com/playframework/Play20/tree/master/samples/scala/computer-database

Artem.

[Mikhail V. Girkin]

Hi all!

  Investingated the sources of Play framework, and found out, that it is impossible to achieve the goal I set.

  Solved the problem by leaving out Forms api, and used mappings and contstraints from the Play framework.

2012/11/7 Mike V. Girkin <mikeg...@gmail.com>

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Mike V. Girkin

[Byron Weber Becker]

I have the same issue.  Can you elaborate a bit more on the workaround you used?

Byron