playframework-2.0

问题 I am having trouble is this marriage of 2 seemingly powerful frameworks. It seems most things that can be done by 1 can be done by 2.How to best utilize the two? Are there any patterns of thinking? Take a basic example of a CRUD application -- I can write a route mysite/listnames which maps to a controller in play! and this renders a template with the code -- @(names:List[String]) @main("Welcome") { @for( name <- names ){ <p> Hello, @name </p> } Note that main is a typical bootstrapping

问题 I want to include some LaTEX code in play framework 2.0 template, namely: \usepackage[T1]{fontenc} \usepackage[latin9]{inputenc} \usepackage{babel} Of course play complains with error in unicode escape error message because of \us... parts. How should I escape those pieces of text, so play compiles the template and I get verbatim LaTeX code in result? Tried my luck with @Html(), but it doesn't work either... 回答1: Create an method ie in Application.java controller: public static String latex

问题 I'd like to translate the default constraints and error messages for markup generated by the views.html.helpers._ inputs. I couldn't find it in the documentation, and have already started browsing the code, but if anyone is faster than me please answer and be awarded. Here is the sample template code: @inputText(regForm("Login"), 'id-> "username", 'placeholder -> "Login", 'required -> "yes", 'autofocus -> "yes") And here is the generated HTML: <div id="username_field" class="error clearfix">

问题 I am developing an application using Play framework and scala. I am using anorm for data-access layer. And I've got a problem I could not solve. Brief: I want to be able to have methods in data-access objects (dao) to work inside transactions as well as being called alone. Details: I have data-access layer consist of class with methods that only executes particular SQL over database. Traditionally they looks like: def list() = DB.withConnection { implicit cn => ... } Now I want to have some

问题 I want to implement a setUserIfPresent () method that puts a user object into the context like Http.Context.current().args.put("user", user); This method should be applied before every controller method so that views have access implicit access to the user. With Play1 I create a BaseController that invokes this method before all requests (@Before filter) and extended all other controllers from this one. How to achieve something like this in play2 using Java API? Seems like there is something

问题 I just started working with play, and I modified the way I'm doing a SQL read and I'm now getting the following error: [Exception: DB plugin is not registered.] The code I have for this class is: package models import play.api.db._ import play.api.Play.current import anorm._ case class Housing(id: Long, rent: String, address: String, street0: String, street1: String, neighbourhood: String) object Housing { def all(): List[Housing] = DB.withConnection { implicit c => SQL("select * from housing

问题 I have divided my application into different projects in PLay 2. But I just realised I do not know how to run multiple play application in the same server. Anyone knows how to do it? Let us suppose it is not possible,Therefore, I will just deploy multiple play application in the same root project (The microservice will act as a plugin). Do you think this will defeat microservice architecture?. I will make each module act independently. 回答1: By server, I'm guessing you mean Tomcat / Jetty /

问题 I've been having some problems testing controllers that use Play's CSRF protection. To demonstrate this, I've created a very simple Play application that minimally exhibits the problem. https://github.com/adamnfish/csrftest The full details are on the README of that repository, but to summarise here: Consider a controller that is designed to handle a form submission. It has a GET method that uses CSRFAddToken and a POST method that uses CSRFCheck. The former adds a CSRF Token to the request

问题 I would like to have a different message for a Constraints validator but i am wandering how to do.... example @Constraints.Required @Constraints.Pattern("\\d{1,6}") public String thisIsAnInt; I would like something @Constraints.Required @Constraints.Pattern(message="ThisismyspecificMessage",value=\\d{1,6}") public String thisIsAnInt; For showing it properly using the bootstrap in a form. It is possible? thanks a lot 回答1: As you wrote, you can use @Constraints.Required(message = "This is field

问题 I would like to invent a system to dynamically discover subprojects and aggregate them into my project automatically. Or at least configure this somehow. To do this, I'm planning to have either a "modules" folder or an optional configuration file containing paths to the modules. In any case I'd need to loop through subfolders (or loop through a list of paths from a configuration file), and aggregate each subproject . I don't know how to do that. Currently I'm building in the Play framework