我附上了我的代码
应用程序(控制器)
package controllers
import play.api._
import play.api.mvc._
import play.api.data._
import play.api.data.Forms._
import models.Task
import java.io._
object Application extends Controller {
val taskForm = Form(
tuple(
"id" -> number,
"label" -> nonEmptyText(minLength = 4),
"add" -> nonEmptyText
)
)
def index = Action {
Redirect(routes.Application.tasks)
}
def tasks = Action {
Ok(views.html.index(Task.all(),taskForm))
}
def showTask= Action {
Ok(views.html.test(Task.all(), taskForm))
}
def newTask = Action { implicit request =>
taskForm.bindFromRequest.fold(
errors => BadRequest(views.html.index(Task.all(), errors)),
{
case(id,label,add) => {
Task.create(id,label,add)
Redirect(routes.Application.showTask)
}
}
)
}
def deleteTask(id: Int) = Action {
Task.delete(id)
Redirect(routes.Application.showTask)
}
}
任务(模型)
package models
import anorm._
import anorm.SqlParser._
import play.api.db._
import play.api.Play.current
case class Task(id: Int, label: String,add:String)
object Task {
val task = {
get[Int]("id") ~
get[String]("label") ~
get[String]("add") map {
case id~label~add => Task(id, label,add)
}
}
def all(): List[Task] = DB.withConnection { implicit c =>
SQL("select * from task").as(task *)
}
def create(id:Int , label: String, add:String) {
DB.withConnection { implicit c =>
SQL("insert into task (id,label,add) values ({id},{label},{add})").on(
'id -> id ,
'label -> label ,
'add -> add
).executeUpdate()
}
}
def delete(id:Int) {
DB.withConnection { implicit c =>
SQL("delete from task where id = {id}").on(
'id -> id
).executeUpdate()
}
}
}
我不知道在哪里声明编写器函数。请帮助我的语法,我需要将表单元素写入文本文件.. 提前谢谢