Wie ohne Helfer in html scala Vorlage

Question

Was ich java play2 Form validieren müssen, ist Feldfehler zu erhalten, wenn i vaccant Feld in meiner Form haben, wenn Telefonnummer nicht gültig ist, wenn die Option Standardwert ist und wenn der Betrag weniger als 100 beträgt. Ihre Hilfe wird geschätzt.

Mein home.scala.html:

@(customerForm: Form[Users]) 

             @main("sending..") { 

            <form action="@routes.Application.send()" method="post"> 


              <div class="form-group row "> 
               <label class="col-sm-2 form-control-label">Phone Number</label> 
               <div class="col-sm-10"> 
                <input 
                name="phoneNumber" 
                id="lastName" 

                class="form-control" 
                type="text" 
                placeholder="Phone Number"> 
               </div> 
              </div> 


               <div class="form-group row "> 
                <label class="col-sm-2 form-control-label">First Name</label> 
                <div class="col-sm-10"> 
                 <input 
                 name="firstName" 
                 id="firstName" 

                 class="form-control" 
                 type="text" 
                 placeholder="First Name"> 
                </div> 
                </div> 



               <div class="form-group row"> 

                <label class="col-sm-2 form-control-label">User</label> 
                <div class="col-sm-10"> 

                 <select class="form-control" 
                 name="client" 
                 id="client" 
                 value="client" 
                 > 
                  <option value="select">select ..</option> 
                  <option value="admin">admin</option> 
                  <option value="supervisor">supervisor</option> 
                  <option value="enduser">enduser</option> 
                 </select> 

                </div> 
               </div> 


               <div class="form-group row "> 
                <label class="col-sm-2 form-control-label">Amount</label> 
                <div class="col-sm-10"> 
                 <input 
                 name="amount" 
                 id="" 
                 value="@customerForm("amount").value" 
                 class="form-control" 
                 type="number" 
                 placeholder="Rwfr"> 
                </div> 
               </div> 
              </form> 
              } 

I Modelle wollen so sein herbenation:

@Entity 
@Table(name = "Users") 
public class Users extends Model { 

@Id 
public Long id; 

@Required 
@Constraints.Pattern(value = "[0-9.+]+", message = "A valid phone number is required") 
public String phoneNumber; 

@Min(5) 
@Required 
public String firstName; 


@Required 
public String client ; 

@Min(100) 
@Required 
public int amount ; 

} 

Meine ctroller Methode ist die fo llowing:

public static Result send() { 


    Form<Users> formData_one = Form.form(Users.class).bindFromRequest(); 

    if (formData_one.hasErrors()) { 
     flash("error", " Please fill vaccant field ..."); 

      } 
    else{ 

     } 
     } 

Answer 1

Verwendung so etwas wie dieses

@if(userForm.hasErrors) { 
     <div class="alert alert-danger" role="alert"> 
     @for(error <- userForm.errors()) { 
      <p>Error: @error._2.stream().findFirst().get().message()</p> 
     } 
     </div> 
    }