Fix #48

src/main/kotlin/pl/edu/uj/ii/ksi/mordor/controllers/admin/UsersController.kt

@@ -1,12 +1,15 @@
 package pl.edu.uj.ii.ksi.mordor.controllers.admin
 
 import javax.validation.Valid
+import org.springframework.beans.propertyeditors.StringTrimmerEditor
 import org.springframework.data.domain.PageRequest
 import org.springframework.http.HttpStatus
 import org.springframework.security.access.annotation.Secured
 import org.springframework.stereotype.Controller
 import org.springframework.validation.BindingResult
+import org.springframework.web.bind.WebDataBinder
 import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.InitBinder
 import org.springframework.web.bind.annotation.ModelAttribute
 import org.springframework.web.bind.annotation.PathVariable
 import org.springframework.web.bind.annotation.PostMapping
@@ -27,6 +30,11 @@ class UsersController(private val userRepository: UserRepository, private val us
         private const val usersPerPage = 100
     }
 
+    @InitBinder
+    fun initBinder(binder: WebDataBinder) {
+        binder.registerCustomEditor(String::class.java, StringTrimmerEditor(true))
+    }
+
     @Secured(Permission.ACCESS_ADMIN_PANEL_STR)
     @GetMapping("/admin/users/")
     fun userList(): View {