Beispiel #1
0
 @SuppressWarnings("unchecked")
 public Form(String name, Class<T> clazz, MessagesApi messagesApi, Formatters formatters) {
   this(
       name,
       clazz,
       new HashMap<>(),
       new HashMap<>(),
       Optional.empty(),
       null,
       messagesApi,
       formatters);
 }
Beispiel #2
0
 /**
  * Populates this form with an existing value, used for edit forms.
  *
  * @param value existing value of type <code>T</code> used to fill this form
  * @return a copy of this form filled with the new data
  */
 @SuppressWarnings("unchecked")
 public Form<T> fill(T value) {
   if (value == null) {
     throw new RuntimeException("Cannot fill a form with a null value");
   }
   return new Form(
       rootName,
       backedType,
       new HashMap<>(),
       new HashMap<String, ValidationError>(),
       Optional.ofNullable(value),
       groups,
       messagesApi,
       formatters);
 }
Beispiel #3
0
  /**
   * Retrieve a field.
   *
   * @param key field name
   * @return the field (even if the field does not exist you get a field)
   */
  public Field field(String key) {

    // Value
    String fieldValue = null;
    if (data.containsKey(key)) {
      fieldValue = data.get(key);
    } else {
      if (value.isPresent()) {
        BeanWrapper beanWrapper = new BeanWrapperImpl(value.get());
        beanWrapper.setAutoGrowNestedPaths(true);
        String objectKey = key;
        if (rootName != null && key.startsWith(rootName + ".")) {
          objectKey = key.substring(rootName.length() + 1);
        }
        if (beanWrapper.isReadableProperty(objectKey)) {
          Object oValue = beanWrapper.getPropertyValue(objectKey);
          if (oValue != null) {
            final String objectKeyFinal = objectKey;
            fieldValue =
                withRequestLocale(
                    () ->
                        formatters.print(
                            beanWrapper.getPropertyTypeDescriptor(objectKeyFinal), oValue));
          }
        }
      }
    }

    // Error
    List<ValidationError> fieldErrors = errors.get(key);
    if (fieldErrors == null) {
      fieldErrors = new ArrayList<>();
    }

    // Format
    Tuple<String, List<Object>> format = null;
    BeanWrapper beanWrapper = new BeanWrapperImpl(blankInstance());
    beanWrapper.setAutoGrowNestedPaths(true);
    try {
      for (Annotation a : beanWrapper.getPropertyTypeDescriptor(key).getAnnotations()) {
        Class<?> annotationType = a.annotationType();
        if (annotationType.isAnnotationPresent(play.data.Form.Display.class)) {
          play.data.Form.Display d = annotationType.getAnnotation(play.data.Form.Display.class);
          if (d.name().startsWith("format.")) {
            List<Object> attributes = new ArrayList<>();
            for (String attr : d.attributes()) {
              Object attrValue = null;
              try {
                attrValue = a.getClass().getDeclaredMethod(attr).invoke(a);
              } catch (Exception e) {
                // do nothing
              }
              attributes.add(attrValue);
            }
            format = Tuple(d.name(), attributes);
          }
        }
      }
    } catch (NullPointerException e) {
      // do nothing
    }

    // Constraints
    List<Tuple<String, List<Object>>> constraints = new ArrayList<>();
    Class<?> classType = backedType;
    String leafKey = key;
    if (rootName != null && leafKey.startsWith(rootName + ".")) {
      leafKey = leafKey.substring(rootName.length() + 1);
    }
    int p = leafKey.lastIndexOf('.');
    if (p > 0) {
      classType = beanWrapper.getPropertyType(leafKey.substring(0, p));
      leafKey = leafKey.substring(p + 1);
    }
    if (classType != null) {
      BeanDescriptor beanDescriptor =
          play.data.validation.Validation.getValidator().getConstraintsForClass(classType);
      if (beanDescriptor != null) {
        PropertyDescriptor property = beanDescriptor.getConstraintsForProperty(leafKey);
        if (property != null) {
          constraints = Constraints.displayableConstraint(property.getConstraintDescriptors());
        }
      }
    }

    return new Field(this, key, constraints, format, fieldErrors, fieldValue);
  }
Beispiel #4
0
 /**
  * Gets the concrete value if the submission was a success.
  *
  * @throws IllegalStateException if there are errors binding the form, including the errors as
  *     JSON in the message
  */
 public T get() {
   if (!errors.isEmpty()) {
     throw new IllegalStateException("Error(s) binding form: " + errorsAsJson());
   }
   return value.get();
 }
Beispiel #5
0
  /**
   * Binds data to this form - that is, handles form submission.
   *
   * @param data data to submit
   * @return a copy of this form filled with the new data
   */
  @SuppressWarnings("unchecked")
  public Form<T> bind(Map<String, String> data, String... allowedFields) {

    DataBinder dataBinder;
    Map<String, String> objectData = data;
    if (rootName == null) {
      dataBinder = new DataBinder(blankInstance());
    } else {
      dataBinder = new DataBinder(blankInstance(), rootName);
      objectData = new HashMap<>();
      for (String key : data.keySet()) {
        if (key.startsWith(rootName + ".")) {
          objectData.put(key.substring(rootName.length() + 1), data.get(key));
        }
      }
    }
    if (allowedFields.length > 0) {
      dataBinder.setAllowedFields(allowedFields);
    }
    SpringValidatorAdapter validator =
        new SpringValidatorAdapter(play.data.validation.Validation.getValidator());
    dataBinder.setValidator(validator);
    dataBinder.setConversionService(formatters.conversion);
    dataBinder.setAutoGrowNestedPaths(true);
    final Map<String, String> objectDataFinal = objectData;
    withRequestLocale(
        () -> {
          dataBinder.bind(new MutablePropertyValues(objectDataFinal));
          return null;
        });
    Set<ConstraintViolation<Object>> validationErrors;
    if (groups != null) {
      validationErrors = validator.validate(dataBinder.getTarget(), groups);
    } else {
      validationErrors = validator.validate(dataBinder.getTarget());
    }

    BindingResult result = dataBinder.getBindingResult();

    for (ConstraintViolation<Object> violation : validationErrors) {
      String field = violation.getPropertyPath().toString();
      FieldError fieldError = result.getFieldError(field);
      if (fieldError == null || !fieldError.isBindingFailure()) {
        try {
          result.rejectValue(
              field,
              violation.getConstraintDescriptor().getAnnotation().annotationType().getSimpleName(),
              getArgumentsForConstraint(
                  result.getObjectName(), field, violation.getConstraintDescriptor()),
              getMessageForConstraintViolation(violation));
        } catch (NotReadablePropertyException ex) {
          throw new IllegalStateException(
              "JSR-303 validated property '"
                  + field
                  + "' does not have a corresponding accessor for data binding - "
                  + "check your DataBinder's configuration (bean property versus direct field access)",
              ex);
        }
      }
    }

    if (result.hasErrors() || result.getGlobalErrorCount() > 0) {
      Map<String, List<ValidationError>> errors = new HashMap<>();
      for (FieldError error : result.getFieldErrors()) {
        String key = error.getObjectName() + "." + error.getField();
        if (key.startsWith("target.") && rootName == null) {
          key = key.substring(7);
        }
        if (!errors.containsKey(key)) {
          errors.put(key, new ArrayList<>());
        }

        ValidationError validationError;
        if (error.isBindingFailure()) {
          ImmutableList.Builder<String> builder = ImmutableList.builder();
          Optional<Messages> msgs =
              Optional.of(Http.Context.current.get()).map(c -> messagesApi.preferred(c.request()));
          for (String code : error.getCodes()) {
            code = code.replace("typeMismatch", "error.invalid");
            if (!msgs.isPresent() || msgs.get().isDefinedAt(code)) {
              builder.add(code);
            }
          }
          validationError =
              new ValidationError(
                  key, builder.build().reverse(), convertErrorArguments(error.getArguments()));
        } else {
          validationError =
              new ValidationError(
                  key, error.getDefaultMessage(), convertErrorArguments(error.getArguments()));
        }
        errors.get(key).add(validationError);
      }

      List<ValidationError> globalErrors = new ArrayList<>();

      for (ObjectError error : result.getGlobalErrors()) {
        globalErrors.add(
            new ValidationError(
                "", error.getDefaultMessage(), convertErrorArguments(error.getArguments())));
      }

      if (!globalErrors.isEmpty()) {
        errors.put("", globalErrors);
      }

      return new Form(
          rootName, backedType, data, errors, Optional.empty(), groups, messagesApi, formatters);
    } else {
      Object globalError = null;
      if (result.getTarget() != null) {
        try {
          java.lang.reflect.Method v = result.getTarget().getClass().getMethod("validate");
          globalError = v.invoke(result.getTarget());
        } catch (NoSuchMethodException e) {
          // do nothing
        } catch (Throwable e) {
          throw new RuntimeException(e);
        }
      }
      if (globalError != null) {
        Map<String, List<ValidationError>> errors = new HashMap<>();
        if (globalError instanceof String) {
          errors.put("", new ArrayList<>());
          errors.get("").add(new ValidationError("", (String) globalError, new ArrayList()));
        } else if (globalError instanceof List) {
          for (ValidationError error : (List<ValidationError>) globalError) {
            List<ValidationError> errorsForKey = errors.get(error.key());
            if (errorsForKey == null) {
              errors.put(error.key(), errorsForKey = new ArrayList<>());
            }
            errorsForKey.add(error);
          }
        } else if (globalError instanceof Map) {
          errors = (Map<String, List<ValidationError>>) globalError;
        }
        return new Form(
            rootName, backedType, data, errors, Optional.empty(), groups, messagesApi, formatters);
      }
      return new Form(
          rootName,
          backedType,
          new HashMap<>(data),
          new HashMap<>(errors),
          Optional.ofNullable((T) result.getTarget()),
          groups,
          messagesApi,
          formatters);
    }
  }