cutelyst  3.9.1
A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework.
validatorpresent.cpp
1 /*
2  * SPDX-FileCopyrightText: (C) 2017-2022 Matthias Fehring <mf@huessenbergnetz.de>
3  * SPDX-License-Identifier: BSD-3-Clause
4  */
5 
6 #include "validatorpresent_p.h"
7 
8 using namespace Cutelyst;
9 
11  const Cutelyst::ValidatorMessages &messages)
12  : ValidatorRule(*new ValidatorPresentPrivate(field, messages))
13 {
14 }
15 
17 {
18 }
19 
21 {
22  ValidatorReturnType result;
23 
24  if (!params.contains(field())) {
25  result.errorMessage = validationError(c);
26  qCDebug(C_VALIDATOR,
27  "ValidatorPresent: Validation failed for field %s at %s::%s: field was not found "
28  "in the input data",
29  qPrintable(field()),
30  qPrintable(c->controllerName()),
31  qPrintable(c->actionName()));
32  } else {
33  result.value.setValue<QString>(value(params));
34  }
35 
36  return result;
37 }
38 
40 {
41  QString error;
42  Q_UNUSED(errorData)
43  const QString _label = label(c);
44  if (_label.isEmpty()) {
45  error = c->translate("Cutelyst::ValidatorPresent", "Has to be present in input data.");
46  } else {
47  //: %1 will be replaced by the field label
48  error = c->translate("Cutelyst::ValidatorPresent",
49  "The “%1” field was not found in the input data.")
50  .arg(_label);
51  }
52  return error;
53 }
~ValidatorPresent() override
Deconstructs the present validator.
QString validationError(Context *c, const QVariant &errorData=QVariant()) const
Returns a descriptive error message if validation failed.
Stores custom error messages and the input field label.
The Cutelyst Context.
Definition: context.h:38
bool isEmpty() const const
QString translate(const char *context, const char *sourceText, const char *disambiguation=nullptr, int n=-1) const
Definition: context.cpp:490
ValidatorPresent(const QString &field, const ValidatorMessages &messages=ValidatorMessages())
Constructs a new present validator.
The Cutelyst namespace holds all public Cutelyst API.
Definition: Mainpage.dox:7
Base class for all validator rules.
QString label(Context *c) const
Returns the human readable field label used for generic error messages.
void setValue(const T &value)
QString value(const ParamsMultiMap &params) const
Returns the value of the field from the input params.
bool contains(const Key &key, const T &value) const const
ValidatorReturnType validate(Context *c, const ParamsMultiMap &params) const override
Performs the validation and returns the result.
QString arg(qlonglong a, int fieldWidth, int base, QChar fillChar) const const
QString field() const
Returns the name of the field to validate.
Contains the result of a single input parameter validation.
Definition: validatorrule.h:49
QString genericValidationError(Context *c, const QVariant &errorData=QVariant()) const override
Returns a generic error message if validation failed.