Cutelyst  2.5.0
validatornumeric.cpp
1 /*
2  * Copyright (C) 2017-2018 Matthias Fehring <kontakt@buschmann23.de>
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "validatornumeric_p.h"
20 
21 using namespace Cutelyst;
22 
23 ValidatorNumeric::ValidatorNumeric(const QString &field, const Cutelyst::ValidatorMessages &messages, const QString &defValKey) :
24  ValidatorRule(*new ValidatorNumericPrivate(field, messages, defValKey))
25 {
26 }
27 
29 {
30 }
31 
33 {
34  ValidatorReturnType result;
35 
36  const QString v = value(params);
37 
38  if (!v.isEmpty()) {
39  bool ok = false;
40  const double _v = v.toDouble(&ok);
41  if (Q_LIKELY(ok)) {
42  result.value.setValue<double>(_v);
43  } else {
44  qCDebug(C_VALIDATOR, "ValidatorNumeric: Validation failed for field %s at %s::%s: can not convert input value into a numeric value.", qPrintable(field()), qPrintable(c->controllerName()), qPrintable(c->actionName()));
45  result.errorMessage = validationError(c);
46  }
47  } else {
48  defaultValue(c, &result, "ValidatorNumeric");
49  }
50 
51  return result;
52 }
53 
54 QString ValidatorNumeric::genericValidationError(Context *c, const QVariant &errorData) const
55 {
56  QString error;
57  Q_UNUSED(errorData)
58  const QString _label = label(c);
59  if (_label.isEmpty()) {
60  error = c->translate("Cutelyst::ValidatorNumeric", "Must be numeric, like 1, -2.5 or 3.454e3.");
61  } else {
62  error = c->translate("Cutelyst::ValidatorNumeric", "You have to enter a numeric value into the “%1” field, like 1, -2.5 or 3.454e3").arg(_label);
63  }
64  return error;
65 }
QMap< QString, QString > ParamsMultiMap
~ValidatorNumeric()
Deconstructs the numeric 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.
ValidatorNumeric(const QString &field, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
Constructs a new numeric validator.
The Cutelyst Context.
Definition: context.h:50
QString genericValidationError(Context *c, const QVariant &errorData=QVariant()) const override
Returns a generic error message if validation failed.
QString translate(const char *context, const char *sourceText, const char *disambiguation=nullptr, int n=-1) const
Definition: context.cpp:414
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.
QString value(const ParamsMultiMap &params) const
Returns the value of the field from the input params.
ValidatorReturnType validate(Context *c, const ParamsMultiMap &params) const override
Performs the validation and returns the result.
QString field() const
Returns the name of the field to validate.
Contains the result of a single input parameter validation.
Definition: validatorrule.h:62
void defaultValue(Context *c, ValidatorReturnType *result, const char *validatorName) const
I a defValKey has been set in the constructor, this will try to get the default value from the stash ...