cutelyst 4.8.0
A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework.
Cutelyst::ValidatorSize Class Reference

The field under validation must have a size matching the given value. More...

#include <Cutelyst/Plugins/Utils/validatorsize.h>

Inheritance diagram for Cutelyst::ValidatorSize:

Public Member Functions

 ValidatorSize (const QString &field, QMetaType::Type type, const QVariant &size, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 ~ValidatorSize () override
Public Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (const QString &field, const ValidatorMessages &messages={}, const QString &defValKey={}, QByteArrayView validatorName=nullptr)
virtual ~ValidatorRule ()
 Deconstructs the ValidatorRule.

Protected Member Functions

QString genericParsingError (Context *c, const QVariant &errorData) const override
QString genericValidationDataError (Context *c, const QVariant &errorData) const override
QString genericValidationError (Context *c, const QVariant &errorData=QVariant()) const override
ValidatorReturnType validate (Context *c, const ParamsMultiMap &params) const override
Protected Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (ValidatorRulePrivate &dd)
QString debugString (Context *c) const
void defaultValue (Context *c, ValidatorReturnType *result) const
QString field () const noexcept
QString label (Context *c) const
QString parsingError (Context *c, const QVariant &errorData={}) const
bool trimBefore () const noexcept
QString validationDataError (Context *c, const QVariant &errorData={}) const
QString validationError (Context *c, const QVariant &errorData={}) const
QString value (const ParamsMultiMap &params) const

Detailed Description

Checks if the size of the value in the input field is the same as the given size.

This works for floating point, integer and QString types, where for numeric types it will check the value itself while for QString it will check the string length. Use size to define the comparison value and type to set the type to check against. size will internally converted into a comparative value (qlonglong for QMetaType::Int, qulonglong for QMetaType::UInt and int for QMetaType::QString. Allowed types for the type specifier are all numeric types and QMetaType::QString. Any other type will result in a validation data error.

If you set a string to the size value, this will neither be interpreted as a number nor as string length, but will be used to get the comparison number value from the stash.

Note
Conversion of numeric input values is performed in the 'C' locale.
Unless validation is started with NoTrimming, whitespaces will be removed from the beginning and the end of the input value before validation. If the field's value is empty or if the field is missing in the input data, the validation will succeed without performing the validation itself. Use one of the required validators to require the field to be present and not empty.
Return type
On success, ValidatorReturnType::value will contain a value of the type specified in the constructor.
See also
Validator for general usage of validators.
ValidatorMin, ValidatorSize, ValidatorBetween

Definition at line 49 of file validatorsize.h.

Constructor & Destructor Documentation

◆ ValidatorSize()

ValidatorSize::ValidatorSize ( const QString & field,
QMetaType::Type type,
const QVariant & size,
const ValidatorMessages & messages = ValidatorMessages(),
const QString & defValKey = QString() )

Constructs a new ValidatorSize object with the given parameters.

Parameters
fieldName of the input field to validate.
typeThe type to compare.
sizeThe size to compare. Will be converted into comparable value. If it is a QString, it will try to get the comparison value from the stash.
messagesCustom error message if validation fails.
defValKeyStash key containing a default value if input field is empty. This value will NOT be validated.

Definition at line 10 of file validatorsize.cpp.

References Cutelyst::ValidatorRule::ValidatorRule(), and Cutelyst::ValidatorRule::field().

Referenced by ~ValidatorSize(), genericParsingError(), genericValidationDataError(), genericValidationError(), and validate().

◆ ~ValidatorSize()

ValidatorSize::~ValidatorSize ( )
overridedefault

Member Function Documentation

◆ genericParsingError()

QString ValidatorSize::genericParsingError ( Context * c,
const QVariant & errorData ) const
overrideprotectedvirtual

Returns a generic error message for input value parsing errors.

Reimplemented from Cutelyst::ValidatorRule.

Definition at line 231 of file validatorsize.cpp.

References ValidatorSize(), QString::arg(), QMetaType::Double, QMetaType::Float, QString::isEmpty(), Cutelyst::ValidatorRule::label(), and Cutelyst::Context::qtTrId().

Referenced by ~ValidatorSize().

◆ genericValidationDataError()

QString ValidatorSize::genericValidationDataError ( Context * c,
const QVariant & errorData ) const
overrideprotectedvirtual

◆ genericValidationError()

◆ validate()