Cutelyst  2.5.0
Public Member Functions | Protected Member Functions | List of all members
Cutelyst::ValidatorMin Class Reference

Checks if a value is not smaller or shorter than a maximum value. More...

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

Inheritance diagram for Cutelyst::ValidatorMin:
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Public Member Functions

 ValidatorMin (const QString &field, QMetaType::Type type, const QVariant &min, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 Constructs a new min validator. More...
 
 ~ValidatorMin ()
 Deconstructs the min validator.
 
- Public Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (const QString &field, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 Constructs a new ValidatorRule with the given parameters. More...
 
 ~ValidatorRule ()
 Deconstructs the ValidatorRule.
 

Protected Member Functions

QString genericParsingError (Context *c, const QVariant &errorData) const override
 Returns a generic error message for input value parsing errors.
 
QString genericValidationDataError (Context *c, const QVariant &errorData) const override
 Returns a generic error message for validation data errors. More...
 
QString genericValidationError (Context *c, const QVariant &errorData=QVariant()) const override
 Returns a generic error message. More...
 
ValidatorReturnType validate (Context *c, const ParamsMultiMap &params) const override
 Performs the validation and returns the result. More...
 
- Protected Member Functions inherited from Cutelyst::ValidatorRule
 ValidatorRule (ValidatorRulePrivate &dd)
 Constructs a new ValidatorRule object with the given private class. More...
 
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 and put it into the result. More...
 
QString field () const
 Returns the name of the field to validate. More...
 
QString label (Context *c) const
 Returns the human readable field label used for generic error messages. More...
 
QString parsingError (Context *c, const QVariant &errorData=QVariant()) const
 Returns an error message if an error occured while parsing input. More...
 
bool trimBefore () const
 Returns true if the field value should be trimmed before validation. More...
 
QString validationDataError (Context *c, const QVariant &errorData=QVariant()) const
 Returns an error message if any validation data is missing or invalid. More...
 
QString validationError (Context *c, const QVariant &errorData=QVariant()) const
 Returns a descriptive error message if validation failed. More...
 
QString value (const ParamsMultiMap &params) const
 Returns the value of the field from the input params.
 

Detailed Description

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 min to define the minimum value and type to set the type to check against. min 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 min 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.
See also
Validator for general usage of validators.
ValidatorMax, ValidatorBetween, ValidatorSize

Definition at line 53 of file validatormin.h.

Constructor & Destructor Documentation

◆ ValidatorMin()

ValidatorMin::ValidatorMin ( const QString &  field,
QMetaType::Type  type,
const QVariant &  min,
const ValidatorMessages messages = ValidatorMessages(),
const QString &  defValKey = QString() 
)
Parameters
fieldName of the input field to validate.
typeThe type to compare.
minMinimum value. 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 23 of file validatormin.cpp.

Member Function Documentation

◆ genericValidationDataError()

QString ValidatorMin::genericValidationDataError ( Context c,
const QVariant &  errorData 
) const
overrideprotectedvirtual
Parameters
cThe current context, used for translations.
errorDataWill contain either -1 if comparison value is invalid or 0 if the type is not supported.

Reimplemented from Cutelyst::ValidatorRule.

Definition at line 226 of file validatormin.cpp.

References Cutelyst::ValidatorRule::field(), Cutelyst::ValidatorRule::label(), and Cutelyst::Context::translate().

◆ genericValidationError()

QString ValidatorMin::genericValidationError ( Cutelyst::Context c,
const QVariant &  errorData = QVariant() 
) const
overrideprotectedvirtual
Parameters
cThe current context, used for translations.
errorDataWill contain a QVariantMap with "val" containing the value and "min" containing the comparison value.

Reimplemented from Cutelyst::ValidatorRule.

Definition at line 174 of file validatormin.cpp.

References Cutelyst::ValidatorRule::label(), Cutelyst::Context::locale(), Cutelyst::Context::translate(), and Cutelyst::ValidatorRule::validationDataError().

◆ validate()

ValidatorReturnType ValidatorMin::validate ( Context c,
const ParamsMultiMap params 
) const
overrideprotectedvirtual