Cutelyst  2.3.0
Public Member Functions | Protected Member Functions | List of all members
Cutelyst::ValidatorNumeric Class Reference

Checks if the field under validation could be casted into a numeric value. More...

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

Inheritance diagram for Cutelyst::ValidatorNumeric:
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Public Member Functions

 ValidatorNumeric (const QString &field, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 Constructs a new numeric validator. More...
 
 ~ValidatorNumeric ()
 Deconstructs the numeric 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 genericValidationError (Context *c, const QVariant &errorData=QVariant()) const override
 Returns a generic error message if validation failed.
 
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...
 
virtual QString genericParsingError (Context *c, const QVariant &errorData=QVariant()) const
 Returns a generic error message if an error occures while parsing input. More...
 
virtual QString genericValidationDataError (Context *c, const QVariant &errorData=QVariant()) const
 Returns a generic error message if any validation data is missing or invalid. 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

Checks for signed and unsigned integers as well as floats (also with exponential e) together with minus signs in the input field. * Valid values are in format 3, -3.54, 8.89234e12 etc. Internally this will simply try to convert the parameter value from a QString into a double.

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.
ValidatorInteger

Definition at line 49 of file validatornumeric.h.

Constructor & Destructor Documentation

◆ ValidatorNumeric()

ValidatorNumeric::ValidatorNumeric ( const QString &  field,
const ValidatorMessages messages = ValidatorMessages(),
const QString &  defValKey = QString() 
)
Parameters
fieldName of the input field to validate.
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 validatornumeric.cpp.

Member Function Documentation

◆ validate()

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