Cutelyst  2.13.0
Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
Cutelyst::ValidatorAlpha Class Reference

Validates an input field for only alphabetic content. More...

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

Inheritance diagram for Cutelyst::ValidatorAlpha:
Inheritance graph

Public Member Functions

 ValidatorAlpha (const QString &field, bool asciiOnly=false, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
 Constructs a new alpha validator. More...
 ~ValidatorAlpha () override
 Deconstructs the alpha 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...
virtual ~ValidatorRule ()
 Deconstructs the ValidatorRule.

Static Public Member Functions

static bool validate (const QString &value, bool asciiOnly=false)
 Returns true if value only contains alphabetic characters. More...

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

The field under validation is only allowed to contain alphabetic characters. If asciiOnly is set to true, only US-ASCII characters are allowed, otherwise all UTF-8 alpha-numeric characters are allowed.

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.
"Hallo Kuddel!" // invalid
"HalloKöddel" // valid if asciiOnly is false, otherwise it is false
"HalloKuddel" // valid if asciiOnly is true
" " // valid if trimBefore is true, invalid if trimBefore is false
See also
Validator for general usage of validators.
ValidatorAlphaDash, ValidatorAlphaNum

Definition at line 54 of file validatoralpha.h.

Constructor & Destructor Documentation

◆ ValidatorAlpha()

ValidatorAlpha::ValidatorAlpha ( const QString &  field,
bool  asciiOnly = false,
const ValidatorMessages messages = ValidatorMessages(),
const QString &  defValKey = QString() 
fieldName of the input field to validate.
asciiOnlyIf true, only ASCII characters are allowed.
messagesCustom error messages if validation fails.
defValKeyStash key containing a default value if input field is empty. This value will NOT be validated.

Definition at line 24 of file validatoralpha.cpp.

Member Function Documentation

◆ validate()

ValidatorReturnType ValidatorAlpha::validate ( Cutelyst::Context c,
const ParamsMultiMap params 
) const