Rules

Classes providing rules to validate input data. More...

Collaboration diagram for Rules:

Classes
class	Cutelyst::ValidatorAccepted
	Checks if a field is available and has a specific value. More...
class	Cutelyst::ValidatorAfter
	Checks if a date, time or datetime is after a comparison value. More...
class	Cutelyst::ValidatorAlpha
	Validates an input field for only alphabetic content. More...
class	Cutelyst::ValidatorAlphaDash
	Checks a value for only alpha-numeric content and dashes and underscores. More...
class	Cutelyst::ValidatorAlphaNum
	Checks a value for only alpha-numeric content. More...
class	Cutelyst::ValidatorBefore
	Checks if a date, time or datetime is before a comparison value. More...
class	Cutelyst::ValidatorBetween
	Checks if a value or text length is between a minimum and maximum value. More...
class	Cutelyst::ValidatorBoolean
	Checks if a value can be casted into a boolean. More...
class	Cutelyst::ValidatorCharNotAllowed
	Validates an input field for not allowed characters. More...
class	Cutelyst::ValidatorConfirmed
	Checks for a confirmation input field. More...
class	Cutelyst::ValidatorDate
	Checks if the input data is a valid date. More...
class	Cutelyst::ValidatorDateTime
	Checks if the input data is a valid datetime. More...
class	Cutelyst::ValidatorDifferent
	Checks if two values are different. More...
class	Cutelyst::ValidatorDigits
	Checks for digits only with optional length check. More...
class	Cutelyst::ValidatorDigitsBetween
	Checks for digits only with a length between min and max. More...
class	Cutelyst::ValidatorDomain
	Checks if the value of the input field contains a FQDN according to RFC 1035. More...
class	Cutelyst::ValidatorEmail
	Checks if the value is a valid email address according to specific RFCs. More...
class	Cutelyst::ValidatorFileSize
	Checks if the input field contains a valid file size string like 1.5 GB. More...
class	Cutelyst::ValidatorFilled
	The field under validation must not be empty when it is present. More...
class	Cutelyst::ValidatorIn
	Checks if the field value is one from a list of values. More...
class	Cutelyst::ValidatorInteger
	Checks if the value is an integer. More...
class	Cutelyst::ValidatorIp
	Checks if the field value is a valid IP address. More...
class	Cutelyst::ValidatorJson
	Checks if the inut data is valid JSON. More...
class	Cutelyst::ValidatorMax
	Checks if a value is not bigger or longer than a maximum value. More...
class	Cutelyst::ValidatorMin
	Checks if a value is not smaller or shorter than a maximum value. More...
class	Cutelyst::ValidatorNotIn
	Checks if the field value is not one from a list of values. More...
class	Cutelyst::ValidatorNumeric
	Checks if the field under validation could be casted into a numeric value. More...
class	Cutelyst::ValidatorPresent
	The field under validation must be present in input data but can be empty. More...
class	Cutelyst::ValidatorPwQuality
	Validates an input field with libpwquality to check password quality. More...
class	Cutelyst::ValidatorRegularExpression
	The field under validation must match the given regular expression. More...
class	Cutelyst::ValidatorRequired
	Checks if a field is available and not empty. More...
class	Cutelyst::ValidatorRequiredIf
	The field under validation must be present and not empty if the other field is equal to any value in a list. More...
class	Cutelyst::ValidatorRequiredIfStash
	The field under validation must be present and not empty if the content of a stash key is equal to one from a list. More...
class	Cutelyst::ValidatorRequiredUnless
	The field under validation must be present and not empty unless the other field is equal to any value in the list. More...
class	Cutelyst::ValidatorRequiredUnlessStash
	The field under validation must be present and not empty unless the content of a stash key is equal to a value in a list. More...
class	Cutelyst::ValidatorRequiredWith
	The field under validation must be present and not empty only if any of the other specified fields is present. More...
class	Cutelyst::ValidatorRequiredWithAll
	The field under validation must be present and not empty only if all of the other specified fields are present. More...
class	Cutelyst::ValidatorRequiredWithout
	The field under validation must be present and not empty only if any of the other specified fields is not present. More...
class	Cutelyst::ValidatorRequiredWithoutAll
	The field under validation must be present and not empty only when all of the other specified fields are not present. More...
class	Cutelyst::ValidatorSame
	The given field must match the field under validation. More...
class	Cutelyst::ValidatorSize
	The field under validation must have a size matching the given value. More...
class	Cutelyst::ValidatorTime
	Checks if the input data is a valid time. More...
class	Cutelyst::ValidatorUrl
	The field under validation must be a valid URL. More...

Functions
static bool	Cutelyst::ValidatorEmail::validate (const QString &email, Category threshold=RFC5321, Options options=NoOption, QList< Diagnose > *diagnoses=nullptr)
	Returns true if email is a valid address according to the Category given in the threshold. More...
static bool	Cutelyst::ValidatorAccepted::validate (const QString &value)
	Returns true if the value is equal to yes, on, 1, or true. More...
static bool	Cutelyst::ValidatorAlpha::validate (const QString &value, bool asciiOnly=false)
	Returns true if value only contains alphabetic characters. More...
static bool	Cutelyst::ValidatorAlphaDash::validate (const QString &value, bool asciiOnly=false)
	Returns true if the value only contains alpha-numeric characters, dashes and underscores. More...
static bool	Cutelyst::ValidatorAlphaNum::validate (const QString &value, bool asciiOnly=false)
	Returns true if value only contains alpha-numeric characters. More...
static bool	Cutelyst::ValidatorDomain::validate (const QString &value, bool checkDNS, Diagnose *diagnose=nullptr, QString *extractedValue=nullptr)
	Returns true if value is a valid fully qualified domain name. More...
static bool	Cutelyst::ValidatorCharNotAllowed::validate (const QString &value, const QString &forbiddenChars, QChar *foundChar=nullptr)
	Returns true if value does not contain any of the forbideden characters. More...
static int	Cutelyst::ValidatorPwQuality::validate (const QString &value, const QVariant &options=QVariant(), const QString &oldPassword=QString(), const QString &user=QString())
	Returns the password quality score for value. More...
static bool	Cutelyst::ValidatorIp::validate (const QString &value, Constraints constraints=NoConstraint)
	Returns true if value is a valid IP address within the constraints. More...
static bool	Cutelyst::ValidatorFileSize::validate (const QString &value, double min=-1, double max=-1, Option option=NoOption, const QLocale &locale=QLocale(), double *fileSize=nullptr)
	Returns true if value is a valid file size string. More...
static bool	Cutelyst::ValidatorDigitsBetween::validate (const QString &value, int min, int max)
	Returns true if value only contains digits and has a length between min and max. More...
static bool	Cutelyst::ValidatorDigits::validate (const QString &value, qsizetype length=-1)
	Returns true if value only contains digits. More...

Detailed Description

All validator rule classes are derived from ValidatorRule and are meant to be used as part of Validator. Read the documentation of Validator to learn more about how to use the Validator and the rules. If you want to write your own validator rule, create a new class that is derived from ValidatorRule and reimplement the validate function.

There are three constructor arguments that are common to almost all validator rules: the name of the field to validate (mandatory), a struct containing translatable ValidatorMessages (optional) and a stash key name that contains a default value if the input field is not available (optional available where it makes sense).

Some validators export their validation logic in a static member function so that it can be used without creating a Validator.

Function Documentation

validate() [1/12]

bool ValidatorEmail::validate ( const QString &  email, Category  threshold = RFC5321, Options  options = NoOption, QList< Diagnose > *  diagnoses = nullptr  )

static

Parameters

[in]	email	The address to validate.
[in]	threshold	The threshold category that limits the diagnose that is accepted as valid.
[in]	options	Options for the validation process.
[out]	diagnoses	If not a nullptr, this will contain a list of all issues found by the check, ordered from the highest to the lowest.

Returns

true if email is a valid address according to the Category given in the threshold.

Definition at line 1724 of file validatoremail.cpp.

validate() [2/12]

bool ValidatorAccepted::validate ( const QString &  value )

static

Returns true if the value is equal to yes, on, 1, or true, otherwise returns false.

Definition at line 38 of file validatoraccepted.cpp.

References Qt::CaseInsensitive, and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorAccepted::validate().

validate() [3/12]

bool ValidatorAlpha::validate ( const QString &  value, bool  asciiOnly = false  )

static

Parameters

value	The value to validate.
asciiOnly	If true, only ASCII characters are allowed.

Returns

true if value only contains alphabetic characters

Definition at line 45 of file validatoralpha.cpp.

References QString::contains(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorAlpha::validate().

validate() [4/12]

bool ValidatorAlphaDash::validate ( const QString &  value, bool  asciiOnly = false  )

static

Parameters

value	The value to validate as it is.
asciiOnly	If true, only ASCII characters are allowed.

Returns

true if the value only contains alpha-numeric characters, dashes and underscores

Definition at line 44 of file validatoralphadash.cpp.

References QString::contains(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorAlphaDash::validate().

validate() [5/12]

bool ValidatorAlphaNum::validate ( const QString &  value, bool  asciiOnly = false  )

static

Parameters

value	The value to validate as it is.
asciiOnly	If true, only ASCII characters are allowed.

Returns

true if the value only contains alpha-numeric characters

Definition at line 45 of file validatoralphanum.cpp.

References QString::contains(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorAlphaNum::validate().

validate() [6/12]

bool ValidatorDomain::validate ( const QString &  value, bool  checkDNS, Diagnose *  diagnose = nullptr, QString *  extractedValue = nullptr  )

static

Parameters

value	The value to validate.
checkDNS	If true, a DNS lookup will be performed to check if the domain name exists in the domain name system.
diagnose	Optional pointer to a variable that will be filled with the Diagnose that describes the error if validation fails.
extractedValue	Optional pointer to a variable that will contain the validated domain converted into ACE puny code.

Returns

true if the value is a valid domain name.

Definition at line 26 of file validatordomain.cpp.

References QDnsLookup::A, QDnsLookup::AAAA, QDnsLookup::abort(), QList::at(), QString::at(), QString::chop(), QObject::connect(), Cutelyst::ValidatorDomain::DashEnd, Cutelyst::ValidatorDomain::DashStart, Cutelyst::ValidatorDomain::DigitStart, Cutelyst::ValidatorDomain::DNSTimeout, QList::empty(), Cutelyst::ValidatorDomain::EmptyLabel, QString::endsWith(), QDnsLookup::error, QEventLoop::exec(), QDnsLookup::finished(), QString::fromLatin1(), QDnsLookup::hostAddressRecords(), Cutelyst::ValidatorDomain::InvalidChars, Cutelyst::ValidatorDomain::InvalidLabelCount, Cutelyst::ValidatorDomain::InvalidTLD, QString::isEmpty(), Qt::KeepEmptyParts, Cutelyst::ValidatorDomain::LabelTooLong, QList::last(), QString::length(), QDnsLookup::lookup(), Cutelyst::ValidatorDomain::MissingDNS, QDnsLookup::NoError, QDnsLookup::OperationCancelledError, QEventLoop::quit(), QTimer::singleShot, QList::size(), QString::size(), QString::split(), QString::startsWith(), QUrl::toAce(), QString::toLower(), Cutelyst::ValidatorDomain::TooLong, QChar::unicode(), Cutelyst::ValidatorDomain::Valid, and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorDomain::validate().

validate() [7/12]

bool ValidatorCharNotAllowed::validate ( const QString &  value, const QString &  forbiddenChars, QChar *  foundChar = nullptr  )

static

Parameters

value	The value to validate.
forbiddenChars	The list of forbidden characters.
foundChar	If set, it will contain the first found chararacter that is forbidden.

Returns

true if the value does not contain any of the forbiddenChars

Definition at line 20 of file validatorcharnotallowed.cpp.

References QString::contains(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorCharNotAllowed::validate().

validate() [8/12]

int ValidatorPwQuality::validate ( const QString &  value, const QVariant &  options = QVariant(), const QString &  oldPassword = QString(), const QString &  user = QString()  )

static

Parameters

value	The value to validate.
options	<a hrefd=#options">Options for libpwquality.
oldPassword	Optional old password used for some checks.
user	Optional user name used for some checks.

Returns

the password quality score, everything below 0 is an error, everything >= 0 is a quality score where 0-30 is low, 30-60 medium and 60-100 high quality. For errors you can use ValidatorPwQuality::errorString() to get a human readable string explaining the return value.

Definition at line 31 of file validatorpwquality.cpp.

References QByteArray::constData(), QList::data(), QByteArray::isEmpty(), QString::isEmpty(), QVariant::isValid(), QMetaType::QString, QMetaType::QVariantMap, QList::size(), QVariant::toMap(), QVariant::toString(), QString::toUtf8(), QVariant::typeId(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorPwQuality::validate().

validate() [9/12]

bool ValidatorIp::validate ( const QString &  value, Constraints  constraints = NoConstraint  )

static

Parameters

value	The value to validate.
constraints	Optional validation constraints.

Returns

true if value is a valid IP address within the constraints.

Definition at line 51 of file validatorip.cpp.

References QString::contains(), Cutelyst::ValidatorIp::IPv4Only, QAbstractSocket::IPv4Protocol, Cutelyst::ValidatorIp::IPv6Only, Cutelyst::ValidatorIp::NoConstraint, Cutelyst::ValidatorIp::NoMultiCast, Cutelyst::ValidatorIp::NoPrivateRange, Cutelyst::ValidatorIp::NoReservedRange, Cutelyst::ValidatorIp::PublicOnly, and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorIp::validate().

validate() [10/12]

bool ValidatorFileSize::validate ( const QString &  value, double  min = -1, double  max = -1, Option  option = NoOption, const QLocale &  locale = QLocale(), double *  fileSize = nullptr  )

static

Parameters

[in]	value	The value to validate.
[in]	min	Optional minimum size. Use a number lower 0 to disable the check.
[in]	max	Optional maximum size. Use a number lower 0 to disable the check.
[in]	option	Option to use when validating and generating the fileSize.
[in]	locale	The locale to use when validating the input value.
[out]	fileSize	Optional pointer to a double variable that will contain the extracted file size if validation succeeded.

Returns

true if value is a valid file size string.

Since

Cutelyst 2.0.0

Definition at line 25 of file validatorfilesize.cpp.

References QString::append(), QLocale::decimalPoint(), Cutelyst::ValidatorFileSize::ForceBinary, Cutelyst::ValidatorFileSize::ForceDecimal, QString::isEmpty(), Cutelyst::ValidatorFileSize::OnlyBinary, Cutelyst::ValidatorFileSize::OnlyDecimal, QString::simplified(), QLocale::toDouble(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorFileSize::validate().

validate() [11/12]

bool ValidatorDigitsBetween::validate ( const QString &  value, int  min, int  max  )

static

Nothe that this might return true for an empty value if 0 is between min and max.

Parameters

value	The value to validate as it is.
min	Minimum length of the digits.
max	Maximum length of the digits.

Returns

true if value string only contains digits and has a length between min and max, otherwise it returns false.

Definition at line 72 of file validatordigitsbetween.cpp.

References QString::length(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorDigitsBetween::validate().

validate() [12/12]

bool ValidatorDigits::validate ( const QString &  value, qsizetype  length = -1  )

static

Note that this function will return true for an empty value if the length check is disabled.

Parameters

value	The value to validate as it is.
length	Exact length of the digits, defaults to -1. A value lower 1 disables the length check.

Returns

true if the value only contains digits

Definition at line 59 of file validatordigits.cpp.

References QString::length(), and Cutelyst::ValidatorRule::value().

Referenced by Cutelyst::ValidatorDigits::validate().