Cutelyst::Context Class Reference

The Cutelyst Context. More...

#include <Cutelyst/Context>

Inheritance diagram for Cutelyst::Context:

Public Slots
void	finalize ()

Public Member Functions
	Context (Application *app)
virtual	~Context ()
Action *	action () const noexcept
QString	actionName () const noexcept
Application *	app () const noexcept
void	appendError (const QString &error)
void	attachAsync ()
QVariantMap	config () const noexcept
QVariant	config (const QString &key, const QVariant &defaultValue={}) const
Controller *	controller () const noexcept
Controller *	controller (QStringView name) const
QString	controllerName () const noexcept
View *	customView () const noexcept
void	detach (Action *action=nullptr)
void	detachAsync () noexcept
bool	detached () const noexcept
Dispatcher *	dispatcher () const noexcept
Engine *	engine () const noexcept
bool	error () const noexcept
QStringList	errors () const noexcept
bool	execute (Component *code)
bool	forward (Component *component)
bool	forward (QStringView action)
Action *	getAction (QStringView action, QStringView ns={}) const
QVector< Action * >	getActions (QStringView action, QStringView ns={}) const
QLocale	locale () const noexcept
QString	ns () const noexcept
template<typename T >
T	plugin ()
QVector< Plugin * >	plugins () const
QString	qtTrId (const char *id, int n=-1) const
Request *	req () const noexcept
Request *	request () const noexcept
Response *	res () const noexcept
Response *	response () const noexcept
bool	setCustomView (QStringView name)
void	setLocale (const QLocale &locale)
void	setStash (const QString &key, const ParamsMultiMap &map)
void	setStash (const QString &key, const QVariant &value)
void	setState (bool state) noexcept
QStack< Component * >	stack () const noexcept
QVariantHash &	stash ()
QVariant	stash (const QString &key) const
QVariant	stash (const QString &key, const QVariant &defaultValue) const
void	stash (const QVariantHash &unite)
bool	stashRemove (const QString &key)
QVariant	stashTake (const QString &key)
bool	state () const noexcept
QString	translate (const char *context, const char *sourceText, const char *disambiguation=nullptr, int n=-1) const
QUrl	uriFor (Action *action, const ParamsMultiMap &queryValues) const
QUrl	uriFor (Action *action, const QStringList &captures={}, const QStringList &args={}, const ParamsMultiMap &queryValues={}) const
QUrl	uriFor (const QString &path, const ParamsMultiMap &queryValues) const
QUrl	uriFor (const QString &path={}, const QStringList &args={}, const ParamsMultiMap &queryValues={}) const
QUrl	uriForAction (QStringView path, const ParamsMultiMap &queryValues) const
QUrl	uriForAction (QStringView path, const QStringList &captures={}, const QStringList &args={}, const ParamsMultiMap &queryValues={}) const
View *	view (QStringView name={}) const
Public Member Functions inherited from QObject
	QObject (QObject *parent)
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo () const const
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isQuickItemType () const const
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_GADGET_EXPORT (EXPORT_MACRO)
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_MOC_INCLUDE Q_MOC_INCLUDE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setObjectName (QAnyStringView name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThread *	thread () const const

Protected Member Functions
	Context (ContextPrivate *priv)
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Properties
Action *	action
QString	actionName
QVariantMap	config
Controller *	controller
QString	controllerName
QString	namespace
QString	ns
Request *	req
Request *	request
bool	state
Properties inherited from QObject
	objectName

Friends
class	Action
class	ActionChain
class	Application
class	Async
class	Controller
class	DispatchType
class	Engine
class	Plugin

Additional Inherited Members
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
Public Attributes inherited from QObject
typedef	QObjectList

Detailed Description

This is the context class that glues Request and Response plus some helper methods.

Logging category

cutelyst.core
Logging with Cutelyst

Definition at line 41 of file context.h.

Constructor & Destructor Documentation

Context() [1/2]

Context::Context

(

Application *

app

)

Constructs a new DUMMY Context object that is child of Application.

Warning

This currently is experimental to allow non network events (such as database notification) to be able to use our infrastructure.

Definition at line 29 of file context.cpp.

References app(), Cutelyst::Request::body(), Cutelyst::Application::defaultHeaders(), Cutelyst::Application::defaultLocale(), QIODevice::open(), QIODeviceBase::ReadWrite, and req.

~Context()

Context::~Context ( )

virtual

Destroys the Context object. This will also delete the associated Request and Response.

Definition at line 43 of file context.cpp.

Context() [2/2]

Context::Context ( ContextPrivate *  priv )

protected

Constructs a new Context object using private implementation.

Definition at line 24 of file context.cpp.

Member Function Documentation

action()

Action * Context::action ( ) const

noexcept

Returns a pointer to the current action.

Definition at line 109 of file context.cpp.

actionName()

QString Context::actionName ( ) const

noexcept

Returns the private name of the current action.

Definition at line 115 of file context.cpp.

app()

Application * Context::app ( ) const

noexcept

Returns the application instance. See Cutelyst::Application.

Definition at line 91 of file context.cpp.

Referenced by Context().

appendError()

void Context::appendError

(

const QString &

error

)

Sets an error string and tries to stop.

See also

error() errors()

Definition at line 56 of file context.cpp.

References error().

Referenced by Cutelyst::Dispatcher::dispatch(), execute(), Cutelyst::ViewEmail::render(), and Cutelyst::CuteleeView::render().

attachAsync()

void Context::attachAsync

(

)

Reattaches to the processing chain in order to process the remaining of the action chaing. Call this after you called detachAsync().

The scoped ASync class can make handlying async requests easier.

Definition at line 355 of file context.cpp.

References action, execute(), finalize(), and QObject::Q_EMIT().

Referenced by Cutelyst::UA::forwardAsync().

config() [1/2]

QVariantMap Context::config ( ) const

noexcept

Returns a configuration mapping for all configuration entries read from the Cutelyst configuration section.

See also

Configure your application

Definition at line 478 of file context.cpp.

config() [2/2]

QVariant Context::config	(	const QString &	key,
		const QVariant &	defaultValue = {}
	)		const

Returns a configuration value for key. If key is not found, defaultValue will be returned.

This calls Application::config(), so it will only return entries from the Cutelyst configuration section.

See also

Configure your application

Definition at line 472 of file context.cpp.

controller() [1/2]

Controller * Context::controller ( ) const

noexcept

Returns the current controller.

Definition at line 151 of file context.cpp.

controller() [2/2]

Controller * Context::controller

(

QStringView

name

)

const

Returns the controller by name or nullptr if the controller is not found.

Definition at line 157 of file context.cpp.

controllerName()

QString Cutelyst::Context::controllerName ( ) const

noexcept

Returns the current controller name.

Definition at line 145 of file context.cpp.

customView()

View * Context::customView ( ) const

noexcept

Returns the View set to be used for rendering this request, if one is set by setCustomView() or nullptr if none was set.

Definition at line 163 of file context.cpp.

Referenced by Cutelyst::RenderView::doExecute().

detach()

void Context::detach

(

Action *

action = nullptr

)

The same as forward().

When called with no arguments it escapes the processing chain entirely.

See also

finalize()

Definition at line 339 of file context.cpp.

References action.

Referenced by Cutelyst::RoleACL::aroundExecute(), Cutelyst::Action::doExecute(), Cutelyst::LangSelect::fromPath(), and Cutelyst::LangSelect::fromUrlQuery().

detachAsync()

void Context::detachAsync ( )

noexcept

Detaches the processing chain telling the Engine that the request is not finished yet.

The scoped ASync class can make handling async requests easier.

It’s often useful to call async API’s. While convenient, the use of QEventLoop will only work for the first request or lead to a crash due stacking of calls.

This method, tells the Engine that this request is not finished yet, making it return to the event loop to process other requests or the task that was created prior to calling this.

Once done, call attachAsync() in order to process the remaining of the action chain.

Definition at line 349 of file context.cpp.

Referenced by Cutelyst::UA::forwardAsync().

detached()

bool Context::detached ( ) const

noexcept

Returns true if the last executed Action requested that the processing be escaped.

Definition at line 333 of file context.cpp.

Referenced by Cutelyst::Action::doExecute().

dispatcher()

Dispatcher * Context::dispatcher ( ) const

noexcept

Returns the dispatcher instance. See Cutelyst::Dispatcher.

Definition at line 139 of file context.cpp.

engine()

Engine * Context::engine ( ) const

noexcept

Returns the engine instance. See Cutelyst::Engine.

Definition at line 85 of file context.cpp.

error()

bool Context::error ( ) const

noexcept

Returns true if an error was set.

See also

appendError() errors()

Definition at line 50 of file context.cpp.

Referenced by appendError(), and Cutelyst::EngineRequest::finalize().

errors()

QStringList Context::errors ( ) const

noexcept

Returns a list of errors that were defined.

See also

error() appendError()

Definition at line 67 of file context.cpp.

Referenced by Cutelyst::EngineRequest::finalizeError().

execute()

bool Context::execute

(

Component *

code

)

Execute an action. Errors are available via errors().

Definition at line 423 of file context.cpp.

References appendError(), QString::arg(), Cutelyst::Component::execute(), QString::isEmpty(), Cutelyst::Component::name(), QString::number(), Cutelyst::Component::reverse(), and setState().

Referenced by attachAsync(), and Cutelyst::Dispatcher::forward().

finalize

void Context::finalize ( )

slot

Finalize the request right away. This is automatically called at the end of the actions chain.

Definition at line 493 of file context.cpp.

References QString::fromLatin1(), QByteArray::number(), QString::number(), QString::size(), and QString::truncate().

Referenced by attachAsync().

forward() [1/2]

bool Context::forward

(

Component *

component

)

This is one way of calling another action (method) in the same or a different controller. You can also use directly call another method to the same or a different controller.

The main difference is that 'forward' uses some of the Cutelyst request cycle overhead, including debugging, which may be useful to you. On the other hand, there are some complications to using 'forward', restrictions on values returned from 'forward', and it may not handle errors as you prefer. Whether you use 'forward' or not is up to you; it is not considered superior to the other ways to call a method.

This calls Component::execute().

Keep in mind that the End() method used is that of the caller action. So a c->detach() inside a forwarded action would run the End() method from the original action requested.

Definition at line 393 of file context.cpp.

References action.

Referenced by Cutelyst::RenderView::doExecute().

forward() [2/2]

bool Context::forward

(

QStringView

action

)

This is one way of calling another action (method) in the same or a different controller. You can also use directly call another method to the same or a different controller.

The main difference is that 'forward' uses some of the Cutelyst request cycle overhead, including debugging, which may be useful to you. On the other hand, there are some complications to using 'forward', restrictions on values returned from 'forward', and it may not handle errors as you prefer. Whether you use 'forward' or not is up to you; it is not considered superior to the other ways to call a method.

This calls another action, by its private name.

Keep in mind that the End() method used is that of the caller action. So a c->detach() inside a forwarded action would run the End() method from the original action requested.

Definition at line 399 of file context.cpp.

References action.

getAction()

Action * Context::getAction	(	QStringView	action,
		QStringView	ns = {}
	)		const

Gets an action in a given namespace ns.

Definition at line 405 of file context.cpp.

References action, and ns.

getActions()

QVector< Action * > Context::getActions	(	QStringView	action,
		QStringView	ns = {}
	)		const

Gets all actions of a given action name in a namespace ns and all parent namespaces.

Definition at line 411 of file context.cpp.

References action, and ns.

locale()

QLocale Context::locale ( ) const

noexcept

Returns the current locale to be used when processing a View or translating user messages.

If not explicity set by setLocale() it will use the default locale set via Application::setDefaultLocale().

See also

Translate your application

Definition at line 460 of file context.cpp.

Referenced by Cutelyst::ValidatorEmail::diagnoseString(), Cutelyst::LangSelect::fromPath(), Cutelyst::ValidatorAfter::genericValidationError(), Cutelyst::ValidatorBefore::genericValidationError(), Cutelyst::ValidatorBetween::genericValidationError(), Cutelyst::ValidatorIn::genericValidationError(), Cutelyst::ValidatorInteger::genericValidationError(), Cutelyst::ValidatorMax::genericValidationError(), Cutelyst::ValidatorMin::genericValidationError(), Cutelyst::ValidatorSize::genericValidationError(), Cutelyst::ValidatorFileSize::inputPattern(), Cutelyst::CuteleeView::render(), setLocale(), Cutelyst::ValidatorBetween::validate(), Cutelyst::ValidatorFileSize::validate(), Cutelyst::ValidatorMax::validate(), Cutelyst::ValidatorMin::validate(), and Cutelyst::ValidatorSize::validate().

ns()

QString Context::ns ( ) const

noexcept

Returns the namespace of the current action. I.e. the URI prefix corresponding to the controller of the current action.

For example: on a class named FooBar which inherits Controller this will return 'foo/bar'.

Definition at line 121 of file context.cpp.

plugin()

template<typename T >

T Cutelyst::Context::plugin ( )

inline

Returns the registered plugin that casts to the template type T.

Definition at line 490 of file context.h.

plugins()

QVector< Cutelyst::Plugin * > Context::plugins

(

)

const

Returns all registered plugins.

Definition at line 417 of file context.cpp.

qtTrId()

QString Cutelyst::Context::qtTrId ( const char *  id, int  n = -1  ) const

inline

Finds and returns a translated string.

Returns a translated string identified by id. If no matching string is found, the id itself is returned. This can be used similar to Qt’s global qtTrId() function.

If n >= 0, all occurences of %n in the resulting string are replaced with a decimal representation of n. In addition, appending n’s value, the translation may vary.

Meta data and comments can be passed as documented for QObject::tr(). In addition, it is possible to supply a source string template like that:

//% <C string>

or

\begincomment% <C string> \endcomment

Example:

void MyController::index(Context *c)
{
     //% "%n fooish bar(s) found.\n"
     //% "Do you want to continue?"
     c->res()->setBody(c->qtTrId("my-app-translation-id", n));
}

Creating QM files suitable for use with this function requires passing the -idbased option to the lrelease tool.

See also

Translate your application

Since

Cutelyst 3.9.0

Definition at line 656 of file context.h.

Referenced by Cutelyst::ValidatorEmail::categoryString(), Cutelyst::ValidatorDomain::diagnoseString(), Cutelyst::ValidatorEmail::diagnoseString(), Cutelyst::Dispatcher::dispatch(), Cutelyst::ValidatorPwQuality::errorString(), Cutelyst::Memcached::errorString(), Cutelyst::ValidatorBetween::genericParsingError(), Cutelyst::ValidatorMax::genericParsingError(), Cutelyst::ValidatorMin::genericParsingError(), Cutelyst::ValidatorSize::genericParsingError(), Cutelyst::ValidatorAfter::genericParsingError(), Cutelyst::ValidatorBefore::genericParsingError(), Cutelyst::ValidatorRule::genericParsingError(), Cutelyst::ValidatorBetween::genericValidationDataError(), Cutelyst::ValidatorFileSize::genericValidationDataError(), Cutelyst::ValidatorIn::genericValidationDataError(), Cutelyst::ValidatorMax::genericValidationDataError(), Cutelyst::ValidatorMin::genericValidationDataError(), Cutelyst::ValidatorNotIn::genericValidationDataError(), Cutelyst::ValidatorSize::genericValidationDataError(), Cutelyst::ValidatorAfter::genericValidationDataError(), Cutelyst::ValidatorBefore::genericValidationDataError(), Cutelyst::ValidatorCharNotAllowed::genericValidationDataError(), Cutelyst::ValidatorRule::genericValidationDataError(), Cutelyst::ValidatorAccepted::genericValidationError(), Cutelyst::ValidatorAfter::genericValidationError(), Cutelyst::ValidatorAlpha::genericValidationError(), Cutelyst::ValidatorAlphaDash::genericValidationError(), Cutelyst::ValidatorAlphaNum::genericValidationError(), Cutelyst::ValidatorBefore::genericValidationError(), Cutelyst::ValidatorBetween::genericValidationError(), Cutelyst::ValidatorBoolean::genericValidationError(), Cutelyst::ValidatorCharNotAllowed::genericValidationError(), Cutelyst::ValidatorConfirmed::genericValidationError(), Cutelyst::ValidatorDate::genericValidationError(), Cutelyst::ValidatorDateTime::genericValidationError(), Cutelyst::ValidatorDifferent::genericValidationError(), Cutelyst::ValidatorDigits::genericValidationError(), Cutelyst::ValidatorDigitsBetween::genericValidationError(), Cutelyst::ValidatorFileSize::genericValidationError(), Cutelyst::ValidatorFilled::genericValidationError(), Cutelyst::ValidatorIn::genericValidationError(), Cutelyst::ValidatorInteger::genericValidationError(), Cutelyst::ValidatorIp::genericValidationError(), Cutelyst::ValidatorJson::genericValidationError(), Cutelyst::ValidatorMax::genericValidationError(), Cutelyst::ValidatorMin::genericValidationError(), Cutelyst::ValidatorNotIn::genericValidationError(), Cutelyst::ValidatorNumeric::genericValidationError(), Cutelyst::ValidatorPresent::genericValidationError(), Cutelyst::ValidatorRegularExpression::genericValidationError(), Cutelyst::ValidatorRequired::genericValidationError(), Cutelyst::ValidatorRequiredIf::genericValidationError(), Cutelyst::ValidatorRequiredIfStash::genericValidationError(), Cutelyst::ValidatorRequiredUnless::genericValidationError(), Cutelyst::ValidatorRequiredUnlessStash::genericValidationError(), Cutelyst::ValidatorRequiredWith::genericValidationError(), Cutelyst::ValidatorRequiredWithAll::genericValidationError(), Cutelyst::ValidatorRequiredWithout::genericValidationError(), Cutelyst::ValidatorRequiredWithoutAll::genericValidationError(), Cutelyst::ValidatorSame::genericValidationError(), Cutelyst::ValidatorSize::genericValidationError(), Cutelyst::ValidatorTime::genericValidationError(), Cutelyst::ValidatorUrl::genericValidationError(), Cutelyst::ValidatorRule::genericValidationError(), Cutelyst::ValidatorRule::label(), Cutelyst::ValidatorRule::parsingError(), Cutelyst::CuteleeView::render(), Cutelyst::ValidatorRule::validationDataError(), and Cutelyst::ValidatorRule::validationError().

req()

Request * Context::req ( ) const

noexcept

Short for request().

Definition at line 133 of file context.cpp.

request()

Request * Context::request ( ) const

noexcept

Returns the current Request object containing information about the client request.

Definition at line 127 of file context.cpp.

res()

Response * Context::res ( ) const

noexcept

Returns the current Cutelyst::Response object, see there for details.

Definition at line 103 of file context.cpp.

Referenced by Cutelyst::RenderView::doExecute(), Cutelyst::LangSelect::fromPath(), and Cutelyst::CuteleeView::render().

response()

Response * Context::response ( ) const

noexcept

Returns the current Cutelyst::Response object, see there for details.

Definition at line 97 of file context.cpp.

Referenced by Cutelyst::EngineRequest::finalizeBody(), Cutelyst::EngineRequest::finalizeCookies(), Cutelyst::EngineRequest::finalizeError(), Cutelyst::EngineRequest::finalizeHeaders(), Cutelyst::UA::forwardAsync(), Cutelyst::UA::forwardRequestResponse(), and Cutelyst::ViewJson::render().

setCustomView()

bool Context::setCustomView

(

QStringView

name

)

Defines the View to be used to render the request, it must be previously be registered by Cutelyst::Application.

Action classes like RenderView will use this value to overwrite their settings.

Returns true if a view with the given name was found.

Definition at line 175 of file context.cpp.

setLocale()

void Context::setLocale

(

const QLocale &

locale

)

Defines the current locale to be used when processing a View or translating user messages.

Setting a locale on a web application can be done in many ways, so it’s up to the developer to decide which one to use.

For example it’s possible to try to guess the user locale with the request header Accept-Language, or use the chained dispatcher to first match the locale as in "example.com/pt-br/some_action", or store the locale into a cookie or session.

Be sure to set it as soon as possible so that all content can be properly localized.

See also

LangSelect

Translate your application

Definition at line 466 of file context.cpp.

References locale().

Referenced by Cutelyst::LangSelect::fromPath().

setStash() [1/2]

void Context::setStash	(	const QString &	key,
		const ParamsMultiMap &	map
	)

A convenient method to set a single ParamsMultiMap map to the stash on key.

Definition at line 218 of file context.cpp.

References QVariant::fromValue().

setStash() [2/2]

void Context::setStash	(	const QString &	key,
		const QVariant &	value
	)

A convenient method to set a single value to the stash on key.

Definition at line 212 of file context.cpp.

Referenced by Cutelyst::SessionStoreFile::deleteSessionData(), Cutelyst::MemcachedSessionStore::deleteSessionData(), Cutelyst::Session::deleteValue(), Cutelyst::Session::deleteValues(), Cutelyst::CSRFProtection::getToken(), Cutelyst::ValidatorFileSize::inputPattern(), Cutelyst::StatusMessage::load(), Cutelyst::ViewEmailTemplate::render(), Cutelyst::CuteleeView::render(), Cutelyst::Session::setValue(), Cutelyst::SessionStoreFile::storeSessionData(), Cutelyst::MemcachedSessionStore::storeSessionData(), and Cutelyst::Validator::validate().

setState()

void Context::setState ( bool  state )

noexcept

Sets the state of the current executed action. Setting to false will make the dispatcher skip non processed actions.

Definition at line 79 of file context.cpp.

Referenced by Cutelyst::Action::doExecute(), and execute().

stack()

QStack< Component * > Context::stack ( ) const

noexcept

Returns the internal execution stack (actions that are currently executing).

Definition at line 224 of file context.cpp.

stash() [1/4]

QVariantHash & Context::stash

(

)

Returns a QVariantHash reference to the stash, which may be used to store data and pass it between components during a request.

The stash is automatically sent to the view. The stash is cleared at the end of a request; it cannot be used for persistent storage (for this you must use a session; see Session for a complete system integrated with Cutelyst).

Definition at line 182 of file context.cpp.

stash() [2/4]

QVariant Context::stash

(

const QString &

key

)

const

A convenient method to retrieve a single value from the stash by key.

Definition at line 188 of file context.cpp.

stash() [3/4]

QVariant Context::stash	(	const QString &	key,
		const QVariant &	defaultValue
	)		const

A convenient method to retrieve a single value with the stash by key. If key is not found, defaultValue will be returned.

Definition at line 194 of file context.cpp.

stash() [4/4]

void Context::stash

(

const QVariantHash &

unite

)

You can set hash keys by passing arguments, that will be united with the stash, which may be used to store data and pass it between components during a request.

The stash is automatically sent to the View. The stash is cleared at the end of a request; it cannot be used for persistent storage (for this you must use a session; see Session for a complete system integrated with Cutelyst).

If a given key is present it will be replaced.

c->stash({
             {"foo", 10},
             {"bar", QStringLiteral("my stash value")}
           });

Definition at line 562 of file context.cpp.

Referenced by Cutelyst::CSRFProtection::checkPassed(), Cutelyst::ValidatorRule::defaultValue(), Cutelyst::Session::deleteReason(), Cutelyst::Session::deleteValue(), Cutelyst::Session::deleteValues(), Cutelyst::Session::expires(), Cutelyst::CSRFProtection::getToken(), Cutelyst::Session::id(), Cutelyst::ViewJson::render(), Cutelyst::ViewEmail::render(), Cutelyst::ViewEmailTemplate::render(), Cutelyst::CuteleeView::render(), Cutelyst::Session::setValue(), Cutelyst::Authentication::user(), Cutelyst::Authentication::userExists(), Cutelyst::Authentication::userInRealm(), Cutelyst::ValidatorIn::validate(), Cutelyst::ValidatorNotIn::validate(), Cutelyst::ValidatorPwQuality::validate(), Cutelyst::ValidatorRequiredIfStash::validate(), Cutelyst::ValidatorRequiredUnlessStash::validate(), and Cutelyst::Session::value().

stashRemove()

bool Context::stashRemove

(

const QString &

key

)

Removes the item that has the key from the stash. Returns true if any item was removed.

Definition at line 206 of file context.cpp.

stashTake()

QVariant Context::stashTake

(

const QString &

key

)

Removes the item with the key from the stash and returns the value associated with it. If the item does not exist in the stash, the function simply returns a default-constructed value. If you don’t use the return value, stashRemove() is more efficient.

Definition at line 200 of file context.cpp.

state()

bool Context::state ( ) const

noexcept

Contains the return value of the last executed action.

Definition at line 73 of file context.cpp.

translate()

QString Context::translate	(	const char *	context,
		const char *	sourceText,
		const char *	disambiguation = nullptr,
		int	n = -1
	)		const

Translates the sourceText for the given context into the language defined by locale().

See Application::addTranslator() for information about installation of translators. Internally this function will use QTranslator::translate().

void MyController::index(Context *c)
{
     c->res()->setBody(c->translate("MyController", "You are on the index page."));
}

See also

Translate your application

Definition at line 484 of file context.cpp.

Referenced by Cutelyst::ValidatorAfter::genericParsingError(), Cutelyst::ValidatorBefore::genericParsingError(), Cutelyst::ValidatorDate::genericValidationError(), Cutelyst::ValidatorDateTime::genericValidationError(), Cutelyst::ValidatorDifferent::genericValidationError(), Cutelyst::ValidatorSame::genericValidationError(), Cutelyst::ValidatorTime::genericValidationError(), Cutelyst::ValidatorRule::label(), Cutelyst::ValidatorRule::parsingError(), Cutelyst::ValidatorRule::validationDataError(), and Cutelyst::ValidatorRule::validationError().

uriFor() [1/4]

QUrl Cutelyst::Context::uriFor ( Action *  action, const ParamsMultiMap &  queryValues  ) const

inline

Constructs an absolute QUrl object based on the application root, the provided action and the query parameters queryValues provided. When used as a string, provides a textual URI.

Definition at line 646 of file context.h.

uriFor() [2/4]

QUrl Context::uriFor	(	Action *	action,
		const QStringList &	captures = {},
		const QStringList &	args = {},
		const ParamsMultiMap &	queryValues = {}
	)		const

Constructs an absolute QUrl object based on the application root, the provided action, captures, arguments args and query parameters queryValues. When used as a string, provides a textual URI.

If action is a nullptr, the URI for the current action is returned. To return the current action and also provide args, use c->uriFor(c->action(), args).

Definition at line 278 of file context.cpp.

References action, QList::append(), QString::isEmpty(), Cutelyst::Action::numberOfCaptures(), QList::size(), QList::takeFirst(), and uriFor().

uriFor() [3/4]

QUrl Cutelyst::Context::uriFor ( const QString &  path, const ParamsMultiMap &  queryValues  ) const

inline

Constructs an absolute QUrl object based on the application root, the provided path and the query parameters queryValues provided. When used as a string, provides a textual URI.

The first argument is taken as a public URI path relative c->ns() (if it doesn’t begin with a forward slash) or relative to the application root (if it does). It is then merged with c->request()->base() and any queryValues are appended as "?foo=bar" parameters.

Definition at line 641 of file context.h.

uriFor() [4/4]

QUrl Context::uriFor	(	const QString &	path = {},
		const QStringList &	args = {},
		const ParamsMultiMap &	queryValues = {}
	)		const

Constructs an absolute QUrl object based on the application root, the provided path, and the additional arguments args and query parameters queryValues provided. When used as a string, provides a textual URI.

The first argument is taken as a public URI path relative c->ns() (if it doesn’t begin with a forward slash) or relative to the application root (if it does). It is then merged with c->request()->base() any args are appended as additional path components; and any queryValues are appended as "?foo=bar" parameters.

Definition at line 230 of file context.cpp.

References QUrlQuery::addQueryItem(), QString::compare(), QMultiMap::constBegin(), QMultiMap::constEnd(), QUrl::DecodedMode, QList::isEmpty(), QMultiMap::isEmpty(), QString::isEmpty(), QStringList::join(), QString::prepend(), QUrl::setPath(), QUrl::setQuery(), QMultiMap::size(), and QString::startsWith().

Referenced by uriFor(), and uriForAction().

uriForAction() [1/2]

QUrl Cutelyst::Context::uriForAction ( QStringView  path, const ParamsMultiMap &  queryValues  ) const

inline

A convenience method for the uriForAction() without the arguments parameter.

Definition at line 651 of file context.h.

uriForAction() [2/2]

QUrl Context::uriForAction	(	QStringView	path,
		const QStringList &	captures = {},
		const QStringList &	args = {},
		const ParamsMultiMap &	queryValues = {}
	)		const

A private path to the Cutelyst action you want to create a URI for.

This is a shortcut for calling c->dispatcher()->getActionByPath(path) and passing the resulting action and the remaining arguments to c->uriFor().

Note that although the path looks like a URI that dispatches to the wanted action, it is not a URI, but an internal path to that action.

For example, if the action looks like:

class Users : public Cutelyst::Controller
{
public:
  C_ATTR(lst, :Path(the-list))
  void lst(Context *c);
};

You can use: c->uriForAction('/users/lst'); and it will create the URI /users/the-list.

Definition at line 315 of file context.cpp.

References action, and uriFor().

view()

View * Context::view

(

QStringView

name = {}

)

const

Returns the View with name or nullptr if not found.

Definition at line 169 of file context.cpp.

Friends And Related Symbol Documentation

Action

friend class Action

friend

Definition at line 628 of file context.h.

ActionChain

friend class ActionChain

friend

Definition at line 629 of file context.h.

Application

friend class Application

friend

Definition at line 627 of file context.h.

Async

friend class Async

friend

Definition at line 634 of file context.h.

Controller

friend class Controller

friend

Definition at line 633 of file context.h.

DispatchType

friend class DispatchType

friend

Definition at line 630 of file context.h.

Engine

friend class Engine

friend

Definition at line 632 of file context.h.

Plugin

friend class Plugin

friend

Definition at line 631 of file context.h.

Property Documentation

action

Action * Cutelyst::Context::action

read

Pointer to the current action.

Definition at line 47 of file context.h.

Referenced by Cutelyst::Controller::_DISPATCH(), attachAsync(), detach(), Cutelyst::Dispatcher::dispatch(), forward(), forward(), getAction(), getActions(), Cutelyst::DispatchTypePath::match(), Cutelyst::CuteleeView::render(), Cutelyst::DispatchType::setupMatchedAction(), uriFor(), and uriForAction().

actionName

QString Cutelyst::Context::actionName

read

Private name of the current action

Definition at line 51 of file context.h.

Referenced by Cutelyst::ValidatorRule::debugString(), and Cutelyst::ValidatorRule::defaultValue().

config

QVariantMap Cutelyst::Context::config

read

Mapping for all configuration entries read from the Cutelyst configuration section.

See also

Configure your application

Definition at line 86 of file context.h.

controller

Controller * Cutelyst::Context::controller

read

The current controller.

Definition at line 75 of file context.h.

controllerName

QString Cutelyst::Context::controllerName

read

The current controller name.

Definition at line 79 of file context.h.

Referenced by Cutelyst::ValidatorRule::debugString(), and Cutelyst::ValidatorRule::defaultValue().

namespace

QString Cutelyst::Context::namespace

read

The namespace of the current action.

See also

ns()

Definition at line 61 of file context.h.

ns

QString Cutelyst::Context::ns

read

The namespace of the current action.

See also

ns()

Definition at line 56 of file context.h.

Referenced by getAction(), and getActions().

req

Request * Cutelyst::Context::req

read

The current Request object containing information about the client request.

Definition at line 66 of file context.h.

Referenced by Context(), Cutelyst::Component::aroundExecute(), Cutelyst::CSRFProtection::checkPassed(), Cutelyst::Dispatcher::dispatch(), Cutelyst::RenderView::doExecute(), Cutelyst::LangSelect::fromPath(), and Cutelyst::Validator::validate().

request

Request * Cutelyst::Context::request

read

The current Request object containing information about the client request.

Definition at line 71 of file context.h.

Referenced by Cutelyst::CredentialHttp::authenticate(), Cutelyst::Action::doExecute(), Cutelyst::ActionChain::doExecute(), Cutelyst::ActionREST::doExecute(), Cutelyst::Dispatcher::forward(), Cutelyst::UA::forwardAsync(), Cutelyst::UA::forwardRequestResponse(), Cutelyst::StatusMessage::load(), Cutelyst::DispatchTypeChained::match(), Cutelyst::DispatchTypePath::match(), Cutelyst::Dispatcher::prepareAction(), and Cutelyst::ViewJson::render().

state

bool Cutelyst::Context::state

read

Holds the return value of the last executed action.

Definition at line 90 of file context.h.