cutelyst  4.5.1
A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework.
Cutelyst::Action Class Reference

This class represents a Cutelyst Action. More...

#include <Cutelyst/Action>

Inheritance diagram for Cutelyst::Action:

Public Member Functions

 Action (QObject *parent=nullptr)
 
virtual ~Action () override=default
 
QString attribute (const QString &name, const QString &defaultValue={}) const
 
ParamsMultiMap attributes () const noexcept
 
QString className () const noexcept
 
Controllercontroller () const noexcept
 
bool dispatch (Context *c)
 
virtual bool match (int numberOfArgs) const noexcept
 
virtual bool matchCaptures (int numberOfCaptures) const noexcept
 
virtual Modifiers modifiers () const override
 
QString ns () const noexcept
 
virtual qint8 numberOfArgs () const
 
virtual qint8 numberOfCaptures () const
 
void setAttributes (const ParamsMultiMap &attributes)
 
- Public Member Functions inherited from Cutelyst::Component
 Component (QObject *parent=nullptr)
 
virtual ~Component () override
 
bool execute (Context *c)
 
virtual bool init (Application *application, const QVariantHash &args)
 
QString name () const noexcept
 
QString reverse () const noexcept
 
void setName (const QString &name)
 
void setReverse (const QString &reverse)
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
QBindable< QStringbindableObjectName ()
 
bool blockSignals (bool block)
 
const QObjectListchildren () 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< QByteArraydynamicPropertyNames () const const
 
virtual bool event (QEvent *e)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
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 QMetaObjectmetaObject () const const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const const
 
void objectNameChanged (const QString &objectName)
 
QObjectparent () const const
 
QVariant property (const char *name) const const
 
 Q_CLASSINFO (Name, Value)
 
 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
 
qobject_cast (const QObject *object)
 
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 setProperty (const char *name, QVariant &&value)
 
bool signalsBlocked () const const
 
int startTimer (int interval, Qt::TimerType timerType)
 
int startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
 
QThreadthread () const const
 

Protected Member Functions

 Action (ActionPrivate *ptr, QObject *parent=nullptr)
 
bool doExecute (Context *c) override
 
void setController (Controller *controller)
 
void setMethod (const QMetaMethod &method)
 
void setupAction (const QVariantHash &args, Application *app)
 
- Protected Member Functions inherited from Cutelyst::Component
 Component (ComponentPrivate *d, QObject *parent=nullptr)
 
virtual bool afterExecute (Context *c)
 
void applyRoles (const QStack< Component * > &roles)
 
virtual bool aroundExecute (Context *c, QStack< Component * > stack)
 
virtual bool beforeExecute (Context *c)
 
virtual bool dispatcherReady (const Dispatcher *dispatch, Controller *controller)
 
- 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
 
QObjectsender () const const
 
int senderSignalIndex () const const
 
virtual void timerEvent (QTimerEvent *event)
 

Friends

class ControllerPrivate
 
class Dispatcher
 

Additional Inherited Members

- Public Types inherited from Cutelyst::Component
enum  Modifier {
  None , OnlyExecute , BeforeExecute , AroundExecute ,
  AfterExecute
}
 
- 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
 
- Properties inherited from QObject
 objectName
 

Detailed Description

This class represents a Cutelyst Action.

It encapsulates a Controller method that was defined with C_ATTR() macro, it’s usually automatically created by Controller using it’s introspection information. This class allows Cutelyst to call a Controller method.

You can access the object for the currently dispatched action via c->action(). See the Dispatcher for more information on how actions are dispatched.

Definition at line 34 of file action.h.

Constructor & Destructor Documentation

◆ Action() [1/2]

Action::Action ( QObject parent = nullptr)
explicit

Constructs an Action object with the given parent.

Definition at line 12 of file action.cpp.

◆ ~Action()

virtual Cutelyst::Action::~Action ( )
overridevirtualdefault

Destroys the Action object.

◆ Action() [2/2]

Action::Action ( ActionPrivate *  ptr,
QObject parent = nullptr 
)
explicitprotected

A derived class using pimpl should call this constructor, to reduce the number of memory allocations.

Definition at line 17 of file action.cpp.

Member Function Documentation

◆ attribute()

QString Action::attribute ( const QString name,
const QString defaultValue = {} 
) const

Returns the value attribute by it’s name, if not found defaultValue is returned.

Attributes can be defined using the C_ATTR macro on Controller’s method declaration.

Definition at line 74 of file action.cpp.

References Cutelyst::Component::name().

Referenced by Cutelyst::DispatchTypeChained::expandAction(), and Cutelyst::DispatchTypePath::list().

◆ attributes()

ParamsMultiMap Action::attributes ( ) const
noexcept

◆ className()

QString Action::className ( ) const
noexcept

Returns the name of the component where this action is defined.

Definition at line 86 of file action.cpp.

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

◆ controller()

Controller * Action::controller ( ) const
noexcept

Returns the controller where this action is defined.

Definition at line 92 of file action.cpp.

Referenced by Cutelyst::Dispatcher::dispatch(), and setController().

◆ dispatch()

bool Cutelyst::Action::dispatch ( Context c)
inline

Dispatch this action against context c.

Definition at line 88 of file action.h.

Referenced by Cutelyst::Controller::_DISPATCH(), Cutelyst::ActionChain::doExecute(), and Cutelyst::Dispatcher::forward().

◆ doExecute()

bool Action::doExecute ( Context c)
overrideprotectedvirtual

◆ match()

bool Action::match ( int  numberOfArgs) const
virtualnoexcept

Check Args attribute, and makes sure number of args matches the setting. Always returns true if Args is omitted.

Definition at line 98 of file action.cpp.

◆ matchCaptures()

bool Action::matchCaptures ( int  numberOfCaptures) const
virtualnoexcept

Can be implemented by action class and action role authors. If the method exists, then it will be called with the request context and an array reference of the captures for this action.

Returning true from this method causes the chain match to continue, returning false makes the chain not match (and alternate, less preferred chains will be attempted).

Definition at line 108 of file action.cpp.

◆ modifiers()

Component::Modifiers Action::modifiers ( ) const
overridevirtual

Always returns Component::OnlyExecute.

Reimplemented from Cutelyst::Component.

Definition at line 22 of file action.cpp.

◆ ns()

QString Action::ns ( ) const
noexcept

Returns the private namespace this action lives in.

Definition at line 118 of file action.cpp.

◆ numberOfArgs()

qint8 Action::numberOfArgs ( ) const
virtual

Returns the number of args this action expects. This is 0 if the action doesn’t take any arguments and undef if it will take any number of arguments.

Definition at line 124 of file action.cpp.

Referenced by Cutelyst::DispatchTypePath::list(), and Cutelyst::DispatchTypePath::match().

◆ numberOfCaptures()

qint8 Action::numberOfCaptures ( ) const
virtual

Returns the number of captures this action expects for Chained actions.

Reimplemented in Cutelyst::ActionChain.

Definition at line 130 of file action.cpp.

Referenced by Cutelyst::ActionChain::doExecute(), Cutelyst::DispatchTypeChained::list(), Cutelyst::Context::uriFor(), and Cutelyst::DispatchTypeChained::uriForAction().

◆ setAttributes()

void Action::setAttributes ( const ParamsMultiMap attributes)

Defines the action’s attibutes that were defined using the C_ATTR macro on Controller’s method declaration.

Definition at line 80 of file action.cpp.

References attributes().

Referenced by Cutelyst::ActionChain::ActionChain(), and Cutelyst::DispatchTypeChained::registerAction().

◆ setController()

void Action::setController ( Controller controller)
protected

Sets the controller which this action belongs to.

Definition at line 40 of file action.cpp.

References controller().

Referenced by Cutelyst::ActionChain::ActionChain().

◆ setMethod()

void Action::setMethod ( const QMetaMethod method)
protected

Sets the method to be invoked by this action.

Definition at line 27 of file action.cpp.

References QMetaType::Bool, QMetaMethod::parameterCount(), QMetaMethod::parameterType(), QMetaType::QStringList, and QMetaMethod::returnType().

◆ setupAction()

void Action::setupAction ( const QVariantHash &  args,
Application app 
)
protected

Called by dispatcher to setup the action.

Definition at line 46 of file action.cpp.

References attributes(), Cutelyst::Component::init(), QString::isEmpty(), QString::toInt(), and QMultiMap::value().

Referenced by Cutelyst::ActionChain::ActionChain().