Wt  4.6.1
Public Member Functions | Protected Member Functions | Private Member Functions | List of all members
Wt::Form::Dbo::FormView< C > Class Template Reference

A view class to represent database objects. More...

#include <Wt/Form/Dbo/FormView.h>

Inheritance diagram for Wt::Form::Dbo::FormView< C >:
Inheritance graph
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Public Member Functions

 FormView (const Wt::WString &text)
 Constructor. More...
 
void setFormModel (std::shared_ptr< FormModel< C >> model)
 Sets the form model. More...
 
void setFormDelegate (Wt::WFormModel::Field field, std::shared_ptr< Wt::Form::WAbstractFormDelegate > delegate)
 Sets a custom form delegate. More...
 
void updateModelValue (Wt::WFormModel *model, Wt::WFormModel::Field field, Wt::WFormWidget *edit) override
 Updates a value in the Model. More...
 
bool updateModelValue (Wt::WFormModel *model, Wt::WFormModel::Field field, Wt::WWidget *edit) override
 Updates a value in the Model. More...
 
void updateViewValue (Wt::WFormModel *model, Wt::WFormModel::Field field, Wt::WFormWidget *edit) override
 Updates a value in the View. More...
 
bool updateViewValue (Wt::WFormModel *model, Wt::WFormModel::Field field, Wt::WWidget *edit) override
 Updates a value in the View. More...
 
void save ()
 Saves the data to database. More...
 
- Public Member Functions inherited from Wt::WTemplateFormView
 WTemplateFormView ()
 Constructor. More...
 
 WTemplateFormView (const WString &text)
 Constructor. More...
 
void setFormWidget (WFormModel::Field field, std::unique_ptr< WWidget > widget)
 Sets the form widget for a given field. More...
 
void setFormWidget (WFormModel::Field field, std::unique_ptr< WWidget > widget, const std::function< void()> &updateViewValue, const std::function< void()> &updateModelValue)
 Sets the form widget for a given field. More...
 
virtual void updateView (WFormModel *model)
 Updates the View. More...
 
virtual void updateViewField (WFormModel *model, WFormModel::Field field)
 Creates or updates a field in the View. More...
 
virtual void updateModel (WFormModel *model)
 Updates the Model. More...
 
virtual void updateModelField (WFormModel *model, WFormModel::Field field)
 Updates a field in the Model. More...
 
- Public Member Functions inherited from Wt::WTemplate
 WTemplate ()
 Creates a template widget.
 
 WTemplate (const WString &text)
 Creates a template widget with given template. More...
 
virtual WString templateText () const
 Returns the template. More...
 
void setTemplateText (const WString &text, TextFormat textFormat=TextFormat::XHTML)
 Sets the template text. More...
 
void setWidgetIdMode (TemplateWidgetIdMode mode)
 Sets how the varName should be reflected on bound widgets. More...
 
TemplateWidgetIdMode widgetIdMode () const
 Returns how the varName is reflected on a bound widget. More...
 
virtual void bindString (const std::string &varName, const WString &value, TextFormat textFormat=TextFormat::XHTML)
 Binds a string value to a variable. More...
 
void bindInt (const std::string &varName, int value)
 Binds an integer value to a variable. More...
 
virtual void bindWidget (const std::string &varName, std::unique_ptr< WWidget > widget)
 Binds a widget to a variable. More...
 
template<typename Widget >
Widget * bindWidget (const std::string &varName, std::unique_ptr< Widget > widget)
 Binds a widget to a variable, returning a raw pointer. More...
 
template<typename Widget , typename ... Args>
Widget * bindNew (const std::string &varName, Args &&...args)
 Creates a new widget with the given arguments, and binds it, returning a raw pointer. More...
 
std::unique_ptr< WWidgetremoveWidget (const std::string &varName)
 Unbinds a widget by variable name. More...
 
virtual std::unique_ptr< WWidgetremoveWidget (WWidget *widget) override
 Unbinds a widget by widget pointer. More...
 
void bindEmpty (const std::string &varName)
 Binds an empty string to a variable. More...
 
void addFunction (const std::string &name, const Function &function)
 Binds a function. More...
 
void setCondition (const std::string &name, bool value)
 Sets a condition. More...
 
virtual bool conditionValue (const std::string &name) const
 Returns a condition value. More...
 
std::set< std::string > conditionsSet ()
 Returns the set of conditions set to true.
 
virtual void resolveString (const std::string &varName, const std::vector< WString > &args, std::ostream &result)
 Resolves the string value for a variable name. More...
 
virtual void handleUnresolvedVariable (const std::string &varName, const std::vector< WString > &args, std::ostream &result)
 Handles a variable that could not be resolved. More...
 
virtual WWidgetresolveWidget (const std::string &varName)
 Resolves a widget for a variable name. More...
 
virtual bool resolveFunction (const std::string &name, const std::vector< WString > &args, std::ostream &result)
 Resolves a function call. More...
 
template<typename T >
resolve (const std::string &varName)
 Returns a widget for a variable name. More...
 
virtual void clear ()
 Erases all variable bindings. More...
 
void setInternalPathEncoding (bool enabled)
 Enables internal path anchors in the XHTML template. More...
 
bool hasInternalPathEncoding () const
 Returns whether internal paths are enabled. More...
 
void setEncodeTemplateText (bool on)
 Configures when internal path encoding is done. More...
 
bool encodeTemplateText () const
 Returns whether internal path encoding is done on the template text. More...
 
virtual void refresh () override
 Refresh the widget. More...
 
virtual void renderTemplate (std::ostream &result)
 Renders the template into the given result stream. More...
 
bool renderTemplateText (std::ostream &result, const WString &templateText)
 Renders a template into the given result stream. More...
 
std::string getErrorText ()
 Renders the errors during renderring. More...
 
- Public Member Functions inherited from Wt::WInteractWidget
 WInteractWidget ()
 Create an InteractWidget.
 
EventSignal< WKeyEvent > & keyWentDown ()
 Event signal emitted when a keyboard key is pushed down. More...
 
EventSignal< WKeyEvent > & keyPressed ()
 Event signal emitted when a "character" was entered. More...
 
EventSignal< WKeyEvent > & keyWentUp ()
 Event signal emitted when a keyboard key is released. More...
 
EventSignalenterPressed ()
 Event signal emitted when enter was pressed. More...
 
EventSignalescapePressed ()
 Event signal emitted when escape was pressed. More...
 
EventSignal< WMouseEvent > & clicked ()
 Event signal emitted when the primary mouse button was clicked on this widget. More...
 
EventSignal< WMouseEvent > & doubleClicked ()
 Event signal emitted when the primary mouse button was double clicked on this widget. More...
 
EventSignal< WMouseEvent > & mouseWentDown ()
 Event signal emitted when a mouse button was pushed down on this widget. More...
 
EventSignal< WMouseEvent > & mouseWentUp ()
 Event signal emitted when a mouse button was released on this widget. More...
 
EventSignal< WMouseEvent > & mouseWentOut ()
 Event signal emitted when the mouse went out of this widget. More...
 
EventSignal< WMouseEvent > & mouseWentOver ()
 Event signal emitted when the mouse entered this widget. More...
 
EventSignal< WMouseEvent > & mouseMoved ()
 Event signal emitted when the mouse moved over this widget. More...
 
EventSignal< WMouseEvent > & mouseDragged ()
 Event signal emitted when the mouse is dragged over this widget. More...
 
EventSignal< WMouseEvent > & mouseWheel ()
 Event signal emitted when the mouse scroll wheel was used. More...
 
EventSignal< WTouchEvent > & touchStarted ()
 Event signal emitted when a finger is placed on the screen. More...
 
EventSignal< WTouchEvent > & touchEnded ()
 Event signal emitted when a finger is removed from the screen. More...
 
EventSignal< WTouchEvent > & touchMoved ()
 Event signal emitted when a finger, which is already placed on the screen, is moved across the screen. More...
 
EventSignal< WGestureEvent > & gestureStarted ()
 Event signal emitted when a gesture is started. More...
 
EventSignal< WGestureEvent > & gestureChanged ()
 Event signal emitted when a gesture is changed. More...
 
EventSignal< WGestureEvent > & gestureEnded ()
 Event signal emitted when a gesture is ended. More...
 
void setDraggable (const std::string &mimeType, WWidget *dragWidget=nullptr, bool isDragWidgetOnly=false, WObject *sourceWidget=nullptr)
 Configure dragging for drag and drop. More...
 
void unsetDraggable ()
 Disable drag & drop for this widget. More...
 
void setMouseOverDelay (int delay)
 Sets a delay for the mouse over event. More...
 
int mouseOverDelay () const
 Returns the mouse over signal delay. More...
 
virtual void setPopup (bool popup) override
 Lets the widget overlay over other sibling widgets. More...
 
virtual void load () override
 Loads content just before the widget is used. More...
 
virtual bool isEnabled () const override
 Returns whether the widget is enabled. More...
 
- Public Member Functions inherited from Wt::WWebWidget
 WWebWidget ()
 Construct a WebWidget.
 
virtual std::vector< WWidget * > children () const override
 Returns child widgets. More...
 
SignalchildrenChanged ()
 Signal emitted when children have been added or removed. More...
 
virtual void setPositionScheme (PositionScheme scheme) override
 Sets the CSS position scheme. More...
 
virtual PositionScheme positionScheme () const override
 Returns the CSS position scheme. More...
 
virtual void setOffsets (const WLength &offset, WFlags< Side > sides=AllSides) override
 Sets CSS offsets for a non-statically positioned widget. More...
 
virtual WLength offset (Side s) const override
 Returns a CSS offset. More...
 
virtual void resize (const WLength &width, const WLength &height) override
 Resizes the widget. More...
 
virtual WLength width () const override
 Returns the width. More...
 
virtual WLength height () const override
 Returns the height. More...
 
virtual void setMinimumSize (const WLength &width, const WLength &height) override
 Sets a minimum size. More...
 
virtual WLength minimumWidth () const override
 Returns the minimum width. More...
 
virtual WLength minimumHeight () const override
 Returns the minimum height. More...
 
virtual void setMaximumSize (const WLength &width, const WLength &height) override
 Sets a maximum size. More...
 
virtual WLength maximumWidth () const override
 Returns the maximum width. More...
 
virtual WLength maximumHeight () const override
 Returns the maximum height. More...
 
virtual void setLineHeight (const WLength &height) override
 Sets the CSS line height for contained text.
 
virtual WLength lineHeight () const override
 Returns the CSS line height for contained text. More...
 
virtual void setFloatSide (Side s) override
 Specifies a CSS float side. More...
 
virtual Side floatSide () const override
 Returns the CSS float side. More...
 
virtual void setClearSides (WFlags< Side > sides) override
 Sets the sides that should be cleared of floats. More...
 
virtual WFlags< SideclearSides () const override
 Returns the sides that should remain empty. More...
 
virtual void setMargin (const WLength &margin, WFlags< Side > sides=AllSides) override
 Sets CSS margins around the widget. More...
 
virtual WLength margin (Side side) const override
 Returns a CSS margin set. More...
 
virtual void setHiddenKeepsGeometry (bool enabled) override
 Sets whether the widget keeps its geometry when hidden. More...
 
virtual bool hiddenKeepsGeometry () const override
 Returns whether the widget keeps its geometry when hidden. More...
 
virtual void setHidden (bool hidden, const WAnimation &animation=WAnimation()) override
 Hides or shows the widget. More...
 
virtual bool isHidden () const override
 Returns whether the widget is set hidden. More...
 
virtual bool isVisible () const override
 Returns whether the widget is visible. More...
 
virtual void setDisabled (bool disabled) override
 Sets whether the widget is disabled. More...
 
virtual bool isDisabled () const override
 Returns whether the widget is set disabled. More...
 
virtual bool isPopup () const override
 Returns whether the widget is overlayed. More...
 
virtual void setInline (bool isInline) override
 Sets whether the widget is displayed inline or as a block. More...
 
virtual bool isInline () const override
 Returns whether the widget is displayed inline or as block. More...
 
virtual void setDecorationStyle (const WCssDecorationStyle &style) override
 Sets a CSS decoration style. More...
 
virtual WCssDecorationStyledecorationStyle () override
 Returns the decoration style of this widget. More...
 
virtual void setStyleClass (const WString &styleClass) override
 Sets (one or more) CSS style classes. More...
 
virtual WString styleClass () const override
 Returns the CSS style class. More...
 
virtual void addStyleClass (const WString &styleClass, bool force=false) override
 Adds a CSS style class. More...
 
virtual void removeStyleClass (const WString &styleClass, bool force=false) override
 Removes a CSS style class. More...
 
virtual bool hasStyleClass (const WString &styleClass) const override
 Returns whether the widget has a style class.
 
virtual void setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength()) override
 Sets the vertical alignment. More...
 
virtual AlignmentFlag verticalAlignment () const override
 Returns the vertical alignment. More...
 
virtual WLength verticalAlignmentLength () const override
 Returns the fixed vertical alignment that was set. More...
 
virtual void setToolTip (const WString &text, TextFormat textFormat=TextFormat::Plain) override
 Sets a tooltip. More...
 
virtual void setDeferredToolTip (bool enable, TextFormat textFormat=TextFormat::Plain) override
 Enable deferred tooltip. More...
 
virtual WString toolTip () const override
 Returns the tooltip.
 
virtual void setAttributeValue (const std::string &name, const WString &value) override
 Sets an attribute value. More...
 
virtual WString attributeValue (const std::string &name) const override
 Returns an attribute value. More...
 
virtual void setJavaScriptMember (const std::string &name, const std::string &value) override
 Sets a JavaScript member. More...
 
virtual std::string javaScriptMember (const std::string &name) const override
 Returns the value of a JavaScript member. More...
 
virtual void callJavaScriptMember (const std::string &name, const std::string &args) override
 Calls a JavaScript member. More...
 
virtual bool loaded () const override
 Returns whether this widget has been loaded. More...
 
virtual void setId (const std::string &id) override
 Sets the CSS Id. More...
 
virtual WWidgetfind (const std::string &name) override
 Finds a descendent widget by name. More...
 
virtual WWidgetfindById (const std::string &id) override
 Finds a descendent widget by id.
 
virtual void setSelectable (bool selectable) override
 Sets as selectable. More...
 
virtual void doJavaScript (const std::string &javascript) override
 Executes the given JavaScript statements when the widget is rendered or updated. More...
 
virtual const std::string id () const override
 Returns the (unique) identifier for this object. More...
 
void setLoadLaterWhenInvisible (bool)
 Change the way the widget is loaded when invisible. More...
 
std::string htmlTagName () const
 returns the current html tag name More...
 
void setHtmlTagName (const std::string &tag)
 set the custom HTML tag name More...
 
virtual void setCanReceiveFocus (bool enabled) override
 Sets whether the widget can receive focus. More...
 
virtual bool canReceiveFocus () const override
 Returns whether the widget can receive focus. More...
 
virtual bool setFirstFocus () override
 Set focus on the widget's first descendant. More...
 
virtual void setFocus (bool focus) override
 Sets focus. More...
 
virtual bool hasFocus () const override
 Returns whether the widget currently has the focus.
 
virtual void setTabIndex (int index) override
 Sets the tab index. More...
 
virtual int tabIndex () const override
 Returns the tab index. More...
 
EventSignalblurred ()
 Signal emitted when the widget lost focus. More...
 
EventSignalfocussed ()
 Signal emitted when the widget recieved focus. More...
 
virtual bool scrollVisibilityEnabled () const final override
 Returns whether scroll visibility detection is enabled for this widget. More...
 
virtual void setScrollVisibilityEnabled (bool enabled) final override
 Sets whether scroll visibility detection is enabled for this widget. More...
 
virtual int scrollVisibilityMargin () const final override
 Returns the margin around the viewport within which the widget is considered visible. More...
 
virtual void setScrollVisibilityMargin (int margin) final override
 Sets the margin around the viewport within which the widget is considered visible. More...
 
virtual Signal< bool > & scrollVisibilityChanged () final override
 Signal triggered when the scroll visibility of this widget changes. More...
 
virtual bool isScrollVisible () const final override
 Returns whether this widget is currently considered scroll visible. More...
 
virtual void setThemeStyleEnabled (bool enabled) final override
 Sets whether theme styling for a widget is enabled or disabled. More...
 
virtual bool isThemeStyleEnabled () const final override
 Returns whether this widget is currently styled by the chosen theme. More...
 
virtual void setObjectName (const std::string &name) override
 Sets an object name. More...
 
- Public Member Functions inherited from Wt::WWidget
virtual ~WWidget ()
 Destructor. More...
 
WWidgetparent () const
 Returns the parent widget.
 
template<typename Widget >
std::unique_ptr< Widget > removeWidget (Widget *widget)
 Removes a child widget. More...
 
std::unique_ptr< WWidgetremoveFromParent ()
 Removes the widget from its parent. More...
 
void setWidth (const WLength &width)
 Sets the width. More...
 
void setHeight (const WLength &height)
 Sets the height. More...
 
virtual void positionAt (const WWidget *widget, Orientation orientation=Orientation::Vertical)
 Positions a widget next to another widget. More...
 
virtual void toggleStyleClass (const WString &styleClass, bool add, bool force=false)
 Toggles a CSS style class.
 
std::string jsRef () const
 Returns a JavaScript expression to the corresponding DOM node. More...
 
void setFocus ()
 Sets focus. More...
 
virtual void acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString())
 Sets a mime type to be accepted for dropping. More...
 
virtual void stopAcceptDrops (const std::string &mimeType)
 Indicates that a mime type is no longer accepted for dropping. More...
 
virtual void htmlText (std::ostream &out)
 Streams the (X)HTML representation. More...
 
bool isRendered () const
 Returns whether the widget is rendered. More...
 
void hide ()
 Hides the widget. More...
 
void animateHide (const WAnimation &animation)
 Hides the widget using an animation. More...
 
void show ()
 Shows the widget. More...
 
void animateShow (const WAnimation &animation)
 Shows the widget using an animation. More...
 
void enable ()
 Enables the widget. More...
 
void disable ()
 Disable thes widget. More...
 
bool layoutSizeAware () const
 Returns whether the widget is layout size aware. More...
 
- Public Member Functions inherited from Wt::WObject
void addChild (std::unique_ptr< WObject > child)
 Add a child WObject whose lifetime is determined by this WObject.
 
template<typename Child >
Child * addChild (std::unique_ptr< Child > child)
 Add a child WObject, returning a raw pointer. More...
 
std::unique_ptr< WObjectremoveChild (WObject *child)
 Remove a child WObject, so its lifetime is no longer determined by this WObject.
 
template<typename Child >
std::unique_ptr< Child > removeChild (Child *child)
 Remove a child WObject, so its lifetime is no longer determined by this WObject. More...
 
virtual std::string objectName () const
 Returns the object name. More...
 
void resetLearnedSlots ()
 Resets learned stateless slot implementations. More...
 
template<class T >
void resetLearnedSlot (void(T::*method)())
 Resets a learned stateless slot implementation. More...
 
template<class T >
WStatelessSlot * implementStateless (void(T::*method)())
 Declares a slot to be stateless and learn client-side behaviour on first invocation. More...
 
template<class T >
WStatelessSlot * implementStateless (void(T::*method)(), void(T::*undoMethod)())
 Declares a slot to be stateless and learn client-side behaviour in advance. More...
 
void isNotStateless ()
 Marks the current function as not stateless. More...
 
template<class T >
WStatelessSlot * implementJavaScript (void(T::*method)(), const std::string &jsCode)
 Provides a JavaScript implementation for a method. More...
 
- Public Member Functions inherited from Wt::Core::observable
 observable () noexcept
 Default constructor.
 
virtual ~observable ()
 Destructor. More...
 
template<typename... Args, typename C >
auto bindSafe (void(C::*method)(Args...)) noexcept
 Protects a method call against object destruction. More...
 
template<typename... Args, typename C >
auto bindSafe (void(C::*method)(Args...) const) const noexcept
 Protects a const method call against object destruction. More...
 
template<typename Function >
auto bindSafe (const Function &function) noexcept
 Protects a function against object destruction. More...
 

Protected Member Functions

virtual void customizeFormWidget (Wt::WFormModel::Field field, Wt::WWidget *widget)
 Customize the auto generate form widget. More...
 
virtual void customizeValidator (Wt::WFormModel::Field field, Wt::WValidator *validator)
 Customize the auto generated validator. More...
 
Wt::Signalsaved ()
 Signal emitted when form is saved
 
Wt::SignalvalidationFailed ()
 Signal emitted when validation failed More...
 
- Protected Member Functions inherited from Wt::WTemplateFormView
virtual std::unique_ptr< WWidgetcreateFormWidget (WFormModel::Field field)
 Creates a form widget. More...
 
virtual void indicateValidation (WFormModel::Field field, bool validated, WText *info, WWidget *edit, const WValidator::Result &validation)
 Indicates the validation result. More...
 
- Protected Member Functions inherited from Wt::WTemplate
virtual void applyArguments (WWidget *w, const std::vector< WString > &args)
 Applies arguments to a resolved widget. More...
 
void format (std::ostream &result, const std::string &s, TextFormat textFormat=TextFormat::Plain)
 Utility method to safely format an XHTML string. More...
 
void format (std::ostream &result, const WString &s, TextFormat textFormat=TextFormat::Plain)
 Utility method to safely format an XHTML string. More...
 
virtual void enableAjax () override
 Progresses to an Ajax-enabled widget. More...
 
void reset ()
 Notifies the template that it has changed and must be rerendered. More...
 
- Protected Member Functions inherited from Wt::WInteractWidget
virtual void propagateSetEnabled (bool enabled) override
 Propagates that a widget was enabled or disabled through children. More...
 
- Protected Member Functions inherited from Wt::WWebWidget
virtual WStatelessSlot * getStateless (Method method) override
 On-demand stateless slot implementation. More...
 
virtual void render (WFlags< RenderFlag > flags) override
 Renders the widget. More...
 
- Protected Member Functions inherited from Wt::WWidget
void setLayoutSizeAware (bool sizeAware)
 Sets the widget to be aware of its size set by a layout manager. More...
 
virtual void layoutSizeChanged (int width, int height)
 Virtual method that indicates a size change. More...
 
 WWidget ()
 Creates a widget.
 
virtual void dropEvent (WDropEvent dropEvent)
 Handles a drop event. More...
 
virtual int boxPadding (Orientation orientation) const
 Returns the widget's built-in padding. More...
 
virtual int boxBorder (Orientation orientation) const
 Returns the widget's built-in border width. More...
 
void scheduleRender (WFlags< RepaintFlag > flags=None)
 Schedules rerendering of the widget. More...
 

Private Member Functions

std::unique_ptr< Wt::WWidgetformWidget (Wt::WFormModel::Field field)
 Gets the widget generated by the form delegate.
 
std::shared_ptr< Wt::WValidatorvalidator (Wt::WFormModel::Field field)
 Gets the validator generated by the form delegate.
 
std::shared_ptr< Wt::Form::WAbstractFormDelegatedelegate (Wt::WFormModel::Field field)
 Gets the form deleate.
 

Additional Inherited Members

- Public Types inherited from Wt::WTemplate
typedef TemplateWidgetIdMode WidgetIdMode
 Typedef for enum Wt::TemplateWidgetIdMode.
 
typedef std::function< bool(WTemplate *t, const std::vector< WString > &args, std::ostream &result)> Function
 A function type. More...
 
- Public Types inherited from Wt::WObject
typedef void(WObject::* Method) ()
 Typedef for a WObject method without arguments.
 
- Static Public Member Functions inherited from Wt::WWebWidget
static std::string jsStringLiteral (const std::string &v, char delimiter='\'')
 Turn a CharEncoding::UTF8 encoded string into a JavaScript string literal. More...
 
- Static Public Member Functions inherited from Wt::WWidget
static WString tr (const char *key)
 Short hand for WString::tr() More...
 

Detailed Description

template<class C>
class Wt::Form::Dbo::FormView< C >

A view class to represent database objects.

This class takes the database object as a template argument. Instead of having to manually define all the widgets, the system will automatically generate default widgets based on the data type used in the database. For example: a WString object will by default be represented by a WLineEdit in the UI.

See also
FormModel

Constructor & Destructor Documentation

◆ FormView()

template<class C >
Wt::Form::Dbo::FormView< C >::FormView ( const Wt::WString text)
explicit

Constructor.

See also
WTemplateFormView

Member Function Documentation

◆ customizeFormWidget()

template<class C >
virtual void Wt::Form::Dbo::FormView< C >::customizeFormWidget ( Wt::WFormModel::Field  field,
Wt::WWidget widget 
)
protectedvirtual

Customize the auto generate form widget.

Allows derived classes to customize the automatically generated widget without having to customize an entire WFormDelegate.

For example: the default widget for WString objects is a WLineEdit. This method allows a derived class to set the input mask for a specific input field.

Base class implementation doesn't modify the widget

◆ customizeValidator()

template<class C >
virtual void Wt::Form::Dbo::FormView< C >::customizeValidator ( Wt::WFormModel::Field  field,
Wt::WValidator validator 
)
protectedvirtual

Customize the auto generated validator.

Allows derived classes to customize the automatically generated validator without having to customize an entire WFormDelegate.

For example: the default validator for integers is a WIntValidator. This method allows a derived class to specify the range for the validator.

Base class implementation doesn't modify the validator

◆ save()

template<class C >
void Wt::Form::Dbo::FormView< C >::save ( )

Saves the data to database.

First the data is validated. If the data in the model is valid, the data will be pushed to the database. If not, the validationFailed() signal will be emitted. On succesful save, the saved() signal will be emitted.

◆ setFormDelegate()

template<class C >
void Wt::Form::Dbo::FormView< C >::setFormDelegate ( Wt::WFormModel::Field  field,
std::shared_ptr< Wt::Form::WAbstractFormDelegate delegate 
)

Sets a custom form delegate.

Overrides the default delegate for a given field

Exceptions
WExceptionwhen this function is called after setFormModel

◆ setFormModel()

template<class C >
void Wt::Form::Dbo::FormView< C >::setFormModel ( std::shared_ptr< FormModel< C >>  model)

Sets the form model.

This method will automatically generate the form delegates and set the form widgets and model validators.

See also
customizeFormWidget, customizeValidator

◆ updateModelValue() [1/2]

template<class C >
void Wt::Form::Dbo::FormView< C >::updateModelValue ( Wt::WFormModel model,
Wt::WFormModel::Field  field,
Wt::WFormWidget edit 
)
overridevirtual

Updates a value in the Model.

The default implementation first calls updateModelValue(WFormModel *, WFormModel::Field, WWidget *). If that returns false, it will then call the updateModelValue function of WAbstractFormDelegate if there's a delegate defined for this field. If not, it will call the function of WTemplateFormView.

Reimplemented from Wt::WTemplateFormView.

◆ updateModelValue() [2/2]

template<class C >
bool Wt::Form::Dbo::FormView< C >::updateModelValue ( Wt::WFormModel model,
Wt::WFormModel::Field  field,
Wt::WWidget edit 
)
overridevirtual

Updates a value in the Model.

The default implementation calls the updateModelValue function of WAbstractFormDelegate if there's a delegate defined for this field. If not, it will call the function of WTemplateFormView.

Reimplemented from Wt::WTemplateFormView.

◆ updateViewValue() [1/2]

template<class C >
void Wt::Form::Dbo::FormView< C >::updateViewValue ( Wt::WFormModel model,
Wt::WFormModel::Field  field,
Wt::WFormWidget edit 
)
overridevirtual

Updates a value in the View.

The default implementation first calls updateViewValue(WFormModel *, WFormModel::Field, WWidget *). If that returns false, it will then call the updateViewValue function of WAbstractFormDelegate if there's a delegate defined for this field. If not, it will call the function of WTemplateFormView.

Reimplemented from Wt::WTemplateFormView.

◆ updateViewValue() [2/2]

template<class C >
bool Wt::Form::Dbo::FormView< C >::updateViewValue ( Wt::WFormModel model,
Wt::WFormModel::Field  field,
Wt::WWidget edit 
)
overridevirtual

Updates a value in the View.

The default implementation calls the updateViewValue function of WAbstractFormDelegate if there's a delegate defined for this field. If not, it will call the function of WTemplateFormView.

Reimplemented from Wt::WTemplateFormView.

◆ validationFailed()

template<class C >
Wt::Signal& Wt::Form::Dbo::FormView< C >::validationFailed ( )
protected

Signal emitted when validation failed

This can be emitted when saving the form. The save action will have failed because some fields are invalid.


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