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add constraint description

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pblottiere committed May 28, 2016
1 parent bffe308 commit 8449e42ae0b94cc40fa68d08a2790023043a58c8
@@ -492,6 +492,22 @@ class QgsEditFormConfig : QObject
*/
void setExpression( int idx, const QString& str );

/**
* Returns the constraint expression description of a specific filed.
* @param idx The index of the field
* @return the expression description
* @note added in QGIS 2.16
*/
QString expressionDescription( int idx ) const;

/**
* Set the constraint expression description for a specific field.
* @param idx The index of the field
* @param descr The description of the expression
* @note added in QGIS 2.16
*/
void setExpressionDescription( int idx, const QString &descr );

/**
* Returns if the field at fieldidx should be treated as NOT NULL value
*/
@@ -115,6 +115,7 @@ class QgsEditorWidgetWrapper : QgsWidgetWrapper
* Emit this signal when the constraint status changed.
* @brief constraintStatusChanged
* @param constraint represented as a string
* @param desc is the constraint description
* @param err the error represented as a string. Empty if none.
* @param status
*/
@@ -180,6 +180,16 @@ bool QgsAttributeTypeDialog::labelOnTop() const
return labelOnTopCheckBox->isChecked();
}

void QgsAttributeTypeDialog::setExpressionDescription( const QString &desc )
{
constraintExpressionDescription->setText( desc );
}

QString QgsAttributeTypeDialog::expressionDescription()
{
return constraintExpressionDescription->text();
}

bool QgsAttributeTypeDialog::notNull() const
{
return notNullCheckBox->isChecked();
@@ -85,7 +85,7 @@ class APP_EXPORT QgsAttributeTypeDialog: public QDialog, private Ui::QgsAttribut
bool fieldEditable() const;

/**
* Getter for checkbox for not null
* Setter for checkbox for not null
*/
void setNotNull( bool notNull );

@@ -94,6 +94,20 @@ class APP_EXPORT QgsAttributeTypeDialog: public QDialog, private Ui::QgsAttribut
*/
bool notNull() const;

/*
* Setter for constraint expression description
* @param desc the expression description
* @note added in QGIS 2.16
**/
void setExpressionDescription( const QString &desc );

/*
* Getter for constraint expression description
* @return the expression description
* @note added in QGIS 2.16
**/
QString expressionDescription();

/**
* Getter for the constraint expression
* @note added in QGIS 2.16
@@ -529,6 +529,7 @@ void QgsFieldsProperties::attributeTypeDialog()
attributeTypeDialog.setLabelOnTop( cfg.mLabelOnTop );
attributeTypeDialog.setNotNull( cfg.mNotNull );
attributeTypeDialog.setExpression( cfg.mConstraint );
attributeTypeDialog.setExpressionDescription( cfg.mConstraintDescription );

attributeTypeDialog.setWidgetV2Config( cfg.mEditorWidgetV2Config );
attributeTypeDialog.setWidgetV2Type( cfg.mEditorWidgetV2Type );
@@ -539,6 +540,7 @@ void QgsFieldsProperties::attributeTypeDialog()
cfg.mEditable = attributeTypeDialog.fieldEditable();
cfg.mLabelOnTop = attributeTypeDialog.labelOnTop();
cfg.mNotNull = attributeTypeDialog.notNull();
cfg.mConstraintDescription = attributeTypeDialog.expressionDescription();
cfg.mConstraint = attributeTypeDialog.expression();

cfg.mEditorWidgetV2Type = attributeTypeDialog.editorWidgetV2Type();
@@ -913,6 +915,7 @@ void QgsFieldsProperties::apply()
mLayer->editFormConfig()->setReadOnly( i, !cfg.mEditable );
mLayer->editFormConfig()->setLabelOnTop( i, cfg.mLabelOnTop );
mLayer->editFormConfig()->setNotNull( i, cfg.mNotNull );
mLayer->editFormConfig()->setExpressionDescription( i, cfg.mConstraintDescription );
mLayer->editFormConfig()->setExpression( i, cfg.mConstraint );

mLayer->editFormConfig()->setWidgetType( idx, cfg.mEditorWidgetV2Type );
@@ -981,6 +984,7 @@ QgsFieldsProperties::FieldConfig::FieldConfig()
, mEditableEnabled( true )
, mLabelOnTop( false )
, mNotNull( false )
, mConstraintDescription( QString() )
, mButton( nullptr )
{
}
@@ -994,6 +998,7 @@ QgsFieldsProperties::FieldConfig::FieldConfig( QgsVectorLayer* layer, int idx )
mLabelOnTop = layer->editFormConfig()->labelOnTop( idx );
mNotNull = layer->editFormConfig()->notNull( idx );
mConstraint = layer->editFormConfig()->expression( idx );
mConstraintDescription = layer->editFormConfig()->expressionDescription( idx );
mEditorWidgetV2Type = layer->editFormConfig()->widgetType( idx );
mEditorWidgetV2Config = layer->editFormConfig()->widgetConfig( idx );

@@ -94,6 +94,7 @@ class APP_EXPORT QgsFieldsProperties : public QWidget, private Ui_QgsFieldsPrope
bool mLabelOnTop;
bool mNotNull;
QString mConstraint;
QString mConstraintDescription;
QPushButton* mButton;
QString mEditorWidgetV2Type;
QMap<QString, QVariant> mEditorWidgetV2Config;
@@ -135,6 +135,22 @@ void QgsEditFormConfig::setExpression( int idx, const QString& str )
mConstraints[ mFields.at( idx ).name()] = str;
}

QString QgsEditFormConfig::expressionDescription( int idx ) const
{
QString description;

if ( idx >= 0 && idx < mFields.count() )
description = mConstraintsDescription[ mFields.at( idx ).name()];

return description;
}

void QgsEditFormConfig::setExpressionDescription( int idx, const QString &descr )
{
if ( idx >= 0 && idx < mFields.count() )
mConstraintsDescription[ mFields.at( idx ).name()] = descr;
}

bool QgsEditFormConfig::notNull( int idx ) const
{
if ( idx >= 0 && idx < mFields.count() )
@@ -484,12 +484,12 @@ class CORE_EXPORT QgsEditFormConfig : public QObject
QgsEditorWidgetConfig widgetConfig( const QString& widgetName ) const;

/**
* Remove the configuration for the editor widget used to represent the field at the given index
*
* @param fieldIdx The index of the field
*
* @return true if successful, false if the field does not exist
*/
* Remove the configuration for the editor widget used to represent the field at the given index
*
* @param fieldIdx The index of the field
*
* @return true if successful, false if the field does not exist
*/
bool removeWidgetConfig( int fieldIdx );

/**
@@ -528,6 +528,22 @@ class CORE_EXPORT QgsEditFormConfig : public QObject
*/
void setExpression( int idx, const QString& str );

/**
* Returns the constraint expression description of a specific filed.
* @param idx The index of the field
* @return the expression description
* @note added in QGIS 2.16
*/
QString expressionDescription( int idx ) const;

/**
* Set the constraint expression description for a specific field.
* @param idx The index of the field
* @param descr The description of the expression
* @note added in QGIS 2.16
*/
void setExpressionDescription( int idx, const QString &descr );

/**
* Returns if the field at fieldidx should be treated as NOT NULL value
*/
@@ -657,6 +673,7 @@ class CORE_EXPORT QgsEditFormConfig : public QObject
QList< TabData > mTabs;

QMap< QString, QString> mConstraints;
QMap< QString, QString> mConstraintsDescription;
QMap< QString, bool> mFieldEditables;
QMap< QString, bool> mLabelOnTop;
QMap< QString, bool> mNotNull;
@@ -253,6 +253,7 @@ void QgsEditorWidgetRegistry::readMapLayer( QgsMapLayer* mapLayer, const QDomEle
vectorLayer->editFormConfig()->setLabelOnTop( idx, ewv2CfgElem.attribute( "labelOnTop", "0" ) == "1" );
vectorLayer->editFormConfig()->setNotNull( idx, ewv2CfgElem.attribute( "notNull", "0" ) == "1" );
vectorLayer->editFormConfig()->setExpression( idx, ewv2CfgElem.attribute( "constraint", QString() ) );
vectorLayer->editFormConfig()->setExpressionDescription( idx, ewv2CfgElem.attribute( "constraintDescription", QString() ) );

vectorLayer->editFormConfig()->setWidgetConfig( idx, cfg );
}
@@ -312,6 +313,7 @@ void QgsEditorWidgetRegistry::writeMapLayer( QgsMapLayer* mapLayer, QDomElement&
ewv2CfgElem.setAttribute( "labelOnTop", vectorLayer->editFormConfig()->labelOnTop( idx ) );
ewv2CfgElem.setAttribute( "notNull", vectorLayer->editFormConfig()->notNull( idx ) );
ewv2CfgElem.setAttribute( "constraint", vectorLayer->editFormConfig()->expression( idx ) );
ewv2CfgElem.setAttribute( "constraintDescription", vectorLayer->editFormConfig()->expressionDescription( idx ) );

mWidgetFactories[widgetType]->writeConfig( vectorLayer->editFormConfig()->widgetConfig( idx ), ewv2CfgElem, doc, vectorLayer, idx );

@@ -108,10 +108,13 @@ void QgsEditorWidgetWrapper::updateConstraint( const QgsFeature &ft )
bool toEmit( false );
QString errStr( tr( "predicate is True" ) );
QString expression = layer()->editFormConfig()->expression( mFieldIdx );
QString description;
QVariant value = ft.attribute( mFieldIdx );

if ( ! expression.isEmpty() )
{
description = layer()->editFormConfig()->expressionDescription( mFieldIdx );

QgsExpressionContext context =
QgsExpressionContextUtils::createFeatureBasedContext( ft, *ft.fields() );
context << QgsExpressionContextUtils::layerScope( layer() );
@@ -139,9 +142,13 @@ void QgsEditorWidgetWrapper::updateConstraint( const QgsFeature &ft )
{
QString fieldName = ft.fields()->field( mFieldIdx ).name();
expression = "( " + expression + " ) AND ( " + fieldName + " IS NOT NULL)";
description = "( " + description + " ) AND NotNull";
}
else
{
description = "NotNull";
expression = "NotNull";
}

mValidConstraint = mValidConstraint && !value.isNull();

@@ -154,7 +161,7 @@ void QgsEditorWidgetWrapper::updateConstraint( const QgsFeature &ft )
if ( toEmit )
{
updateConstraintWidgetStatus();
emit constraintStatusChanged( expression, errStr, mValidConstraint );
emit constraintStatusChanged( expression, description, errStr, mValidConstraint );
}
}

@@ -137,10 +137,11 @@ class GUI_EXPORT QgsEditorWidgetWrapper : public QgsWidgetWrapper
* Emit this signal when the constraint status changed.
* @brief constraintStatusChanged
* @param constraint represented as a string
* @param desc is the constraint description
* @param err the error represented as a string. Empty if none.
* @param status
*/
void constraintStatusChanged( const QString& constraint, const QString& err, bool status );
void constraintStatusChanged( const QString& constraint, const QString &desc, const QString& err, bool status );

public slots:
/**
@@ -795,17 +795,26 @@ void QgsAttributeForm::clearInvalidConstraintsMessage()
}
}

void QgsAttributeForm::displayInvalidConstraintMessage( const QStringList &f )
void QgsAttributeForm::displayInvalidConstraintMessage( const QStringList &f,
const QStringList &d )
{
clearInvalidConstraintsMessage();

// show only the third first error
int max = 3;
int size = f.size() > max ? max : f.size();
QString descriptions;
for ( int i = 0; i < size; i++ )
descriptions += "<br />- " + f[i] + ": " + d[i];

mInvalidConstraintMessageBarItem =
new QgsMessageBarItem( tr( "Invalid fields:" ),
f.join( ", " ), QgsMessageBar::WARNING );
new QgsMessageBarItem( tr( "Invalid fields: " ),
descriptions, QgsMessageBar::WARNING );
mMessageBar->pushItem( mInvalidConstraintMessageBarItem );
}

bool QgsAttributeForm::currentFormValidConstraints( QStringList &invalidFields )
bool QgsAttributeForm::currentFormValidConstraints( QStringList &invalidFields,
QStringList &descriptions )
{
bool valid( true );

@@ -817,6 +826,10 @@ bool QgsAttributeForm::currentFormValidConstraints( QStringList &invalidFields )
if ( ! eww->isValidConstraint() )
{
invalidFields.append( eww->field().name() );

QString desc = eww->layer()->editFormConfig()->expressionDescription( eww->fieldIdx() );
descriptions.append( desc );

valid = false; // continue to get all invalif fields
}
}
@@ -883,7 +896,7 @@ void QgsAttributeForm::onUpdatedFields()
}

void QgsAttributeForm::onConstraintStatusChanged( const QString& constraint,
const QString& err, bool ok )
const QString &description, const QString& err, bool ok )
{
QgsEditorWidgetWrapper* eww = qobject_cast<QgsEditorWidgetWrapper*>( sender() );
Q_ASSERT( eww );
@@ -892,7 +905,8 @@ void QgsAttributeForm::onConstraintStatusChanged( const QString& constraint,

if ( buddy )
{
QString tooltip = tr( "Expression: " ) + constraint + "\n" + tr( "Constraint: " ) + err;
QString tooltip = tr( "Description: " ) + description + "\n" +
tr( "Raw expression: " ) + constraint + "\n" + tr( "Constraint: " ) + err;
buddy->setToolTip( tooltip );

if ( !buddy->property( "originalText" ).isValid() )
@@ -986,11 +1000,11 @@ void QgsAttributeForm::synchronizeEnabledState()
// push a message and disable the OK button if constraints are invalid
clearInvalidConstraintsMessage();

QStringList invalidFields;
bool validConstraint = currentFormValidConstraints( invalidFields );
QStringList invalidFields, descriptions;
bool validConstraint = currentFormValidConstraints( invalidFields, descriptions );

if ( ! validConstraint )
displayInvalidConstraintMessage( invalidFields );
displayInvalidConstraintMessage( invalidFields, descriptions );

isEditable = isEditable & validConstraint;

@@ -1205,7 +1219,6 @@ void QgsAttributeForm::init()
}
mButtonBox->setVisible( buttonBoxVisible );

<<<<<<< HEAD
if ( !mSearchButtonBox )
{
mSearchButtonBox = new QWidget();
@@ -1618,7 +1631,8 @@ void QgsAttributeForm::afterWidgetInit()
}

connect( eww, SIGNAL( valueChanged( const QVariant& ) ), this, SLOT( onAttributeChanged( const QVariant& ) ) );
connect( eww, SIGNAL( constraintStatusChanged( QString, QString, bool ) ), this, SLOT( onConstraintStatusChanged( QString, QString, bool ) ) );
connect( eww, SIGNAL( constraintStatusChanged( QString, QString, QString, bool ) ),
this, SLOT( onConstraintStatusChanged( QString, QString, QString, bool ) ) );
}
}

@@ -234,8 +234,8 @@ class GUI_EXPORT QgsAttributeForm : public QWidget
void onAttributeAdded( int idx );
void onAttributeDeleted( int idx );
void onUpdatedFields();
void onConstraintStatusChanged( const QString& constraint, const QString& err, bool ok );

void onConstraintStatusChanged( const QString& constraint,
const QString &description, const QString& err, bool ok );
void preventFeatureRefresh();
void synchronizeEnabledState();
void layerSelectionChanged();
@@ -302,10 +302,11 @@ class GUI_EXPORT QgsAttributeForm : public QWidget
void updateAllConstaints();
void updateConstraints( QgsEditorWidgetWrapper *w );
bool currentFormFeature( QgsFeature &feature );
bool currentFormValidConstraints( QStringList &invalidFields );
bool currentFormValidConstraints( QStringList &invalidFields, QStringList &descriptions );
void constraintDependencies( QgsEditorWidgetWrapper *w, QList<QgsEditorWidgetWrapper*> &wDeps );
void clearInvalidConstraintsMessage();
void displayInvalidConstraintMessage( const QStringList &invalidFields );
void displayInvalidConstraintMessage( const QStringList &invalidFields,
const QStringList &description );
void displayNullFieldsMessage();
QgsMessageBarItem *mInvalidConstraintMessageBarItem;
QgsMessageBarItem *mFieldNotInitializedMessageBarItem;

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