QgsEditorWidgetSetup editorWidgetSetup( const QgsVectorLayer *vl, const QString &fieldName, int &score ) const override
{
int bestScore = 0;
QString bestType;
const QMap<QString, QgsEditorWidgetFactory *> factories = QgsGui::editorWidgetRegistry()->factories();
for ( QMap<QString, QgsEditorWidgetFactory *>::const_iterator i = factories.begin(); i != factories.end(); ++i )
{
const int index = vl->fields().lookupField( fieldName );
if ( index >= 0 )
{
const int score = i.value()->fieldScore( vl, index );
if ( score > bestScore )
{
bestType = i.key();
bestScore = score;
}
}
}
if ( bestScore > 0 )
{
score = 10;
return QgsEditorWidgetSetup( bestType, QVariantMap() );
}
return QgsEditorWidgetSetup();
}
bool QgsAuxiliaryLayer::addAuxiliaryField( const QgsPropertyDefinition &definition )
{
if ( ( definition.name().isEmpty() && definition.comment().isEmpty() ) || exists( definition ) )
return false;
const QgsField af = createAuxiliaryField( definition );
const bool rc = addAttribute( af );
updateFields();
mLayer->updateFields();
if ( rc )
{
int auxIndex = indexOfPropertyDefinition( definition );
int index = mLayer->fields().indexOf( nameFromProperty( definition, true ) );
if ( index >= 0 && auxIndex >= 0 )
{
if ( isHiddenProperty( auxIndex ) )
{
// update editor widget
QgsEditorWidgetSetup setup = QgsEditorWidgetSetup( QStringLiteral( "Hidden" ), QVariantMap() );
setEditorWidgetSetup( auxIndex, setup );
// column is hidden
QgsAttributeTableConfig attrCfg = mLayer->attributeTableConfig();
attrCfg.update( mLayer->fields() );
QVector<QgsAttributeTableConfig::ColumnConfig> columns = attrCfg.columns();
QVector<QgsAttributeTableConfig::ColumnConfig>::iterator it;
for ( it = columns.begin(); it != columns.end(); ++it )
{
if ( it->name.compare( mLayer->fields().field( index ).name() ) == 0 )
it->hidden = true;
}
attrCfg.setColumns( columns );
mLayer->setAttributeTableConfig( attrCfg );
}
else if ( definition.standardTemplate() == QgsPropertyDefinition::ColorNoAlpha
|| definition.standardTemplate() == QgsPropertyDefinition::ColorWithAlpha )
{
QgsEditorWidgetSetup setup = QgsEditorWidgetSetup( QStringLiteral( "Color" ), QVariantMap() );
setEditorWidgetSetup( auxIndex, setup );
}
mLayer->setEditorWidgetSetup( index, editorWidgetSetup( auxIndex ) );
}
}
return rc;
}
QgsEditorWidgetSetup editorWidgetSetup( const QgsVectorLayer *vl, const QString &fieldName, int &score ) const override
{
QgsField field = vl->fields().field( fieldName );
if ( !field.editorWidgetSetup().isNull() )
{
score = 20;
return field.editorWidgetSetup();
}
else
{
return QgsEditorWidgetSetup();
}
}
void TestQgsAttributeForm::testFieldConstraint()
{
// make a temporary vector layer
QString def = QStringLiteral( "Point?field=col0:integer" );
QgsVectorLayer* layer = new QgsVectorLayer( def, QStringLiteral( "test" ), QStringLiteral( "memory" ) );
layer->setEditorWidgetSetup( 0, QgsEditorWidgetSetup( QStringLiteral( "TextEdit" ), QVariantMap() ) );
// add a feature to the vector layer
QgsFeature ft( layer->dataProvider()->fields(), 1 );
ft.setAttribute( QStringLiteral( "col0" ), 0 );
// build a form for this feature
QgsAttributeForm form( layer );
form.setFeature( ft );
// testing stuff
QString validLabel = QStringLiteral( "col0<font color=\"green\">✔</font>" );
QString invalidLabel = QStringLiteral( "col0<font color=\"red\">✘</font>" );
QString warningLabel = QStringLiteral( "col0<font color=\"orange\">✘</font>" );
// set constraint
layer->setConstraintExpression( 0, QString() );
// get wrapper
QgsEditorWidgetWrapper *ww;
ww = qobject_cast<QgsEditorWidgetWrapper*>( form.mWidgets[0] );
// no constraint so we expect a label with just the field name
QLabel *label = form.mBuddyMap.value( ww->widget() );
QCOMPARE( label->text(), QString( "col0" ) );
// set a not null constraint
layer->setConstraintExpression( 0, QStringLiteral( "col0 is not null" ) );
// build a form for this feature
QgsAttributeForm form2( layer );
form2.setFeature( ft );
QSignalSpy spy( &form2, SIGNAL( attributeChanged( QString, QVariant ) ) );
ww = qobject_cast<QgsEditorWidgetWrapper*>( form2.mWidgets[0] );
label = form2.mBuddyMap.value( ww->widget() );
// set value to 1
ww->setValue( 1 );
QCOMPARE( spy.count(), 2 );
QCOMPARE( label->text(), validLabel );
// set value to null
spy.clear();
ww->setValue( QVariant() );
QCOMPARE( spy.count(), 2 );
QCOMPARE( label->text(), invalidLabel );
// set value to 1
spy.clear();
ww->setValue( 1 );
QCOMPARE( spy.count(), 2 );
QCOMPARE( label->text(), validLabel );
// set a soft constraint
layer->setConstraintExpression( 0, QStringLiteral( "col0 is not null" ) );
layer->setFieldConstraint( 0, QgsFieldConstraints::ConstraintExpression, QgsFieldConstraints::ConstraintStrengthSoft );
// build a form for this feature
QgsAttributeForm form3( layer );
form3.setFeature( ft );
ww = qobject_cast<QgsEditorWidgetWrapper*>( form3.mWidgets[0] );
label = form3.mBuddyMap.value( ww->widget() );
// set value to 1
ww->setValue( 1 );
QCOMPARE( label->text(), validLabel );
// set value to null
ww->setValue( QVariant() );
QCOMPARE( label->text(), warningLabel );
// set value to 1
ww->setValue( 1 );
QCOMPARE( label->text(), validLabel );
}
