Modernize code

(cherry-picked from 409d47e)

src/providers/wfs/qgswfsrequest.cpp

@@ -78,7 +78,7 @@ bool QgsWfsRequest::sendGET( const QUrl &url, bool synchronous, bool forceRefres
     QString modifiedUrlString = modifiedUrl.toString();
     // Qt5 does URL encoding from some reason (of the FILTER parameter for example)
     modifiedUrlString = QUrl::fromPercentEncoding( modifiedUrlString.toUtf8() );
-    QgsDebugMsg( QString( "Get %1" ).arg( modifiedUrlString ) );
+    QgsDebugMsg( QStringLiteral( "Get %1" ).arg( modifiedUrlString ) );
     modifiedUrlString = modifiedUrlString.mid( QStringLiteral( "http://" ).size() );
     QString args = modifiedUrlString.mid( modifiedUrlString.indexOf( '?' ) );
     if ( modifiedUrlString.size() > 256 )
@@ -280,7 +280,7 @@ void QgsWfsRequest::abort()
 
 void QgsWfsRequest::replyProgress( qint64 bytesReceived, qint64 bytesTotal )
 {
-  QgsDebugMsg( QStringLiteral( "%1 of %2 bytes downloaded." ).arg( bytesReceived ).arg( bytesTotal < 0 ? QString( "unknown number of" ) : QString::number( bytesTotal ) ) );
+  QgsDebugMsg( QStringLiteral( "%1 of %2 bytes downloaded." ).arg( bytesReceived ).arg( bytesTotal < 0 ? QStringLiteral( "unknown number of" ) : QString::number( bytesTotal ) ) );
 
   if ( bytesReceived != 0 )
     mGotNonEmptyResponse = true;
@@ -307,11 +307,11 @@ void QgsWfsRequest::replyFinished()
   {
     if ( mReply->error() == QNetworkReply::NoError )
     {
-      QgsDebugMsg( "reply OK" );
+      QgsDebugMsg( QStringLiteral( "reply OK" ) );
       QVariant redirect = mReply->attribute( QNetworkRequest::RedirectionTargetAttribute );
       if ( !redirect.isNull() )
       {
-        QgsDebugMsg( "Request redirected." );
+        QgsDebugMsg( QStringLiteral( "Request redirected." ) );
 
         const QUrl &toUrl = redirect.toUrl();
         mReply->request();
@@ -339,7 +339,7 @@ void QgsWfsRequest::replyFinished()
           mReply->deleteLater();
           mReply = nullptr;
 
-          QgsDebugMsg( QString( "redirected: %1 forceRefresh=%2" ).arg( redirect.toString() ).arg( mForceRefresh ) );
+          QgsDebugMsg( QStringLiteral( "redirected: %1 forceRefresh=%2" ).arg( redirect.toString() ).arg( mForceRefresh ) );
           mReply = QgsNetworkAccessManager::instance()->get( request );
           mReply->setReadBufferSize( READ_BUFFER_SIZE_HINT );
           if ( !mUri.auth().setAuthorizationReply( mReply ) )
@@ -372,7 +372,7 @@ void QgsWfsRequest::replyFinished()
           }
           cmd.setRawHeaders( hl );
 
-          QgsDebugMsg( QString( "expirationDate:%1" ).arg( cmd.expirationDate().toString() ) );
+          QgsDebugMsg( QStringLiteral( "expirationDate:%1" ).arg( cmd.expirationDate().toString() ) );
           if ( cmd.expirationDate().isNull() )
           {
             cmd.setExpirationDate( QDateTime::currentDateTime().addSecs( defaultExpirationInSec() ) );
@@ -382,12 +382,12 @@ void QgsWfsRequest::replyFinished()
         }
         else
         {
-          QgsDebugMsg( "No cache!" );
+          QgsDebugMsg( QStringLiteral( "No cache!" ) );
         }
 
 #ifdef QGISDEBUG
         bool fromCache = mReply->attribute( QNetworkRequest::SourceIsFromCacheAttribute ).toBool();
-        QgsDebugMsg( QString( "Reply was cached: %1" ).arg( fromCache ) );
+        QgsDebugMsg( QStringLiteral( "Reply was cached: %1" ).arg( fromCache ) );
 #endif
 
         mResponse = mReply->readAll();

src/providers/wfs/qgswfsshareddata.cpp

@@ -219,7 +219,7 @@ bool QgsWFSSharedData::createCache()
   Q_ASSERT( !QFile::exists( mCacheDbname ) );
 
   QgsFields cacheFields;
-  Q_FOREACH ( const QgsField &field, mFields )
+  for ( const QgsField &field : qgis::as_const( mFields ) )
   {
     QVariant::Type type = field.type();
     // Map DateTime to int64 milliseconds from epoch
@@ -261,11 +261,11 @@ bool QgsWFSSharedData::createCache()
     vsimemFilename.sprintf( "/vsimem/qgis_wfs_cache_template_%p/features.sqlite", this );
     mCacheTablename = CPLGetBasename( vsimemFilename.toStdString().c_str() );
     VSIUnlink( vsimemFilename.toStdString().c_str() );
-    QgsVectorFileWriter *writer = new QgsVectorFileWriter( vsimemFilename, QLatin1String( "" ),
+    std::unique_ptr< QgsVectorFileWriter > writer = qgis::make_unique< QgsVectorFileWriter >( vsimemFilename, QString(),
         cacheFields, QgsWkbTypes::Polygon, QgsCoordinateReferenceSystem(), QStringLiteral( "SpatiaLite" ), datasourceOptions, layerOptions );
     if ( writer->hasError() == QgsVectorFileWriter::NoError )
     {
-      delete writer;
+      writer.reset();
 
       // Copy the temporary database back to disk
       vsi_l_offset nLength = 0;
@@ -293,7 +293,7 @@ bool QgsWFSSharedData::createCache()
       // not define SPATIALITE_412_OR_LATER, and thus the call to
       // spatialite_init() may cause failures, which will require using the
       // slower method
-      delete writer;
+      writer.reset();
       VSIUnlink( vsimemFilename.toStdString().c_str() );
     }
   }
@@ -446,7 +446,7 @@ bool QgsWFSSharedData::createCache()
   // regarding crashes, since this is a temporary DB
   QgsDataSourceUri dsURI;
   dsURI.setDatabase( mCacheDbname );
-  dsURI.setDataSource( QLatin1String( "" ), mCacheTablename, geometryFieldname, QLatin1String( "" ), fidName );
+  dsURI.setDataSource( QString(), mCacheTablename, geometryFieldname, QString(), fidName );
   QStringList pragmas;
   pragmas << QStringLiteral( "synchronous=OFF" );
   pragmas << QStringLiteral( "journal_mode=WAL" ); // WAL is needed to avoid reader to block writers