qgis server fixes:

* support edit types based on edit widgets (adds qgis_gui dependency; fixes #12091)
* show null values (fixes #12114)
* only quote non-numeric non-null values in feature info
* fix crash on exit
* remove obsolete parser method and debug output

Author: jef-n

src/gui/editorwidgets/core/qgseditorwidgetregistry.cpp

@@ -47,9 +47,9 @@ QgsEditorWidgetRegistry* QgsEditorWidgetRegistry::instance()
   return &sInstance;
 }
 
-void QgsEditorWidgetRegistry::initEditors( QgsMapCanvas* mapCanvas, QgsMessageBar* messageBar )
+void QgsEditorWidgetRegistry::initEditors( QgsMapCanvas *mapCanvas, QgsMessageBar *messageBar )
 {
-  QgsEditorWidgetRegistry* reg = instance();
+  QgsEditorWidgetRegistry *reg = instance();
   reg->registerWidget( "Classification", new QgsClassificationWidgetWrapperFactory( tr( "Classification" ) ) );
   reg->registerWidget( "Range", new QgsRangeWidgetFactory( tr( "Range" ) ) );
   reg->registerWidget( "UniqueValues", new QgsUniqueValueWidgetFactory( tr( "Unique Values" ) ) );

src/server/CMakeLists.txt

@@ -88,7 +88,7 @@ ENDIF (WIN32)
 
 QT4_WRAP_CPP(qgis_mapserv_MOC_SRCS ${qgis_mapserv_MOC_HDRS})
 
-ADD_LIBRARY(qgis_server SHARED ${qgis_mapserv_SRCS} ${qgis_mapserv_MOC_SRCS} ${qgis_mapserv_HDRS} ${qgis_mapserv_MOC_HDRS} )
+ADD_LIBRARY(qgis_server SHARED ${qgis_mapserv_SRCS} ${qgis_mapserv_MOC_SRCS} ${qgis_mapserv_HDRS} ${qgis_mapserv_MOC_HDRS})
 
 #generate unversioned libs for android
 IF (NOT ANDROID)
@@ -100,6 +100,7 @@ ENDIF (NOT ANDROID)
 
 TARGET_LINK_LIBRARIES(qgis_server
   qgis_core
+  qgis_gui
   qgis_analysis
   qgispython
   ${PROJ_LIBRARY}
@@ -155,13 +156,17 @@ INCLUDE_DIRECTORIES(
   ../core/symbology-ng
   ../core/composer
   ../core/layertree
+  ../gui
+  ../gui/editorwidgets
+  ../gui/editorwidgets/core
   ../analysis/interpolation
   ../plugins/diagram_overlay
   .
 )
 
 TARGET_LINK_LIBRARIES(qgis_mapserv.fcgi
   qgis_core
+  qgis_gui
   qgis_analysis
   ${PROJ_LIBRARY}
   ${FCGI_LIBRARY}

src/server/qgis_map_serv.cpp

@@ -37,6 +37,7 @@
 #include "qgsnetworkaccessmanager.h"
 #include "qgsmaplayerregistry.h"
 #include "qgsserverlogger.h"
+#include "qgseditorwidgetregistry.h"
 
 #ifdef HAVE_SERVER_PYTHON_PLUGINS
 #include "qgsserverplugins.h"
@@ -287,8 +288,6 @@ int main( int argc, char * argv[] )
   QgsDebugMsg( "User DB PATH: " + QgsApplication::qgisUserDbFilePath() );
   QgsDebugMsg( "SVG PATHS: " + QgsApplication::svgPaths().join( ":" ) );
 
-  // FIXME: what is this debug line for?
-  QgsDebugMsg( qgsapp.applicationDirPath() + "/qgis_wms_server.log" );
   QgsApplication::createDB(); //init qgis.db (e.g. necessary for user crs)
 
   QString defaultConfigFilePath;
@@ -337,6 +336,8 @@ int main( int argc, char * argv[] )
   QMultiMap<int, QgsServerFilter*> pluginFilters = serverIface.filters();
 #endif
 
+  QgsEditorWidgetRegistry::initEditors();
+
   while ( fcgi_accept() >= 0 )
   {
     QgsMapLayerRegistry::instance()->removeAllMapLayers();

src/server/qgsconfigcache.cpp

@@ -27,8 +27,12 @@
 
 QgsConfigCache* QgsConfigCache::instance()
 {
-  static QgsConfigCache mInstance;
-  return &mInstance;
+  static QgsConfigCache *instance = 0;
+
+  if ( !instance )
+    instance = new QgsConfigCache();
+
+  return instance;
 }
 
 QgsConfigCache::QgsConfigCache()

src/server/qgsconfigcache.h

@@ -44,7 +44,6 @@ class QgsConfigCache: public QObject
 
   private:
     QgsConfigCache();
-    static QgsConfigCache* mInstance;
 
     /**Check for configuration file updates (remove entry from cache if file changes)*/
     QFileSystemWatcher mFileSystemWatcher;

src/server/qgshttprequesthandler.cpp

@@ -368,8 +368,8 @@ void QgsHttpRequestHandler::setGetFeatureInfoResponse( const QDomDocument& infoD
             QDomElement attributeElement = attributeNodeList.at( k ).toElement();
             if ( infoFormat == "text/plain" )
             {
-              featureInfoString.append( attributeElement.attribute( "name" ) + " = '" +
-                                        attributeElement.attribute( "value" ) + "'\n" );
+              featureInfoString.append( attributeElement.attribute( "name" ) + " = " +
+                                        attributeElement.attribute( "value" ) + "\n" );
             }
             else if ( infoFormat == "text/html" )
             {

src/server/qgsserverprojectparser.cpp

@@ -24,6 +24,7 @@
 #include "qgsmaplayerregistry.h"
 #include "qgsmslayercache.h"
 #include "qgsrasterlayer.h"
+#include "qgseditorwidgetregistry.h"
 
 #include <QDomDocument>
 #include <QFileInfo>
@@ -241,6 +242,12 @@ QgsMapLayer* QgsServerProjectParser::createLayerFromElement( const QDomElement&
 
   if ( layer )
   {
+    if ( layer->type() == QgsMapLayer::VectorLayer )
+    {
+      // see QgsEditorWidgetRegistry::mapLayerAdded()
+      QObject::connect( layer, SIGNAL( readCustomSymbology( const QDomElement&, QString& ) ), QgsEditorWidgetRegistry::instance(), SLOT( readSymbology( const QDomElement&, QString& ) ) );
+    }
+
     layer->readLayerXML( const_cast<QDomElement&>( elem ) ); //should be changed to const in QgsMapLayer
     layer->setLayerName( layerName( elem ) );
     if ( useCache )
@@ -919,50 +926,6 @@ QStringList QgsServerProjectParser::supportedOutputCrsList() const
   return crsList;
 }
 
-//not very nice, needs to be kept in sync with QgsVectorLayer class...
-QString QgsServerProjectParser::editTypeString( QgsVectorLayer::EditType type )
-{
-  switch ( type )
-  {
-    case QgsVectorLayer::LineEdit:
-      return "LineEdit";
-    case QgsVectorLayer::UniqueValues:
-      return "UniqueValues";
-    case QgsVectorLayer::UniqueValuesEditable:
-      return "UniqueValuesEditable";
-    case QgsVectorLayer::ValueMap:
-      return "ValueMap";
-    case QgsVectorLayer::Classification:
-      return "Classification";
-    case QgsVectorLayer::EditRange:
-      return "EditRange";
-    case QgsVectorLayer::SliderRange:
-      return "SliderRange";
-    case QgsVectorLayer::CheckBox:
-      return "CheckBox";
-    case QgsVectorLayer::FileName:
-      return "FileName";
-    case QgsVectorLayer::Enumeration:
-      return "Enumeration";
-    case QgsVectorLayer::Immutable:
-      return "Immutable";
-    case QgsVectorLayer::Hidden:
-      return "Hidden";
-    case QgsVectorLayer::TextEdit:
-      return "TextEdit";
-    case QgsVectorLayer::Calendar:
-      return "Calendar";
-    case QgsVectorLayer::DialRange:
-      return "DialRange";
-    case QgsVectorLayer::ValueRelation:
-      return "ValueRelation";
-    case QgsVectorLayer::UuidGenerator:
-      return "UuidGenerator";
-    default:
-      return "Unknown";
-  }
-}
-
 QString QgsServerProjectParser::projectTitle() const
 {
   if ( !mXMLDoc )

src/server/qgsserverprojectparser.h

@@ -70,8 +70,6 @@ class QgsServerProjectParser
 
     QStringList supportedOutputCrsList() const;
 
-    static QString editTypeString( QgsVectorLayer::EditType type );
-
     const QList<QDomElement>& projectLayerElements() const { return mProjectLayerElements; }
 
     const QList<QDomElement>& legendGroupElements() const { return mLegendGroupElements; }

src/server/qgswmsserver.cpp

@@ -2094,7 +2094,26 @@ int QgsWMSServer::featureInfoFromVectorLayer( QgsVectorLayer* layer,
 
         QDomElement attributeElement = infoDocument.createElement( "Attribute" );
         attributeElement.setAttribute( "name", attributeName );
-        attributeElement.setAttribute( "value", replaceValueMapAndRelation( layer, i, QgsExpression::replaceExpressionText( featureAttributes[i].toString(), &feature, layer ) ) );
+
+        QString value;
+        if ( featureAttributes[i].isNull() )
+          value = QSettings().value( "qgis/nullValue", "NULL" ).toString();
+        else
+        {
+          value = replaceValueMapAndRelation( layer, i, QgsExpression::replaceExpressionText( featureAttributes[i].toString(), &feature, layer ) );
+
+          switch ( featureAttributes[i].type() )
+          {
+            case QVariant::Int:
+            case QVariant::LongLong:
+            case QVariant::Double:
+              break;
+            default:
+              value = "'" + value + "'";
+          }
+        }
+
+        attributeElement.setAttribute( "value",  value );
         featureElement.appendChild( attributeElement );
       }
 
@@ -3054,42 +3073,43 @@ QString QgsWMSServer::replaceValueMapAndRelation( QgsVectorLayer* vl, int idx, c
     QMap<QString, QVariant>::const_iterator vmapIt = cfg.constBegin();
     for ( ; vmapIt != cfg.constEnd(); ++vmapIt )
     {
-      if ( vmapIt.value().toString() == attributeVal )
+      if ( vmapIt.key() == attributeVal )
       {
-        return vmapIt.key();
+        return vmapIt.value().toString();
       }
     }
+    return QString( "(%1)" ).arg( attributeVal );
   }
   else if ( type == "ValueRelation" )
   {
     QgsEditorWidgetConfig cfg( vl->editorWidgetV2Config( idx ) );
     QgsVectorLayer* layer = qobject_cast<QgsVectorLayer*>( QgsMapLayerRegistry::instance()->mapLayer( cfg.value( "Layer" ).toString() ) );
     if ( !layer )
     {
-      return attributeVal;
+      return QString( "(%1)" ).arg( attributeVal );
     }
 
     QString outputString;
-    if ( cfg.value( "AllowMulti" ).toBool() )
+    QString valueString = attributeVal;
+    QStringList valueList = cfg.value( "AllowMulti" ).toBool()
+                            ? valueString.remove( QChar( '{' ) ).remove( QChar( '}' ) ).split( "," )
+                            : QStringList( valueString );
+    for ( int i = 0; i < valueList.size(); ++i )
     {
-      QString valueString = attributeVal;
-      QStringList valueList = valueString.remove( QChar( '{' ) ).remove( QChar( '}' ) ).split( "," );
-      for ( int i = 0; i < valueList.size(); ++i )
+      if ( i > 0 )
       {
-        if ( i > 0 )
-        {
-          outputString += ";";
-        }
-        outputString += relationValue(
-                          valueList.at( i ),
-                          layer,
-                          cfg.value( "Key" ).toString(),
-                          cfg.value( "Value" ).toString()
-                        );
+        outputString += ";";
       }
+      outputString += relationValue(
+                        valueList.at( i ),
+                        layer,
+                        cfg.value( "Key" ).toString(),
+                        cfg.value( "Value" ).toString()
+                      );
     }
     return outputString;
   }
+
   return attributeVal;
 }