Update CRS cache when deleting a custom CRS

Author: leyan

src/app/qgscustomprojectiondialog.cpp

@@ -168,6 +168,9 @@ bool  QgsCustomProjectionDialog::deleteCRS( QString id )
     QgsDebugMsg( QString( "failed to remove CRS from database in custom projection dialog: %1 [%2]" ).arg( mySql ).arg( sqlite3_errmsg( myDatabase ) ) );
   }
   sqlite3_close( myDatabase );
+
+  QgsCRSCache::instance()->updateCRSCache( QString( "USER:%1" ).arg( id ) );
+
   return myResult == SQLITE_OK;
 }
 

src/core/qgscrscache.cpp

@@ -106,6 +106,11 @@ void QgsCRSCache::updateCRSCache( const QString& authid )
   {
     mCRS.insert( authid, s );
   }
+  else
+  {
+    mCRS.remove( authid );
+  }
+
   QgsCoordinateTransformCache::instance()->invalidateCrs( authid );
 }