Merge branch '5605-types' of git://github.com/carolinux/QGIS into car…

…olinux-5605-types

src/providers/delimitedtext/qgsdelimitedtextprovider.cpp

@@ -245,7 +245,7 @@ QStringList QgsDelimitedTextProvider::readCsvtFieldTypes( QString filename, QStr
   // not allowed in OGR CSVT files.  Also doesn't care if int and string fields have
 
   strTypeList = strTypeList.toLower();
-  QRegExp reTypeList( "^(?:\\s*(\\\"?)(?:integer|real|string|date|datetime|time)(?:\\(\\d+(?:\\.\\d+)?\\))?\\1\\s*(?:,|$))+" );
+  QRegExp reTypeList( "^(?:\\s*(\\\"?)(?:integer|real|long|longlong|string|date|datetime|time)(?:\\(\\d+(?:\\.\\d+)?\\))?\\1\\s*(?:,|$))+" );
   if ( ! reTypeList.exactMatch( strTypeList ) )
   {
     // Looks like this was supposed to be a CSVT file, so report bad formatted string
@@ -407,6 +407,7 @@ void QgsDelimitedTextProvider::scanFile( bool buildIndexes )
 
   QList<bool> isEmpty;
   QList<bool> couldBeInt;
+  QList<bool> couldBeLongLong;
   QList<bool> couldBeDouble;
 
   while ( true )
@@ -561,27 +562,28 @@ void QgsDelimitedTextProvider::scanFile( bool buildIndexes )
     {
 
       QString &value = parts[i];
-      if ( value.isEmpty() )
-        continue;
-
-      // try to convert attribute values to integer and double
-
-      while ( couldBeInt.size() <= i )
-      {
+      if ( value.isEmpty() ) {
         isEmpty.append( true );
         couldBeInt.append( false );
+        couldBeLongLong.append( false );
         couldBeDouble.append( false );
+        continue;
       }
-      if ( isEmpty[i] )
-      {
-        isEmpty[i] = false;
-        couldBeInt[i] = true;
-        couldBeDouble[i] = true;
-      }
+      // try to convert attribute values to integer, long and double
+      isEmpty.append( false );
+      // try all possible formats
+      couldBeInt.append( true );
+      couldBeLongLong.append( true );
+      couldBeDouble.append( true );
       if ( couldBeInt[i] )
       {
         value.toInt( &couldBeInt[i] );
       }
+
+      if ( couldBeLongLong[i] )
+      {
+        value.toLongLong( &couldBeLongLong[i] );
+      }
       if ( couldBeDouble[i] )
       {
         if ( ! mDecimalPoint.isEmpty() )
@@ -620,6 +622,11 @@ void QgsDelimitedTextProvider::scanFile( bool buildIndexes )
         fieldType = QVariant::Int;
         typeName = "integer";
       }
+      else if ( csvtTypes[i] == "long" || csvtTypes[i]== "longlong" )
+      {
+        fieldType = QVariant::LongLong; //QVariant doesn't support long
+        typeName = "longlong";
+      }
       else if ( csvtTypes[i] == "real" )
       {
         fieldType = QVariant::Double;
@@ -633,6 +640,11 @@ void QgsDelimitedTextProvider::scanFile( bool buildIndexes )
         fieldType = QVariant::Int;
         typeName = "integer";
       }
+      else if ( couldBeLongLong[i] )
+      {
+        fieldType = QVariant::LongLong;
+        typeName = "longlong";
+      }
       else if ( couldBeDouble[i] )
       {
         fieldType = QVariant::Double;
@@ -997,12 +1009,14 @@ bool QgsDelimitedTextProvider::setSubsetString( QString subset, bool updateFeatu
 
   if ( valid )
   {
-
-    if ( mSubsetExpression ) delete mSubsetExpression;
+    QgsExpression * tmpSubsetExpression = mSubsetExpression;
+    // using a tmp pointer to avoid the pointer being dereferenced by
+    // a friend class after it has been freed but before it has been
+    // reassigned
     QString previousSubset = mSubsetString;
     mSubsetString = subset;
     mSubsetExpression = expression;
-
+    if ( tmpSubsetExpression ) delete tmpSubsetExpression;
     // Update the feature count and extents if requested
 
     // Usage of updateFeatureCount is a bit painful, basically expect that it

tests/src/python/test_qgsdelimitedtextprovider.py

@@ -12,7 +12,7 @@
 # This will get replaced with a git SHA1 when you do a git archive
 __revision__ = '$Format:%H$'
 
-# This module provides unit test for the delimtied text provider.  It uses data files in
+# This module provides unit test for the delimited text provider.  It uses data files in
 # the testdata/delimitedtext directory.
 #
 # New tests can be created (or existing ones updated), but incorporating a createTest
@@ -650,6 +650,12 @@ def test_037_csvt_file_invalid_file(self):
         requests=None
         runTest(filename,requests,**params)
 
+    def test_038_long_type(self):
+        # Skip lines
+        filename='testlongs.csv'
+        params={'yField': 'lat', 'xField': 'lon', 'type': 'csv'}
+        requests=None
+        runTest(filename,requests,**params)
 
 if __name__ == '__main__':
     unittest.main()

tests/src/python/test_qgsdelimitedtextprovider_wanted.py

@@ -2165,3 +2165,54 @@ def test_037_csvt_file_invalid_file():
     }
     wanted['log']=[]
     return wanted
+
+def test_038_long_type():
+    wanted={}
+    filename="testlongs.csv"
+    wanted['uri']=u'file://{}?yField={}&xField={}&type={}'.format(filename,"lat","lon","csv")
+    wanted['fieldTypes']=['longlong', 'text', 'double', 'double', 'integer']
+    # long is casted as longlong because of QVariant limitation
+    wanted['data']={
+        2L: {
+            'id': u'9189304972279762602',
+            'a_long': u'9189304972279762602',
+            'lon': u'1.0',
+            'lat': u'1.0',
+            'an_integer': u'40',
+            '#geometry': 'POINT(1.0 1.0)',
+            '#fid':2L,
+            'description': 'line1'
+    },
+        3L: {
+            'id': u'9189304972279762602',
+            'a_long': u'9189304972279762602',
+            'lon': u'2.2',
+            'lat': u'2.5',
+            'an_integer': u'5',
+            '#geometry': 'POINT(2.2 2.5)',
+            '#fid':3L,
+            'description': 'line2'
+    },
+        4L: {
+            'id': u'-3123724580211819352',
+            'a_long': u'-3123724580211819352',
+            'lon': u'1.0',
+            'lat': u'1.0',
+            'an_integer': u'7',
+            '#geometry': 'POINT(1.0 1.0)',
+            '#fid':4L,
+            'description': 'line3'
+    },
+        5L: {
+            'id': u'-3',
+            'a_long': u'-3',
+            'lon': u'1.0',
+            'lat': u'1.0',
+            'an_integer': u'7',
+            '#geometry': 'POINT(1.0 1.0)',
+            '#fid':5L,
+            'description': 'line4'
+    }
+    }
+    wanted['log']=[]
+    return wanted

tests/testdata/delimitedtext/testlongs.csv

@@ -0,0 +1,5 @@
+a_long,description,lon,lat,an_integer
+9189304972279762602,line1,1.0,1.0,40
+9189304972279762602,line2,2.2,2.5,5
+-3123724580211819352,line3,1.0,1.0,7
+-3,line4,1.0,1.0,7