Using suggestions from rabbit

Author: cvvergara

help/source/conf.py

@@ -48,7 +48,7 @@
 # The short X.Y version.
 version = '4.0'
 # The full version, including alpha/beta/rc tags.
-release = '4.0'
+release = '4.0.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

pgRoutingLayer.py

@@ -1098,15 +1098,17 @@ def findNearestNode(self, args, pt):
 
             #Utils.logMessage(PgrQ.get_closestVertexInfo(args).as_string(connection))
             cursor.execute(PgrQ.get_closestVertexInfo(args))
-            if cursor:
-                data = cursor.fetchone()
+            data = cursor.fetchone()
+            db.con.close()
+            if data:
                 return True, data[0], data[2]
             else:
                 return False, None, None
 
         except psycopg2.DatabaseError as e:
             QApplication.restoreOverrideCursor()
             QMessageBox.critical(self.dock, self.dock.windowTitle(), '%s' % e)
+            return False, None, None
 
         finally:
             if db and db.con:

utilities/pgr_queries.py

@@ -71,24 +71,27 @@ def getEdgesQueryXY(args):
         FROM {edge_schema}.{edge_table} {where_clause}
         """.replace("\\n", r"\n")).format(**args)
 
-def getEndPoint(args, vertex_id):
 def getEndPoint(args, vertex_id):
     # Prefer source endpoint when available; otherwise fallback to target endpoint
     return sql.SQL("""
         SELECT COALESCE(
-            (SELECT ST_StartPoint({geometry}) FROM {edge_schema}.{edge_table} WHERE {source} = {vid} LIMIT 1),
-            (SELECT ST_EndPoint({geometry}) FROM {edge_schema}.{edge_table} WHERE {target} = {vid} LIMIT 1)
+            (SELECT ST_StartPoint({geometry}) FROM {edge_schema}.{edge_table} WHERE {source} = {vid} ORDER BY {id} LIMIT 1),
+            (SELECT ST_EndPoint({geometry}) FROM {edge_schema}.{edge_table} WHERE {target} = {vid} ORDER BY {id} LIMIT 1)
         )
     """.replace("\\n", r"\n")).format(**args, vid=vertex_id)
 
 def getCostLine(args, departure, arrival):
     return sql.Composed([
-            sql.SQL("SELECT ST_asText(ST_makeLine(("),
-            getEndPoint(args, departure),
-            sql.SQL("), ("),
-            getEndPoint(args, arrival),
-            sql.SQL("))) AS line")
-            ])
+        sql.SQL("SELECT ST_AsText("),
+        args['transform_s'],
+        sql.SQL("ST_MakeLine(("),
+        getEndPoint(args, departure),
+        sql.SQL("), ("),
+        getEndPoint(args, arrival),
+        sql.SQL("))"),
+        args['transform_e'],
+        sql.SQL(") AS line"),
+    ])
 
 def getMidPoint():
     return sql.SQL("SELECT ST_asText(ST_LineInterpolatePoint(ST_GeomFromText(%s),0.5))")