--- ZSQLExtend/importFMPXML.py	2010/05/10 15:50:32	1.31
+++ ZSQLExtend/importFMPXML.py	2011/05/20 16:03:18	1.32
@@ -22,7 +22,7 @@ except:
 
 fm_ns = 'http://www.filemaker.com/fmpxmlresult'
 
-version_string = "V0.6.5 ROC 10.5.2010"
+version_string = "V0.6.6 ROC 20.5.2011"
 
 def unicodify(text, withNone=False):
     """decode str (utf-8 or latin-1 representation) into unicode object"""
@@ -389,18 +389,23 @@ class xml_handler:
         
         if self.sync_mode:
             # delete unmatched entries in db
-            self.logger.info("deleting unmatched rows from db")
-            delQuery = "DELETE FROM %s WHERE \"%s\" = %%s"%(self.table,self.id_field)
-            for id in self.dbIDs.keys():
-                # find all not-updated fields
-                if self.dbIDs[id] == 0:
-                    self.logger.info(" delete: %s"%id)
-                    SimpleSearch(self.db, delQuery, [id], ascii=self.ascii_db)
-                    
-                elif self.dbIDs[id] > 1:
-                    self.logger.info(" sync: ID %s used more than once?"%id)
-            
-            self.dbCon.commit()
+            if self.rowcnt > 0:
+                self.logger.info("deleting unmatched rows from db")
+                delQuery = "DELETE FROM %s WHERE \"%s\" = %%s"%(self.table,self.id_field)
+                for id in self.dbIDs.keys():
+                    # find all not-updated fields
+                    if self.dbIDs[id] == 0:
+                        self.logger.info(" delete: %s"%id)
+                        SimpleSearch(self.db, delQuery, [id], ascii=self.ascii_db)
+                        
+                    elif self.dbIDs[id] > 1:
+                        self.logger.info(" sync: ID %s used more than once?"%id)
+                
+                self.dbCon.commit()
+                
+            else:
+                # safety in case we had an empty file
+                self.logger.warning("no rows read! not deleting unmatched rows!")
             
         # reinstate backup tables
         if self.backup_table and not self.id_field: