[GRASS-SVN] r38883 - grass/branches/develbranch_6/scripts/v.rast.stats

[svn_grass at osgeo.org]

Author: hamish
Date: 2009-08-27 06:44:14 -0400 (Thu, 27 Aug 2009)
New Revision: 38883

Modified:
   grass/branches/develbranch_6/scripts/v.rast.stats/v.rast.stats
Log:
error if column prefix is too long for DBF

Modified: grass/branches/develbranch_6/scripts/v.rast.stats/v.rast.stats
===================================================================
--- grass/branches/develbranch_6/scripts/v.rast.stats/v.rast.stats	2009-08-27 09:08:08 UTC (rev 38882)
+++ grass/branches/develbranch_6/scripts/v.rast.stats/v.rast.stats	2009-08-27 10:44:14 UTC (rev 38883)
@@ -197,13 +197,26 @@
 
 #check if DBF driver used, in this case cut to 10 chars col names:
 DBFDRIVER=0
-v.db.connect -g "$VECTOR" fs=";" | grep -w "$GIS_OPT_LAYER" | cut -d';' -f5 | grep -i dbf --quiet
+v.db.connect -g "$VECTOR" fs=";" | grep -w "$GIS_OPT_LAYER" | \
+   cut -d';' -f5 | grep -i dbf --quiet
 if [ $? -eq 0 ] ; then
    DBFDRIVER=1
 else
    # in case a table is missing, we'll trap a crash later...
    DBFDRIVER=0
 fi
+
+if [ $DBFDRIVER -eq 1 ] ; then
+   # `wc -c` reports number of chars + 1 for the newline
+   if [ `echo "$COLPREFIX" | wc -c` -gt 8 ] ; then
+       g.message -e "Cannot create unique names for columns. \
+         Either use a shorter column prefix or switch to another DB \
+	 backend such as SQLite. DBF limits the length to 10 characters"
+       cleanup
+       exit 1
+   fi
+fi
+
 # we need this for non-DBF driver:
 DB_SQLDRIVER=`v.db.connect -g "$VECTOR" fs=";" | cut -d';' -f5`
 DB_DATABASE="`v.db.connect -g "$VECTOR" fs=";" | cut -d';' -f4`"