Couple of items:

* Small fix to DBQueryFatal in libdb.py: () is a valid return value,
  don't fail on it(insert/replace); do fail if DBQuery returns None though.

* Fix up libplab.py to not choke on new plab_slices column.

db/libdb.py.in

@@ -101,6 +101,6 @@ def DBQuery(queryPat, querySub = (), asDict = False):
 
 def DBQueryFatal(*args):
     ret = DBQuery(*args)
-    if ret:
-        return ret
-    raise RuntimeError, "DBQueryFatal failed"
+    if ret == None:
+        raise RuntimeError, "DBQueryFatal failed"
+    return ret

tbsetup/plab/libdb.py.in

@@ -101,6 +101,6 @@ def DBQuery(queryPat, querySub = (), asDict = False):
 
 def DBQueryFatal(*args):
     ret = DBQuery(*args)
-    if ret:
-        return ret
-    raise RuntimeError, "DBQueryFatal failed"
+    if ret == None:
+        raise RuntimeError, "DBQueryFatal failed"
+    return ret

tbsetup/plab/libplab.py.in

@@ -742,6 +742,7 @@ class Slice:
                  self.plab.agent.createSlice(self)
 
             DBQueryFatal("insert into plab_slices"
+                         " (pid, eid, slicename, slicemeta, leaseend)"
                          " values (%s, %s, %s, %s, FROM_UNIXTIME(%s))",
                          (self.pid, self.eid, self.slicename,
                           self.slicemeta, self.leaseend))
@@ -786,6 +787,7 @@ class Slice:
                  self.plab.agent.renewSlice(self)
             
             DBQueryFatal("replace into plab_slices"
+                         " (pid, eid, slicename, slicemeta, leaseend)"
                          " values (%s, %s, %s, %s, FROM_UNIXTIME(%s))",
                          (self.pid, self.eid, self.slicename,
                           self.slicemeta, self.leaseend))