def _prepare_parms( parent, rec=None, inv=None ):
parms = []
if rec:
for i in range( parent.NF ):
parms.append( parent.fmt_field(rec,i) )
else:
for i in range(parent.NF):
if i==0:
parms.append( inv and str(inv) or "" )
elif i==1 or i==5: # today or due-date
d = Date() # today
if i==5: d += 30
parms.append( d.format("%a") )
else:
parms.append( i==6 and ST_PENDING or ST_NORMAL )
return parms
