you would have to add a new constraint at the database level like this:
query="ALTER TABLE %s ADD CONSTRAINT %s UNIQUE (amcno,unitid);"
%(tablename,constraintname)
result=db.executesql(query)
here a postgresql example to set the new constraint in a controller:
def setconstraint():
tablename='public.tablename'
constname='constraintname'
try:
query="ALTER TABLE %s ADD CONSTRAINT %s UNIQUE (amcno,unitid);"
%(tablename,constname)
result=db.executesql(query)
except:
result="ERROR : constraint already exists"
finally:
return locals()
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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