Solved!
The problem was ignoring the connection with table_1: table_3 and 4 names
are equal to the db.table_1.name values.
The following code is working.
The only things I don't understand is why it is necessary to use the "try:"
syntax.
Without it, even though the link is correctly created and returned, the
line "test= ... " is creating an error.
Can someone explain me why?
Thanks!
Nicola
def index():
grid=SQLFORM.grid(db.table_2, create=False, editable=True, searchable=
False, details= True, csv=False,links=[lambda row: getLink(row)])
return locals()
def getLink(row):
try:
test=db(db.table_1.id==row.ref_t1).select(db.table_1.name).first().
name
except:
link=''
else:
if test =='table_3':
tb=db.table_3
else:
tb=db.table_4
ID=db(tb.ref_tb2==row.id).select(tb.id).first().id
link= A('modify',_href=URL('index',args=['edit',test,ID],
user_signature=True),_class='btn btn-default')
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