something like this is not work either
e.g.
table= db.test
search = request.vars.search
field_objects = [f for f in table]
if search:
for field_object in field_objects:
rows = db(field_object.contains(search)).select()

Traceback

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Traceback (most recent call last):
  File "C:\web2py\gluon\restricted.py", line 227, in restricted
    exec ccode in environment
  File "C:/web2py/applications/freelancer/controllers/service.py" 
<https://127.0.0.1/admin/default/edit/freelancer/controllers/service.py>, line 
19, in <module>
  File "C:\web2py\gluon\globals.py", line 412, in <lambda>
    self._caller = lambda f: f()
  File "C:/web2py/applications/freelancer/controllers/service.py" 
<https://127.0.0.1/admin/default/edit/freelancer/controllers/service.py>, line 
13, in browse
    return freelancer_default.show_0(table, link_page)
  File "applications\freelancer\modules\freelancer_default.py", line 59, in 
show_0
    rows = current.db(field_object.contains(search)).select(limitby = limitby,
  File "C:\web2py\gluon\packages\dal\pydal\objects.py", line 1247, in contains
    raise SyntaxError("contains used with incompatible field type")
SyntaxError: contains used with incompatible field type


any hints or suggestion to search all the fields in database table?

best regards,
stifan

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