db.define_table("servicos",
                Field('empresa', 'reference empresa', label='Empresa'),
                Field('cliente', 'reference cliente', label='cliente'),
                Field("contrat_ini","date",label='Inicio do Contrato'),
                Field("contrat_fim","date", label='Fim do Contrato'),
                Field("tempo_ctr","integer")



def ver_todos_projetos():
    db.servicos.id.readable = False
    query = ((db.servicos.id > 0))
    trabalhos = db(db.servicos.contrat_fim == None).select()
    for r in trabalhos:
        db(db.servicos.id == r.id).update(tempo_ctr = (contrat-fim - 
contrat_ini).date)
        fields = (db.servicos.id, db.servicos.empresa, 
db.servicos.contrato, db.servicos.cliente, db.servicos.bacia, 
db.servicos.contrat_ini, db.servicos.contrat_fim, db.servicos.tempo_ctr)
        headers = {'servicos.id': 'ID',
               'servicos.empresa': 'Empresa',
               'servicos.cliente': 'Cliente',
               'servicos.contrato': 'Contrato',
               'servicos.bacia': 'Bacia',
               'servicos.contrat_ini': 'Data Início Contrato',
               'servicos.contrat_fim': 'Data do Fim do Contrato',
               'servicos.tempo_ctr': 'Tempo em Dias'}
    grid = SQLFORM.grid(query=query, fields=fields, headers=headers, 
maxtextlength=64, paginate=25, deletable= False, user_signature = False)
    return dict(grid=grid)

Que estou fazendo errado?????

Alguma ajuda?

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- http://github.com/web2py/web2py (Source code)
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