Thanks a lot, Anthony.
I use to check the framework code before posting questions, and when I saw
this in the callback method of the autocomplete widget:
def callback(self):
if self.keyword in self.request.vars:
field = self.fields[0]
if type(field) is Field.Virtual:
records = []
table_rows = self.db(self.db[field.tablename]).select(orderby=
self.orderby)
I guessed wrongly that virtual fields were supported.
Thank you and best regards.
El lunes, 5 de junio de 2017, 17:11:37 (UTC+2), Anthony escribió:
>
> You cannot use autocomplete to search a virtual field. It runs a database
> query, so the field must exist in the database.
>
> Anthony
>
> On Monday, June 5, 2017 at 9:23:51 AM UTC-4, Carlos Kitu wrote:
>>
>> Good afternoon,
>> I'm trying to create an autocomplete field to search in the table
>> db.auth_user, but the search must be done with the full name.
>> As db.auth_user has two separate fields (first_name, and last_name), I
>> created a virtual field to compose both fields:
>>
>> db.auth_user.full_name = Field.Virtual('full_name', lambda row: '%s %s'
>> %(row.auth_user.first_name, row.auth_user.last_name))
>>
>> Then, I used the autocomplete widget in a field:
>>
>> db.define_table('my_table',
>> Field('my_user', 'reference auth_user', notnull=True, unique=False,
>> label='User'),
>> ...
>> )
>>
>>
>> db.my_table.my_user.widget = SQLFORM.widgets.autocomplete(
>> request, db.auth_user.full_name, id_field=db.auth_user.id, db=db,
>> at_beginning=False, limitby=(0, 10), min_length=2)
>>
>>
>>
>> And I get this error when creating a new form:
>>
>> <type 'exceptions.AttributeError'> 'DAL' object has no attribute 'None'
>> Versión
>> web2py™ Version 2.14.6-stable+timestamp.2016.05.10.00.21.47Rastreo
>>
>> 1.
>> 2.
>> 3.
>> 4.
>> 5.
>> 6.
>> 7.
>> 8.
>> 9.
>> 10.
>> 11.
>> 12.
>> 13.
>> 14.
>> 15.
>> 16.
>> 17.
>> 18.
>> 19.
>> 20.
>> 21.
>> 22.
>>
>> Traceback (most recent call last):
>> File "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/restricted.py",
>> line 227, in restricted
>> exec ccode in environment
>> File
>> "/home/clm/Documentos/p/productos/web2py_2.14.6/applications/VREscalas/controllers/default.py"
>>
>> <https://127.0.1.1:8000/admin/default/edit/VREscalas/controllers/default.py>,
>> line 1119, in <module>
>> File "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/globals.py",
>> line 417, in <lambda>
>> self._caller = lambda f: f()
>> File "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/tools.py", line
>> 4241, in f
>> return action(*a, **b)
>> File
>> "/home/clm/Documentos/p/productos/web2py_2.14.6/applications/VREscalas/controllers/default.py"
>>
>> <https://127.0.1.1:8000/admin/default/edit/VREscalas/controllers/default.py>,
>> line 140, in programas
>> lambda row: A('resumen', _href=URL(
>> File "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/sqlhtml.py",
>> line 2307, in grid
>> create_form = SQLFORM(table, **sqlformargs)
>> File "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/sqlhtml.py",
>> line 1288, in __init__
>> inp = field.widget(field, default)
>> File "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/sqlhtml.py",
>> line 748, in __call__
>> table_rows =
>> self.db(self.db[self.fields[0].tablename]).select(orderby=self.orderby)
>> File
>> "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/packages/dal/pydal/base.py",
>> line 914, in __getitem__
>> return self.__getattr__(str(key))
>> File
>> "/home/clm/Documentos/p/productos/web2py_2.14.6/gluon/packages/dal/pydal/base.py",
>> line 921, in __getattr__
>> return BasicStorage.__getattribute__(self, key)
>> AttributeError: 'DAL' object has no attribute 'None':
>>
>>
>> I printed in console the self.fields[0]:
>> self.fields {'comment': None, 'represent': <function <lambda> at
>> 0x7f6c907310c8>, 'widget': None, 'name': 'full_name', 'f': <function
>> <lambda> at 0x7f6c90731050>, 'requires': None, 'readable': True, 'label':
>> 'Full
>> name', 'writable': False, 'filter_out': None, 'tablename': None,
>> 'formatter': <function IDENTITY at 0x7f6c9e090140>, 'type': 'string'}
>>
>> It happens that the db.auth_user.full_name.tablename is None, i.e., the
>> virtual field have no tablename attibute as the autocomplete code seems to
>> expect.
>> Should I open a ticket?
>>
>> Thank you and best regards.
>>
>
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