I think that implicit conversion of "auth_group.role = 'Operador'" to a 1
is a Sqlite-specific thing. What you want to use here is case:
query = db().select(
db.auth_user.id,
db.auth_user.username,
db.auth_user.canceled_on,
db.auth_user.canceled_by,
(db.auth_group.role == 'Operador').case(1, 0).sum().with_alias('operador
'),
(db.auth_group.role == 'Verificador').case(1, 0).sum().with_alias('
verificador'),
(db.auth_group.role == 'Supervisor').case(1, 0).sum().with_alias('
Supervisor'),
left=(
db.auth_membership.on(db.auth_user.id == db.auth_membership.user_id
),
db.auth_group.on(db.auth_group.id == db.auth_membership.group_id),
),
groupby=[db.auth_user.username, db.auth_user.id],
orderby=db.auth_user.username,
)
On Monday, 1 April 2019 23:41:51 UTC+1, João Matos wrote:
>
> Hello,
>
> I have this SELECT in SQLite
>
> result = db.executesql(
> "SELECT auth_user.id, auth_user.username, "
> "auth_user.canceled_on, "
> "auth_user.canceled_by, "
> "SUM(auth_group.role = 'Operador') operador, "
> "SUM(auth_group.role = 'Verificador') verificador, "
> "SUM(auth_group.role = 'Supervisor') supervisor "
> "FROM auth_user "
> "LEFT JOIN auth_membership ON auth_user.id =
> auth_membership.user_id "
> "LEFT JOIN auth_group ON auth_group.id =
> auth_membership.group_id "
> "GROUP BY username ORDER BY username"
> )
>
> and would like to convert it to web2py's DAL.
> I made this
>
> query = db().select(
> db.auth_user.id,
> db.auth_user.username,
> db.auth_user.canceled_on,
> db.auth_user.canceled_by,
> left=(
> db.auth_membership.on(db.auth_user.id == db.auth_membership.
> user_id),
> db.auth_group.on(db.auth_group.id == db.auth_membership.group_id),
> ),
> groupby=db.auth_user.username,
> orderby=db.auth_user.username,
> )
>
> but I can't find any way to integrate the sums.
>
> Does anyone know how to do it?
>
> Thanks,
>
> JM
>
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