My workaround is to change this:
location = db(db.location.id == loc_id).select(db.location.ALL,
db.location.point.st_x().
with_alias('latitude'),
db.location.point.st_y().
with_alias('longitude')).first()
into this:
row = db(db.location.id == loc_id).select(db.location.ALL,
db.location.point.st_x().
with_alias('latitude'),
db.location.point.st_y().
with_alias('longitude')).first()
location = row.location
location.latitude = row.latitude
location.longitude = row.longitude
It works but it's a little kludgy as far as I'm concerned. Anyone have a
cleaner solution?
On Tuesday, December 31, 2013 7:00:10 PM UTC-5, User wrote:
> What is the proper way to select all fields plus a few additional
> calculated fields? Here is my basic query with no calculated field
>
> location = db(db.location.id == loc_id).select().first()
>
>
> This query returns location as a <class 'gluon.dal.Row'> object with
> fields for the location table as attributes. With this I can access
> location.address for example.
>
> Now to add calculated fields to get the geo spatial coordinates from the
> point field, I'm trying this:
>
> location = db(db.location.id == loc_id).select(db.location.ALL,
> db.location.point.st_x().
> with_alias('latitude'),
> db.location.point.st_y().
> with_alias('longitude')).first()
>
>
> Is this the proper way? This returns a <class 'gluon.dal.Row'> object with
> a "location" field (which is in turn also a Row object) and "latitude" and
> "longitude" fields.
>
> Now in order to access the address field I must do
> location.location.address
>
> How can make it so I can access the fields like location.address and
> location.latitude?
>
>
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