In auth.signature, the "created_by" field has a "default" attribute, which
is a function (called "lazy_user") that returns auth.user_id. At the point
at which the value of the compute field is computed, the row object passed
to the compute function simply includes the "lazy_user" function as the
value of the "created_by" field -- the function has not been called and
returned the auth.user_id value yet (that doesn't happen until after the
compute fields are computed). In other words, compute field values are
calculated *before* default functions are called, so compute functions
should not depend on the values of other fields whose defaults are set via
a function.
In this case, you have two alternatives:
ret.append(record["created_by"]()) # This calls the lazy_user function,
which returns auth.user_id
or:
ret.append(auth.user_id) # Just use auth.user_id directly.
Anthony
On Wednesday, June 28, 2017 at 12:30:22 PM UTC-4, Ramos wrote:
>
> Hello i added an authors and readers computed fields to my table
>
> db.define_table(
> 'entities',
> ...
> Field('authors',compute= lambda r:authors(r)),
> ...
> )
>
> when i save a record i get this
> :
> authors :
> [*<function lazy_user at 0x2d82a28>*]
> created_by :
> 4L
> created_on :
> datetime.datetime(2017, 6, 28, 16, 16, 24)
> delete_record :
> <pydal.helpers.classes.RecordDeleter object at 0x32142d0>
> description :
> entity :
> saw
> event :
> 1903
> id :
> 401L
> is_active :
> True
> last_error :
> modified_by :
> 4L
> modified_on :
> datetime.datetime(2017, 6, 28, 16, 16, 24)
> readers :
> [2L, 1L, 5L, 4L,* <function lazy_user at 0x2d82a28>*]
> status :
> 8L
> type :
> 1L
> update_record :
> <pydal.helpers.classes.RecordUpdater object at 0x3214290>
> uuid :
> c12ecf01-0d7b-4334-81c9-b7808c8cf7f9
>
> if i go to admin and edit the record and save again the fuction lazy_user
> goes away..
> Why is this and how to make it save properly in my code?
>
>
> my code...
>
> def *authors*(record):
> ret=[]
> row=db.status(id=record["status"])
> rule=db.rules(workflow=row["workflow"],step=record["status"])
> users=get_userIds(rule)
> for user in users:
> if not user in ret:
> ret.append(user)
> if ret==[]:
> ret.append(record["created_by"])
> return str(ret)
>
> def get_userIds(rule):
> ret=[]
> for membership in rule["authors"]:
> temp=db(db.auth_membership.group_id==membership).select()
> for r in temp:
> ret.append(r["id"])
> return ret
>
>
> Regards
>
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