You could do both queries within the lambda and put the results together
with string formatting:
lambda id, r: '%s %s' % (
db((db.RelationshipType.id==id) &
(db.RelationshipSubjectArea.id == db.RelationshipType.
relationshipSubjectAreaID) &
(db.RelationshipSubjectArea.subjectAreaID == db.SubjectArea.id)
).select().first().SubjectArea.subjectAreaCode,
db.RelationshipType(id).relationshipTypeCode
)
But to avoid doing the second query unnecessarily (since you already get
that value in the first query), you can instead use a separate function:
def rtid_represent(id, r):
row = db((db.RelationshipType.id==id) &
(db.RelationshipSubjectArea.id == db.RelationshipType.
relationshipSubjectAreaID) &
(db.RelationshipSubjectArea.subjectAreaID == db.SubjectArea.id)
).select().first()
return '%s %s' % (row.SubjectArea.subjectAreaCode, row.RelationshipType.
relationshipTypeCode)
db.RelationshipRoleType.relationshipTypeID.represent = rtid_represent
Anthony
On Monday, June 10, 2013 3:19:08 AM UTC-4, Alex Glaros wrote:
>
> I'm trying to concatenate the results of two represents clauses for the
> same field: "relationshipTypeID" The first "represents" clause returns
> "subjectAreaCode" and the second returns "relationshipTypeCode". Without
> all the queries, this could normally be accomplished by '%(field_1)s
> %(field_2)s' format, but one of my represents uses a full query.
>
> I can't stack the "represents" clauses because the last one overwrites the
> first one. How can I get both fields to display whenever the
> "relationshipTypeID" field is used? Here are the two "represents" clauses:
>
> db.RelationshipRoleType.relationshipTypeID.represent = lambda id, r: db((
> db.RelationshipType.id==id) & (db.RelationshipSubjectArea.id == db.
> RelationshipType.relationshipSubjectAreaID) &
> (db.RelationshipSubjectArea.subjectAreaID
> == db.SubjectArea.id)).select().first().SubjectArea.subjectAreaCode
>
> db.RelationshipRoleType.relationshipTypeID.represent = lambda id,row: db.
> RelationshipType(id).relationshipTypeCode
>
> Thanks,
>
> Alex Glaros
>
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