I am working on a query that has case statement that gives values based on
the age of a field. I have it working, but I just want to see if this is
the best way to accomplish it.
Sequel.case([
[Sequel.expr {Sequel.function(:age, :last_seen) <=
Sequel.lit("interval '1 months'")}, 10],
[Sequel.expr {Sequel.function(:age, :last_seen) <=
Sequel.lit("interval '3 months'")}, 5]
], 0)
I'm giving 10 points to last_seen less than 1 month ago, 5 points less than
3 months ago, and zero points otherwise. The generated case statement
would look something like:
case
when age(last_seen) <= interval '1 month' then 10
when age(last_seen) <= interval '3 months' then 5
else 0
end
I would prefer to eliminate the Sequel.lit("interval..") method calls if I
can (is this something the pg_interval plugin would handle).
Does this seem like the best approach?
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