Set operations in DBIx::Class
What is the best way to perform set operations using DBIx::Class? I saw that one solution would be to create a Result Source based on my query, but my c开发者_StackOverflowonditions will be defined by the user and I don know if the best answer is to create the result source on the fly.
Basically i need to translate this type of query to DBIC where code
, attr_name
and value
is defined by the user:
SELECT pid FROM product WHERE code = 48
INTERSECT
(
( SELECT pid FROM attr WHERE attr_name = 'color' AND value = 'blue'
INTERSECT
SELECT pid FROM attr WHERE attr_name = 'size' AND value = 'big'
)
UNION
( SELECT pid FROM attr WHERE attr_name = 'color' AND value = 'green'
INTERSECT
SELECT pid FROM attr WHERE attr_name = 'size' AND value = 'small'
)
)
Could DBIx::Class::Helper::ResultSet::SetOperations be what you need?
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