[postmodern-devel] Quoted lists with QUERY or SQL
Marijn Haverbeke
marijnh at gmail.com
Tue Nov 30 08:36:56 UTC 2010
> Is there a reason that query doesn't support evaluated lists?
Yes. These macros also accept string input, and assume that everything
that's not a list starting with a keyword will evaluate to a string.
> If so, how would you recommend this be done?
You can either add an sql-compile around your sql-expr, which does a
run-time compilation of an s-sql expression (normally they happen at
compile time), or do something like this:
(defmethod count-persistent-objects ((store list) class-name
&key (where t) &allow-other-keys)
(with-connection store
(sql (:select (:count '*) :from class-name :where
(:raw (if (stringp where) where (sql-compile where)))))))
Best,
Marijn
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