Here's some warts, when working with boolean fields from sql databases. (if (with-db (sql-val ["select convert(bit, 0)"])) "Yes", "no")
will return "Yes". This is because contrib.sql returns java Booleans, not clojure tru/false. (if (= false (with-db (sql-val ["select null"]))) "Yes", "no") will return "no". This is because null is not false in clojure. So the only way to correctly deal with booleans from sql databases is to explicitly test for true: (if (= true (with-db (sql-val ["select null"]))) "Yes", "no") or (if (not (= true (with-db (sql-val ["select null"])))) "Yes", "no") That's awkward, especially for those of us, coming from Common Lisp. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
