gistfile1.clj

(ns clojure-couchdb
  (:use com.ashafa.couchdb
        (clojure.contrib [test-is :as test-is])))

(set-couchdb-config! {:language "clojure"})

(def test-doc-1 {:name  "John Smith"
                 :email "[email protected]"
                 :score 65})

(def test-doc-2 {:name  "Jane Thompson"
                 :email "[email protected]"
                 :score 98})

(def test-doc-3 {:name  "Robert Jones"
                 :email "[email protected]"
                 :score 80})

(def test-doc-4 {:name  "Sarah Parker"
                 :email "[email protected]"
                 :score 59})

(def names-with-score-over-70-view (with-clj-map-reduce 
                                    #(if (> (:score %) 70) [nil (:name %)])))

(def sum-of-all-scores-view (with-clj-map-reduce 
                             (fn [doc] [nil (:score doc)])           ;map 
                             (fn [keys values _] (apply + values)))) ;reduce

(defmacro defdbtest [name & body]
  `(deftest ~name
    (try
     (create-database "test_db")
     (with-db "test_db" ~@body)
     (finally
      (delete-database "test_db")))))

(defdbtest create-a-document 
  (is (contains? (create-doc test-doc-1) :id)))

(defdbtest create-a-document-with-id 
  (is (= "my_id" (:id (create-doc-with-id "my_id" test-doc-2)))))

(defdbtest get-a-document
  (let [doc-meta (create-doc test-doc-3)]
    (is (= (test-doc-3 :name) (:name (get-doc (doc-meta :id)))))))

(defdbtest update-a-document
  (let [id (:id (create-doc test-doc-4))]
    (update-doc (get-doc id) {:email "[email protected]"})
    (is (= "[email protected]" (:email (get-doc id))))))

(defdbtest update-a-document-with-a-function
  (let [id (:id (create-doc test-doc-4))]
    (update-doc (get-doc id) (partial + 4) [:score])
    (is (= 63 (:score (get-doc id))))))

(defdbtest get-all-documents-meta 
  (create-doc test-doc-1)
  (create-doc test-doc-2)
  (create-doc test-doc-3)
  (is (= 3 (:total_rows (get-all-docs)))))

(defdbtest get-all-documents-using-query-params
  (create-doc-with-id 1 test-doc-1)
  (create-doc-with-id 2 test-doc-2)
  (create-doc-with-id 3 test-doc-3)
  (is (= "Robert Jones" (-> (get-all-docs {:include_docs true :descending true})
                            :rows first :doc :name))))

(defdbtest create-a-design-view 
  (let [design-doc-meta (create-view "users" :names-with-score-over-70 names-with-score-over-70-view)]
    (is (map? (-> (get-doc (design-doc-meta :id)) :views :names-with-score-over-70)))))

(defdbtest use-a-design-view-with-only-map 
  (create-doc test-doc-1)
  (create-doc test-doc-2)
  (create-doc test-doc-3)
  (create-doc test-doc-4)
  (create-view "users" :names-with-score-over-70 names-with-score-over-70-view)
  (is (= #{"Robert Jones" "Jane Thompson"}
         (set (map :value (:rows (get-view "users" :names-with-score-over-70)))))))

(defdbtest use-a-design-view-with-both-map-and-reduce 
  (create-doc test-doc-1)
  (create-doc test-doc-2)
  (create-doc test-doc-3)
  (create-doc test-doc-4)
  (create-view "scores" :sum-of-all-scores sum-of-all-scores-view)
  (is (= 302 (-> (get-view "scores" :sum-of-all-scores) :rows first :value))))

(defdbtest use-a-tempoary-view
  (create-doc test-doc-1)
  (create-doc test-doc-2)
  (create-doc test-doc-3)
  (create-doc test-doc-4)
  (is (= #{"[email protected]" "[email protected]"}
         (set (map :value (:rows (get-tempoary-view 
                                  (with-clj-map-reduce
                                   (fn [doc] (if (re-find #"example\.com$" (:email doc))
                                              [nil (:email doc)]))))))))))

(defdbtest use-a-tempoary-view-using-javascript-view-server
  (create-doc test-doc-1)
  (create-doc test-doc-2)
  (create-doc test-doc-3)
  (create-doc test-doc-4)
  (is (= #{"[email protected]" "[email protected]"}
         (set (map :value (:rows (get-tempoary-view 
                                  {:language "javascript"
                                   :map      "function(doc){if(doc.email.indexOf('test.com')>0)emit(null,doc.email);}"})))))))


(run-tests)