Wow - that is pretty cool!
Alan
On Tue, May 28, 2013 at 11:41 PM, zcaudate <z...@caudate.me> wrote:
>
>
> 6. Insertion of `arbitrarily` formatted data:
> a - books containing users:
>
> (adi/insert! ds [{:book {:name "Charlie and the Chocolate Factory"
> :author "Roald Dahl"
> :accounts #{{:user "adi3" :password "hello3"
> :credits 100}
> {:user "adi4" :password "hello4"
> :credits 500}
> {:user "adi5" :password "hello5"
> :credits 500}}}}
> {:book {:name "The Book and the Sword"
> :author "Louis Cha"
> :accounts users}}])
>
>
> b. users containing books
>
> (adi/insert! ds
> [{:account {:user "adi1" :password "hello1"}}
> {:account {:user "adi2" :password "hello2"
> :books #{{:name "The Count of Monte Cristo"
> :author "Alexander Dumas"}
> {:name "Tom Sawyer"
> :author "Mark Twain"}
> {:name "Les Misérables"
> :author "Victor Hugo"}}}}])
>
>
> 7. Expressive Search
>
> ;; Full expressiveness on searches:;;(->> ;; Find the teacher that teaches a
> student called Harry
> (adi/select class-datastore {:teacher/teaches/students/name "Harry"})
> (map #(-> % :teacher :name))) ;=> ("Mr. Anderson" "Mr. Carpenter" "Mr.
> Blair")
> (->> ;; Find all students taught by Mr Anderson
> (adi/select class-datastore {:student/classes/teacher/name "Mr. Anderson" })
> (map #(-> % :student :name))) ;=> ("Ivan" "Bobby" "Erin" "Kelly"
> ;; "David" "Harry" "Francis" "Jack")
> (->> ;; Find all the students that have class with teachers with fish
> (adi/select class-datastore {:student/classes/teacher/pets :fish })
> (map #(-> % :student :name)) sort);=> ("Anna" "Charlie" "David" "Francis"
> "Harry" "Ivan" "Jack" "Kelly")
>
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