Using Clojure to Marry Neo4j and Open Democracy
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David Simons, a software developer, discusses using Neo4j for analyzing election results. He outlines a query function for retrieving data about party participation and votes in elections by year and area. The document also includes links to projects and contact information.
![(let [env (str (get (System/getenv) "GRAPHENEDB_URL") "/db/data")]
(defn connection-string [] (nr/connect! env)))
(defn run-query [query]
(connection-string)
(cy/tquery query)
)](https://image.slidesharecdn.com/neo4j-election-140529042056-phpapp02/85/Using-Clojure-to-Marry-Neo4j-and-Open-Democracy-13-320.jpg)
![(defn wardResults [year, areaId] (run-query (
"MATCH (pa:party)<-[member_of]-
(p:politician)-[r:stood_in]->
(e:election)-[held_in]->(a:area),
(e:election)-[during]->(y:year)
WHERE y.name="" year "" AND id(a)=" areaId "
RETURN id(p), pa.name AS partyName, SUM(r.votes) AS numVotes")))](https://image.slidesharecdn.com/neo4j-election-140529042056-phpapp02/85/Using-Clojure-to-Marry-Neo4j-and-Open-Democracy-14-320.jpg)
Using Clojure to Marry Neo4j and Open Democracy
- 2. Who am I? • David Simons • @SwamWithTurtles • Software Developer • … for a bespoke solutions provider Softwire (hint: we’re recruiting) • … for fun
- 10. ring-clojure
- 13. (let [env (str (get (System/getenv) "GRAPHENEDB_URL") "/db/data")] (defn connection-string [] (nr/connect! env))) (defn run-query [query] (connection-string) (cy/tquery query) )
- 14. (defn wardResults [year, areaId] (run-query ( "MATCH (pa:party)<-[member_of]- (p:politician)-[r:stood_in]-> (e:election)-[held_in]->(a:area), (e:election)-[during]->(y:year) WHERE y.name="" year "" AND id(a)=" areaId " RETURN id(p), pa.name AS partyName, SUM(r.votes) AS numVotes")))