local-conn vs conn?

[atroche]

Hi @thegeez! How come you have a conn and a local-conn that both get transacted on when e.g. the db function remove-item is called?

[thegeez]

Hi @atroche,

The todo-app front-end of clj-crud was made to work both as a version with a database back-end and as a stand-alone in-browser only version.

In services.cljs the actions are handled with

(defmulti handle
  (fn [event args db conn] event))

In client_services.cljs the actions are handled with

(defmulti handle
  (fn [event args db conn local-conn] event))

services.cljs is used for the version with a server back-end and does all the requests over HTTP. client_services.cljs is used for a stand-alone front-end without any persistence. The local-conn in client_services.cljs is the substitute for the database on the server in services.cljs.

conn is the state on the front-end that the renderer uses and where the user interactions end up in. It would have been possible to re-use conn for local-conn but for modularity they are separate.