CODEWITHSUNDEEP
web-applicationsclojureclojurescriptpedestal
Catalyst
Catalyst

Reputation: 3227

Finding a namespace from lein repl

EDIT : SOLVED My issue was coming from two things -- I had a syntax error in the defmacro somewhere. I deleted it and wrote a small function that I could then access (only after restarting the repl). The big second-issue was that I was ignorant to the fact repl needed to be restarted to recognize any changes I had made. Would never have figured this out without the concrete answer given below =).

I have been working through the pedestal tutorial on github, and it recommends testing some things via repl - my problem is that I can't find the namespace/ macros or functions I am interested in working with.

user=> (require '(junkyard-client.html-templates))
nil
user=> (def t (junkyard-client-templates))

user=> CompilerException java.lang.RuntimeException: Unable to resolve symbol: 
  junkyard-client-templates in this context, compiling:
  (C:\Users\Ben\AppData\Local\Temp\form-init3290053673397861360.clj:1:8)

I have tried other things syntactically, such as (require 'junkyard-client.html-templates). This is at v2.0.10 in the pedestal tutorial:https://github.com/pedestal/app-tutorial/wiki/Slicing-Templates

EDIT: this is what I am trying to get to

(ns junkyard-client.html-templates
  (:use [io.pedestal.app.templates :only [tfn dtfn tnodes]]))

(defmacro junkyard-client-templates
  []
  {:junkyard-client-page (dtfn (tnodes "junkyard-client.html" "hello") #{:id})
   :other-counter (dtfn (tnodes "tutorial-client.html" "other-counter") #{:id}
  })

problem stage https://github.com/Sammons/clojure-projects/tree/d9e0b4f6063006359bf34a419deb31a879c7a211/pedestal-app-tutorial/junkyard-client

solved stage

Upvotes: 1

Views: 599

Answers (1)

Jared314
Jared314

Reputation: 5231

require makes the namespace available within your current namespace, but does not make the symbols directly available. You still need to namespace qualify the symbols, unless you use :refer or use.

(require '[junkyard-client.html-templates])

(def t (junkyard-client.html-templates/junkyard-client-templates))

It might be preferable to alias the namespace or refer the specific symbol you are using, for convenience.

Alias:

(require '[junkyard-client.html-templates :as templates])

(def t (templates/junkyard-client-templates))

Refer:

(require '[junkyard-client.html-templates :refer [junkyard-client-templates]])

(def t (junkyard-client-templates))

Note: require and :refer is generally preferred over use.

Upvotes: 1

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