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Unable to resolve symbol: *db* #83

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Unable to resolve symbol: *db*#83
@GilraenBurland

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@GilraenBurland
GilraenBurland
opened on Sep 9, 2015

Hi there,

I tried to use lobos and followed the instructions in the README.md but I am getting the following error:

Exception in thread "main" java.lang.RuntimeException: Unable to resolve symbol: *db* in this context, compiling:(lobos/connectivity/jdbc_2.clj:14:1)
    at clojure.lang.Compiler.analyze(Compiler.java:6543)
    at clojure.lang.Compiler.access$300(Compiler.java:38)
    at clojure.lang.Compiler$LetExpr$Parser.parse(Compiler.java:6129)
    at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723)
    at clojure.lang.Compiler.analyze(Compiler.java:6524)
    at clojure.lang.Compiler.analyze(Compiler.java:6485)
    at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861)
    at clojure.lang.Compiler$FnMethod.parse(Compiler.java:5296)
    at clojure.lang.Compiler$FnExpr.parse(Compiler.java:3925)
    at clojure.lang.Compiler.analyzeSeq(Compiler.java:6721)
    at clojure.lang.Compiler.analyze(Compiler.java:6524)
    at clojure.lang.Compiler.eval(Compiler.java:6779)
    at clojure.lang.Compiler.load(Compiler.java:7227)
    at clojure.lang.RT.loadResourceScript(RT.java:371)
    at clojure.lang.RT.loadResourceScript(RT.java:362)
    at clojure.lang.RT.load(RT.java:446)
    at clojure.lang.RT.load(RT.java:412)
    at clojure.core$load$fn__5448.invoke(core.clj:5866)
    at clojure.core$load.doInvoke(core.clj:5865)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5671)
    at clojure.core$load_lib$fn__5397.invoke(core.clj:5711)
    at clojure.core$load_lib.doInvoke(core.clj:5710)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:632)
    at clojure.core$load_libs.doInvoke(core.clj:5749)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:632)
    at clojure.core$require.doInvoke(core.clj:5832)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at lobos.connectivity$eval952.invoke(connectivity.clj:17)
    at clojure.lang.Compiler.eval(Compiler.java:6782)
    at clojure.lang.Compiler.load(Compiler.java:7227)
    at clojure.lang.RT.loadResourceScript(RT.java:371)
    at clojure.lang.RT.loadResourceScript(RT.java:362)
    at clojure.lang.RT.load(RT.java:446)
    at clojure.lang.RT.load(RT.java:412)
    at clojure.core$load$fn__5448.invoke(core.clj:5866)
    at clojure.core$load.doInvoke(core.clj:5865)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5671)
    at clojure.core$load_lib$fn__5397.invoke(core.clj:5711)
    at clojure.core$load_lib.doInvoke(core.clj:5710)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:632)
    at clojure.core$load_libs.doInvoke(core.clj:5753)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:632)
    at clojure.core$require.doInvoke(core.clj:5832)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at lobos.core$eval11$loading__5340__auto____12.invoke(core.clj:9)
    at lobos.core$eval11.invoke(core.clj:9)
    at clojure.lang.Compiler.eval(Compiler.java:6782)
    at clojure.lang.Compiler.eval(Compiler.java:6771)
    at clojure.lang.Compiler.load(Compiler.java:7227)
    at clojure.lang.RT.loadResourceScript(RT.java:371)
    at clojure.lang.RT.loadResourceScript(RT.java:362)
    at clojure.lang.RT.load(RT.java:446)
    at clojure.lang.RT.load(RT.java:412)
    at clojure.core$load$fn__5448.invoke(core.clj:5866)
    at clojure.core$load.doInvoke(core.clj:5865)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5671)
    at clojure.core$load_lib$fn__5397.invoke(core.clj:5711)
    at clojure.core$load_lib.doInvoke(core.clj:5710)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:632)
    at clojure.core$load_libs.doInvoke(core.clj:5749)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:634)
    at clojure.core$use.doInvoke(core.clj:5843)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure_web_test.main$eval5$loading__5340__auto____6.invoke(main.clj:1)
    at clojure_web_test.main$eval5.invoke(main.clj:1)
    at clojure.lang.Compiler.eval(Compiler.java:6782)
    at clojure.lang.Compiler.eval(Compiler.java:6771)
    at clojure.lang.Compiler.load(Compiler.java:7227)
    at clojure.lang.Compiler.loadFile(Compiler.java:7165)
    at clojure.main$load_script.invoke(main.clj:275)
    at clojure.main$script_opt.invoke(main.clj:337)
    at clojure.main$main.doInvoke(main.clj:421)
    at clojure.lang.RestFn.invoke(RestFn.java:436)
    at clojure.lang.Var.invoke(Var.java:388)
    at clojure.lang.AFn.applyToHelper(AFn.java:160)
    at clojure.lang.Var.applyTo(Var.java:700)
    at clojure.main.main(main.java:37)
Caused by: java.lang.RuntimeException: Unable to resolve symbol: *db* in this context
    at clojure.lang.Util.runtimeException(Util.java:221)
    at clojure.lang.Compiler.resolveIn(Compiler.java:7019)
    at clojure.lang.Compiler.resolve(Compiler.java:6963)
    at clojure.lang.Compiler.analyzeSymbol(Compiler.java:6924)
    at clojure.lang.Compiler.analyze(Compiler.java:6506)
    ... 85 more

My source files are:

src/lobos/config.clj

(ns lobos.config
  (:use lobos.connectivity))

(def db
  {:classname   "org.h2.Driver"
   :subprotocol "h2"
   :user "sa"
   :password ""
   :subname "//mem:test"})

(open-global db)

src/lobos/helpers.clj

(ns lobos.helpers
  (:refer-clojure :exclude [bigint boolean char double float time])
  (:use (lobos schema)))

(defn surrogate-key [table]
  (integer table :id :auto-inc :primary-key))

(defn timestamps [table]
  (-> table
      (timestamp :updated_on)
      (timestamp :created_on (default (now)))))

(defn refer-to [table ptable]
  (let [cname (-> (->> ptable name butlast (apply str))
                  (str "_id")
                  keyword)]
    (integer table cname [:refer ptable :id :on-delete :set-null])))

(defmacro tbl [name & elements]
  `(-> (table ~name)
       (timestamps)
       ~@(reverse elements)
       (surrogate-key)))

src/lobos/migrations.clj

(ns lobos.migrations
  (:refer-clojure :exclude [alter drop bigint boolean char double float time])
  (:use (lobos [migration :only [defmigration]] core schema config helpers)))

(defmigration add-users-table
              (up [] (create
                       (tbl :users
                            (varchar :name 100 :unique)
                            (check :name (> (length :name) 1)))))
              (down [] (drop (table :users))))

(defmigration add-posts-table
              (up [] (create
                       (tbl :posts
                            (varchar :title 200 :unique)
                            (text :content)
                            (refer-to :users))))
              (down [] (drop (table :posts))))

(defmigration add-comments-table
              (up [] (create
                       (tbl :comments
                            (text :content)
                            (refer-to :users)
                            (refer-to :posts))))
              (down [] (drop (table :comments))))

src/project/main.clj

(ns project.main
  (use lobos.core))

(lobos.core/migrate)

I just copy-pasted the code from the readme.

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