(get {:username "a"} "username") nil (get {:username "a"} :username) "a" *(get {'username "a"} :username)* nil (get {'username "a"} 'username) "a" (get {:username "a"} 'username) nil *(get {'username "a"} "username")* nil
On Fri, Oct 19, 2012 at 6:26 PM, larry google groups < lawrencecloj...@gmail.com> wrote: > >you have `username` a symbol as the key in your map, but you are > >looking for `:username` they keyword as a key > > At some point I tried: > > (get new-user-entry "username") > > but that had the same result. > > Username is clearly a key, yes? > > What would you suggest? > > > > > > On Friday, October 19, 2012 12:06:10 PM UTC-4, red...@gmail.com wrote: > >> you have `username` a symbol as the key in your map, but you are >> looking for `:username` they keyword as a key >> >> On Fri, Oct 19, 2012 at 8:47 AM, larry google groups >> <lawrenc...@gmail.com> wrote: >> > >> > >> > Also: >> > >> > >> > >> >> I suggesting adding printlns or logging or a debugger and checking the >> >> value of this-users-params, it is almost certainly not what you expect >> >> it to be. >> > >> > I showed the output previously, but I will do it again. >> > >> > If I add a println like this: >> > >> > >> > (defn add-to-logged-in-registry [this-users-params] >> > (let [right-now (. (Date.) getTime) >> > new-user-entry (conj this-users-params { "updated" right-now >> })] >> > (println apply str new-user-entry) >> > >> > (if (:username new-user-entry) >> > (swap! registry assoc (:username new-user-entry) >> new-user-entry)))) >> > >> > This code works perfectly at the REPL so to show a problem I have to >> upload >> > this to the live server. So I compile this and upload it to the server >> and >> > start it up and immediately the Javascript in the browsers of dozens of >> > users starts to bombard the app: >> > >> > java -jar who-is-logged-in-1.0.1-**standalone.jar 40000 >> > App 'Who is logged in?' is starting >> > port: 40000 >> > 2012-10-19 11:37:02.731:INFO:oejs.Server:**jetty-7.x.y-SNAPSHOT >> > 2012-10-19 11:37:02.846:INFO:oejs.**AbstractConnector:Started >> > SelectChannelConnector@0.0.0.**0:40000<http://SelectChannelConnector@0.0.0.0:40000> >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661023079, username rumbella, >> > first_name , last_name , user_image , site www.wpquestions.com} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661023140, username >> karlorihoo, >> > first_name Karlo, last_name Rihoo, user_image , site >> www.wpquestions.com} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661023698} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661024149, username Rainner, >> > first_name Rainner, last_name Lins, user_image Rainner_phptZ2nEJ.jpg, >> site >> > www.javascriptquestions.com} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661024159} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661024269} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661024646} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661024833, username dbranes, >> > first_name Dbranes, last_name , user_image dbranes_phpPJVl3f.jpg, site >> > www.wpquestions.com} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661025140, username >> Christianto, >> > first_name Christianto, last_name , user_image >> Christianto_phpqESzHW.jpg, >> > site www.wpquestions.com} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661025337, username jsoni, >> > first_name Jatin, last_name Soni, user_image jsoni_phpYlWQTr.jpg, site >> > www.wpquestions.com} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661025651} >> > >> > #<core$apply clojure.core$apply@d1fba79> #<core$str >> > clojure.core$str@7dfde44e> {updated 1350661025996} >> > >> > So, why does this not work? And what is the right way to be sure that >> this: >> > >> > {updated 1350661025996} >> > >> > Is never added to the registry (since there is no username). >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > On Friday, October 19, 2012 3:53:26 AM UTC-4, red...@gmail.com wrote: >> >> >> >> conj can surely produce maps, and does so happily in the following >> cases: >> >> >> >> (conj {} [:foo :bar]) >> >> (conj {} {:foo :bar}) >> >> >> >> I suggesting adding printlns or logging or a debugger and checking the >> >> value of this-users-params, it is almost certainly not what you expect >> >> it to be. >> >> >> >> as a side note creating a date object just to call getTime is kind of >> >> gross, try (System/currentTimeMillis) >> >> >> >> On Fri, Oct 19, 2012 at 12:42 AM, Sean Corfield <seanco...@gmail.com> >> >> wrote: >> >> > On Fri, Oct 19, 2012 at 12:10 AM, larry google groups >> >> > <lawrenc...@gmail.com> wrote: >> >> >> >> >> >> (defn add-to-logged-in-registry [this-users-params] >> >> >> (let [right-now (. (Date.) getTime) >> >> >> new-user-entry (conj this-users-params { "updated" >> right-now >> >> >> })] >> >> >> (if (:username new-user-entry) >> >> >> (swap! registry assoc (:username new-user-entry) >> >> >> new-user-entry)))) >> >> >> >> >> >> The if statement seems to never be true. >> >> > >> >> > >> >> > conj produces a sequence, not a map, so the lookup of :username >> fails. >> >> > Try >> >> > new-user-entry (assoc this-users-params "updated" right-now) >> >> > -- >> >> > Sean A Corfield -- (904) 302-SEAN >> >> > An Architect's View -- http://corfield.org/ >> >> > World Singles, LLC. -- http://worldsingles.com/ >> >> > >> >> > "Perfection is the enemy of the good." >> >> > -- Gustave Flaubert, French realist novelist (1821-1880) >> >> > >> >> > -- >> >> > You received this message because you are subscribed to the Google >> >> > Groups "Clojure" group. >> >> > To post to this group, send email to clo...@googlegroups.com >> >> > Note that posts from new members are moderated - please be patient >> with >> >> > your >> >> > first post. >> >> > To unsubscribe from this group, send email to >> >> > clojure+u...@googlegroups.com >> >> > For more options, visit this group at >> >> > http://groups.google.com/**group/clojure?hl=en<http://groups.google.com/group/clojure?hl=en> >> >> >> >> >> >> >> >> -- >> >> And what is good, Phaedrus, >> >> And what is not good— >> >> Need we ask anyone to tell us these things? >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups "Clojure" group. >> > To post to this group, send email to clo...@googlegroups.com >> > Note that posts from new members are moderated - please be patient with >> your >> > first post. >> > To unsubscribe from this group, send email to >> > clojure+u...@**googlegroups.com >> > For more options, visit this group at >> > http://groups.google.com/**group/clojure?hl=en<http://groups.google.com/group/clojure?hl=en> >> >> >> >> -- >> And what is good, Phaedrus, >> And what is not good— >> Need we ask anyone to tell us these things? >> > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > -- I may be wrong or incomplete. Please express any corrections / additions, they are encouraged and appreciated. At least one entity is bound to be transformed if you do ;) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en