On Fri, Oct 19, 2012 at 5:47 PM, larry google groups < lawrencecloj...@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 > > #<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} > I'm a little confused here, is first_name nil or missing the value ? if it were nil then nil would show > > #<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 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