The extra argument is the [Req] as defined in the the module definition. Here are some slides I made up for a talk a few years back that show how parameter modules *really* work:
http://slides.sigma-star.com/view/Erlang%20Gotchas#/15 -- Jesse Gumm Owner, Sigma Star Systems 414.940.4866 || sigma-star.com || @jessegumm On Dec 8, 2015 10:13 AM, "can2nac" <[email protected]> wrote: > Hi, > > let's say i have > -module(sns_main_controller, [Req]) which processes web requests. It also > has some additional functions which i would like to call. > > > i can call sns_main_controller:module_info() and it returns pretty much > everything, but all non /0 functions have +1 extra argument. For example, > {checkCashe,4} instead of {checkCashe,3} as in description. > > I tried to call function with no luck: > (sns@can2nac-laptop)12> sns_main_controller:chec > chechCache/4 checkCashe/4 > (sns@can2nac-laptop)12> sns_main_controller:checkCashe(a,b,c,d). > ** exception error: no function clause matching > sns_main_controller:checkCashe(a,b,c,d) > (/home/can2nac/projects/sns/src/controller/sns_main_controller.erl, line 6) > (sns@can2nac-laptop)13> sns_main_controller:checkCashe(b,c,d). > ** exception error: undefined function sns_main_controller:checkCashe/3 > > How to call function from controller and what is this extra argument? > > best, > > -- > You received this message because you are subscribed to the Google Groups > "ChicagoBoss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > Visit this group at http://groups.google.com/group/chicagoboss. > To view this discussion on the web visit > https://groups.google.com/d/msgid/chicagoboss/5a426f69-0f2c-4741-8eef-5e3f6b01bb79%40googlegroups.com > <https://groups.google.com/d/msgid/chicagoboss/5a426f69-0f2c-4741-8eef-5e3f6b01bb79%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "ChicagoBoss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at http://groups.google.com/group/chicagoboss. To view this discussion on the web visit https://groups.google.com/d/msgid/chicagoboss/CAPTXyXfguyL-9Vybjw-9C6kght%2BKjpZJDk6O%2BPw_BSQhfcYCOg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
