ruby - regex to detect id parts of a rails url -



ruby - regex to detect id parts of a rails url -

let's have rails url printed out this.

"/admin/corporate_pages/:corporate_page_id/carousel_items/:id/move_down"

how, using regex, 1 substitute parts of url id required, 1. desired output this,

"/admin/corporate_pages/1/carousel_items/1/move_down"

the id appear @ point, musn't count forwards slashes illustration know when substitute. must observe when colon followed string.

i playing around in http://rubular.com/ this. newbie regex, , having read

the road hell paved regular expressions - ilian iliev

i origin sense nauseous.

thanks

regex match 2 :{id_name} using /(:.+?)\//

url = "/admin/corporate_pages/:corporate_page_id/carousel_items/:id/move_down" url.scan(/(:.+?)\//).flatten =>[":corporate_page_id", ":id"]

explain:

( -- grouping start : -- start : (:) .+? -- char(.) repeat @ to the lowest degree 1 time(+) ungreedy match(?) ) -- grouping end \/ -- stop / (\/)

to replace 2 :{id_name} '1', need alter regexp /:[^\/]+/

url.gsub(/:[^\/]+/, '1') =>"/admin/corporate_pages/1/carousel_items/1/move_down"

regular look test

ruby-on-rails ruby regex

Comments

Post a Comment

Popular posts from this blog

java Multi query from Mysql using netbeans -

java Multi query from Mysql using netbeans - i have java code retrieve info mysql appropriate code in netbeans.the code below. want multi query such illustration finding total number of products , on.could help me please. in advance import java.sql.*; public class javamysqlselectexample { public static void main(string[] args) { seek { string mydriver = "com.mysql.jdbc.driver"; string myurl = "jdbc:mysql://localhost/sample"; class.forname(mydriver); connection conn = drivermanager.getconnection(myurl, "root", "mypasscode1"); string query = "select * products"; statement st = conn.createstatement(); resultset rs = st.executequery(query); while (rs.next()==true) { int code = rs.getint("code"); string productname = rs.getstring("product_name"); string producttype = rs.getstring("product_type"); system.out.format(" %d, %s, %s\n", code, pr
Read more

c# - DotNetZip fails with "stream does not support seek operations" -

c# - DotNetZip fails with "stream does not support seek operations" - i using dotnetzip in c# unzip stream follows: public static void unzipfromstream(stream stream, string outdir) { //omit seek grab block using (zipfile zip = zipfile.read(stream)){ foreach (zipentry e in zip){ e.extract(outdir, extractexistingfileaction.overwritesilently); } } } stream obtained using webclient client = new webclient(); stream fs = client.openread(url); however, got next exception exception during extracting zip stream system.notsupportedexception: stream not back upwards seek operations. @ system.net.connectstream.get_position() @ ionic.zip.zipfile.read(stream zipstream, textwriter statusmessagewriter, encoding encoding, eventhandler`1 readprogress) on server side(asp.net mvc 4), returning filepathresult or filestreamresult both caused exception. should obtain stream differently on client side? or how create server homec
Read more

c++ - StartServiceCtrlDispatcher don't can access 1063 error -

c++ - StartServiceCtrlDispatcher don't can access 1063 error - i write on c++ service , have error, , don't can fixed it. my service main function int main (int argc, tchar *argv[]) {dword f; for(int i=0;i<113;i++) f = getlasterror(); servicepath = lptstr(argv[0]); outputdebugstring(_t("my sample service: main: entry")); //installservice(); service_table_entry servicetable[] = { {service_name, (lpservice_main_function) servicemain}, {null, null} }; // startservice(); if(!startservicectrldispatcher(servicetable)) { f = getlasterror(); //addlogmessage("error: startservicectrldispatcher"); } else if( memcmp(argv[argc-1],"install",7)) { installservice(); } else if( memcmp(argv[argc-1],"remove",6)) { removeservice(); } else if( memcmp(argv[argc-1],"start",5)) { startservice(); } else if( memcmp(argv[argc-1],"stop",4))
Read more