similar to: More idiomatic way of doing this

Is there a more elegant way of writing this? def verify_user @user = User.find_by_username params[:username] if @user.nil? message = xml.error do |xm| xm.message "User does not exists: #{params[:username]}" end render :xml => message return false else true end end Thanks, Joel --

What is the hex number after the method, e.g. +0x32f below? It matches arg0 and I suspect it''s the c++ "this" pointer, aka hidden first argument. I would like to confirm, though. Thanks, Joel --- XUL`PresShell::ProcessReflowCommands(int)+0x32f XUL`PresShell::FlushPendingNotifications(mozFlushType) +0x19e

Folks, I checked my test_helper.rb and it has self.use_transactional_fixtures = true My code was generated with 1.1.2 and I''m using 1.1.3 right now after but the error persists. I googled for this issue and it appears that a require is missing or something like that. I can''t figure it out, please help! /opt/local/bin/ruby -Ilib:test

Folks, I'm new to R and would like to use it to analyze web server performance data. I collect the data in this CSV format: 1304083104.41,Y,668.856249809 1304083104.41,Y,348.143193007 First column is a <seconds.microseconds> timestamp, rows with N instead of Y need to be skipped and the last column has the same format as the first column, except it's request duration (latency).

Does R have support for microseconds in timestamps, e.g. when reading this in "Time","Include","Kind","Duration" 2011-04-01 14:20:36.368324,Y,U,1.03238296509 2011-04-01 14:20:35.342732,Y,C,0.0252721309662 2011-04-01 14:20:34.337209,Y,R,0.00522899627686 Thanks, Joel -------------------------------------------------------------------------- - for hire: mac

I added a couple of static probes to Firefox to measure actual work done. I could have used a pid$target probe with a function name but work is done within an if statement, which is where I placed the static probes. I''m wondering about my use, though. Is the following significantly more efficient than pid$target::FunName:entry and return? I heard somewhere that $target does not

Suppose I have a USDT probe in Firefox and that I''m trying to catch the startup with a probe like this: proc:::exec-success /execname == "firefox-bin"/ { start = timestamp; } and stop tracing when Firefox hits this USDT probe: mozilla:::main-entry { exit(0); } How do I put the running firefox-bin into "trace mode" so that my USDT probe fires? Thanks, Joel

Folks, My understanding of how filters work is that I should return true if everything is ok and false if not. How does the filter below work then (from the Rails Recipies book)? It would return nil if there''s a user in the session. Does nil count as true? before_filter :check_authentication def check_authentication unless session[:user] session[:intended_action] =

I have a script where I can freely reference struct nameidata*, struct vnode*, etc. on Snow Leopard. How does DTrace know about these data types? I understand things like #pragma D depends_on library darwin.d where darwin.d has typedefs. I can''t find definitions of nameidata and vnode in any D scripts, though. How does it work? Thanks, Joel --- firefox for android!

Folks, I have the standard setup with auto-generated unit tests and fixtures. I edited the fixtures and the tests but would now like to test associations from irb. How do I do this? I''m not sure how to load my fixtures into irb, for example. Once they are loaded I would create objects, save them to the db and pull things out. Thanks, Joel -- http://wagerlabs.com/

I''m trying to time a function within Firefoxwith a pid$target probe [2]. e.g dtrace -Zqw -x dynvarsize=64m -x evaltime=preinit -p 13954 -s menu- construct.d -s sigcont.d elapsed: 12.7942481ms cpu : 7.7911194ms count : 40 times I''m also measuring Firefox startup time by running it arguments like this: ... file:///Users/joelr/work/mozilla/startup/startup.html#`python

Does dtrace have a problem catching the return from memset on Mac OSX? The script below catches the entry just fine but the return clause is never entered. Thanks, Joel --- pid$target::memset:entry /arg1 == 0/ { self->size = arg2; self->ts = timestamp; self->vts = vtimestamp; } pid$target::memset:return /self->size/ { @ts = sum(timestamp - self->ts); @vts =

Hi, This question isn''t Rails-specific, but since Basecamp (& the family of premium 37signals apps) have the best implementation of credit-card processing I''ve seen, I''m hoping maybe DHH could lend an answer. Of course, anyone is welcome to chime in! # Some background Our nonprofit is building a Rails-driven store and donation center and our developer is

I am trying to understand why model validation error reporting in Rails is so complicated compared to non ajax model validation. In my normal form I use <%= error_messages_for ''user'' %> in my view and I get a nice error message displayed when the user inputs invalid information into the form. When I convert that form to use Ajax using form_remote_tag the

Hi, When I go to my homepage all is well, however when the Pingdom bot arrives (every few seconds!), it throws the following error: ActionController::RenderError occurred in home#index: You called render with invalid options : available [RAILS_ROOT]/vendor/rails/actionpack/lib/action_controller/base.rb:808:in `render_with_no_layout'' My index action doesn''t call render, it

I''m just wondering what happened to Armageddon and whether people had any more information/news about it. I''ve thought about comet but I think that a flash socket would be easier to implement. Does Armageddon have the same drawbacks as other flash sockets, namely not working over port 80 (so the companies firewall blocks it)? -- Posted via http://www.ruby-forum.com/.

CentOS 6.5, cyrus-imapd 2.3.16-6 So, I gather you're supposed to create mailboxes called user.<username> But I wind up with user^<username>, and mailbox can't be found. [joliver at localhost ~]$ cyradm -u testuser1 localhost Password: localhost> cm user.testuser2 localhost> cm user.testuser3 localhost> cm user.textuser4 [joliver at localhost ~]$ sudo ls -l

Hello, I''m setting up an authentication module that will be called from application.rb. I want to save a rrequest.request_uri into a session to be used as a place holder that will take users back to the page they were on before they logged in. I''m trying to call the store_location method for all methods EXCEPT login by putting login in an except before filter. For some

I have two functional tests for my user controller: def test_bad_registration post :register, :email => "tester1@foo.com" assert_response :success assert_not_nil @response.body =~ /^\<error/ assert_nil assigns[''user''] end def test_good_registration @response.body = nil post :register, :username => "tester",

Folks, I''m using the session db table to store additional data. When a user logins I would like to store their user id in the session record and save that. I''m thinking of x = Session.find(session.id) and then x.save. Is this the right way to do it? Thanks, Joel -- http://wagerlabs.com/