Search Results

Search found 13886 results on 556 pages for 'ruby on rails deployment'.

Page 231/556 | < Previous Page | 227 228 229 230 231 232 233 234 235 236 237 238  | Next Page >

• Ruby - Platform independent way to determine IPs of all network interfaces?

  - by Tindron

  Is there an easy way in Ruby for me to get a list of the IP addresses for all network interfaces? It needs to work in Linux/Win/OSX and I'd prefer to not have to parse ifconfig/ipconfig unless I absolutely have to.

  Read the article

• In Ruby on Rails, why will story.votes return an empty Array object, but story.votes.create will act

  - by Jian Lin

  In Ruby on Rails, say a Story object can "has_many" Vote objects (a story is voted "hot" by many users). So when we do a s = Story.find(:first) s is a Story object, and say s.votes returns [] and s.votes.class returns Array So clearly, s.votes is an empty Array object. At this time, when s.votes.create is called, it actually invokes a method of the Vote class? How come an Array class object can invoke a Vote class method?

  Read the article

• What is the state of Ruby as a compiled language?

  - by JustSmith

  Ruby has been around for a while now so I was wondering if there was any work being done on a compiler for it? I know that compiler design is hindered by things like Eval() so I would not expect implementations to be 100 percent accurate? My own searches have turned up sparse results.

  Read the article

• Can I make ruby send network traffic over a specific iface?

  - by rjorgenson

  I am writing a script that grabs the external IP address along with some other information about each iface. I can't figure out how to make ruby send traffic over a specific iface(eth0 and wlan0 for example). I am currently using the open-uri library to open http://whatismyip.org and read it into a variable. def get_external_ip begin open("http://whatismyip.org") { |f| return f.read } rescue return "none" end end Is there any way to specify this at runtime of the script or from within the script itself(ideally)?

  Read the article

• Is there a static analysis tool for Python, Ruby, Sql, Cobol, Perl, and PL/SQL?

  - by Raj

  I am looking for a static analysis tool for Python, Ruby, Sql, Cobol, Perl, PL/SQL, SQL similar to find bugs and check style. I am looking for calculating the line count, identify bugs during the development, and enforcing coding standard.

  Read the article

• With Ruby, where to use NOT, AND, OR, XOR operations for Fixnum or Bignum?

  - by Jason

  Hi, Just wondering if anyone has any realworld examples or know when you might use the NOT, AND, OR, XOR, <<, operators in Ruby. I've been programming for 4 years and never come across the need to use any of these, wondering how common actual usage is & if its something I should fully understand. Thanks, -J

  Read the article

• Best practice to handle non-english characters in Ruby?

  - by ragnarius

  My program file is encoded in UTF-8 so "abc".length == 3 but "åäö".length == 6. I realize that å, ä, ö, etc. are stored as two bytes in UTF-8, and that a Ruby String is a sequence of bytes (not characters), but it is annoying! Is there a best practice to work around this problem?

  Read the article

• How to monitor traffic of ruby on rails website?

  - by Tony

  I have a ruby on rails application and it would be nice to see how many hits I get per hour. Is there some simple free software to do this or do I have to develop a custom solution? Thanks!

  Read the article

• Best practice to handle non-english characters is ruby?

  - by ragnarius

  Hi! My program file is encoded in utf-8 so "abc".length==3 but "åäö".length==6. I realize that å,ä,ö, are stored as two bytes in utf-8, and that a ruby String is a sequence of bytes (not characters), but it is annoying! Is there a best practice to work around this problem?

  Read the article

• Is Prince the best way to PDF in Ruby on Rails?

  - by Angela

  After several Google searches, it appears that the way to create PDF's in Rails from HTML and CSS (versus a new markup language) is to use Prince. With licensing at $3800 for my non-big-commercial app, I'm wondering if this is, in fact, consensus or people have an alternative they can share the what's and how's.

  Read the article

• Front-end design first, or back-end development first? For Ruby on Rails site

  - by Victor

  I am doing everything on my own: front-end and back-end. I am proficient with HTML and CSS, but a noob in Ruby on Rails. Now that I want to develop the site, I wonder if I should start from front-end first, or back-end. Cos what I am doing for front-end now are all static. I am afraid that I have to change a lot of my front-end coding when I do my back-end.

  Read the article

• How do you kill a PTY.spawn call in Ruby?

  - by viatropos

  If I run a command like this, using ruby's pty class, how do I kill it if I find a certain input string? cmd = "appcfg.py update cdn" PTY.spawn("#{cmd} 2>&1") do | input, output, pid | begin input.expect("Email:") do output.write("#{credentials[:username]}\n") end input.expect("Password:") do output.write("#{credentials[:password]}\n") end if input.gets == "SOMETHING" EXIT! end rescue Exception => e puts "GAE Error..." end end What is the right way to do that?

  Read the article

• How to build a Weighted Graph with Ruby's RGL or GRATR to perform Dijkstra's algorithm?

  - by Andres

  I would like to see an example of a Dijkastra search algorithm for a graph built using Ruby's RGL (http://rgl.rubyforge.org/) or GRATR (http://rubyforge.org/projects/gratr/). I know GRATR has Dijkastra support but I'm not really sure how to go about using it, any help would be appreciated.

  Read the article

• possible to output current CPU and MEM usage via ruby script ? i am trying to find memory leaks

  - by puqt

  is it possible to say output the current consumption of CPU and memory in ruby script ?rub i am trying to find memory leaks in my jruby sript. CPU usage keeps going up to 100% until it crashes.

  Read the article

• What's the difference between the ruby irb prompt modes?

  - by Steven

  I can change the irb prompt mode with irb --prompt prompt-mode I can see what null and simple does, but I can't tell the difference between null and xmp and the difference between default/classic/inf-ruby. Can someone explain to me what these other modes do? It seems pointless to have multiple modes doing the same thing.

  Read the article

• Is Prince the best way to create PDFs in Ruby on Rails?

  - by Angela

  After several Google searches, it appears that the way to create PDFs in Rails from HTML and CSS (versus a new markup language) is to use Prince. With licensing at $3800 for my non-big-commercial app, I'm wondering if this is, in fact, consensus or people have an alternative they can share the whats and hows.

  Read the article

• Can I have a block in begin/while statement in Ruby?

  - by jbjuly

  I'm trying out to have a block in a while and begin statements in Ruby, but I get a syntax error. Any other way to implement it? Here's what I want to accomplish (1..limit).each { |i| while (true) do |n| x = n * (i%n) puts n if n%i != 0 break if x.even? && !x.zero? n += 1 end }

  Read the article

• How do I completely uninstall rails, ruby and rubygems?

  - by JZ

  My system is F'd. How do I completely uninstall rails, ruby and rubygems? any suggestions on where to go to reinstall from scratch? Best practices? I'd like to get back to 3.0 beta Thanks!

  Read the article

• Specify private SSH-key to use when executing shell command with or without Ruby?

  - by Christoffer

  A rather unusual situation perhaps, but I want to specify a private SSH-key to use when executing a shell (git) command from the local computer. Basically like this: git clone [email protected]:TheUser/TheProject.git -key "/home/christoffer/ssh_keys/theuser" Or even better (in Ruby): with_key("/home/christoffer/ssh_keys/theuser") do sh("git clone [email protected]:TheUser/TheProject.git") end I have seen examples of connecting to a remote server with Net::SSH that uses a specified private key, but this is a local command. Is it possible? Thanks

  Read the article

• What grammar based parser-generator tools exist for ruby?

  - by cartoonfox

  What open source (preferably gem-based) parser-generator options do I have in Ruby? I've used (flex&bison)|(lex&yacc) from C in the past, and I'm comfortable with BNF-style specifications. I've heard of treetop, but it looks a bit alien and verbose compared to yacc... Purpose: I want to convert my text markup language to a BNF and generate the parsing code. I think it's a better strategy than my first-order solution: http://github.com/dafydd/semantictext/blob/master/lib/semantictext/rich_text_parser.rb

  Read the article

• What is the meaning of "-" in blocks of server-side code in ruby on rails?

  - by mmacaulay

  I often see things like this in rails views: <% form_tag some_path do -%> <% end -%> Why is there a "-" at the end of each of those lines? My code works fine without it, but is it a best practice or some kind of security measure?

  Read the article

• How to assert certain method is called with Ruby minitest framework?

  - by steven.yang

  I want to test whether a function invokes other functions properly with minitest Ruby, but I cannot find a proper assert to test from the doc. The source code class SomeClass def invoke_function(name) name == "right" ? right () : wrong () end def right #... end def wrong #... end end The test code: describe SomeClass do it "should invoke right function" do # assert right() is called end it "should invoke other function" do # assert wrong() is called end end

  Read the article

• Convert Ruby array of tuples into a hash given an array of keys?

  - by Kit Ho

  I have an simple array array = ["apple", "orange", "lemon"] array2 = [["apple", "good taste", "red"], ["orange", "bad taste", "orange"], ["lemon" , "no taste", "yellow"]] how can i convert in to this hash whenever element in array match the first element of each element in array2? hash = {"apple" => ["apple" ,"good taste", "red"], "orange" => ["orange", "bad taste", "orange"], "lemon" => ["lemon" , "no taste", "yellow"] } I am quite new to ruby, and spend a lot to do this manipulation, but no luck, any help ?

  Read the article

• Closest Ruby representation of a 'public static final' class variable in Java?

  - by Hosh

  Given the Java code below, what's the closest you could represent this private static final variable in a Ruby class? public class DeviceController { ... private static final Device myDevice = Device.getDevice("mydevice"); ... public static void main(String args[]) { ... } }

  Read the article

• Can Ruby access output from shell commands as it appears?

  - by Ciryon

  My Ruby script is running a shell command and parsing the output from it. However, it seems the command is first executed and output saved in an array. I would like to be able to access the output lines in real time just as they are printed. I've played around with threads, but haven't got it to work. Any suggestions?

  Read the article

< Previous Page | 227 228 229 230 231 232 233 234 235 236 237 238  | Next Page >