Search Results

Search found 12783 results on 512 pages for 'ruby beginner'.

Page 409/512 | < Previous Page | 405 406 407 408 409 410 411 412 413 414 415 416  | Next Page >

  • Beginner C: error: control reaches end of non-void function?

    - by Ting
    I'm trying to make a greedy algorithm and I get this error: greedy2.c:27:1: error: control reaches end of non-void function [-Werror,-Wreturn-type] } ^ 1 error generated. with this code: int man(int argc, char* argv[]) { float amount; do { printf("Input dollar amount owed:\n"); amount = GetFloat(); } while (amount <= 0); int coins = 0; while (amount >= 0.25); { amount = amount - 0.25; coins++; } printf("Number of coins to use: %d\n", coins); } What is wrong with my curly braces, and how do I fix it?

    Read the article

  • A beginner's question...How do I use $_POST instead of $_GET? (PHP)

    - by ggfan
    Okay, for all my coding so far I been using GETs and only $_POST on the same script. Ex: profile.php would show all the posts an user made and under each of their post, they can edit their post. The way I been using it is through $_GETs. So.. //this is the link users click to edit their post echo '<td><a href="editad.php?posting_id='.$row3['posting_id'].' ">Edit</a>'; //on the editad.php $posting_id=$_GET['posting_id']; if (isset($posting_id)){ //show all the forms, sqls to do the editing } else{ //if the $_GET hasn't been set echo "You have not specified which ad to edit. Please go back"; } How do I do this via POST? Thanks :)

    Read the article

  • Beginner servlet question: accessing files in a .war, which path?

    - by Navigateur
    When a third-party library I'm using tries to access a file, I'm getting "Error opening ... file ... (No such file or directory)" even though I KNOW the file is in the WAR. I've tried both packaged (.war) and "exploded" (directory) deployment, and the file is definitely there. I've tried setting full permissions on it too. It's on Unix (Ubuntu). File is war/dict/index.sense and the error is "dict/index.sense (No such file or directory)". It works fine on my Windows computer when running in hosted mode as a GWT app from Eclipse, just not when I transfer it to the Unix machine for deployment. My question is: has anybody experienced this before and/or are there differences in relative path that I should consider i.e. what's the root path for relative file access in a war?

    Read the article

  • Beginner Question ; About Prime Generation in "C" - What is wrong with my code ? -

    - by alorsoncode
    I'm a third year irregular CS student and ,i just realized that i have to start coding. I passed my coding classes with lower bound grades so that i haven't a good background in coding&programming. I'm trying to write a code that generates prime numbers between given upper and lower bounds. Not knowing C well, enforce me to write a rough code then go over it to solve. I can easily set up the logic for intended function but i probably create a wrong algorithm through several different ways. Here I share my last code, i intend to calculate that when a number gives remainder Zero , it should be it self and 1 , so that count==2; What is wrong with my implementation and with my solution generating style? I hope you will warm me up to programming world, i couldn't find enough motivation and courage to get deep into programming. Thanks in Advance :) Stdio and Math.h is Included int primegen(int down,int up) { int divisor,candidate,count=0,k; for(candidate=down;candidate<=up;candidate++) { for(divisor=1;divisor<=candidate;divisor++) { k=(candidate%divisor); } if (k==0) count++; if(count==2) { printf("%d\n", candidate); count=0; } else { continue; } } } int main() { primegen(3,15); return 0; }

    Read the article

  • How should I solve this MySql problem (PHP) ? (Beginner)

    - by Camran
    I have several tables in a MySql database. I have a classifieds website, and at the bottom I display the users last visited classifieds. I do this by storing the ID:s of the ads to an array in the cookie. Now, my db is made up like this kindof: Main Table: // Stores global information, ie these fields have to be filled out in every record, never be blank ID Price category Seller Item Table: // Stores descriptive info about whats for sale ID AD_ID (FK) //This is the same as ID in the MAIN TABLE Color Size Mileage etc My problem is that I need to know what category the ad is in, in order to query mysql for the right information I think. So I need two variables, but the cookie only has one (ID) stored. Offcourse I could make two queries, first one just matching the ID to the main_table and fetch the category from the Main_table. Then make the second query and fetch all other info from the right table. Here is an example if the category was Vehicles: SELECT * FROM main_table, vehicles_table, WHERE main_table.id=$id_from_cookie AND main_table.ad_id=vehicles_table.ad_id As you can see above, I need the category to write in what table to check, right? But I think there must be a smarter way, like fetching them in one single query using only one variable (id from cookie)? How should I do this? Understand? Let me know if you need more input... Thanks

    Read the article

  • Watir with IronRuby!

    - by azamsharp
    Has anyone used Watir with IronRuby successfully? I am getting an error that the required file 'Watir' was not found. What path do I need to set to get this file to work in IronRuby? For some reason my igem command is not working: C:\DevTools\IronRuby\ironruby\Merlin\Main\Languages\Ruby\Scripts\binigem instal l watir '"C:\DevTools\IronRuby\ironruby\Merlin\Main\Languages\Ruby\Scripts\bin\ir.exe"' is not recognized as an internal or external command, operable program or batch file. I am using 0.9 version of Ironruby. I remember that in 0.9 you have to indicate the ir tool: I used the following and got the error again! C:\DevTools\IronRuby\ironruby\Merlin\Main\Languages\Ruby\Scripts\binir igem ins tall watir ERROR: While executing gem ... (RangeError) bignum too big to convert into Fixnum The current version of RubyGems is 1.3.5: C:\DevTools\IronRuby\ironruby\Merlin\Main\Languages\Ruby\Scripts\binir igem -v 1.3.5 I even tried using the full path: require File.dirname(__FILE__) + "C:/ruby/lib/ruby/gems/1.8/gems/commonwatir-1.6.2/lib/watir.rb"

    Read the article

  • How to write "Hello World" Program for MediaTek SDK?

    - by Mediatek Beginner
    Hi Friends, I know these days number of mobile handsets are increasing and Vendors are trying to produce low cost handsets and some how I got to know that MediaTek SDK is the right one to write program for these kind of handsets. Is there any one who knows which IDE should I use to write programs for these kind of handsets? Is there any source code and sample available? I know that Fly, Karbonn, Lava Mobiles are Mediatek sdk based. Please Help Me. Regards, Mediatek Beginner

    Read the article

  • adding mongo to path

    - by Mike
    Bit of a noob question. I have downloaded MongoDb and installed it here /Users/mike/downloads/mongodb In order to start it, I then have to 'cd' into the 'bin' /Users/mike/downloads/mongodb/bin and run ./mongod (to start the database) and ./mongo (to start the mongo shell) The problem is that I can only work with python and ruby scripts using the mongo shell if I have those scripts stored in the same bin directory, and I don't think that's the ideal set up. Will exporting the path allow me to access mongo from outside the bin? For example, I would prefer to have my ruby scripts in /sites/ruby and be able to access mongo by starting ruby in /sites/ruby. If exporting to path is the solution, how do I do that. I'm using a mac

    Read the article

  • ifconfig : Command 'ifconfig' is available in '/sbin/ifconfig'

    - by Sahil Grover
    My question is related to another open question. My echo $PATH gives me an output which is like /home/sahil/.rvm/gems/ruby-1.9.3-p125/bin:/home/sahil/.rvm/gems/ruby-1.9.3-p125@global/bin:/home/sahil/.rvm/rubies/ruby-1.9.3-p125/bin:/home/sahil/.rvm/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:/home/sahil/.rvm/bin{}:/home/android-sdks/{}:/home/android-sdks/platform-tools/{}:/home/android-sdks/tools/{}:/home/sahil/android-sdks/tools{}:/home/sahil/android-sdks/tools:/home/sahil/android-sdks/platform-tools/ But running ifconfig gives me an output like Command 'ifconfig' is available in '/sbin/ifconfig' The command could not be located because '/sbin' is not included in the PATH environment variable. This is most likely caused by the lack of administrative privileges associated with your user account. ifconfig: command not found after running command like given in other question export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" it runs ifconfig but blocks other commands of ruby rails or rvm. Seeking help how to resolve this. Also why this happens?

    Read the article

  • Community Branching

    - by Dane Morgridge
    As some may have noticed, I have taken a liking to Ruby (and Rails in particular) quite a bit recently. This last weekend I spoke at the NYC Code Camp on a comparison of ASP.NET and Rails as well as an intro to Entity Framework talk.  I am speaking at RubyNation in April and have submitted to other ruby conferences around the area and I am also doing a Rails and MongoDB talk at the Philly Code Camp in April. Before you start to think this is my "I'm leaving .NET post", which it isn't so I need to clarify. I am not, nor do I intend to any time in the near future plan on abandoning .NET.  I am simply branching out into another community based on a development technology that I very much enjoy.  If you look at my twitter bio, you will see that I am into Entity Framework, Ruby on Rails, C++ and ASP.NET MVC, and not necessarily in that order.  I know you're probably thinking to your self that I am crazy, which is probably true on several levels (especially the C++ part). I was actually crazy enough at the NYC Code Camp to show up wearing a Linux t-shirt, presenting with my MacBook Pro on Entity Framework, ASP.NET MVC and Rails. (I did get pelted in the head with candy by Rachel Appel for it though) At all of the code camps I am submitting to this year, i will be submitting sessions on likely all four topics, and some sessions will be a combination of 2 or more.  For example, my "ASP.NET MVC: A Gateway To Rails?" talk touches ASP.NET MVC, Entity Framework Code First and Rails. Simply put (and I talk about this in my MVC & Rails talk) is that learning and using Rails has made me a better ASP.NET MVC developer. Just one example of this is helper methods.  When I started working with ASP.NET MVC, I didn't really want to use helpers and preferred to just use standard html tags, especially where links were concerned.  It was just me being stubborn and not really seeing all of the benefit of the helpers.  To my defense, coming from WebForms, I wanted to be as bare metal as possible and it seemed at first like a lot of the helpers were an unnecessary abstraction. I took my first look at Rails back in v1 and didn't spend very much time with it so I dismissed it and went on my merry ASP.NET WebForms way.  Then I picked up ASP.NET MVC and grasped the MVC pattern itself much better. After this, I took another look at Rails and everything made sense.  I decided then to learn Rails. (I think it is important for developers to learn new languages and platforms regularly so it was a natural progression for me) I wanted to learn it the right way, so when I dug into code, everyone used helpers everywhere for pretty much everything possible. I took some time to dig in and found out how helpful they were and subsequently realized how awesome they were in ASP.NET MVC also and started using them. In short, I love Rails (and Ruby in general).  I also love ASP.NET MVC and Entity Framework and yes I still love C++.  I have varying degrees of love for them individually at any given moment and it is likely to shift based on the current project I am working on.  I know you're thinking it so before you ask the question. "Which do I use when?", I'm going to give the standard developer answer of: It depends.  There are a lot of factors that I am not going to even go into that would go into a decision.  The most basic question I would ask though is,  does this project depend on .NET?  If it does, then I'd say that ASP.NET MVC is probably going to be the more logical choice and I am going to leave it at that.  I am working on projects right now in both technologies and I don't see that changing anytime soon (one project even uses both). With all that being said, you'll find me at code camps, conferences and user groups presenting on .NET, Ruby or both, writing about .NET and Ruby and I will likely be blogging on both in the future.  I know of others that have successfully branched out to other communities and with any luck I'll be successful at it too. On a (sorta) side note, I read a post by Justin Etheredge the other day that pretty much sums up my feelings about Ruby as a language.  I highly recommend checking it out: What Is So Great About Ruby?

    Read the article

  • Can I list file names (or their parent directories) that were recently deleted using rm in OS X?

    - by Andrew Grimm
    Is it possible to find out which files and directories have recently been deleted by rm in OS X? Or failing that, is it possible to find which parent directories have had files or directories within it deleted? The OS version is Snow Leopard. Background: Last night, rvm (ruby version manager) did rm -rf of the ~/ruby directory from the home directory. (This bug has since been fixed) Ideally, I'd like to know what files within the ~/ruby directory were deleted, but failing that, I'd like to know if rvm deleted anything outside of ~/ruby . In case anyone's wondering about backups...: Just about everything within ~/ruby is a git project that has a remote repo, and I have a fairly recent Time Machine backup (only 20 days old).

    Read the article

  • How much memory should my rails stack be consuming?

    - by Hamish
    I am running my own webserver on a 384MB VPS from Slicehost to serve two Ruby on Rails applications on separate Virtual Hosts. I am running Phusion Passenger with Apache2. The following is the contents of my Passenger.conf <IfModule passenger_module> PassengerRoot /opt/ruby-enterprise-1.8.6-20090610/lib/ruby/gems/1.8/gems/passenger-2.2.11 PassengerLogLevel 0 PassengerRuby /usr/local/bin/ruby PassengerUserSwitching on PassengerDefaultUser nobody PassengerMaxPoolSize 3 PassengerMaxInstancesPerApp 2 PassengerPoolIdleTime 300 # Ruby on Rails Options RailsAutoDetect on RailsSpawnMethod smart NameVirtualHost *:80 If i do a 'top' on my server I have 314MB used on average, this seems like too much? Am I mistaken and if not what possible steps can I take to reduce the Memory usage? Thanks!

    Read the article

  • Parsing RFC1123 formatted dates in C#, .Net 4.0

    - by Ruby
    Hello, I am trying to parse dates in RFC1123 format (Thu, 21 Jan 2010 17:47:00 EST). Here is what I tried but none worked: DateTime Date = DateTime.Parse(dt); DateTime Date = DateTime.ParseExact(dt, "r", null); Could you please help me out with this? Thanks, Ruby :)

    Read the article

  • What is the easiest way to get an embedded upload progress bar using Ruby/Sinatra/Haml/Passenger/ngi

    - by mmr
    I have a website where people can upload 30+mb of data in a single block, and I want to be able to show them the progress of their upload without causing the web page to become unresponsive, similar to how flash uploads work in gmail. There's this question here, but I don't know if that progress bar is embedded in the page or if it's using the browser's progress bar. I'm also a bit of a web newb, so I'm not sure if it's the 'easiest'. I asked the swfupload guys how to do this here, and the answer I got is 'this tool requires some knowledge to use it' without giving me much help in figuring out where to get started. I also asked this question on ServerFault, and got no response, so maybe that was the wrong place to ask. I'm all for learning new things and so forth, but there are a lot of potential pathways to take here. Where should I start, and what do I need to know to make everything work with sinatra, haml, ruby, passenger, and nginx? Thanks!

    Read the article

  • Can I use ruby rest-client to POST a binary file to an http API?

    - by Angela
    I have been using rest-client in ruby in post XML to a third-party API. I need to be able to include a binary image that's uploaded. How do I do that? Uploading Attachments Both letters and postcards will, in most cases, require the attachment of documents. Those attachments might be PDFs in the case of letters or images in the case of postcards. To uploading an attachment, submit a POST to: http://www.postful.com/service/upload Be sure to include the Content-Type and Content-Length headers and the attachment itself as the body of the request. POST /upload HTTP/1.0 Content-Type: application/octet-stream Content-Length: 301456 ... file content here ... If the upload is successful, you will receive a response like the following: 290797321.waltershandy.2

    Read the article

  • MMS2R and Multiple Images Rails

    - by Maletor
    Here's my code: require 'mms2r' class IncomingMailHandler < ActionMailer::Base ## # Receives email(s) from MMS-Email or regular email and # uploads that content the user's photos. # TODO: Use beanstalkd for background queueing and processing. def receive(email) begin mms = MMS2R::Media.new(email) ## # Ok to find user by email as long as activate upon registration. # Remember to make UI option that users can opt out of registration # and either not send emails or send them to a [email protected] # type address. ## # Remember to get SpamAssasin if (@user = User.find_by_email(email.from) && email.has_attachments?) mms.media.each do |key, value| if key.include?('image') value.each do |file| @user.photos.push Photo.create!(:uploaded_data => File.open(file), :title => email.subject.empty? ? "Untitled" : email.subject) end end end end ensure mms.purge end end end and here's my error: /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/runner.rb:48: undefined method photos' for true:TrueClass (NoMethodError) from /usr/home/xxx/app/models/incoming_mail_handler.rb:23:in each' from /usr/home/xxx/app/models/incoming_mail_handler.rb:23:in receive' from /usr/home/xxx/app/models/incoming_mail_handler.rb:21:in each' from /usr/home/xxx/app/models/incoming_mail_handler.rb:21:in receive' from /usr/local/lib/ruby/gems/1.8/gems/actionmailer-2.3.4/lib/action_mailer/base.rb:419:in receive' from (eval):1 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in eval' from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/runner.rb:48 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from /home/xxx/script/runner:3 I sent an email to the server with two image attachments. Upon receiving the email the server runs "| ruby /xxx/script/runner 'IncomingMailHandler.receive STDIN.read'" What is going on? What am I doing wrong? MMS2R docs are here: http://mms2r.rubyforge.org/mms2r/

    Read the article

  • What are the best blogs for staying up to date on C#, ASP.NET, LINQ, SQL, C++, Ruby, Java, Python?

    - by Arj
    Apologies if this repeats another - but I couldn't fine one like it. My day to day programming spans a fair number of technologies: C#, ASP.NET, LINQ / SQL, C++, Ruby, Java, Python in approximately that order. It's a struggle to keep up to date on any of best practices, new ideas, innovation and improvements, let alone all. Therefore, what would your top 1 blog be in each of these technologies and which technology do you find easiest to stay up to date with? I'd have a bias towards blogs with broad and high level rather than narrow and detailed content / solutions / examples.

    Read the article

  • setting the PATH for Git (not for me)

    - by Iain
    Hi, I'm running OSX 10.6.5 with Git 1.7.1 I have git installed in a non-standard location (though that really should be the standard on a mac;-) in /Library/Frameworks/Git.framework. My own PATH is set fine, git works fine, until... I set up a pre-commit hook with a Ruby script: $ git commit -m "added some Yard documentation" .git/hooks/pre-commit: line 1: #!/usr/bin/env: No such file or directory The pre-commit.sample runs ok, so it appears that git can't find /usr/bin/env, or much else as I've tried shebanging it directly to ruby etc. Just /bin/sh is ok. So, where does Git get it's PATH? because it's not using mine or this wouldn't be happening. And more to the point, how do I get it to see /usr/bin/env ? I've tested the ruby script already, it works. Just to add: $ cat /etc/paths /usr/bin /bin /usr/sbin /sbin /usr/local/bin $ cat /etc/paths.d/git /Library/Frameworks/Git.framework/Programs The first few lines of the Ruby script (which runs via ./pre-commit or ruby pre-commit) #!/usr/bin/env ruby -wKU class String def expand_path File.expand_path self end def parent_dir File.dirname self.expand_path end end

    Read the article

  • apache2 server running ruby on rails application has go daddy cert that works in chrome/firefox and ie 9 but not ie 8

    - by ryan
    I have a rails application up on a linode ubuntu 11 server, running apache2. I have a cert purchased from godaddy, (where we also bought our domain) and the cert is installed on my server. Part of my virtual host file: ServerName my_site.com ServerAlias www.my_site.com SSLEngine On SSLCertificateFile /path/my_site.com.crt SSLCertificateKeyFile /path/my_site.com.key SSLCertificateChainFile /path/gd_bundle.crt The cert works fine in Chrome, FireFox and IE 9+ but in IE 8- I get this error: There is a problem with this website's security certificate. The security certificate presented by this website was issued for a different website's address. I'm hosting multiple rails apps on this same server (4 right now plus some old php sites that don't need ssl). I have tried googling every possible combination of the error/situation that I could think of but at this point I'm shooting in the dark. The closest I could come up with is that some versions if IE don't support SNI. But that doesn't apply here because I am getting the warning on windows 7 machines running IE 8, and the SNI only seemed to apply to IE 8 if the operating system was windows XP. So why is this cert being accepted by all browsers but giving me a warning in IE 8? Edit: So doing a little more digging and I figured out some more. It turns out this is effecting IE 9 as well. However the problem seems to be that IE is not traversing the ssl chain to get to the right cert. FireFox and Chrome when I go to view certificate show the correct one, but IE is showing one of our other sites certificates. REAL QUESTION HERE: That being the case why is IE not getting the right certificate when others are and how do I fix it?

    Read the article

< Previous Page | 405 406 407 408 409 410 411 412 413 414 415 416  | Next Page >