{"id":327,"date":"2014-02-21T18:46:52","date_gmt":"2014-02-21T09:46:52","guid":{"rendered":"http:\/\/lovelinux.mydns.jp\/?p=327"},"modified":"2014-11-07T21:33:38","modified_gmt":"2014-11-07T12:33:38","slug":"how-to-debugging-rails-app-with-eclipse-on-ubuntu-steps-intosteps-oversteps-out","status":"publish","type":"post","link":"https:\/\/lovelinux.mydns.jp\/?p=327","title":{"rendered":"How to debug Rails app with eclipse on Ubuntu.(steps into,steps over,steps out)"},"content":{"rendered":"

I introduce you, how to debug Ruby on Rails Application with Eclipse.<\/p>\n

Hi,I’m japanese. So my english ability is poor. Just be patient. <\/p>\n

Install Eclipse and JDK<\/h4>\n

Download JDK from Oracle web site.
\nDownload Eclipse from Eclipse web site.<\/p>\n

I install JDK and Eclipse into \/usr\/java.<\/p>\n

[bash]
\n$ sudo mkdir \/usr\/java
\n$ sudo mv ~\/Downloads\/eclipse-standard-kepler-SR1-linux-gtk.tar.gz \/usr\/java
\n$ sudo mv ~\/Downloads\/jdk-7u51-linux-i586.tar.gz \/usr\/java\/<\/p>\n

$ cd \/usr\/java
\n$ sudo tar xvzf jdk-7u51-linux-i586.tar.gz
\n$ sudo tar xvzf eclipse-standard-kepler-SR1-linux-gtk.tar.gz
\n[\/bash]<\/p>\n

Setting environment variables<\/h4>\n

add this settings into ~\/.bashrc<\/p>\n

[bash]<\/p>\n

JAVA_HOME=\/usr\/java\/jdk1.7.0_45
\nPATH=$PATH:$JAVA_HOME\/bin
\nCLASSPATH=$JAVA_HOME\/jre\/lib\/rt.jar<\/p>\n

export JAVA_HOME PATH CLASSPATH<\/p>\n

[\/bash]<\/p>\n

refresh environment variables and check JAVA_HOME.
\n[bash]
\n$ source ~\/.bashrc
\n$ echo $JAVA_HOME
\n\/usr\/java\/jdk1.7.0_45
\n[\/bash]<\/p>\n

Install Aptana plugin<\/h4>\n

On Eclipse Menubar, Help > Install New Software.<\/p>\n

push Add button and input this url.<\/p>\n

http:\/\/download.aptana.com\/studio3\/plugin\/install<\/p>\n

and click OK to install plugin.<\/p>\n

\"Screenshot<\/a><\/p>\n

\"Screenshot<\/a><\/p>\n

Creating Rails project<\/h4>\n

On Eclipse Menubar, File > New > Other<\/p>\n

\"\u30e1\u30cb\u30e5\u30fc_002\"<\/a><\/p>\n

\"\u30e1\u30cb\u30e5\u30fc_001\"<\/a><\/p>\n

select Rails Project and click Next.
\n\"Screenshot<\/a><\/p>\n

input Project Name “testproj” . Click Finish.<\/p>\n

\"Screenshot<\/a><\/p>\n

Start webric server<\/h4>\n

[bash]
\n$ cd ~\/workspace\/testproj
\n$ rails s<\/p>\n

Could not find a JavaScript runtime. See https:\/\/github.com\/sstephenson\/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
\n[\/bash]<\/p>\n

if “Could not find a JavaScript runtime” is shown ,install nodejs.<\/p>\n

[bash]
\n$ sudo apt-get install nodejs
\n[\/bash]<\/p>\n

if you use mysql, install libmysqlclient-dev.<\/p>\n

[bash]
\n$ sudo apt-get install libmysqlclient-dev
\n[\/bash]<\/p>\n

Test Running<\/h4>\n

[bash]
\n$ rails s<\/p>\n

=> Booting WEBrick
\n=> Rails 4.0.0 application starting in development on http:\/\/0.0.0.0:3000
\n=> Run `rails server -h` for more startup options
\n=> Ctrl-C to shutdown server
\n[2014-01-16 16:59:59] INFO WEBrick 1.3.1
\n[2014-01-16 16:59:59] INFO ruby 2.0.0 (2013-11-22) [i686-linux]
\n[2014-01-16 16:59:59] INFO WEBrick::HTTPServer#start: pid=19531 port=3000
\n[\/bash]<\/p>\n

Access Rails app with your browser.
\nURL is http:\/\/localhost:3000<\/p>\n

if the top page is shown,please shutdown rails server with Ctrl + C key.<\/p>\n

\"rails-1\"<\/a><\/p>\n

Debugging with Eclipse<\/h4>\n

On Eclipse Menubar, Window > Show View > Servers.<\/p>\n

\"\u30e1\u30cb\u30e5\u30fc_003\"<\/a><\/p>\n

Bottom of Eclipse, Server view is shown.
\nSelect testproj ,and click Edit button.<\/p>\n

\"Web<\/a><\/p>\n

Here is very very important Point!!<\/strong>
\nAs a default, value of Host\/IP is 0.0.0.0<\/strong>\u3000, change 127.0.0.1<\/strong> !!
\nand click OK.<\/p>\n

\"Edit<\/a><\/p>\n

click debug button for debugging rails.<\/p>\n

\"Web<\/a><\/p>\n

if “Ruby program \/home\/xxx\/workspace\/testproj\/script\/rails does not exist.” is shown, create script folder.<\/p>\n

[bash]
\n$ cd ~\/workspace\/testproj
\n$ cp bin\/ script -R
\n[\/bash]<\/p>\n

\"Problem<\/a><\/p>\n

install IDE debugger.
\n[bash]
\n$ gem install ruby-debug-ide
\n[\/bash]<\/p>\n

Create a sample application<\/h4>\n

[bash]
\n$ rails generate scaffold Sample name:string email:string
\n$ rake db:migrate
\n[\/bash]<\/p>\n

Test Running<\/h4>\n

click debug button on server view for debugging rails.
\naccess http:\/\/localhost:3000\/samples with your browser.<\/p>\n

\"Web<\/a><\/p>\n

\"Testproj<\/a><\/p>\n

Now debugging with eclipse<\/h4>\n

Open app>>controllers>>samples_controller.rb from Eclipse Project Explorer.
\nand set break point.<\/p>\n

\"Web<\/a><\/p>\n

[bash]
\ndef index
\n @samples = Sample.all
\nend
\n[\/bash]<\/p>\n

reload the page with your browser.<\/p>\n

if a screen like this is shown .you get a debugging environment of Rails app.Congratulations!<\/p>\n

\"Debug<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

I introduce you, how to debug Ruby on Rails Application with Eclipse. Hi,I’m japanese. So my english ability is poor. Just be patient. Install Eclipse and JDK Download JDK from Oracle web site. Download Eclipse from Eclipse web site. I install JDK and Eclipse into \/usr\/java. [bash] $ sudo mkdir \/usr\/java $ sudo mv ~\/Downloads\/eclipse-standard-kepler-SR1-linux-gtk.tar.gz \/usr\/java $ sudo mv ~\/Downloads\/jdk-7u51-linux-i586.tar.gz \/usr\/java\/ $ cd \/usr\/java $ sudo tar xvzf jdk-7u51-linux-i586.tar.gz $ sudo tar xvzf eclipse-standard-kepler-SR1-linux-gtk.tar.gz [\/bash] Setting environment variables add this settings into ~\/.bashrc [bash] JAVA_HOME=\/usr\/java\/jdk1.7.0_45 PATH=$PATH:$JAVA_HOME\/bin CLASSPATH=$JAVA_HOME\/jre\/lib\/rt.jar export JAVA_HOME PATH CLASSPATH [\/bash] refresh environment variables and check JAVA_HOME. [bash] $ source ~\/.bashrc $ echo $JAVA_HOME \/usr\/java\/jdk1.7.0_45 [\/bash] Install Aptana plugin On Eclipse Menubar, Help > Install New Software. push Add button and input this url. http:\/\/download.aptana.com\/studio3\/plugin\/install and click OK to install plugin. Creating Rails project On Eclipse Menubar, File > New > Other select Rails Project and click Next. input Project Name “testproj” . Click Finish. Start webric server [bash] $ cd ~\/workspace\/testproj $ rails s Could not find a JavaScript runtime. See https:\/\/github.com\/sstephenson\/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable) [\/bash] if “Could not find a JavaScript runtime” is shown ,install nodejs. [bash] $ sudo apt-get install nodejs [\/bash] if you use mysql, install libmysqlclient-dev. [bash] $ sudo apt-get install libmysqlclient-dev [\/bash] Test Running [bash] $ rails s => Booting WEBrick => Rails 4.0.0 application starting in development on http:\/\/0.0.0.0:3000 => Run `rails server -h` for more startup options => Ctrl-C to shutdown server [2014-01-16 16:59:59] INFO WEBrick 1.3.1 [2014-01-16 16:59:59] INFO ruby 2.0.0 (2013-11-22) [i686-linux] [2014-01-16 16:59:59] INFO WEBrick::HTTPServer#start: pid=19531 port=3000 [\/bash] Access Rails app with your browser. URL is http:\/\/localhost:3000 if the top page is shown,please shutdown rails server with Ctrl + C key. Debugging with Eclipse On Eclipse Menubar, Window > Show View > Servers. Bottom…<\/p>\n","protected":false},"author":1,"featured_media":390,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[6,2],"tags":[31,71,19],"class_list":{"0":"post-327","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-rails","8":"category-2","9":"tag-eclipse","10":"tag-rails","11":"tag-ubuntu"},"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t