POSTing and PUTting from cURL
>curl -X PUT -d "post[title]=first post from curl""http://localhost:3000/posts/1" -H "Accept: text/xml">curl -d "post[title]=first post from curl""http://localhost:3000/posts" -H "Accept:...
View ArticleDangerousAttributeError
I came across this weird sounding exception while creating a record. At first I didn't know what was wrong with my table. After a little probing I figured it was being caused by an attribute called...
View ArticleFile.new
File.new(file_name).close won't do what I intend to do, i.e. create a file. Instead File.new(file_name,'w').close does the trick. The problem is in the first case the second argument defaults to 'r'...
View ArticleAdd localhost.localdomain to local DNS (or hosts file)
Goto Start > Run Type in "system32" (without the quotations) Goto the folder called "drivers" Goto the folder called "etc" The hosts file should be in there. Just open it up with notepad or...
View ArticleMigrating in a production environment
rake db:migrate RAILS_ENV=productionorrake db:migrate RAILS_ENV="production"
View ArticleGetting the text from a drop down select box
var e = $('element_id');var idx = e.selectedIndex;e.options[idx].text;Linkshttp://www.webdevelopersnotes.com/tips/html/getting_the_text_from_an_html_drop_down_selection_list.php3
View ArticleGIT - Ignore uncommitted changes in already tracked files
in order to ignore uncommitted changes in already tracked files, please refer to the git update-index --assume-unchanged documentationhttp://www.kernel.org/pub/software/scm/git/docs/git-update-index.html
View ArticleFind out mysql socket
Enter mysql command line with 'mysql -u root -p'mysql>mysql status
View ArticleBasic Authentication using Apache and mod_rails
http://code.google.com/p/phusion-passenger/issues/detail?id=94&can=1&q=allow&colspec=ID%20Type%20Status%20Priority%20Milestone%20Stars%20SummaryCopy pasted from the above link:What steps...
View ArticleSorting records based on the exact order of passed parameters to finder
http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/dde7efa8f8f455e5/e4090afeb6c27608?lnk=gst&q=loveajax#e4090afeb6c27608In Ruby:order = [5,2,3]Project.find(:all, :conditions =>...
View ArticleCommon MySQL stuff
To modify an existing column definition:ALTER TABLE applications modify id INTEGER NOT NULL AUTO_INCREMENT FIRST;To rename a column:ALTER TABLE applications CHANGE old_col new_col;
View ArticleDuplicating tables and problem with the structure
To duplicate a table:mysql> CREATE TABLE products SELECT * FROM old_products;But the problem with above statement is structure of products may not be the same as old_products. Attribute properties...
View ArticleInstalling sqlite for rails development
sudo apt-get install sqlite3sudo gem install sqlite3-rubyrails my_projectrake db:create
View ArticleCurrent option not getting selected in select box?
I have a f.select(:attr1, options) in one of my form. But after I submit and if there are any errors in the form it should show the errors and retain all the values in the form. But this attr1 was...
View Articleafter_initialize and after_find can't be private
after_initialize and after_find can't be private. Another note: they need to be explicitly define like:def after_initialize# do stuff here.end
View ArticleUsing define_method to create a method that takes arguments
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/211436http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/211440Example:Setting.all.each do |setting|define_method setting.name do...
View ArticleErrno::ECONNREFUSED: Connection refused - connect(2)
Errno::ECONNREFUSED: Connection refused - connect(2)If you get this error, one of the reason could be incorrect or no ActionMailer settings. The following structure needs to be present in your...
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