By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:
/people/6
But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> | |
| <title>Stripe Sample Form</title> | |
| <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> | |
| <script type="text/javascript" src="https://ajax.aspnetcdn.com/ajax/jquery.validate/1.8.1/jquery.validate.min.js"></script> | |
| <script type="text/javascript" src="https://js.stripe.com/v1/"></script> | |
| <script type="text/javascript"> |
| class SimpleLinearRegression | |
| def initialize(xs, ys) | |
| @xs, @ys = xs, ys | |
| if @xs.length != @ys.length | |
| raise "Unbalanced data. xs need to be same length as ys" | |
| end | |
| end | |
| def y_intercept | |
| mean(@ys) - (slope * mean(@xs)) |
| require 'aws' | |
| class Rake::Task | |
| def replace &block | |
| @actions.clear | |
| prerequisites.clear | |
| enhance &block | |
| end | |
| end |
| # put this in your .bash_profile | |
| if [ $ITERM_SESSION_ID ]; then | |
| export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND"; | |
| fi | |
| # Piece-by-Piece Explanation: | |
| # the if condition makes sure we only screw with $PROMPT_COMMAND if we're in an iTerm environment | |
| # iTerm happens to give each session a unique $ITERM_SESSION_ID we can use, $ITERM_PROFILE is an option too | |
| # the $PROMPT_COMMAND environment variable is executed every time a command is run | |
| # see: ss64.com/bash/syntax-prompt.html |
| if [ -f "${rvm_path}/scripts/rvm" ]; then | |
| source "${rvm_path}/scripts/rvm" | |
| if [ -f ".rvmrc" ]; then | |
| source ".rvmrc" | |
| elif [ -f ".ruby-version" ] && [ -f ".ruby-gemset" ]; then | |
| rvm use `cat .ruby-version`@`cat .ruby-gemset` | |
| elif [ -f ".ruby-version" ]; then | |
| rvm use `cat .ruby-version` |
| # Main reference was lascarides' post at http://stackoverflow.com/questions/14743447/getting-pdf-from-wickedpdf-for-attachment-via-carrierwave | |
| # estimate.rb | |
| # ... | |
| has_attached_file :pdf, | |
| storage: :s3, | |
| s3_credentials: { | |
| access_key_id: ENV['AWS_ACCESS_KEY_ID'], | |
| secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'], | |
| bucket: ENV['AWS_BUCKET'] |
| <snippet> | |
| <content><