| literally always have to look up the meaning of :limit in migrations when it comes to integer values. Here's an overview. Now let's memorise it (oh, this works for MySQL, other databases may work differently): | |
| :limit Numeric Type Column Size Max value | |
| 1 tinyint 1 byte 127 | |
| 2 smallint 2 bytes 32767 | |
| 3 mediumint 3 byte 8388607 | |
| nil, 4, 11 int(11) 4 byte 2147483647 | |
| 5..8 bigint 8 byte 9223372036854775807 | |
| Note: by default MySQL uses signed integers and Rails has no way (that I know of) to change this behaviour. Subsequently, the max. values noted are for signed integers. |
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> | |
| <head> | |
| <title>Stripe OAuth Example</title> | |
| </head> | |
| <body> | |
| <%= @access_token %> | |
| </body> | |
| </html> |
| /** | |
| * strtr() for JavaScript | |
| * Translate characters or replace substrings | |
| * | |
| * @author Dmitry Sheiko | |
| * @version strtr.js, v 1.0.2 | |
| * @license MIT | |
| * @copyright (c) Dmitry Sheiko http://dsheiko.com | |
| **/ |
| <% pages = sitemap.resources.find_all{|p| p.source_file.match(/\.html/) } %> | |
| <?xml version="1.0" encoding="UTF-8"?> | |
| <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> | |
| <% pages.each do |p| %> | |
| <url> | |
| <loc>http://youdomain.com/<%=p.destination_path.gsub('/index.html','')%></loc> | |
| <priority>0.7</priority> | |
| </url> | |
| <% end %> | |
| </urlset> |
⇐ back to the gist-blog at jrw.fi
Or, 16 cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.
I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.
This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the aweso
| Fix to iOS iframe height issue | |
| <iframe id="stupid-iframe" height="200" src="a-file.html"></iframe> | |
| <html> | |
| <body> | |
| <div class="iframe-wrapper" style="width: 100%; height: 200px; overflow: auto; -webkit-overflow-scrolling: touch;"> | |
| </div> | |
| </body> |
| # This is a skeleton for testing models including examples of validations, callbacks, | |
| # scopes, instance & class methods, associations, and more. | |
| # Pick and choose what you want, as all models don't NEED to be tested at this depth. | |
| # | |
| # I'm always eager to hear new tips & suggestions as I'm still new to testing, | |
| # so if you have any, please share! | |
| # | |
| # @kyletcarlson | |
| # | |
| # This skeleton also assumes you're using the following gems: |
| /* | |
| # Usage in html template: | |
| "xxx | nl2br" | |
| <div ng-bind-html=" YourString | nl2br "></div> | |
| or: |
#Simple Authentication with Bcrypt
This tutorial is for adding authentication to a vanilla Ruby on Rails app using Bcrypt and has_secure_password.
The steps below are based on Ryan Bates's approach from Railscast #250 Authentication from Scratch (revised).
You can see the final source code here: repo. I began with a stock rails app using rails new gif_vault
##Steps
