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.
This gist assumes:
As configured in my dotfiles.
start new:
tmux
start new with session name:
| body { | |
| font-family: Helvetica, arial, sans-serif; | |
| font-size: 14px; | |
| line-height: 1.6; | |
| padding-top: 10px; | |
| padding-bottom: 10px; | |
| background-color: white; | |
| padding: 30px; } | |
| body > *:first-child { |
| browser = request.user_agent.browser | |
| version = request.user_agent.version and int(request.user_agent.version.split('.')[0]) | |
| platform = request.user_agent.platform | |
| uas = request.user_agent.string | |
| if browser and version: | |
| if (browser == 'msie' and version < 9) \ | |
| or (browser == 'firefox' and version < 4) \ | |
| or (platform == 'android' and browser == 'safari' and version < 534) \ | |
| or (platform == 'iphone' and browser == 'safari' and version < 7000) \ |
| var system = require('system'); | |
| if (system.args.length < 5) { | |
| console.info("You need to pass in account name, username, password, and path to casperJS as arguments to this code."); | |
| phantom.exit(); | |
| } | |
| var account = system.args[1]; | |
| var username = system.args[2]; | |
| var password = system.args[3]; |
| class Graph: | |
| def __init__(self): | |
| self.nodes = set() | |
| self.edges = defaultdict(list) | |
| self.distances = {} | |
| def add_node(self, value): | |
| self.nodes.add(value) | |
| def add_edge(self, from_node, to_node, distance): |
The program below can take one or more plain text files as input. It works with python2 and python3.
Let's say we have two files that may contain email addresses:
foo bar
ok [email protected] sup
[email protected],wyd
hello world!
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000