gkop

Rails 4 New Features

Noisebridge Ruby and Rails Class

2013-01-08

Gabe Kopley

[email protected]

tototoshi

-- http://stackoverflow.com/questions/1124603/grouped-limit-in-postgresql-show-the-first-n-rows-for-each-group
-- http://www.postgresql.jp/document/9.2/html/tutorial-window.html

CREATE TABLE empsalary (
  depname varchar(10) not null
  , empno integer not null
  , salary integer not null
);

INSERT INTO empsalary (depname, empno, salary) VALUES ('develop', 11, 5200);

dmitry

rewrite ^/sitemap1.xml.gz /sitemaps/$host/sitemap1.xml.gz last;
rewrite ^/sitemap_index.xml.gz /sitemaps/$host/sitemap_index.xml.gz last;

# or 

    location /sitemap {
        # it can be already switched on for globally
        # gzip_static on;

        rewrite ^/sitemap.xml /sitemaps/$host/sitemap.xml last; # that's will catch .gz files and served as normal static file, but with gzip header

jrochkind

Rails has a handy truncate helper (which is actually mostly a method added to String ), but it warns you it's not safe to use on html source, it'll cut off end tags and such.

What if you want an HTML safe one? There are a variety of suggested solutions you can google, none of which were quite robust/powerful enough for me.

So I started with my favorite, by Andrea Singh, using nokogiri.

But:

• I modified it to not monkey-patch Nokogiri, but be a static method instead (sadly making already confusing code yet more confusing, but I didn't want to monkey patch nokogiri)

mattetti

SQL_PARSER_REGEXP = /^(\w+)\s(\w+)\s\W*(\w+)/

ActiveSupport::Notifications.subscribe "sql.active_record" do |name, start, finish, id, payload|
  if payload[:name] == "SQL"
    if Thread.current[:stats_context] # where I store the name of the request context
      payload[:sql] =~ SQL_PARSER_REGEXP  # $1 will be the query type, $3 the table
      Statsd.timing("#{Thread.current[:stats_context]}.sql.#{$3}.#{$1}.query_time",
                        (finish - start) * 1000, 1)
    end
  end

SaitoWu

# unicorn
# tee_input.rb 36L

@tmp = @len && @len <= @@client_body_buffer_size ?
           StringIO.new("") : Unicorn::TmpIO.new

# Puma
# client.rb 106L

if remain > MAX_BODY

josephwecker

#!/bin/bash
# License: Public Domain.
# Author:  Joseph Wecker, 2012
#
# -- DEPRICATED --
# This gist is slow and is missing .bashrc_once
# Use the one in the repo instead! https://github.com/josephwecker/bashrc_dispatch
# (Thanks gioele)
#
# Are you tired of trying to remember what .bashrc does vs .bash_profile vs .profile?

maccman

# Usage: redis-cli publish message.achannel hello

require 'sinatra'
require 'redis'

conns = Hash.new {|h, k| h[k] = [] }

Thread.abort_on_exception = true

get '/' do

maccman

# Usage: redis-cli publish message hello

require 'sinatra'
require 'redis'

conns = []

get '/' do
  erb :index
end

dhh

bcx david$ rake stats
+----------------------+-------+-------+---------+---------+-----+-------+
| Name                 | Lines |   LOC | Classes | Methods | M/C | LOC/M |
+----------------------+-------+-------+---------+---------+-----+-------+
| Controllers          |  3704 |  2942 |      72 |     479 |   6 |     4 |
| Helpers              |  1901 |  1529 |      13 |     261 |  20 |     3 |
| Models               |  5310 |  4116 |      50 |     653 |  13 |     4 |
| Libraries            |  2167 |  1593 |      51 |     200 |   3 |     5 |
| Integration tests    |   297 |   217 |       6 |       1 |   0 |   215 |
| Functional tests     |  3897 |  3065 |      61 |      11 |   0 |   276 |