spint

# Present
"brain".present?
#=> true

"".present?
#=> false


#Hash#fetch
items = { :apples => 2, :oranges => 3 }

spint

class LowCoverReport < ActiveRecord::Base

  # This seems to be working fine, but is it the "right" way to achieve this ?
  
  @@country_query = lambda{|o| {:conditions => ["country_id IN (#{o.countries.collect{|c| c.id}.join(', ')})"]} }

  named_scope :for_user, @@country_query
  named_scope :for_session, @@country_query

end

spint

# this only gets cached in @admin if true
# how to cache this also in case of false?

def admin?
  @admin ||= has_role? 'admin'
end


#is the following ok?

spint

// source: http://shaneriley.tumblr.com/post/3462508768/a-sass-mixin-for-cross-browser-css-background-gradients

= gradient-bg($color1, $color2)
  background-color: $color2
  filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0, startColorstr=#{$color1}, endColorstr=#{$color2})
  background-image: -moz-linear-gradient(center top, $color1, $color2)
  background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from($color1), to($color2))
  background-repeat: no-repeat
  
#container

spint

@mixin shadow($a, $b, $color)
  -webkit-box-shadow: $a $a $b $color
  -moz-box-shadow: $a $a $b $color
  box-shadow: $a $a $b $color

@mixin rounding($rad)
  -moz-border-radius: $rad /* FF1+ */
  -webkit-border-radius: $rad /* Saf3-4, iOS 1+, Android 1.5+ */
  border-radius: $rad

spint

// Creates a jQuery UI dialog on the fly, every time a link .user-link is clicked,
// dialog content will be loaded from the url specified by the clicked link

$(function(){
    $(".user-link").live('click', function(){
      var link = $(this);
      $("<div><img src='" + BASEPATH + "images/small-spinner.gif' />  </div>")
        .dialog({
          autoOpen: true, //for info, true is default
          modal: true,

spint

# These are my notes from the PragProg book on CoffeeScript of things that either 
# aren't in the main CS language reference or I didn't pick them up there. I wrote 
# them down before I forgot, and put it here for others but mainly as a reference for 
# myself.

# assign arguments in constructor to properties of the same name:
class Thingie
    constructor: (@name, @url) ->

# is the same as:

spint

// http://stackoverflow.com/questions/15829172/stop-chrome-back-forward-two-finger-swipe
$(document).on('mousewheel', function(e) { 
  var $target = $(e.target).closest('.scrollable-h');
  if ($target.scrollLeft () <= 4) {
    $target.scrollLeft(5);
    return false;
  }
});

spint

# mix.exs file dependencies:
# defp deps do
#   [
#     {:sweet_xml, "~> 0.4.0"},
#     {:json, "~> 0.3.0"}
#   ]
# end

defmodule ElixirXml do
  import SweetXml