ktec

# frozen_string_literal: true
class Things < ApplicationRecord
  scope :filter_after_date, -> (date) {
    where(created_at_as_date.gteq(date))
  }
  scope :filter_before_date, -> (date) {
    where(created_at_as_date.lteq(date))
  }
  def self.created_at_as_date
    Arel::Nodes::NamedFunction.new "DATE", [ arel_table[:created_at] ]

squarism

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key
Cycle iTerm Windows	⌘ + backtick (true of all mac apps and works with desktops/mission control)

justinweiss

# Call scopes directly from your URL params:
#
#     @products = Product.filter(params.slice(:status, :location, :starts_with))
module Filterable
  extend ActiveSupport::Concern

  module ClassMethods
    
    # Call the class methods with names based on the keys in <tt>filtering_params</tt>
    # with their associated values. For example, "{ status: 'delayed' }" would call 

rin

defmodule Example do

  def main(args) do
    args |> parse_args |> process
  end

  def parse_args(args) do
    options = OptionParser.parse(args, switches: [help: :boolean],
                                      aliases: [h: :help])
    case options do

martinos

module SpecHelper
  def local_io(in_str)
    old_stdin, old_stdout = $stdin, $stdout
    $stdin = StringIO.new(in_str)
    $stdout = StringIO.new
    yield
    $stdout.string
  ensure
    $stdin, $stdout = old_stdin, old_stdout
  end

sdball

Sandi Metz’ rules for developers

1. Your class can be no longer than a hundred lines of code.
2. Your methods can be no longer than five lines of code
3. You can pass no more than four parameters and you can't just make it one big hash.
4. In your controller, you can only instantiate one object, to do whatever it is that needs to be done.
5. Your view can only know about one instance variable.
6. Your Rails view should only send messages to that object i.e., no Demeter violations.[ "thunder dome principal". Translated: one model in, one model out! ]
7. Rules are meant to be broken if by breaking them you produce better code. [ ...where "better code" is validated by explaining why you want to break the rule to someone else. ]

andrew

## Rails Upgrade check
#
# Check your github repos for out of date rails apps
#
# usage: $ USERNAME=yourusername PASSWORD=yourpassword ruby railscheck.rb
# or
# usage: $ USERNAME=yourusername PASSWORD=yourpassword ORG=yourorgname ruby railscheck.rb
#
# n.b requires the octokit gem

kytrinyx

Git Commit Snapshots

Snap a picture of yourself on every commit.

Probably Mac OS X only, I haven't looked into others.

$ brew install imagesnap
$ git config --global init.templatedir '~/.git_template'
$ chmod +x post-commit

roidrage

class Form
  include ActiveModel::Validations
  extend ActiveModel::Naming

  def self.wraps(model)
    @wraps = model
  end

  def self.model_name
    ActiveModel::Name.new(@wraps.to_s.classify.constantize)

noahhendrix

1. Open the iTunes subscription (itpc://rubytapas.dpdcart.com/feed)
2. Authenticate with your Ruby Tapas username and password
3. Plug in your device and select it from the Devices menu
4. Open the Podcasts tab
5. Enable "Sync Podcasts"
6. Ensure that RubyTapas is included in the sync list
7. Press Apply
8. Enable Wi-Fi syncing to get the episodes without plugging into your computer (optional)

Note: iTunes Syncing only works with the Podcasts app (https://itunes.apple.com/us/app/podcasts/id525463029?mt=8)