eliotsykes

Apps and engines searched can be found at https://github.com/eliotsykes/real-world-rails

$ ag 'sanitize_sql_array'
apps/canvas-lms/app/models/attachment.rb
1169:        clauses << sanitize_sql_array(["(attachments.content_type=?)", type])

apps/canvas-lms/app/models/enrollment/query_builder.rb
141:      ActiveRecord::Base.send :sanitize_sql_array, [sql, *args]

eliotsykes

How to setup PostgreSQL & Rails on Cloud9

At time of writing, Cloud9 has PostgreSQL pre-installed, so you won't need to install it yourself. However, its not running by default, so you will need to start it with this command in the terminal:

sudo service postgresql start

Change the PostgreSQL password to 'password' (or choose a different password):

eliotsykes

#!/bin/sh

# Create this file in the bin/ directory of your
# Rails app.

# Run this script to deploy the app to Heroku.

set -e

# Push changes to Heroku

eliotsykes

# app/models/audit.rb
Audit = Audited.audit_class

class Audit
  scope :foo, -> { where("created_at > 0") }
  scope :bar, -> { where("updated_at > 0") }
end

# Using scopes example:
# Audit.foo.bar

eliotsykes

# Copy NaiveHash (end of this file) and rename to RubyHash.
#
# Try using RubyHash in irb/pry and store some data in it
# and notice it has problems with remembering all of your data due
# to RubyHash not handling hash collisions:
#
# require_relative 'ruby_hash'
# h = RubyHash.new
# ('a'..'z').each do |char|
#   h[char] = char.upcase

eliotsykes

+++ b/app/scopes/base_scopes.rb
+class BaseScopes < SimpleDelegator
+
+  def initialize
+    super self.class.relation
+  end
+
+  def self.method_missing(method_name, *args)
+    method = self.new.method(method_name)
+    method.to_proc

eliotsykes

In Terminal

mkdir ~/.bash

Copy the raw git-prompt.sh file from git contrib in to the ~/.bash directory: https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh

Inside ~/.bashrc or ~/.bash_profile (choose the file where you normally put any bash customizations/setup), add the lines:

eliotsykes

class Api::ApiController < ActionController::Base
  protect_from_forgery with: :null_session

  def self.disable_turbolinks_cookies
    skip_before_action :set_request_method_cookie
  end

  disable_turbolinks_cookies

end

eliotsykes

fruits = ['apples', 'bananas', 'coconuts', 'dates', 'elderberry']

# Array[ ] accepts an integer to lookup by index, this is what we
# do most of the time when we work with arrays:
fruits[0] #=> 'apples'
fruits[2] #=> 'coconuts'
fruits[4] #=> 'elderberry'

# Array[ ] accepts negative integers too. These get special treatment. They
# count backwards from the end of the array:

eliotsykes

// Examples

// Yes, "router.router" twice - this assumes that the router is being injected
// into the component. Otherwise lookup 'router:main'
// One of these will be of interest, figure out which one you want:
this.get('router.router.state');
this.get('router.router.state.params');

this.get('container').lookup('controller:application').currentPath;