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###undefined local variable or method ABC

###undefined method XYZ for Nil:NilClass

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Fenced code blocks inside ordered and unordered lists

1. This is a numbered list.

2. I'm going to include a fenced code block as part of this bullet:

   Code
   More Code
   

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These steps are for Mavericks. Mileage will vary for older versions of Mac OS X but the broad strokes still apply. Google is your friend if you hit a snag. Comments welcome.

Installing Ruby & Rails on Mac OSX Mavericks

Install homebrew.

$ ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

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Want to know the future location of a file upload? Want fast responses by moving file uploads into a background task with something like Sidekiq? Building an API and you want to immediately tell the client where the upload is going to be before actually uploading the file? Then try the tweaks below. This is definitely a monkey patch - mileage may vary.

class PhotoUploader < CarrierWave::Uploader::Base
  
  # Note:You've got to be using this option for the magic to work. It's
  # used by default, though, so you should be fine unless you commented
  # it out.
  #
  def store_dir

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Setup AWS Simple Notification Service (SNS) in Rails 4

This is a simple tutorial for setting up AWS SNS with Rails 4. A few details on the implementation:

• Instead of saving a device_token as an attribute of Users, I save all SNS data and implementation with a separate model - SNSEndpoints.
• SNS is region specific. I'm using us-west-1 as most of our startup's users are on the west coast. You can use whatever region you like (or the default), just keep in mind your AWS has to be configured for the same region as your SNS app (which you determine during setup in the AWS web console.

Tutorial

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{"meta":{"code":200},"response":{"fallbackCategory":{"target":{"type":"path","url":"\/venue\/explore","params":{"query":"wifi","sw":"34.056183,-118.284454","ne":"34.100310,-118.232118"}},"refinements":[{"query":"coffee shop"}]},"suggestedFilters":{"header":"Tap to show:","filters":[{"name":"Open now","key":"openNow"},{"name":"$-$$$$","key":"price"}]},"geocode":{"what":"","where":"90026","center":{"lat":34.0766,"lng":-118.2646},"displayString":"90026, CA, United States","cc":"US","geometry":{"bounds":{"ne":{"lat":34.10031,"lng":-118.232118},"sw":{"lat":34.056183,"lng":-118.284454}}},"longId":"162411061580814818"},"headerLocation":"Current map view","headerFullLocation":"Current map view","headerLocationGranularity":"unknown","query":"wifi","totalResults":183,"suggestedBounds":{"ne":{"lat":34.109234265675475,"lng":-118.22999124722052},"sw":{"lat":34.04305066953355,"lng":-118.29043410836876}},"groups":[{"type":"Recommended Places","name":"recommended","items":[{"reasons":{"count":0,"items":[{"summary":"This spot

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Intro to Ruby

###by thebucknerlife

---

#Ruby

• Birthday: February 24, 1993

• Creator: Yukihiro Matsumoto (Matz)

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# config/routes.rb

GifVault::Application.routes.draw do

    # This route sends requests to our naked url to the *cool* action in the *gif* controller.
    root to: 'gif#cool'

    # I've created a gif controller so I have a page I can secure later. 
    # This is optional (as is the root to: above).
    get '/cool' => 'gif#cool'

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# app/controllers/users_controller.rb

class UsersController < ApplicationController

    def new
    end

    def create
    end   

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<!-- app/views/users/new.html.erb -->

<h1>Signup!</h1>

<%= form_for :user, url: '/users' do |f| %>

  Name: <%= f.text_field :name %>
  Email: <%= f.text_field :email %>
  Password: <%= f.password_field :password %>
  Password Confirmation: <%= f.password_field :password_confirmation %>