vincentlkl

Setup Google Cloud Platform (GCP)

• Login to https://console.cloud.google.com/
• Create a project (take note of project's ID)
• Enable billing
• Go to https://console.cloud.google.com/compute/instances
• Create a VM instance
  • Name: use a semantic name (take note of instance's name)
  • Region and zone: most local
  • Machine type: smallest possible f1-micro

vincentlkl

1. SSH to server 
2. $ sudo gem install backup
3. $ backup generate:model --trigger=db_backup --databases='postgresql' --storages='dropbox'
4. Edit the /Backup folder
5. Test it manually 
   $ backup perform -t db_backup
6. Install whenever at /Backup folder
   $ sudo gem install whenever
7. $ mkdir config
8. $ wheneverize

vincentlkl

# install necessary plugins
sudo apt-get update
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev nodejs

cd
git clone https://github.com/rbenv/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
exec $SHEL

vincentlkl

# text
<%= best_in_place @item, :name, :type => :input %>

# textarea
<%= best_in_place @item, :name, :type => :textarea %>

# select dropdown
<%= best_in_place @item, :name, :type => :select, :collection => [[1, "Table"],[2, "Chair"]] %>

# boolean

vincentlkl

# delayed job method on model
def process_images(urls)
  require 'open-uri'
  item = self
  image_urls   = urls.split(", ")

  image_urls.each do |url|
    file = URI.parse(url).open
    item.images.build(:cat => cat, :avatar => file)
  end	

vincentlkl

<%= s3_uploader_form callback_url: s3_image_path,  id:"s3-form" do %>
  <%= file_field_tag :file, multiple: true, :class => "item-s3form-input", :accept => ".png,.jpg,.jpeg,.gif" %>
  <button type="button" class="btn btn-primary add-images" data-dismiss="modal">Add Photograph of break Images</button>
<% end %>

vincentlkl

# config/initializers/s3_direct_upload.rb
S3DirectUpload.config do |c|
  c.access_key_id        = ENV['AWS_ACCESS_KEY_ID']
  c.secret_access_key    = ENV['AWS_SECRET_ACCESS_KEY']
  c.bucket               = ENV['AWS_DIRECT_BUCKET']
end

vincentlkl

$('.ajax-datatable').DataTable
  sPaginationType: "full_numbers"
  bProcessing: true
  bServerSide: true
  sAjaxSource: $('.ajax-datatable').data('source')

vincentlkl

def index_datatable
  respond_to do |format|
    format.json { render json: ItemsDatatable.new(view_context) }
  end
end

vincentlkl

class ItemsDatatable
  delegate :params, :h, to: :@view

  def initialize(view)
    @view = view
  end

  def as_json(options = {})
    {
      sEcho: params[:sEcho].to_i,