alfie-max

# Default Output
2.3.1 :004 > e.start_time.to_json
 => "\"2016-07-11T00:00:00.000Z\""

2.3.1 :010 > e.start_time.to_time.to_json
 => "\"2016-07-11T00:00:00.000+00:00\"" 


# Expected Output
2.3.1 :009 > e.start_time.strftime("%Y-%m-%dT%H:%M:%S").to_json

alfie-max

class Event < ActiveRecord::Base
    def as_json(options = {})
        super(only: [
                      :id, :name, :seats, :price, :images_data, :status,
                      :lat, :long, :address, :city, :zip
                    ]
              ).tap do |h|
                  Category.all.each do |c|
                    h[parameterize(c.name, separator: '_').to_sym] = dishes.type_of(c.name).first
                  end

alfie-max

 @product = # Some product
 @customer = # some customer
 @wishlist = @customer.wishlist.present? ? @customer.wishlist : @customer.create_wishlist
 if @product
         @product_included = @wishlist.products.include?(@product)
         unless @product_included
                 @wishlist.products.push(@product)
                 @wishlist.save
         end
 end

alfie-max

class User < ActiveRecord::Base
  has_many :events, foreign_key: :chef_id, dependent: :destroy
  has_many :reservations, foreign_key: :guest_id
  has_many :guest_events, -> { merge(Reservation.accepted) },
            through: :reservations, source: :event
  has_many :all_guest_events, through: :reservations, source: :event
  has_many :event_notifications, -> { uniq }, through: :all_guest_events,
                                              source: :notifications
  has_many :notifications
end

alfie-max

[1] pry(main)> Date.today
Sun, 31 Jul 2016
[2] pry(main)> Date.yesterday
Fri, 29 Jul 2016
[3] pry(main)> 

alfie-max

class User < ActiveRecord::Base
  has_many :events, foreign_key: :chef_id, dependent: :destroy
  has_many :reservations, foreign_key: :guest_id
  has_many :guest_events, -> { merge(Reservation.accepted) },
            through: :reservations, source: :event
  enum role: [:chef, :guest, :both]
end

class Event < ActiveRecord::Base
  has_many :reservations, dependent: :destroy

alfie-max

git ls-files -z | xargs -0n1 git blame -w | perl -n -e '/^.*\((.*?)\s*[\d]{4}/; print $1,"\n"' | sort -f | uniq -c | sort -n

alfie-max

I'm hunting for the best solution on how to handle keeping large sets of DB records "sorted" in a performant manner.

Problem Description

Most of us have work on projects at some point where we have needed to have ordered lists of objects. Whether it be a to-do list sorted by priority, or a list of documents that a user can sort in whatever order they want.

A traditional approach for this on a Rails project is to use something like the acts_as_list gem, or something similar. These systems typically add some sort of "postion" or "sort order" column to each record, which is then used when querying out the records in a traditional order by position SQL query.

This approach seems to work fine for smaller datasets, but can be hard to manage on large data sets with hundreds (or thousands) of records needing to be sorted. Changing the sort position of even a single object will require updating every single record in the database that is in the same sort group. This requires potentially thousands of wri

alfie-max

God and Puma configuration

Add to Gemfile:

gem 'puma'
gem 'god'

Run in app folder:

bundle install

alfie-max

class Hash
  def compact_me!
    delete_if do |k,v|
      if v.is_a? Hash
        v.compact_me!
        false
      else
        !v.in?([true, false]) && v.blank?
      end
    end