fernandoaleman

Problem

Installing mysql2 gem errors on MacOS Catalina with MySQL 5.7.

Solution

Make sure openssl is installed on Mac via Homebrew.

brew install openssl

coorasse

begin
  require 'bundler/inline'
rescue LoadError => e
  warn 'Bundler version 1.10 or later is required. Please update your Bundler'
  raise e
end

gemfile(true) do
  source 'https://rubygems.org'
  gem 'rails', '~> 5.2'

jcypret

gem "phonelib"

jodosha

1. Setup

rails new blog
cd blog
hanami new bookshelf
vim Gemfile # add `hanami`
bundle
vim bookshelf/config/environment.rb # See Note 1

zubaer-ahammed

Reset mysql root password in Mac OS:

First Stop MySQL:

1. Go to: 'System Preferences' >> 'MySQL' and stop MySQL

OR,

1. sudo /usr/local/mysql/support-files/mysql.server start
2. sudo /usr/local/mysql/support-files/mysql.server stop

towry

require_relative "customer"
require_relative "user"

# context bind role to object.
# by using the extend method in ruby.
# now the data object has some behaviors that get from the role class(Customer).
class Context
  def initialize(user, book)
    @customer, @book = user, book
    @customer.extend(Customer)

fernandoaleman

brew tap homebrew/versions
brew install v8-315

gem install libv8 -v '3.16.14.13' -- --with-system-v8
gem install therubyracer -- --with-v8-dir=/usr/local/opt/v8-315

bundle install

olivierlacan

This guide assumes that you recently run brew upgrade postgresql and discovered to your dismay that you accidentally bumped from one major version to another: say 9.3.x to 9.4.x. Yes, that is a major version bump in PG land.

First let's check something.

brew info postgresql

The top of what gets printed as a result is the most important:

phlegx

See question on stack overflow: http://stackoverflow.com/questions/28595636/rails-4-how-to-give-alias-names-to-includes-and-joins-in-active-record-que

- Model Student and model Teacher are both STI models with super class model User
- Model Story is a STI model with super class model Task
- includes() and joins(), both fails

Rails alias naming convention (includes() and joins())

- One model as parameter
  - is base model (includes(:users))

ludyna

# DCI EXAMPLE IN RUBY (with some prototype elements)
# Blog post: https://www.ludyna.com/oleh/dci-example-in-ruby
# 
# More info: 
#
#   Creator of MVC & DCI, Trygve Reenskaug: DCI: Re-thinking the foundations of 
#   object orientation and of programming
#   http://vimeo.com/8235394
#
#   James Coplien: Why DCI is the Right Architecture for Right Now