Build a plain simple Ecto app step-by-step

create a new project

#validations #constraints

mix new ecommerce_engine --sup
view raw Newapp.ex hosted with ❤ by GitHub

Project

defmodule EcommerceEngine.Product do
end
view raw Product.ex hosted with ❤ by GitHub

create struct

make schema

Validations?

use changeset

create changeset for update

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def print_hi(name)
  puts "Hi, #{name}"
  end
  print_hi('Tom')
  #=> prints 'Hi, Tom' to STDOUT.
  

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class Base
  def two
    1 + 1
  end
end

class Base
  def two
    1 + 1
  end
end

defmodule Foo.Bar do
  def three do
    1 + two()
  end

  defp two do
    2
  end

end