leandrocp

import Ember from 'ember';

export default Ember.Component.extend({
  appName: 'SISPREV COMPONENT'
});

leandrocp

default: &default
  adapter: postgresql
  encoding: unicode
  pool: 5
  username: postgres
  password: pass123
  host: localhost
  port: 5432

development:

leandrocp

default: &default
  adapter: postgresql
  encoding: unicode
  pool: 5
  username: postgres
  password: pass123
  host: localhost
  port: 5432

development:

leandrocp

# elixir
ages = [10, 18, 25]

def calc(x) do
  # reuse x for some reason
  List.delete(x, 10)
end

calc(ages)
ages

leandrocp

case File.read("my_file.ex") do
  {:ok, contents} ->
    case Code.eval_string(contents) do
      {res, _binding} ->
        {:ok, res}
      error ->
        error
  error -> error
    error
end

leandrocp

# Find customer, get all his orders, calc 5% tax

# Multiple line
customer = DB.find_customer(20)
orders = DB.find_orders_of_customer(customer)
taxed_orders = tax_orders(orders, 5)

# One line
tax_orders(DB.find_orders_of_customer(DB.find_customer(20)), 5)

leandrocp

iex> x = 1
1
iex> 1 = x
1
iex> 2 = x
** (MatchError) no match of right hand side value: 1

leandrocp

# function that blocks for 2 seconds and return the param
slow_calc = fn(input) ->
 :timer.sleep(2000)
 input
end

1..5 |> Enum.map(&slow_calc.(&1)) # call slow_calc from 1 to 5
#> [1, 2, 3, 4, 5]                # takes 10 seconds to return (2 secs each)

# parellelize slow_calc

leandrocp

Lotus::Model.migration do
  up do
    create_table :my_table do
      column :code, :integer, null: false
    end

    execute %Q(COMMENT ON TABLE my_table IS 'You should do it')
    execute %Q(COMMENT ON COLUMN my_table.code IS 'Easy and useful')
  end
end

leandrocp

Lotus::Model.migration do
  up do
    create_table :my_table do
      column :code, :integer, null: false
      index :code
    end
  end
end