Common Rake Tasks

Display rake Tasks, That have a description

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rake -T

Grouping your dependencies in your Gemfile

A typical rails app makes use of many gems. But is it necessary to install or add all of them to the load path? In most cases the answer is no.

Here is a typical example:

This list was compiled from rails 4, but may also be valid in earlier versions of rails. Use Active Record migrations to alter your database in a structured and organized manner.

List of attributes for SQL types:

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  :binary
  :boolean
  :date
  :datetime
  :decimal
  :float
  :integer
  :primary_key
  :string
  :text
  :time

You may also use database specific types, however this is not database agnostic and is to be used with caution.