jcasimir

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

maxim

In Rails 3

NOTE: This post now lives (and kept up to date) on my blog: http://hakunin.com/rails3-load-paths

If you add a dir directly under app/

Do nothing. All files in this dir are eager loaded in production and lazy loaded in development by default.

If you add a dir under app/something/

jamesyang124

Ruby Metaprogramming Guide

Note: This guide works with Ruby 2.6+ through Ruby 3.x, with modern Ruby 3.x features highlighted where applicable. Core metaprogramming concepts remain consistent across Ruby versions.

This document has been collaboratively updated and modernized through an interactive process with Claude Code, revised with examples, visual diagrams, and Ruby 3.x compatibility.

Table of Contents

1. Key Concepts
2. Self

mttdffy

module JSHelpers
  module JQueryUI

    # type inside an autocomplete field and pick a value.
    #
    # @param [String] field selector of the autocomplete field
    # @param [Hash] options details about what to search and what to select
    # @param options [String] :with the text to type in the autocomplete field
    # @param options [String] :select the text value of the autocomplete resuilt you
    #   want to pick. If this option is not present, the first result will be picked.

mttdffy

module Mongoid
  module Unvalidate
    extend ActiveSupport::Concern

    module ClassMethods

      # Removes specified validations from existing models for a given field
      #
      # @param [Symbol] field the field to remove validations from
      # @param [Array<Symbol> | Symbol] validations validations to remove from field

leompeters

You can use these settings on your RubyMine [http://rubymine.org]. Here are some RubyMine Live Templates.

pazdera

# Quick summary of the function
#
# {ObjectName#method Optional Title}
# {Class::CONSTANT Optional Title} 
# {#method_inside_current_namespace}
#
# @see #method
#
# @param one [Fixnum] First parameter
# @param two [Fixnum] Second parameter

dchandekstark

ActiveSupport::Concern.module_eval do
  
  WARNINGS = [
    "Are you sure you want to this?",
    "Come on, now, really?",
    "Time to refactor?",
    "Read http://blog.coreyhaines.com/2012/12/why-i-dont-use-activesupportconcern.html ?",
    "Please don't do this without a good reason.",
    "No, chunking your mega-class is not a good reason.",
    "What objects are you trying to hide?",

Pysis868

# Config for GNU GRand Unified Bootloader (GRUB) (2)
  # /boot/grub2/grub.cfg
  # or
  # /boot/grub/grub.cfg
  # Mostly only 'legacy' CSM/BIOS boot methods currently.
  # Unable to boot loop entries with Secure Boot

# Notes:
  # Description:
    # This grub.cfg file was created by Lance http://www.pendrivelinux.com

wazery

YARD CHEATSHEET http://yardoc.org

Templates to remind you of the options and formatting for the different types of objects you might want to document using YARD.

Modules

# Namespace for classes and modules that handle serving documentation over HTTP
# @since 0.6.0