ruby on rails 4 - how do i dry the callback functions in

Prashanth Mannar

2012-12-9David Heinemeier Hansson (Ruby on Rails creator) explained Once you've tried developing a substantial application in Java or PHP or C# or whatever he says the difference in Rails will be readily apparent You gotta feel the hurt before you can appreciate the cure 11/16/2012 Ruby on Rails - Prashanth Mannar 38

Closures and Callbacks

So the next time you want your callback functions to have more information than just the event passed in consider using a closure to DRY things up Delirium Disclaimer As I was writing this post I noticed a lot of things I should change and fix in my original code (variable name consistencies CSS class name consistencies etc )

DRYing Out MVC

2013-11-11• Ruby doesn't have fully-general AOP but Rails provides some "predefined" pointcuts – Validations check or assert pre/post conditions at key points during model lifecycle – Controller filters check or assert pre/post conditions related to controller actions –

rails best practices where to place unobtrusive

2020-5-8do you write very generic functions (like a delete) with parameters (add extra attributes?) or do you write very specific functions (DRY?) I know in Rails 3 there is a standard set and everything is unobtrusive there But how to start in Rails 2 3 5? In short: what are the best practices for doing unobtrusive javascript in rails? 🙂

Latest from the Rocketship JetRockets Team Blog

Scaling Rails project still can be quite an interesting task We always want deployment to be as easy for developers as possible On the other hand we want to pay less for the infrastructure but be ready for unexpected significant increase of RPM

Unforgivable Ruby

If Ruby and Rails ship with solutions to problems that specific there's a good shot they have a solution to any simple problems you've come across too In particular if you're a relatively new programmer it will be pretty rare for you to come across a problem that hasn't already been encountered by literally thousands of programmers

Distributed Ruby and Rails

References • BooksArticles: • Distributed Programming with Ruby Mark Bates (Addison Wesley) • Enterprise Rails Dan Chak (O'Reilly) • Service-Oriented Design with Ruby and Rails Paul Dix (Addison Wesley) • RESTful Web Services RichardsonRuby (O'Reilly) • RESTful WEb Services Cookbook AllamarajuAmundsen (O'Reilly

Ruby vs Ruby On Rails

Ruby on Rails is a web application framework Ruby on Rails is based on the model view controller (MVC) architecture which means data is separated from a user interface and provides you with different views of data Ruby on Rails is used for server-side scripting and developing web applications Ruby on Rails now referred to as Rails

Can Ruby Survive Another 25 Years?

TechRadar marked the 25th anniversary of the Ruby programming language by writing there are still questions over whether it can survive another 25 years The popularity of the Ruby language has been bolstered for many years by the success of the Ruby on Rails (RoR) web application framework which

DevCamp

Workshop rails: how to add twitter bootstrap to a rails application integrate a basic html layout into a rails app how to create a rails view helper method rendering a list of posts via bdd in rails implement a refactor on the index action to follow rails best practices creating a

Ruby v1 9 3

2014-4-23VC 2013 supports C99 mathematics functions [ruby-core:57981] [Bug #9044] Wed Jan 29 14:00:15 2014 Nobuyoshi Nakada compar c (cmp_eq) fail if recursion [ruby-core:57736] [Bug #9003] thread c (rb_exec_recursive_paired_outer) new function which is combinnation of paired and outer variants Wed Jan 29 13:40:48 2014 Eric Hodel

Active Model Basics — Ruby on Rails Guides

2020-6-17Active Model BasicsThis guide should provide you with all you need to get started using model classes Active Model allows for Action Pack helpers to interact with plain Ruby objects Active Model also helps build custom ORMs for use outside of the Rails framework After reading this guide you will know: How an Active Record model behaves How Callbacks and validations work

Django 1 3 vs Rails 3: A not so final showdown (think)

2011-6-19So he tasked me to research the two leading frameworks in the Ruby and Python land - namely Ruby on Rails 3 and Django 1 3 I had a week to prepare some prototypes with both and create on overview for my boss I had some experience with Rails 2 a few years back and I have fairly decent knowledge of Ruby My Python is not as fluent (admittedly

Ruby on Rails: what the hack

If you are questioning Ruby's scalability you can take a look at famous companies that use Ruby like Shopify Shopify processes over 4 million requests every second Ruby on Rails is modular so it has really good scaling potential More on Ruby and Rails and it's scaling potential: Inside the Ruby and Rails

Unforgivable Ruby

If Ruby and Rails ship with solutions to problems that specific there's a good shot they have a solution to any simple problems you've come across too In particular if you're a relatively new programmer it will be pretty rare for you to come across a problem that hasn't already been encountered by literally thousands of programmers

Trailblazer: 03

2020-3-1Now that we've learned what operations do and how Trailblazer provides convenient macro steps to ease your life as a software engineer it's time to check out how to use operations contracts and cells in Rails Where's the EXAMPLE CODE? Setup In this example we will use Trailblazer operations with Reform form objects to validate and process incoming data

Tutorial: Decoupling Rails Components

2016-12-9The controllers do the work of parsing user requests data submissions cookies sessions etc and then ask the model to get the data The models are Ruby classes that talk to the database store and validate data perform the business logic and otherwise do the heavy lifting Views are what the user sees: HTML CSS XML Javascript JSON

Full

Trong bi viết ny mnh sẽ hướng dẫn cc bạn cch ci đặt Full-Text Search trong Ruby on Rails sử dụng Elasticsearch Giới thiệu về Elasticsearch Như trn đ mnh đ đề cập rằng Elasticsearch giống như một cơ sở dữ liệu dnh cho việc tm kiếm

How do I catch a java sql sqlexception within a Ruby

Ruby rescue all exceptions Rescue StandardError Not Exception Sometimes our Ruby programs throw errors which we don't have full control over such as network timeouts So we need to catch and handle The exception hierarchy Ruby's exception hierarchy is used to differentiate between different types of errors while giving you the ability to rescue from a group of errors without specifying

Ruby v1 9 3

2014-4-23VC 2013 supports C99 mathematics functions [ruby-core:57981] [Bug #9044] Wed Jan 29 14:00:15 2014 Nobuyoshi Nakada compar c (cmp_eq) fail if recursion [ruby-core:57736] [Bug #9003] thread c (rb_exec_recursive_paired_outer) new function which is combinnation of paired and outer variants Wed Jan 29 13:40:48 2014 Eric Hodel

Ruby On Rails: Interview Preparation Flashcards

Ruby on Rails 4 requires Ruby 1 9 3 or higher and prefers Ruby 2 0 The mass assignment mechanisms have once again changed The attr_accessible method in the model is gone and indeed mass assignment in the traditional way of feeding unfiltered params

RSpec test for update in another action

Rails 4 automatically generated RSpec test for deletion failscomma even when the feature works in development This is the automatically generated test for the destroy action in Rails 4 as part of the spec for vehicles_controller rb: describe DELETE destroy do it destroys the requested vehicle do vehicle = Vehicle create! valid_attributes

RubyMine 2019 2

RUBY-22809: Deprecate support for Rails 2 3 3 0 3 1 Keep support for 3 2+ Rails Code Insight: Feature: RUBY-24117: Update enum support for rails 6: Feature: RUBY-17685: Rails ActiveRecord Enums are not resolved or available in code completion: Feature: RUBY-23954: Rails enum support add the plural enum name to the model singleton: Feature

How to Programming with Code

The statement QuestionSelected = arc4random_uniform(5) can (and usually will) generate duplicate values before you've enumerated all of the possibilities That's the nature of randomness What you should do instead is create an array of the question numbers {0 1 2 3 4} and shuffle the array Then iterate through the shuffled array which will

Ruby On Rails: Interview Preparation Flashcards

Ruby on Rails 4 requires Ruby 1 9 3 or higher and prefers Ruby 2 0 The mass assignment mechanisms have once again changed The attr_accessible method in the model is gone and indeed mass assignment in the traditional way of feeding unfiltered params

How to view documentation of callbacks in IEx for

2020-7-18Aha! These are the little things which make me love Elixir so much :') So the next time you want to look up documentation about callbacks just use the b helper in IEx hope that saves you some time :) It even accepts a module and shows you all the callbacks that a module defines! P S: The curse of knowledge is real if I hadn't tried the naive way I wouldn't know that it was so easy to