Search Results for "the-lake-park-t-ng-tr-ng-s-ng-xanh-c-a-kdt-nam-hoa-xuan"

Lessons

The Behaviors Of Super

Oct 13, 2023 Pro

In this lesson, we will look at the various ways we can use the super keyword in Ruby in regard to forwarding method arguments to the equivalent method in a parent class.

2

The difference between Link_to vs Button_to in Ruby on Rails

May 29, 2023

A lot of developers use link_to and button_to interchangeably. In this lesson, we'll explore when you should use link_to and when to use button_to and the differences between them.

1

The MVC Pattern Explained

Apr 04, 2023

Rails uses the MVC Pattern. This isn't as scary as it sounds. It's basically a design architecture that gives you 3 primary buckets to help you organize your code.

5

The Ruby Subscript Operator

Jan 09, 2023 Pro

Rails uses the Ruby subscript operator to implement versioning with ActiveRecord Migrations. We'll learn how this works and implement it from scratch to see how it all ties together

6

The Rails db:system:change command

Apr 03, 2019

Changing the database adapter for a Rails app has always been an annoying, manual change to make. Rails 6.0 introduces the "rails db:system:change" command to make this easier using all the built-in generators for database.yml and more.

8

The State_Machine Gem

Aug 20, 2015

Learn how to use the state_machine gem to keep track of objects in your Rails apps

10

The Params Hash

Jul 02, 2014

A glimpse into the "magic" behind the params hash and the various ways it gets populated

5

Enhancing the Rails Scaffold Generator with hook_for`

Mar 11, 2024 Pro

Generators in Rails are in namespaces which allows us to create local generators that use the same name as others. We can use this technique to enhance the Rails scaffold generator by calling it with `hook_for`

1

Deploying the Web Scraper Rails app to Production & Setting Up Cron Jobs

Mar 04, 2024 Pro

The next step is deploying our web scraper to production and setting up our cron jobs. We'll deploy our Rails app to a server using Hatchbox.io and configure cron jobs to run our scraping tasks on an interval.

4

Improving the URL Shortener Design

Sep 25, 2023 Pro

It's time we start cleaning up the design and UI for a better experience with our URL shortener.

4

Creating The Link Model

Sep 19, 2023 Pro

First things first, we need a Link model to store our

0

Styling The Password Manager with TailwindCSS

Jun 08, 2023 Pro

We're ready to spruce up our Password Manager design with a little TailwindCSS.

4

Improving the Rails Route Generator

Oct 20, 2020 Pro

The Rails generator helpers have always been a little lacking in flexibility. While building the Madmin gem, I ran into an issue with the route generator and decided to take the extra time to contribute back to Rails.

5

Improving the Rails Conductor for Inbound Emails & ActionMailbox

Jul 14, 2020 Pro

Contribute to Rails by discovering something you could improve and learning how to add features to Rails

1

Using the Trix Editor plus File Upload Attachments

Oct 03, 2017

Learn how to use the Trix editor for editing wysiwyg content and upload attachments like images using Javascript and Shrine

53

Decorators with the Draper Gem

Feb 27, 2017

Implement the decorator pattern with the Draper gem in your Rails application

4

GoRails Performance - The Techniques I Use

Apr 11, 2016

Learn how I design GoRails for speed and performance on all layers of the stack

33

Refactoring with the Null Object Pattern

Apr 24, 2015 Pro

Refactor and simplify your associations and views using Null Objects that let you remove conditionals and have more robust code

23

Multitenancy with the Apartment gem

Mar 19, 2015

Learn how to separate your application data into different accounts or companies

81

Adding Sales to the black_friday gem

Dec 02, 2024 Pro

Calculating dates is helpful, but what if we took the black_friday gem a step further by adding sales?

0

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Forum Threads

The Behaviors Of Super Discussion

Using `method(:method_name)` and `method(:method_name).super_method` can be incredibly handy for debugging. 🔥 A **super**power if you will. 😜

Ann Cascarano replied October 14, 2023 1:53am

The Unusual Error when rendering the main page at start

Hi, I am having this unusual error where I have created the view, models, and controllers for a page with home and about views. I have also set the routes to point to the pages#home, but the view ...

Asim Mehmood Khan posted September 19, 2023 6:05pm

The difference between Link_to vs Button_to in Ruby on Rails Discussion

Another trick is to use `formaction` for having multiple buttons in the same form without using any hidden forms. For example: ``` <%= form_with model: @blog_post do [form| %> <%= fo...

Ajay Guthikonda posted June 1, 2023 4:53pm

The MVC Pattern Explained Discussion

Great explanation about MVC!

Eric Halverson replied October 12, 2023 12:17am

The Ruby Subscript Operator Discussion

Hi, how to change the GitHub layout similar to yours? I love it

Homer Gregory replied June 4, 2025 7:14am

the deleting user is blocked if they have subscribed to forum

We have used the simple_discussion gem in our rails application but the error is caused when the user is destroyed. ``` PG::ForeignKeyViolation: ERROR: update or delete on table "users" violates fo...

The Rails db:system:change command Discussion

Great to change the database when we create default sqlite. that maintains the previous gem version ... generates confusion when looking for errors.

Jesus replied December 9, 2021 12:54am

The Difference Between :symbol and symbol: Discussion

The State_Machine Gem Discussion

Awesome! Chris, this is very useful. Thank you.

Someone replied November 27, 2017 7:16am

The Params Hash | GoRails

Nice video - thanks. Request for future episode: part 2 on params, explaining stuff like:params.require(:blog).permit(:title, :body)How that all works, what Rails does when required params are miss...

Chris Oliver replied May 24, 2017 1:24am

The Params Hash Discussion

This was awesome. I didn't know how the params hash worked, and this is so helpful. I hope you are going to do more like this one. This has not been covered in any beginner tutorials I've taken.

Chase Story replied July 12, 2019 3:13pm

The best way to use permissions in serializers

I want to show the attrib, using cancancan in serializer model, it is possible ? what is the good practices for that, thanks !

Jose Aguirre posted February 11, 2018 4:03pm

remove the class="simple-form"

Gems / Libraries

how to remove the class="simple-form" from a form created using the gem?

João M Cortat replied July 2, 2025 8:05pm

Watched the video- One Time payments with Pay and Stripe- (embedded), Form never loads....

HAS anyone been able to get STRIPE EMBEDDED PAYMENTS working? I followed Collin's course to the T, but when I get to the point where the stripe form is supposed to be inserted into my DIV on the Ap...

Jon Roock replied May 20, 2024 2:47pm

Enhancing the Rails Scaffold Generator with hook_for` Discussion

Very helpful and cool ,thanks

Gary Leydon posted March 14, 2024 3:19pm

Deploying the Web Scraper Rails app to Production & Setting Up Cron Jobs Discussion

I wish the linking of the database was a bit more clear. My app was pulling in the credential in the database.yml file instead of simply linking via the DATABASE_URL environment variable. I had to ...

Count the number of pages in a pdf

Hello! I am trying to count the number of pages in a PDF for a print service using PDF-reader (https://github.com/yob/pdf-reader). Here's what I have so far but, I only get a hash of {"identified...

Nick Seferos posted October 18, 2023 1:21am

Improving the URL Shortener Design Discussion

Hello Chris and ROR developers, Why I need to add **kwargs and what is doing ?? def favicon_image_tag(domain, **kwargs) image_tag google_favicon_url(domain), **kwargs end

cjilbert504 replied December 5, 2023 6:11pm

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