Search Results for "what-is-the-data-science-topics"

Lessons

Your First Ruby Gem

Oct 24, 2022

In this episode, we will create our first Ruby Gem. It will be a very simplified gem that adds a method to the built-in Ruby Array class. The goal is to understand the core pieces of what is needed to create a gem that we can share with the community.

3

Sending Webhooks with Exponential Backoff

Jul 26, 2018 Pro

Sending Webhooks in Rails is easy, but what happens when the request fails? You'll need to implement retries and exponential backoff so you don't DoS their service

5

Install and Running Whisper.cpp from Ruby

Apr 03, 2024 Pro

Whisper.cpp is an open source C/C++ port of OpenAI Whisper that we can use with Ruby for transcribing our videos. We'll also look at how ActiveStorage runs executables like ffmpeg to see how it works behind the scenes just like with what we're building.

0

What Is A State Machine?

Aug 20, 2015

Learn what a state machine is and how it can help you keep track of everything

6

HTML Learning Path - What is HTML and Why Learn It

Nov 02, 2023

In this lesson, we will learn what HTML is and why we need to know about it.

0

Designing Database Models for a Password Manager

May 30, 2023 Pro

Our first step in building any application is designing what database models we will need to store our data.

2

Decorators From Scratch

Feb 22, 2017 Pro

Learn what the Decorator design pattern does and how to implement it from scratch

18

Symbols vs Strings

Feb 14, 2019

Ever wondered what the difference between Symbols and Strings were? Why would we use one over the other when most languages only have strings?

16

Open Source Vlog - Building A Calendar From Scratch

Jun 29, 2015

Spiking out code to figure out what we want so that we can do a great refactoring of simple_calendar

7

Webpack Bundle Analyzer

Jul 06, 2020 Pro

Webpack bundles can be confusing as to what actually ships in production. Using the bundle analyzer plugin, we can visualize and see exactly what libraries and files are taking up what space.

3

Open Source Vlog - Setting Up For The Future

Jun 27, 2015

Planning our future work on simple_calendar and what we're going to accomplish

0

Migrating From jQuery to Vanilla Javascript

May 23, 2017

Without jQuery in Rails 5.1, we explore what it takes to convert your traditional jQuery code into vanilla Javascript methods

48

HTML Learning Path - Anchor Elements

Nov 02, 2023

In this lesson, we will look at a key element in what make the web, the web. Hyperlinks.

0

Edit & Update Blog Post Actions

Apr 03, 2023

Implementing Edit and Update actions are straightforward now. We can reuse what we've learned with New and Create and reuse some of the logic to edit and update database records in Rails.

0

Turbo Confirm Modals with Confirmation Text in Rails

Feb 06, 2023 Pro

Turbo confirm modals typically ask a simple yes or no confirmation. What if you want to force the user to type in confirmation text to ensure they are paying attention? That's exactly what we'll build in this episode!

0

Advanced Flash Messages with Buttons & Actions in Rails

Sep 28, 2020 Pro

Flash messages are typically a simple string saying something succeeded or failed. What if we wanted to add buttons like you see in most applications? It's easier than you might think!

4

Testing External APIs with VCR

Oct 29, 2019 Pro

Testing integrations with external APIs in your Rails app can be hard. You don't know what requests are being made (or even the responses), so how can you properly mock them out? VCR to the rescue.

2

Rails Application Structure Explained

Apr 03, 2023

Now that we've created a new Rails app, let's take a look at the files generated and learn what they do

5

Flash Messages and Toasts with Hotwire & Turbo.js

Mar 15, 2021 Pro

Hotwire & Turbo.js are designed to make realtime updates to your page. So how do you notify the user with flash messages or toasts? That's what we're covering in this episode.

26

Writing Tests for Scheduled Blog Posts

Apr 03, 2023

Our scheduled blog posts adds some complexity to our app. In this lesson, we're going to write some tests to make sure that our code does what we want it to do.

0

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Forum Threads

Data Structure - Going back to the basic with Ruby

Hi Kelvin,Let me try and put my own perspective1 - Solid understanding of programming and computer science fundamentals. What do they want me to know?Cracking the coding interview book2 - Data Stru...

William Kennedy replied February 28, 2018 5:36pm • Solved

2

What is the difference between Python and Ruby

bragars replied March 26, 2020 2:44am

10

What are your goals for 2018?

Goals for 2018: - visit gorails.com and watch episodes in my spare time - build out my hobby project (comparison website) - get a better understanding of the basics - a minimum of 1000 hours of de...

robert replied December 27, 2017 10:00pm

6

How do I find a records based on contents of a has_many :through join?

I think I finally figured it out. Took long enough but I figured I'd share it. ``` class Student < ApplicationRecord has_many :enrollments has_many :klasses, through: :enrollments scope...

Peter Marcano replied March 12, 2019 7:43pm • Solved

9

Rails csv import with associations

![thumbs up](http://i.imgur.com/F0sAGUr.gif)

Chris Oliver replied November 11, 2016 10:27pm • Solved

9

What is the best way to house view logic?

Thanks Jacob, I'm definitely leaning to putting into the ViewModel to keep all Business/View logic in a single entity, was curious what the Rails community's thoughts were. Appreciate the responses!

Mark Kadlec replied February 9, 2018 7:32pm

5

How do I Export a CSV file where it includes all the nested attributes?

You're a genius! Thank you so much.

Steve replied August 27, 2017 3:32pm • Solved

19

Deck Builder App. How do I query only decks you can make with the cards in your inventory?

Thanks Francisco! I corrected the typo.

Matias Fernandez replied March 27, 2017 3:55pm • Solved

8

How do I switch from 1 database to 1 database per client?

I believe you should consider to read this before migrate to the multi tenant way. https://influitive.io/our-multi-tenancy-journey-with-postgres-schemas-and-apartment-6ecda151a21f

Ary Rabelo replied November 29, 2018 4:18pm • Solved

7

How do I calculate a computed value in a model when showing or indexing over that model in its controller?

After sleeping on it, I believe the best way (and the way that requires the fewest queries to Cloud Firestore) is to just download the whole Firestore DB and update from that object every 10 or so ...

Jordan T-H replied May 8, 2020 2:14pm • Solved

2

Advanced Caching with User Permissions and Authorization Discussion

Chris Oliver replied February 12, 2018 8:40pm

26

Chartkick and impressionist gem render not working

This is a personal project and not a paid gig. So I'll give it a shot, if not I'll think of something else.

Ben John Bagley replied December 9, 2017 10:08pm

33

Vue.js Components in Rails Views Discussion

Could you post how to migrate for Rails 7 + Esbuild? I tried but I got Failed to mount app: mount target selector "app" returned null.

leoplct replied July 6, 2022 7:44pm

28

Calling function from handling click event issue

Thank you, Chris, it is working! And thank you for pointing me that it is necessary to find out what is JS scopes, which appeared to be very useful information. :)

Michael Derzhavets replied June 13, 2016 8:34pm • Solved

9

Few Big Models or Many Smaller Namspaced models?

... I never really thought about the fact that my controllers don't have to map directly to models :/  That makes perfect sense. I suppose I will do a generic Page controller, then site(yelp, ...

Rich Smith replied May 24, 2018 2:37pm • Solved

7

How to Migrate from Heroku to Hatchbox.io Discussion

I always get the error `pg_restore: error: could not execute query: ERROR: cannot drop schema public because other objects depend on it`. It happens even if I clear all data from my hatchbox DB (u...

Matthias Orgler replied March 18, 2021 12:27pm

10

How to use Bootstrap with Webpack & Rails Discussion

Also going to add that I had issues with the tooltips triggering after I left the page and came back so to help with any conflicts with Turbolinks I changed addEventLstener to: document.addEventL...

bradley replied July 23, 2022 4:07pm

51

Setup MacOS 10.9 Mavericks Discussion

if someone has errors with db:rake not working, here is the solution:http://stackoverflow.com/qu...

A.S. replied February 5, 2017 2:01pm

86

Using Webhooks with Stripe Discussion

Hi, Are you sure that the endpoint in stripe contains /webhooks/stripe at the end of the URL? This fixed it for me.

Adrien Nhem replied August 5, 2019 1:38pm

47

Preferences & Settings with ActiveRecord::Store Discussion

I followed this episode and I tried doing this ``` typed_store :meta, coder: ActiveRecord::TypedStore::IdentityCoder do |s| s.string :requested_topics s.text :instructions end ``` s.s...

sthapit replied August 16, 2020 6:42pm

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