Today’s Topics

• The woes of deployment. What issues did you encounter? What did you try that worked or did not work?
• Django Recipes codebase
• Using the Django shell

⚡ Lightning Talks

• Lookup expressions with .filter()
• Lookups that span relationships
• Complex lookups with Q
• Lookups with Related objects
• Aggregate & Annotate

🎯 Project: Continue Habit Tracker

You should aim for Habit Tracker to be done on Monday. Implement as much as you can, and we will check in with how far everyone has gotten. There are examples for a lot of what you need to do in the Django Recipes codebase but you will have to adapt them to your Habit Tracker use cases.

📖 Read | 📺 Watch | 🎧 Listen

This section is material to prep for our next topic, building APIs.

• RESTful APIs – read up through the “Standard Methods” subsection of the section on “Methods”. You can read more if you want to but it gets pretty deep.
• Safia Abdullah, You and Me Learn All About HTTP

🔖 Resources

• PrettyPrinted Video: Basics of Django Aggregations
• Pretty Printed Video: How to Use Annotate in Django
• URLs in Django
• Django QuerySets
• Django Model Managers
• Django docs: combining Aggregations with other QuerySets
• SQL Basics: Learn x in y minutes -> this may be helpful to skim for familiarity with SQL when you run into it. You do not need to write SQL because the Django ORM does it for you, and it does it well. But most developers can drop into SQL if they need to work with the database directly.
• ERD sketch from class

Topics

• Return to JS!
• Intro to React
  • Why does React exist? What problem does it solve?
  • How is it different from vanilla JS?

🛠️ Setup

Make sure you have the following set up in your local environment:

• Node & npm
• create-react-app
• VS Code extension for JSX and Standard.js

📖 Read | 📺 Watch | 🎧 Listen

• React docs
• Kent C. Dodds, The Introduction to React You’ve Been Missing

🎯 Do

Beginner’s Guide to React Tutorial. This will show you the most modern way to build React apps. This project will be in Git, but you will use a repository you make.

If you finish this and want to keep going, try one of these other tutorials:

• The Beginner’s Guide to React - video-driven, very complete
• The official React tutorial - classic, official. Uses class-based components, which are a bit older, but still widely used
• Dave Ceddia’s React tutorial - very long, very comprehensive

🦉 Code from class

• The most minimalist React app ever

Topics

• deploying Django applications to Heroku
• using PostgreSQL

🎯 Project: Habit Tracker

You’ll be working on Habit Tracker this week.

It’s important to read the project requirements thoroughly and start to think about how you would do this project.

First steps: generate the project skeleton, get it deployed to Heroku, and design your models. Make sure to create a diagram showing model fields and relationships. Talk through with each other how you are thinking about this.

By Thursday:

• Your application should be deployed to Heroku
• Your models should be done
• You should be able to create habits and associated daily records in the django shell (I recommend using shell_plus)

🔖 Resources

• Example code: Django Recipes
• Checklist for deploying to Heroku
• django-extensions shell_plus
• Momentum Django Project Template

📖 Read | 📺 Watch | 🎧 Listen

• Full Stack Python: ORMs
• Class-Responsibility-Collaborator Model (CRC)
• Entity Relationship Diagrams (ERD), from Lucid Chart

⚡ Lightning Talk Topics

You should research these starting in the Django docs (linked below). For this talk, explain your topic and show us a code example. You may find a code example of each of these in the Django Recipes codebase.

Basic outline of your talk (you’re welcome to vary this):

• Define your topic. What is it?
• How does this relate to other things you have learned before? (in other words, can you put it in context for everyone? How does this fit in?)
• Why do we care about this topic? When is it useful? Do you see it as being useful in this week’s project or another project you’ve done in the past?
• How does it work?
  • Explain it conceptually.
  • Show us some code. The code example should demonstrate how to use it.
• Any thoughts you have about it that you want to share? Tell us what you think.

On Thursday, come prepared to talk for 5-7 minutes on your topic. If there are 2 people on your topic, come prepared to talk for 10-12 minutes.

• Lookup expressions with .filter() - Tori
• Lookups that span relationships - Tristan
• Complex lookups with Q - Dawud
• Queries with Related objects - Mike
• Aggregate & Annotate - Ben and Grant

▶️ Here is your Phase 3 classroom Zoom link.

Today’s Topics

• Intro to Phase 3!
• Welcome new folks
• Should you do front-end or back-end in Phase 3?
• Note-taking as a developer & Markdown
• Setting goals for Phase 3

🤨 What does “Advanced” Even Mean?

⚠️ And even for experienced engineers, their experience is limited to certain areas, and completely dependent on having had opportunities to develop that experience. What you don’t know will always outweigh what you do as long as you work in a field that moves as fast as tech does.

If that seems discouraging, see this great blog post by one of the most well-respected and influential developers out there right now.

Dan Abramov, Things I Don’t Know

📝 TODO for everyone

• Learn markdown
• Pick a note-taking application that will let you take notes while you read and work. It’s important that it can properly format code blocks. Here are some options (but don’t spend more than 10 minutes making this choice).
  • VS Code (with this option you could create a simple git repo with markdown files)
  • BoostNote
  • Notion
  • Evernote

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🦊 SO YOU WANT TO BE A FRONT-END DEV

This section includes what you need to do today if you are in the front-end group

📖 Read | 📺 Watch | 🎧 Listen

These are required readings, videos, and/or podcasts. Read, watch, or listen, take notes, and come prepared to discuss.

• 📖 Modern JavaScript Explained for Dinosaurs
• 📖 State of JS 2020 Survey Results -> Read the Introduction and Features sections; the rest you can skim, although it’s all pretty interesting.
• 📺 ES6 tutorial for beginners

🎯 Write Code

You do not need to turn in anything.

Pick 1-3 exercises from this list on Exercism.io JavaScript Track.

🔖 This might help: MDN: A Re-Introduction to JS

• Isogram
• Scrabble Score
• ETL
• Simple Cipher
• Hamming
• Gigasecond
• Grade School

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🐻 SO YOU WANT TO BE A BACK-END DEV

This section includes what you need to do today if you are in the back-end group.

📖 Read | 📺 Watch | 🎧 Listen

These are required readings, videos, and/or podcasts. Read, watch, or listen, take notes, and come prepared to discuss.

• 📖 Full Stack Python: Databases
• 📖 Full Stack Python: Deployment
• 📖 Deploying Django Apps to Heroku
• 🎧 Deploying and Running Django Web Apps in 2021
• 📖 Python Debugging with Pdb *optional
• 📺 Damilare Onajole, Debugging Python *optional

🎯 Write Code

You do not need to turn in anything.

• Revisit an issue from a recent Django project that you got stuck on and practice using the Python debugger to dig into it.

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🔖 Resources for Everyone

• Rukia Sheikh-Mohamed, 5 Steps to Getting Unstuck
• Katrina Owen, How to Fail Without Being a Loser
• Tom Stuart, The Most Common Problem In Software Development And How To Fix It
• Markdown Guide
• Markdown Tutorial
• VLC An open source video player that gives you lots more control than YouTube does (like more playback speed options).

📅 Today’s topics

• Python Classes
  • Instantiating an Object
  • Attributes
  • Instance Methods
  • “Magic” Methods
• Inheritance

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layout: post title: 🐍 OO Programming in Python 🐍 tags: phase-2 python —

📅 Today’s topics

• Intro to Django

🎯 Project

Django Girls Tutorial

🔖 Resources

• Pretty Printed Django Videos
• 1-10 are the ones that will be most relevant next week

📹 Code, Slides, and Video from Class

• Notes - Tour of a Django App
• Code
• Morning Class Recording

Access Passcode: 4V8%YW?^