🗓️ Today’s Topics

• Finishing up with code snippets and flashcards
• Talk briefly about technical presentations
• Q&A about Phase 3

🎯 Django Duplex Project due Thursday @ 2:00pm

Thursday morning we will not have class. You should use that time to finish work on your project. Instructors will be available during regular class hours to help out.

🤩 End-of-Phase Interview

For this phase we will ask you to meet with an instructor one-on-one to talk about your code instead of presenting to an audience. We’ll ask you a few questions about Python, Django and the project you have been working on.

Technical Questions

These are literally the questions we’re going to ask you:

1. Walk us through what happens in Django when someone types a url like www.djangoapp.com/card/2/edit into a browser’s address bar.
2. Open the django shell and select an object from your database, then get its related objects (we’ll ask you different specifics here depending on what your models are).
3. Show me a template that uses conditional rendering and explain how that works.

Interviews take place on Thursday during our normal class time, 2:00-3:30. Please come to the classroom and we’ll use breakout rooms for our separate meetings.

Honey Badgers and Pine Martens meet with Amy

• 2:00 Sara
• 2:15 Dee
• 2:30 Quinten
• 2:45 Robert
• 3:00 Greg
• 3:15 Emily

Wolverines and Sea Otters meet with Jeanette

• 2:00 Brian
• 2:15 Wendy
• 2:30 Shaune
• 2:45 Roan
• 3:00 Logan

🔖 Resources

Forms

• Django Form Reference
• Rendering Form Fields Manually
• Django Docs: overriding model form fields
• Crispy Forms

Queries

• Field lookups
• Django search on multiple fields with Q objects

Debugging Tools

• Python debugger commands
• Django Debug Toolbar docs

🗓️ Today’s topics

• Check in with progress on code snippets and flashcards
• Why and how to incorporate JavaScript into your Django application

🎯 Django Duplex Project

Habit Tracker or Code Snippets…continued.

Resources

• Django and AJAX

• Fetching Data with Ajax and Django -> This article is really helpful. There are really good code examples. Here are the most important bits:

  By including the ‘X-Requested-With’ header set to ‘XMLHttpRequest’, the view will be able to check if the request is AJAX or not.

    request.headers.get('x-requested-with') == 'XMLHttpRequest'
  

• Django docs on the above
• Unintrusive JS with Django

⭐ EXTRA/TMI

• jQuery -> This is not something I recommend using right now, but I include it here because a lot of the resources you will encounter about using JavaScript in a web browser will refer to it (like the article on unintrusive js listed immediately above). It is not as popular as it once was, and it is incompatible with a framework like React. But you will sometimes come across it, and you may end up working with it at your job, so you might as well recognize it when you see it and look it up if you ever need it.

🦉 Code

• Example Django Music

🗓️ Today’s Topics

• Progress report on Code Snippets and Flashcards
• Git collaboration review & questions
• Django review & questions
• Implementing search
• Foreign key recursive relationships

🎯 Project: Django Duplex

Keep on with Django Duplex. Today you should have models that you can use in the shell and in your application. Your team should also have a list of tasks you need to do, and a plan for when you will do them.

🔖 Resources

• Django Views the Right Way
• Python debugger commands
• Django Debug Toolbar docs
• Django Model Field Reference: Foreign Key
• Django ORM Cookbook: How to include a Self-Referencing ForeignKey in a Model
• LearnDjango: SearchTutorial

Today we’ll begin our first real team project, with a shared repo. This will require more planning, a lot of communication and coordination, and adding on some new git skills that will let us collaborate.

🎯 Project: Django Duplex

You will work in a shared repo for the first time and turn in one application that your team will build together. How you share the work is up to you to determine.

You have two options to choose from for this assignment. Your team should meet to discuss and decide today which one you will do. Then, the very first thing you should do is decide what models you will need and what attributes and relationships they should have.

This assignment is due next Thursday at the end of the Phase.

Link to assignment

🦘 Teams

For this project, the first team member listed should accept the assignment, then the other team members can accept the assignment and select the repo for their team.

teams = {
    'team_sea_otter': ['Brian', 'Wendy', 'Shaune'],
    'team_honey_badger': ['Sara', 'Quinten', 'Dee'],
    'team_pine_marten': ['Greg', 'Emily', 'Robert'],
    'team_wolverine': ['Roan', 'Logan']
}

🔖 Resources

• GitHub Collaboration Docs
• Git in VS Code -> I use git on the command line and that’s how I teach people to use it. But you might like using the integration in VS Code. This is a good place to start, but there are many other extensions that you could use as well.
• Pair Programming Guide -> This template for a pairing session is practical and actionable. There are other resources on this site worth a look as well.
• Django cheat sheet -> This is the same one I posted earlier in the week. If you didn’t see it then, you might be glad to see it now.
• makeareadme.com
• A great example of a README and a cool project
• CRC model -> The Class-Responsibility-Collaborator model helps you to reason about how you should design your models.

🗓️ Today’s Topics

• Many-to-many model relationships & queries
• Slugs

✅ Questions to Check Your Understanding

• If you want to show one particular book in the browser, how would that work in the urls and the views?
• How do forms work in Django? You should be able to talk about form objects and how forms are handled in the views.
• Can you create new objects, find objects, and find related objects in the Django shell?
• How does Django know if a user is logged in?
• How can you implement books with multiple categories?

🎯 Project: FreeShelf Wrap Up

Your FreeShelf project is due on Thursday morning.

Resources

• Tips for using Django’s Many-to-Many Field
• Django Docs: Related Objects Reference
• Creating Interactive Views in Django - great post really breaking down views
• Django Slug Tutorial
• Django Docs: Built-in Template Tags and Filters

🦉 Code & Notes

• Music app with auth and more models
• Many-to-Many Diagram