Skills Assignment SA3: Model Basics

Required Demos-n-Deets demos:

• Model Classes
• Tables (This demo is from the previous Webpage Basics section and serves as background for the Index Pages demo.)
• Index Pages
• Show Pages

Optional demos (for now): Everything else in the “Model Basics” section of the Demos-n-Deets.

Active Reading

Follow the general instructions for active reading for the above required demos.

What to submit:

• For the Model Classes demo:
  • ar3-01: A screenshot that shows the result of the final Car.all command run in the Rails console.
• For the Index Pages demo:
  • ar3-02: A screenshot that shows the index page displayed in the browser.
• For the Show Pages demo: Three screenshots:
  • ar3-03: one that shows the show page for the record with ID of 3 displayed in the browser,
  • ar3-04: one that shows the index page displayed in the browser, now with links to the show pages, and
  • ar3-05: one that shows the contents of the index.html.erb view file (especially make sure that the link_to helper calls are visible).

Important! All screenshots must include your computer’s desktop in the background so that it is recognizable as your desktop. Also, all screenshots of web pages must display the entire URL of the page in the browser’s location bar. (Watch out, as some browsers like to hide parts of the URL unless you click on it.)

Practice Test

Before proceeding, be sure to read the general description and instructions for the practice tests.

Start with the base project on the main branch of this repo: https://github.com/memphis-cs/practice-apps-2022-08fall

Task to perform:

You must implement a Rails model class (including migration) as per this class diagram:

You must seed the database (using the seeds.rb script) with the following Book records:

Title	Author	Year	Publisher
Jaws	Peter Benchley	1974	Doubleday
Murder on the Orient Express	Agatha Christie	1934	Collins Crime Club
Slaughterhouse-Five	Kurt Vonnegut	1969	Delacorte
Fahrenheit 451	Ray Bradbury	1953	Ballantine Books
Death on the Nile	Agatha Christie	1937	Collins Crime Club

You must create an index page that displays all the Book records stored in the database, like this:

Each “Show” link on the index page must link to a show page for the record, and the show pages must look like this:

What to submit:

• pt3-01: A screenshot of the index page, with the five books in the table.
• pt3-02: A screenshot of the show page for Fahrenheit 451.
• pt3-03: A screenshot of the index.html.erb file.

Important! All screenshots must include your computer’s desktop in the background so that it is recognizable as your desktop. Also, all screenshots of web pages must display the entire URL of the page in the browser’s location bar. (Watch out, as some browsers like to hide parts of the URL unless you click on it.)

Explanation Video

Before proceeding, be sure to read the general instructions for the explanation videos.

Important! For this explanation video, you must follow the task plan and reflection instructions.

Start with the base project on the main branch of this repo: https://github.com/memphis-cs/practice-apps-2022-08fall

The video can begin after you have cloned, initialized, and run the base app.

Task to perform:

First, you must imagine a model class of your own invention. Be creative, but also make sure that whatever you come up with makes sense. Additionally, your model class must have the following:

• At least one string attribute.
• At least one integer attribute.
• At least three attributes in total (not including the Rails-provided id and timestamps).

Given this model class, you must implement the following:

• Rails model class, including migration.
• Seed data that include at least valid 5 records.
• An index page that displays all the records of your model class stored in the database. The records must be displayed in a table that includes column labels. You need not display all the attribute values for each record, but you should display at least two of the attribute values.
• A show page that displays all the attribute values for a single record.
• The index page must include links from each row in the table to the corresponding show page.

Important! Be sure to run and test the things you build in your video (e.g., as per the “Test It!” demo steps).