DEV Community: Zipporah

Had issues with my Database

Zipporah — Thu, 08 Dec 2022 17:44:37 +0000

Today I had a problem with my rails sample data appearing in MSM sign in. The real issue was that I was not adding rails db:migrate to the terminal after adding tables.Also, I was not adding the:

rails generate migration AddImageToMovies Image:string

rails db:migrate

this adds to the tables in your schema which will help the rails sample_data to appear in your app, because it has somewhere to go to.

Add to application.html.erb

Zipporah — Tue, 06 Dec 2022 17:13:14 +0000

Adding your nav bar to this file ensures that all of this is accessible to user from different pages!

Easy way to create tables in database

Zipporah — Tue, 06 Dec 2022 16:16:10 +0000

rails db:rollback in the terminal drops the most recent table in database.

Discard changes in Git.Then type rails generate draft:resource movie title:string description:text director_id:integer

this line in the terminal creates the routes for you, as well as the specific controller and in views as well!

At the end of that, ensure that you type rails db:migrate in the terminal so that is can be properly placed. If not then an error message saying "Migrations pending" will appear.

Migration to create tables in database for MSM Sign in

Zipporah — Tue, 06 Dec 2022 02:25:32 +0000

The line of code to write in terminal for rails is
rails generate model movie title:string description:text director_id:integer

next enter rails db:migrate which creates the data table in the database for you to add to later.This is important to know because you cannot create tables of information in the rails/db url page.

Date Ruby Chapter 6

Zipporah — Mon, 17 Oct 2022 18:48:19 +0000

In this ruby chapter I realized alot of my rails grades were failing because of simple errors such as a missing space and not putting print in front of the line of code.

Constants In Ruby

Zipporah — Wed, 05 Oct 2022 16:12:33 +0000

Today I learned that variables are always formatted in the 'snake case' like this :my_first_variable.

I also learned that constants are usually connected to a string for example: MY_FIRST_CONSTANT = 10. And once constants are assigned, they cannot be changed, meaning this constant is going to always be 10.

Also, I learned that classes and constants are similar.Classes are the way Ruby organizes."Objects are generally created by instantiating classes using the .new method".
For example,it looks like this:

Define the class

class Calculator
#...
end