15 Simple Steps to Creating a CRUD Web App with Ruby on RailsDanielle JasperBlockedUnblockFollowFollowingMay 1If you are fairly new to Ruby on Rails (or forgot how to use it) and need a quick guide to creating a CRUD (create, read, update, destroy) web application, then you’ve come to the right place!Below I have written some simple steps to creating a very simple application, linked to some documentation or a tutorial for each step, and included an example of what you might write for each step.
Here’s a nice, simple tutorial that gives some more context and explanation and walks you through these steps.
This guide is also fairly easy to follow, much longer, and more detailed.
Create a new apprails new pets-app2.
Launch a server and go to http://localhost:3000 in your browser to view your apprails s3.
Create modelsrails g model owner first_name last_name age:integer emailrails g model pet name species owner_id:integer owner:belongs_to4.
Set up associationsclass Owner < ApplicationRecord has_many :petsend5.
Add validationsclass Owner < ApplicationRecord has_many :pets validates :name, presence: trueend6.
Run migrationsrails db:migrate7.
Check your schema by looking at the db/schema.
Seed your databaseOwner.
create!(first_name:"Dan", last_name:"Weirdo", age: 18, email:"realemail@cool.
create!(name:"Snowball", species:"dog", owner_id:1)9.
Test validationsowner = Owner.
Create controllers and viewsrails g controller owners index show new create edit update destroyrails g controller pets index show new create edit update destroy12.
Create routes using resources or manual routesresources :petsresources :owners13.
Make sure your routes are working correctly by running your server(rails s) and looking at each path that you created (i.
Add/edit controller actionsHint: scroll to the bottom for an example of standard controller actions15.
Add/edit view filesHint: “find on page” “new.
to see examplesAnother hint: the form_for helperThat’s it!.Make sure you test your code as you go, and commit often.