Rails Scaffolding Use Example _ruby topic

Scaffolding is a very easy way to rails, some simple additions and deletions to check the scaffolding can be achieved, save us unnecessary trouble, so how to use rails scaffolding, today to explain.

. Specify port Start Rails project

Copy Code code as follows:

Ruby Script/server Webrick-p 3000

0. Create a project

Copy Code code as follows:

Rials Demoshop

1. Create products with scaffolding (Control model display data)

Copy Code code as follows:

Script/generate Scaffold Product title:string description:text image_url:string

2. If the creation is wrong destroy these(Destroy destroys scaffold scaffold pronduct Product object)

Copy Code code as follows:

Script/destroy Scaffold Pronduct

3. To create a SQLite table(Must have the previous step to create)

Copy Code code as follows:

Rake Db:migrate

4. Use the SQLite command to view current project migrate current version

Copy Code code as follows:

Sqlite3 db/development.sqlite3 "Select version from Schema_migrations"

5. View the routing situation

Copy Code code as follows:

Rake routes

6. Database Migration Add one field scaffold

Copy Code code as follows:

Script/generate Migration Add_price_to_product Price:decimal

And then perform the 3 steps
7. Debugging

Copy Code code as follows:

Script/console

8. Create only one action for a controller

Copy Code code as follows:

Ruby Script/generate Controller Store Index