Karmen Blake

DHH talking about making money; more business oriented. He does talk a little about software development in his question/answer session. Overall very interesting.

http://christophemaximin.com/articles/2008/04/21/the-secret-to-making-money-online-by-my-hero-dhh

Editing data lecture

April 21st, 2008 |

Concepts

Update attributes (Chapter 6)
Partials (Chapter 10)
More RESTful routes (Chapter 4)

Download app

CIS 284 - Assignment 1

April 17th, 2008 |

CIS 284
Assignment 1
Due Sunday, April 27th by midnight

To turn in:

zip up rails app named lastname_app, thus, lastname_app.zip
email and attach zipped file (do not rename zip, send as is) to kblake.scc@gmail.com
subject line: full name, cis 284, assignment name

To do:

You’ll be creating a KraigsList with postings
Each posting has these characteristics
- title (required)
- price (required, validate for numeric)
- email (required, validate format)
- description (required)
- location (optional)
Allow one to create a posting
View all postings (order by highest price)
- Display postings count
- Extra credit: provide hyperlinks to view ordered by lowest or highest price)
Editing of postings (in a later assignment, we’ll allow users to edit their own posts only)
Delete a posting (make sure there is a javascript confirmation before deleting)
Use the flash notices to display what “action” just occurred
Use a layout to contain the views

Rails Application: creating new stories and validation

April 14th, 2008 |

Concepts:

New/Create RESTful routes (Chapter 4)
Forms and form helpers (Chapter 4 and 11)
Validations (Chapter 8)

Download Latest Rails App

Starting a Rails App

April 11th, 2008 |

Concepts

ActiveRecord Basics
Migration Basics
Creating a controller and a view

Download Rails App

Download
Unzip
Navigate into folder and run rake db:migrate
ruby script/server

Tutorials and speed of the course

April 10th, 2008 |

Please do not get sidetracked by tutorials you find on the web. Use them as a reference for what I want you to do. Instead follow my instructor blog (and notes) for direction. Currently, I only need you to know how to create a rails app, write some erb, and link a few pages together as shown in last week’s lecture. The scaffold was something I was demonstrating to show how quickly you can get a database-driven app up and going. You can use the scaffolded code as a reference. You are not yet expected to know how the scaffolded code is supposed to work. Over the next couple of weeks we are going to build a database driven app from scratch so that I can address some very important concepts (like ActiveRecord and routing) along the way.

REST and routes

April 9th, 2008 |

Reference: Chapter 4 (The Rails Way)
In Rails, by adding map.resources :stories to config/routes.rb, you get 7 predefined routes:

stories GET /stories {:controller=>”stories”, :action=>”index”}
POST /stories {:controller=>”stories”, :action=>”create”}
new_story GET /stories/new {:controller=>”stories”, :action=>”new”}
edit_story GET /stories/:id/edit {:controller=>”stories”, :action=>”edit”}
story GET /stories/:id {:controller=>”stories”, :action=>”show”}
PUT /stories/:id {:controller=>”stories”, :action=>”update”}
DELETE /stories/:id {:controller=>”stories”, :action=>”destroy”}

Slowly but surely we are going to build an app from the ground up and use all of these RESTful routes. Its very important to understand what each of these do and how to incorporate them into your application. These routes control how we setup our controller, actions, links, and forms. It is amazing how much is conventionalized around one configuration line map.resources :stories

POST is a CREATE
GET is a READ
PUT is an UPDATE
DELETE is a DELETE

New Rails App

April 8th, 2008 |

Did everyone get a Rails app up and going? I’d like to start in on ActiveRecord and then how we apply to a web app. Does that sound cool?

Working with databases

April 6th, 2008 |

References

Read from: “The Rails Way” – Chapter 6
Active Record Presentation
Migrations Presentation (ignore mysql at beginning)

Objectives

Configure Rails to work with a database (database.yml)
create table (migration)
use ActiveRecord to interact with our database
use script/console to learn how ActiveRecord works

Model

handle application state (usually in the database)
encapsulate business logic, such as data validation and rules applied to data

ActiveRecord

ORM (object-relational mapping)
Instead of dealing with database through SQL statements, ORM layer presents records as a collection of objects
Table represents a collection of objects(stories)
Record represents an object/model (story)
Field represents an object attribute (title)

CRUD operations on database

C: create, insert record into table
R: read, select record(s) from table
U: update, update record(s) in the table
D: delete, delete record(s) from the table

FREE Ruby Text Editors

April 4th, 2008 |

I thought I’d start a list of text editors to use on Windows. Scite, although great for ruby editing, does not have a file explorer and Context pretty much bombed. Ugh!

Agile Developer and Instructor

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Presentations/Interviews

April 23rd, 2008 |

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April 17th, 2008 |

April 14th, 2008 |

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April 10th, 2008 |

April 9th, 2008 |

April 8th, 2008 |

April 6th, 2008 |

References

Objectives

Model

ActiveRecord

CRUD operations on database

April 4th, 2008 |

April 4th, 2008 |

April 1st, 2008 |

Thursday 12:30 p.m. Room 1116

April 1st, 2008 |

March 31st, 2008 |

Thursday
12:30 p.m.
Room 1116