Skip to main content

Posts

Showing posts with the label rails

Introduction to Rails: An eleven-part series

View FULL YouTube playlist First of 11 videos: Enjoy!

Learning Ruby - A gift to the developer community

For those learning Ruby, I've posted my code samples from the years I taught at Spokane Community College. You can find the code on Github at http://github.com/kblake/learning-ruby/tree/master You can view my Ruby/Rails screencasts on Viddler at http://www.viddler.com/explore/kblake/videos/ Enjoy!!

vim.merge!(rails)

After meeting tpope and pair programming with reinh I got to see the power of vim . I have never used vim before so this is all new to me. I've been using TextMate exclusively since starting Rails a few years ago. I came to work and started in on a pursuit of how I can do in vim what I do in Textmate. While on this quest, I will document along the way some useful tips that may help you too. I'll document some vim things I've learned so far: Install rails.vim Other plugins: BlockComment , NERDTree , FuzzyFinderTextmate , minibufexpl , vcscommand Vim commands I use often: gf - when cursor is on class name it'll take you to that class definition yyp - duplicate current line :AS - I use a lot to look at code and spec at the same time ^p - autocomplete word from any open file control + shift + 6 - switch between two buffers shift + s - to delete current line :%s/old/new/g - to change text to new text / - to go to line number on page /text, then enter key - to f...

Rails Chops: Model Associations

Ok, remind me not to create screencasts after 10:00 p.m. I have another 5 minute spot towards the end where I’m off in lala land. You can fast forward through it or use it as ammunition for our next conversation. :) Please view in full screen.

Rails Chops: RESTful Routes

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 ...

Rails Chops: Working with databases

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