#activerecordlite

[joyjing1-blog]

W3D5 - ActiveRailsLite

Topics

ActiveRecord

Associations

Rails

Projects

ActiveRecordLite - build our own version of ActiveRecord using rspecs to check that everything's running correctly

Solo project

my_attr_accessor/readers

SQLObject class

::all

::find

#insert

#update

#save

Class Getter & Setter methods

::table_name

::table_name=

::columns - class method that lists all columns

::finalize! - automatically adds getter & setter methods

#attributes - use a hash to save all instant variables/attributes

#initialize - takes single params hash

::all - fetch all records from the DB

::parse_all

::find - return a single object with the given ID

#insert - builds and executes a SQL query to insert a row into the table

#update - updates a record's attributes

#save - calls #insert or #update

module Searchable - extend SQLObject with Searchable to use Searchable@where(params)

Associations

Associatable

AssocOptions

@class_name

#foreign_key

#primary_key

BelongsToOptions - extend AssocOptions

HasManyOptions - extend AssocOptions

#model_class - use String#constantize to go from class name --> class object

#table_name

Associatable#belongs_to - build a BelongsToOptions object

Associatable#has_many - build a HasManyOptions object

has_one_through - method that will combine two belongs_to associations

Learnings

It's much more fun to pair with a buddy!

It's takes more time to catch your own silly syntax errors...

ActiveSupport::Inflector - useful for changing plurality/singularity & case (snake_case/CamelCase) of strings & symbols to get the correct one when working in Rails

http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html

There are so many video lectures this weekend!! And it does not pay off to try to get started on the work early, since App Academy uploaded new, shorter videos Saturday night, after I'd already watched the 3 hours of original video... >.<

[psl646]

W5D3

Today I Learned: about JavaScript basics.

Today was an odd day. We did not have a lecture; however, we did have bagels. We had another solo day as we worked on finishing up our Rails Lite project and ActiveRecord project. These exercises were meant to demystify the magic of Rails and help us gain a better understanding of the underpinnings of Rails.

We finished up with our Rails curriculum today and are now proficient in Rails. With that, we will begin the next portion of the curriculum - JavaScript.

I spent the evening working on JavaScript problems and doing required readings and prepartion.

[iannknguyen]

W5D3 - Rails Lite Pt.2

Short post today. To sum up, we worked on completing Rails Lite. I had the time to go back and tackle ActiveRecord Lite and am close to finishing it. I’m probably going to get back to it right now after I post this, and plan to tacking the bonuses Rails Lite when I get the chance.

Tomorrow

We’re learning Javascript tonight and working on it tomorrow. We’re expected to know javascript as well as we knew Ruby the first day we started here.

Cheers