Screencast: Model ohne DB-Tabelle

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Resourcen:

• Nifty Generators
• Tableless Model in Rails
• Episode 61: Sending Email
• Full episode source code

Quellcode:

[bash] script/generate nifty_scaffold recommendation from_email:string to_email:string article_id:integer message:text new create rake db:migrate rake db:rollback rm db/migrate/*_recommendations.rb [/bash]

[ruby] # models/recommendation.rb class Recommendation < ActiveRecord::Base def self.columns() @columns ||= []; end def self.column(name, sql_type = nil, default = nil, null = true) columns << ActiveRecord::ConnectionAdapters::Column.new(name.to_s, default, sql_type.to_s, null) end column :from_email, :string column :to_email, :string column :article_id, :integer column :message, :text validates_format_of :from_email, :to_email, :with => /^[-a-z0-9_+.]+@([-a-z0-9]+.)+[a-z0-9]{2,4}$/i validates_length_of :message, :maximum => 500 belongs_to :article end

# recommendations_controller.rb def new @recommendation = Recommendation.new(:article_id => params[:article_id]) end

def create @recommendation = Recommendation.new(params[:recommendation]) if @recommendation.valid? # send email flash[:notice] = “Successfully created recommendation.” redirect_to root_url else render :action => ‘new’ end end [/ruby]