======
Schema
======

 create_table "logs", :force => true do |t|
    t.date     "date"
    t.text     "description"
    t.string   "title"
    t.string   "summary"
    t.integer  "car_id"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "maintenance_id"
    t.integer  "mileage"
    t.string   "rtype"
    t.string   "oil_brand"
    t.string   "oil_type"
    t.string   "oil_filter_type"
  end

======
Models
======

class Log < ActiveRecord::Base
    belongs_to :car
    has_and_belongs_to_many :tags
  set_inheritance_column :rtype

  def self.types
    v = Array.new()

    v.push(nil)
    v.push("OilChange")
    v.push("BrakePads")
    v.push("TimingBelt")

    return v
  end

end

class Car < ActiveRecord::Base
    has_many :logs
end

class OilChange < Log
end

===========
Controllers
===========

  # POST /logs
  # POST /logs.xml
  def create
    @log = Log.new(params[:log])

    @log.rtype = params[:log][:rtype]

    respond_to do |format|
      if @log.save
        flash[:notice] = 'Log was successfully created.'
        format.html { redirect_to(@log) }
        format.xml  { render :xml => @log, :status => :created, :location => @log }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @log.errors, :status => :unprocessable_entity }
      end
    end
  end

  # GET /logs/new
  # GET /logs/new.xml
  def new
    @log = Log.new

    @m_types = Log.types
    @cars = Car.all

    print @maintenance

        if not params[:car].nil?
            @log.car = params[:car]
        end

    respond_to do |format|
      format.html # new.html.erb
      format.xml  { render :xml => @log }
    end
  end

====
View
====

<h1>New log</h1>

<% form_for(@log) do |f| %>
  <%= f.error_messages %>

  <p>
    <%= f.label :date %><br />
    <%= f.date_select :date %>
  </p>
  <p>
    <%= f.label :title %><br />
    <%= f.text_field :title %>
  </p>
  <p>
    <%= f.label :summary %><br />
    <%= f.text_field :summary %>
  </p>
  <p>
    <%= f.label :car %><br />
        <%= collection_select(:log, :car_id, @cars, :id, :name, {}, {}) %>
  </p>
  <p>
    <%= f.label :rtype %>
    <%= f.select :rtype, @m_types  %>
  </p>
  <p>
    <%= f.label :description %><br />
    <%= f.text_area :description %>
  </p>
  <p>
    <%= f.submit 'Create' %>
  </p>
<% end %>

<%= link_to 'Back', logs_path %>