I am trying to implement HMT for the first time and having a ton of trouble. I would like to be able to have the user check a checkbox and fill some extra fields for data input. I have tried so many iterations borrowed from different places I found on the web, none seem to work quite right. Essentially I have two models: 'practice' and 'system' where a practice can have one or many systems and I have a join model called 'implementation' where I also store some additional attributes such as who implemented the software and when. I have now rolled all my code back to the basics following the HABTM railscast. So right now when I check a checkbox (choosing the system) the join model (implementation) does get both system ID's but I cant figure out how to correctly add the additional 3 fields and have them stored when I save. I have included below what I think is relevant, I am beyond just hints at this point, I need help with the code itself - just cant get it to work. THANK YOU THANK YOU if you can help
-------PRACTICE MODEL------- class Practice < ActiveRecord::Base
attr_accessible :name, :tax_id, :location_ids, :employee_ids, :system_ids
has_and_belongs_to_many :employees has_and_belongs_to_many :locations
has_many :implementations has_many :systems, :through => :implementations
validates_presence_of :name, :tax_id
end
-----SYSTEM MODEL------- class System < ActiveRecord::Base
attr_accessible :system_publisher, :system_name, :system_type, :system_version, :system_version_certified, :practice_ids
has_many :implementations has_many :practices, :through => :implementations end -----IMPLEMENTATION MODEL----- class Implementation < ActiveRecord::Base
attr_accessible :system_start_date, :system_stop_date, :system_implemented_by, :system_ids, :practice_ids
belongs_to :system belongs_to :practice end ----PRACTICE CONTROLLER----
class PracticesController < ApplicationController
#added for auto complete text (HABTM) #auto_complete_for :location, :name #auto_complete_for :employee, :first_name
def index @practices = Practice.name_like_all(params[:search].to_s.split).ascend_by_name #@practices = Practice.all end
def show @practice = Practice.find(params[:id]) end
def new @practice = Practice.new end
def create @practice = Practice.new(params[:practice])
if @practice.save flash[:notice] = "Successfully created practice." redirect_to @practice else render :action => 'new' end end
def edit @practice = Practice.find(params[:id]) end
def update
params[:practice][:employee_ids] ||= params[:practice][:location_ids] ||= #? # params[:practice][:system_ids] ||= #?
@practice = Practice.find(params[:id]) if @practice.update_attributes(params[:practice]) flash[:notice] = "Successfully updated practice." redirect_to @practice else render :action => 'edit' end end
def destroy @practice = Practice.find(params[:id]) @practice.destroy flash[:notice] = "Successfully destroyed practice." redirect_to practices_url end end PRACTICE _form <% form_for @practice do |f| %> <%= f.error_messages %> <p> <%= f.label :name %><br /> <%= f.text_field :name %> </p> <p> <%= f.label :tax_id %><br /> <%= f.text_field :tax_id %> </p>
<p> <strong>Employee(s):</strong> <% for employee in Employee.find(:all) %> <div> <%= check_box_tag "practice[employee_ids]", employee.id, @practice.employees.include?(employee) %> <%= employee.first_name %> <%= employee.last_name %> </div> <% end %> </p> <p> <strong>Location(s):</strong> <% for location in Location.find(:all) %> <div> <%= check_box_tag "practice[location_ids]", location.id, @practice.locations.include?(location) %> <%= location.name %> </div> <% end %> </p>
<% for system in System.find(:all) %> <div> <%= check_box_tag "practice[system_ids]", system.id, @practice.systems.include?(system) %> <%= system.system_name %> </div> <% end %>
<p><%= f.submit %></p> <% end %>
