CODEWITHSUNDEEP
ruby-on-railsruby
banditKing
banditKing

Reputation: 9579

rails constructor "def initialize" with attributes: correct way to pass in model

Hi I have a model called "Listing". Here is the constructor for the model:

def initialize(business)
    puts 'inside Listing.initialize'

    @name = business.name
    @telephone = business.telephone


    puts 'Created a new Listing'
end

I have a controller called "listings_controller" I have is another model called "Business". Inside the "listing_controller" I have a method in which I would like to instantiate a "Listing" with attributes of a "Business".

Here is the code that does that in a "listings_controller"

def create_listings

    self.get_all  
    @businesses.each do |business|
     Listing.create(business)

    end

end


def show

   self.create_listings
   @listings = Listing.all

   respond_to do |format|
   format.html #show.html.erb
   end

end

This initialization method is not working.Im getting this exception:

wrong number of arguments (2 for 1)

Rails.root: /Users/AM/Documents/RailsWS/cmdLineWS/Businesses

Application Trace | Framework Trace | Full Trace app/models/listing.rb:53:in initialize' app/controllers/listings_controller.rb:18:inblock in create_listings' app/controllers/listings_controller.rb:17:in each' app/controllers/listings_controller.rb:17:increate_listings' app/controllers/listings_controller.rb:26:in `show'

How can I fix this? Thanks

Upvotes: 4

Views: 17401

Answers (1)

wintersolutions
wintersolutions

Reputation: 5273

You could try (pseudocode/untested):

def initialize(business)
    puts 'inside Listing.initialize'

    @attributes.merge(business.attributes)

    puts 'Created a new Listing'

end

Upvotes: 4

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