owners_添加关系？

Question

these are my models

class Apartment
belongs_to :house
end

class House
has_many :apartments
end

apartment_controller;

def index
    @apartments = Appartment.all
end

apartment index view

.span9
  #container
    - @appartments.each do |apartment|
      .item{:class => apartment.features_to_html_class }
        %article.info.t_xs
          .article-base
            %section
              .span3
                %h2 #{link_to apartment.name, appartment_path(apartment)}
                %p 
                  = raw truncate(apartment.property_description, :length => 375, :omission => '...')
                %footer
                  %ul.meta
                    %li.comments
                      #{apartment.count_ratings} 
                      = t('apartment.details.reviews')
                    %li.notes
                      #{apartment.guests}
                      = t('apartment.details.persons')
                    %li.notes
                      #{apartment.bedrooms}
                      = t('apartment.details.bedrooms')
                    %li.notes
                      #{apartment.bathrooms}
                      = t('apartment.details.bathrooms')

            %ul.thumbnails
              %li.span5
                = image_tag(apartment.attachments.last.file.url, :class => 'thumbnail')
              - apartment.attachments.limit(4).each do |a|
                %li.span1
                  %a{:href => "#"}
                  = image_tag(a.file.url(:thumb), :class => "thumbnail")

            .span8
              %footer
                #more
                  #{link_to t('apartments.summary.button'), appartment_path(apartment), :class => 'btn btn-primary'}

i get all the apartments from the DB. But now i want to add a link (belongs_to) to the house in at the apartment summary. how can i do this...thanks..remco

Answer 1

您是否尝试过link_to“房屋”，house_path（apartment.house）？

Answer 2

Try this:

<%= link_to 'House', house_path(apartment.house) %> 

or

<%= link_to 'House', house_url(apartment.house) %>

Regards!

Answer 3

You got all the apartments in the database. Now you run the sql to get the apartments object.
Then iterate each apartment and link it to house with the association.

This is done as follows:

def index
        @apartments = Appartment.all

    @apartments.each do |apartment|
       #this is giving you the link to house via association defined.
         apartment.house 

       #this is giving you the value of the field say `house_name` of house table that is linked to apartment.

         @house_name = apartment.house.house_name
      .
      .
      .
    end
end