house model
class House < ActiveRecord::Base
has_many :categories, :through => :category_join_table
def features_to_html_class
"#{price} #{rooms} #{guests} #{{categories.name do |cat| cat.name}}"
end
end
House index template
- @houses.each do |house|
.item{:class => house.features_to_html_class }
The values price, rooms, guests are parsed correctly in the view (filtering purposes), but not the categories. What i am doing wrong ?
Try this:
categories.map{|cat|cat.name|}.join(' ')
You don't want to have multiple classes for the same category name if there is a space.
Top Articles
Articles
Would produce:
class="Top Articles Articles"
You could go a step further and replace spaces with dashes, and downcase it all:
"#{ categories.map{ |cat| cat.name.parameterize }"
class="top-articles articles"
EDIT:
As Anthony pointed out in the comments, if you're using Rails, you can use parameterize.
String#parameterize to convert a string to a standardized representationYou should iterate through each name categori so you need to use:
{categories.name.each { |cat| cat.name}}
each method will return the original array object. You should use map instead. Try it yourself on an irb console.