My Requirement : To Add validation to make sure that SITEMAP_URL keyword is always included in search_engines.url and it should be of format http://www.example.com/
class SearchEngine < ActiveRecord::Base
validates :name, :ping_url, :uniqueness => true, :presence => true
validates :ping_url, :format => {:with => /\=SITEMAP_URL$/}, :presence => true
end
Is the validation i have written is correct .
The validation looks fine.
Except if you expect /\=SITEMAP_URL$/ to interpolate it won't.
It will only match strings like;
Is that really what you mean?
If you have
SITEMAP_URL = "/sitemap.xml"
Then you can say
SITEMAP_REGEXP = /\=#{SITEMAP_URL}/
But this will interpret the "." as any character.
So you need to use Regexp.escape
Pretty much
Regexp.new(Regexp.escape("=#{SITEMAP_URL}")+"$")
Should do what you want.
