CODEWITHSUNDEEP
ruby-on-railsvalidation
Kevin
Kevin

Reputation: 561

Ruby on Rails symbol validation

I have this model:

class Story < ActiveRecord::Base
    validates_presence_of :name , :link
end

Where a validation for a form take place. But I want also to validate if the string "http" is included in the :link symbol. I can't do :link.include? because :link is symbol. How do I do that?

My View is this:

<% form_for :story do |f| %>
<p>
  name:<br />
  <%=f.text_field :name %>
</p>
<p>
  link:<br />
  <%= f.text_field :link %>
</p>
<p>
  <%= submit_tag :"submit this story" %>
</p>
<% end %>

Upvotes: 1

Views: 1162

Answers (2)

autodata
autodata

Reputation: 146

...in the :link symbol. I can't do :link.include? because :link is symbol.

Just so it's clear, note that :link (as a symbol) is just a way to pass the name of the link method, in this case telling the validation which methods it should work on. If you want to value returned by link (which would presumably be the link attribute of the object), you would call link as a normal method. For validations, however, Peter's answer is what you want.

Upvotes: 1

Peter Coulton
Peter Coulton

Reputation: 55829

If you add in a validates_format_of you can supply a regex to test the link with.

class Story < ActiveRecord::Base
    validates_presence_of :name , :link
    validates_format_of :link, :with => /^http.*$/
end

Upvotes: 7

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