Displaying User Logo After Upload + Devise
As a Rails newbie, I am running into an issue in which I can not figure out. I am currently using Devise for authentication and Paperclip for attachments. I have successfully added an upload field to the user edit and the image saves successfully. 

My current setup right now is I have a header with a default Logo. I am trying to create a call that checks for if user has logo.

**Application Helper:**

    def logo_for(user)
    
    if user_signed_in? && user.logo.present?
      image_tag user.logo_url(:small)
    else 
      image_tag("logo.png", :alt => "Sample App", :class => "round")
  
       end
    end


**_header.html.erb**

    <%= link_to logo_for(@user), root_path %>



**User.rb**
    
    has_attached_file :logo,
    :styles => { :small => "150x150>" },
    :url  => "/images/logos/:id/:style/:basename.:extension",
    :path => ":rails_root/public/images/logos/:id/:style/:basename.:extension",
    :convert_options => { :all => "-auto-orient" }
    

     attr_accessible :users, :logo, :logo_file_name, :logo_content_type, :logo_file_size, :logo_updated_at
    end



I am receiving errors stating **NO HANDLER** undefined Method

How do I go about basically tapping into check if the user has uploaded a logo and have that display instead of default?

TIA!
Displaying User Logo After Upload + Devise
===

As a Rails newbie, I am running into an issue in which I can not figure out. I am currently using Devise for authentication and Paperclip for attachments. I have successfully added an upload field to the user edit and the image saves successfully. 

My current setup right now is I have a header with a default Logo. I am trying to create a call that checks for if user has logo.

**Application Helper:**

    def logo_for(user)
    
    if user_signed_in? && user.logo.present?
      image_tag user.logo_url(:small)
    else 
      image_tag("logo.png", :alt => "Sample App", :class => "round")
  
       end
    end


**_header.html.erb**

    <%= link_to logo_for(@user), root_path %>



**User.rb**
    
    has_attached_file :logo,
    :styles => { :small => "150x150>" },
    :url  => "/images/logos/:id/:style/:basename.:extension",
    :path => ":rails_root/public/images/logos/:id/:style/:basename.:extension",
    :convert_options => { :all => "-auto-orient" }
    

     attr_accessible :users, :logo, :logo_file_name, :logo_content_type, :logo_file_size, :logo_updated_at
    end



I am receiving errors stating **NO HANDLER** undefined Method

How do I go about basically tapping into check if the user has uploaded a logo and have that display instead of default?

TIA!