FIXED avatar_profile_link error

installed 'better_errors' and 'rails-erd'
$ brew install graphviz
+ Gemfile
~ gem 'better_errors'
~ gem 'binding_of_caller'
~ gem 'rails-erd'
$ bundle

$ rake erd

Gemfile

@@ -22,6 +22,12 @@ group :test do
   gem 'factory_girl_rails'
 end
 
+group :development do
+  gem 'better_errors'
+    gem 'binding_of_caller'
+  gem 'rails-erd'
+end
+
 group :development, :test do
   gem 'sqlite3'
   gem 'log_buddy'

Gemfile.lock

@@ -34,11 +34,18 @@ GEM
       nokogiri (>= 1.4.4)
       uuidtools (~> 2.1)
     bcrypt-ruby (3.0.1)
+    better_errors (0.8.0)
+      coderay (>= 1.0.0)
+      erubis (>= 2.6.6)
+    binding_of_caller (0.7.1)
+      debug_inspector (>= 0.0.1)
     builder (3.0.4)
+    choice (0.1.6)
     climate_control (0.0.3)
       activesupport (>= 3.0)
     cocaine (0.5.1)
       climate_control (>= 0.0.3, < 1.0)
+    coderay (1.0.9)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
       railties (~> 3.2.0)
@@ -47,6 +54,7 @@ GEM
       execjs
     coffee-script-source (1.6.2)
     daemons (1.1.9)
+    debug_inspector (0.0.2)
     devise (2.2.4)
       bcrypt-ruby (~> 3.0)
       orm_adapter (~> 0.1)
@@ -109,6 +117,11 @@ GEM
       activesupport (= 3.2.13)
       bundler (~> 1.0)
       railties (= 3.2.13)
+    rails-erd (1.1.0)
+      activerecord (>= 3.0)
+      activesupport (>= 3.0)
+      choice (~> 0.1.6)
+      ruby-graphviz (~> 1.0.4)
     railties (3.2.13)
       actionpack (= 3.2.13)
       activesupport (= 3.2.13)
@@ -121,6 +134,7 @@ GEM
       json (~> 1.4)
     request_store (1.0.5)
     rmagick (2.13.2)
+    ruby-graphviz (1.0.9)
     sass (3.2.8)
     sass-rails (3.2.6)
       railties (~> 3.2.0)
@@ -164,6 +178,8 @@ PLATFORMS
 
 DEPENDENCIES
   aws-sdk
+  better_errors
+  binding_of_caller
   coffee-rails (~> 3.2.1)
   devise
   draper (~> 1.0)
@@ -175,6 +191,7 @@ DEPENDENCIES
   paperclip
   pg
   rails (= 3.2.13)
+  rails-erd
   rmagick
   sass-rails (~> 3.2.3)
   shoulda

app/helpers/application_helper.rb

@@ -11,9 +11,9 @@ def can_display_status?(status)
 		signed_in? && !current_user.has_blocked?(status.user) || !signed_in?
 	end
 
-	def avatar_profile_link(user, image_options={}, html_options={})
-		avatar_url = user.avatar? ? user.avatar.url(:thumb) : nil #user.gravatar_url
-		link_to(image_tag(avatar_url, image_options), profile_path(user.profile_name), html_options)
+	def avatar_profile_link(thisuser, image_options={}, html_options={})
+		avatar_url = thisuser.avatar? ? thisuser.avatar.url(:thumb) : thisuser.gravatar_url #nil
+		link_to(image_tag(avatar_url, image_options), profile_path(thisuser.profile_name), html_options)
 	end
 
 	def flash_class(type)

app/models/document.rb

@@ -1,6 +1,21 @@
 class Document < ActiveRecord::Base
   attr_accessible :attachment, :remove_attachment
-  has_attached_file :attachment
+
+  has_attached_file :attachment,
+  path: ":attachment/:basename.:extension"
+
+  validates_attachment :attachment,
+  size: { :in => 0..5.megabytes },
+  content_type: { :content_type => [
+  					'image/jpeg', 
+  					'image/jpg', 
+  					'image/png', 
+  					'text/plain', 
+  					'audio/mpeg', 
+  					'application/pdf',
+  					'application/zip'
+  				]}
+
 
   attr_accessor :remove_attachment
 

app/models/user.rb

@@ -39,16 +39,23 @@ class User < ActiveRecord::Base
                                       conditions: { state: 'accepted' }
   has_many :accepted_friends, through: :accepted_user_friendships, source: :friend
 
-  has_attached_file :avatar, styles: {
-    large: "800x800>",
-    medium: "300x200>",
-    small: "260x180>",
-    thumb: "80x80#"
+  has_attached_file :avatar, 
+  path: ":attachment/:id_:basename_:style.:extension",
+  styles: {
+    large: ["800x800>", :jpg],
+    medium: ["300x200>", :png],
+    small: ["260x180>", :png],
+    thumb: ["80x80#", :png]
   }
+  validates_attachment :avatar,
+  content_type: { :content_type => ['image/jpeg', 'image/jpg', 'image/png'] },
+  size: { :in => 0..3.megabytes }
+
 
   def self.get_gravatars
     all.each do |user|
-      if !user.avatar?
+      if !user.avatar.exists?
+
         user.avatar = URI.parse(user.gravatar_url)
         user.save
         print "."
@@ -68,8 +75,7 @@ def gravatar_url
     stripped_email = email.strip
     downcased_email = stripped_email.downcase 
     hash = Digest::MD5.hexdigest(downcased_email)
-
-    "http://gravatar.com/avatar/#{hash}?d=mm"
+    "http://gravatar.com/avatar/#{hash}.jpg?d=mm&s=900"
   end
 
 
@@ -81,3 +87,4 @@ def has_blocked?(other_user)
 
 
 end
+

app/views/statuses/index.html.erb

@@ -9,7 +9,6 @@
   <div class="status">
     <div class="row">
       <div class="span1">
-        <%#= link_to image_tag(status.user.gravatar_url), profile_path(status.user) %>
         <%= avatar_profile_link status.user, {}, class: 'pull-left' %>
       </div>
       <div class="span7">