Update README to illustrate Ruby 1.9 hash syntax

README.md

@@ -159,7 +159,7 @@ gem "paperclip", "~> 2.7"
 Or, if you want to get the latest, you can get master from the main paperclip repository:
 Or, if you want to get the latest, you can get master from the main paperclip repository:
 
 
 ```ruby
 ```ruby
-gem "paperclip", :git => "git://github.com/thoughtbot/paperclip.git"
+gem "paperclip", git: "git://github.com/thoughtbot/paperclip.git"
 ```
 ```
 
 
 If you're trying to use features that don't seem to be in the latest released gem, but are
 If you're trying to use features that don't seem to be in the latest released gem, but are
@@ -188,8 +188,8 @@ Quick Start
 ```ruby
 ```ruby
 class User < ActiveRecord::Base
 class User < ActiveRecord::Base
   attr_accessible :avatar
   attr_accessible :avatar
-  has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"
-  validates_attachment_content_type :avatar, :content_type => /\Aimage\/.*\Z/
+  has_attached_file :avatar, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png"
+  validates_attachment_content_type :avatar, content_type: /\Aimage\/.*\Z/
 end
 end
 ```
 ```
 
 
@@ -197,8 +197,8 @@ end
 
 
 ```ruby
 ```ruby
 class User < ActiveRecord::Base
 class User < ActiveRecord::Base
-  has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"
-  validates_attachment_content_type :avatar, :content_type => /\Aimage\/.*\Z/
+  has_attached_file :avatar, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png"
+  validates_attachment_content_type :avatar, content_type: /\Aimage\/.*\Z/
 end
 end
 ```
 ```
 
 
@@ -221,7 +221,7 @@ end
 ### Edit and New Views
 ### Edit and New Views
 
 
 ```erb
 ```erb
-<%= form_for @user, :url => users_path, :html => { :multipart => true } do |form| %>
+<%= form_for @user, url: users_path, html: { multipart: true } do |form| %>
   <%= form.file_field :avatar %>
   <%= form.file_field :avatar %>
 <% end %>
 <% end %>
 ```
 ```
@@ -312,9 +312,9 @@ For validations, Paperclip introduces several validators to validate your attach
 Example Usage:
 Example Usage:
 
 
 ```ruby
 ```ruby
-validates :avatar, :attachment_presence => true
-validates_with AttachmentPresenceValidator, :attributes => :avatar
-validates_with AttachmentSizeValidator, :attributes => :avatar, :less_than => 1.megabytes
+validates :avatar, attachment_presence: true
+validates_with AttachmentPresenceValidator, attributes: :avatar
+validates_with AttachmentSizeValidator, attributes: :avatar, less_than: 1.megabytes
 
 
 ```
 ```
 
 
@@ -333,9 +333,9 @@ validates_attachment_presence :avatar
 Lastly, you can also define multiple validations on a single attachment using `validates_attachment`:
 Lastly, you can also define multiple validations on a single attachment using `validates_attachment`:
 
 
 ```ruby
 ```ruby
-validates_attachment :avatar, :presence => true,
-  :content_type => { :content_type => "image/jpeg" },
-  :size => { :in => 0..10.kilobytes }
+validates_attachment :avatar, presence: true,
+  content_type: { content_type: "image/jpeg" },
+  size: { in: 0..10.kilobytes }
 ```
 ```
 
 
 _NOTE: Post-processing will not even **start** if the attachment is not valid
 _NOTE: Post-processing will not even **start** if the attachment is not valid
@@ -393,7 +393,7 @@ image-y ones:
 
 
 ```ruby
 ```ruby
 validates_attachment :avatar,
 validates_attachment :avatar,
-  :content_type => { :content_type => ["image/jpeg", "image/gif", "image/png"] }
+  content_type: { content_type: ["image/jpeg", "image/gif", "image/png"] }
 ```
 ```
 
 
 `Paperclip::ContentTypeDetector` will attempt to match a file's extension to an
 `Paperclip::ContentTypeDetector` will attempt to match a file's extension to an
@@ -417,9 +417,9 @@ do this.
 class ActiveRecord::Base
 class ActiveRecord::Base
   has_attached_file :avatar
   has_attached_file :avatar
   # Validate content type
   # Validate content type
-  validates_attachment_content_type :avatar, :content_type => /\Aimage/
+  validates_attachment_content_type :avatar, content_type: /\Aimage/
   # Validate filename
   # Validate filename
-  validates_attachment_file_name :avatar, :matches => [/png\Z/, /jpe?g\Z/]
+  validates_attachment_file_name :avatar, matches: [/png\Z/, /jpe?g\Z/]
   # Explicitly do not validate
   # Explicitly do not validate
   do_not_validate_attachment_file_type :avatar
   do_not_validate_attachment_file_type :avatar
 end
 end
@@ -462,7 +462,7 @@ module YourApp
   class Application < Rails::Application
   class Application < Rails::Application
     # Other code...
     # Other code...
 
 
-    config.paperclip_defaults = {:storage => :fog, :fog_credentials => {:provider => "Local", :local_root => "#{Rails.root}/public"}, :fog_directory => "", :fog_host => "localhost"}
+    config.paperclip_defaults = { storage: :fog, fog_credentials: { provider: "Local", local_root: "#{Rails.root}/public"}, fog_directory: "", fog_host: "localhost"}
   end
   end
 end
 end
 ```
 ```
@@ -473,7 +473,7 @@ An example Rails initializer would look something like this:
 
 
 ```ruby
 ```ruby
 Paperclip::Attachment.default_options[:storage] = :fog
 Paperclip::Attachment.default_options[:storage] = :fog
-Paperclip::Attachment.default_options[:fog_credentials] = {:provider => "Local", :local_root => "#{Rails.root}/public"}
+Paperclip::Attachment.default_options[:fog_credentials] = { provider: "Local", local_root: "#{Rails.root}/public"}
 Paperclip::Attachment.default_options[:fog_directory] = ""
 Paperclip::Attachment.default_options[:fog_directory] = ""
 Paperclip::Attachment.default_options[:fog_host] = "http://localhost:3000"
 Paperclip::Attachment.default_options[:fog_host] = "http://localhost:3000"
 ```
 ```
@@ -612,12 +612,12 @@ processors. You can specify a processor with the `:processors` option to
 `has_attached_file`:
 `has_attached_file`:
 
 
 ```ruby
 ```ruby
-has_attached_file :scan, :styles => { :text => { :quality => :better } },
-                         :processors => [:ocr]
+has_attached_file :scan, styles: { text: { quality: :better } },
+                         processors: [:ocr]
 ```
 ```
 
 
 This would load the hypothetical class Paperclip::Ocr, which would have the
 This would load the hypothetical class Paperclip::Ocr, which would have the
-hash "{ :quality => :better }" passed to it along with the uploaded file. For
+hash "{ quality: :better }" passed to it along with the uploaded file. For
 more information about defining processors, see Paperclip::Processor.
 more information about defining processors, see Paperclip::Processor.
 
 
 The default processor is Paperclip::Thumbnail. For backwards compatibility
 The default processor is Paperclip::Thumbnail. For backwards compatibility
@@ -625,7 +625,7 @@ reasons, you can pass a single geometry string or an array containing a
 geometry and a format that the file will be converted to, like so:
 geometry and a format that the file will be converted to, like so:
 
 
 ```ruby
 ```ruby
-has_attached_file :avatar, :styles => { :thumb => ["32x32#", :png] }
+has_attached_file :avatar, styles: { thumb: ["32x32#", :png] }
 ```
 ```
 
 
 This will convert the "thumb" style to a 32x32 square in PNG format, regardless
 This will convert the "thumb" style to a 32x32 square in PNG format, regardless
@@ -640,12 +640,12 @@ receive the same parameters, which are defined in the `:styles` hash.
 For example, assuming we had this definition:
 For example, assuming we had this definition:
 
 
 ```ruby
 ```ruby
-has_attached_file :scan, :styles => { :text => { :quality => :better } },
-                         :processors => [:rotator, :ocr]
+has_attached_file :scan, styles: { text: { quality: :better } },
+                         processors: [:rotator, :ocr]
 ```
 ```
 
 
 then both the :rotator processor and the :ocr processor would receive the
 then both the :rotator processor and the :ocr processor would receive the
-options `{ :quality => :better }`. This parameter may not mean anything to one
+options `{ quality: :better }`. This parameter may not mean anything to one
 or more or the processors, and they are expected to ignore it.
 or more or the processors, and they are expected to ignore it.
 
 
 _NOTE: Because processors operate by turning the original attachment into the
 _NOTE: Because processors operate by turning the original attachment into the
@@ -701,8 +701,8 @@ Example Usage:
 
 
 ```ruby
 ```ruby
 has_attached_file :avatar, {
 has_attached_file :avatar, {
-    :url => "/system/:hash.:extension",
-    :hash_secret => "longSecretString"
+    url: "/system/:hash.:extension",
+    hash_secret: "longSecretString"
 }
 }
 ```
 ```
 
 
@@ -740,7 +740,7 @@ An option is available to preserve attachments in order to play nicely with soft
 
 
 ```ruby
 ```ruby
 has_attached_file :some_attachment, {
 has_attached_file :some_attachment, {
-    :preserve_files => "true",
+    preserve_files: "true",
 }
 }
 ```
 ```
 
 
@@ -788,7 +788,7 @@ look as follows where a boss will receive a `300x300` thumbnail otherwise a
 
 
 ```ruby
 ```ruby
 class User < ActiveRecord::Base
 class User < ActiveRecord::Base
-  has_attached_file :avatar, :styles => lambda { |attachment| { :thumb => (attachment.instance.boss? ? "300x300>" : "100x100>") } }
+  has_attached_file :avatar, styles: lambda { |attachment| { thumb: (attachment.instance.boss? ? "300x300>" : "100x100>") } }
 end
 end
 ```
 ```
 
 
@@ -805,7 +805,7 @@ processors, where a defined `watermark` processor is invoked after the
 
 
 ```ruby
 ```ruby
 class User < ActiveRecord::Base
 class User < ActiveRecord::Base
-  has_attached_file :avatar, :processors => lambda { |instance| instance.processors }
+  has_attached_file :avatar, processors: lambda { |instance| instance.processors }
   attr_accessor :processors
   attr_accessor :processors
 end
 end
 ```
 ```
@@ -866,12 +866,12 @@ Paperclip about existing styles. Simply create a `paperclip_attachments.yml` fil
 
 
 ```ruby
 ```ruby
 class User < ActiveRecord::Base
 class User < ActiveRecord::Base
-  has_attached_file :avatar, :styles => {:thumb => 'x100', :croppable => '600x600>', :big => '1000x1000>'}
+  has_attached_file :avatar, styles: { thumb: 'x100', croppable: '600x600>', big: '1000x1000>' }
 end
 end
 
 
 class Book < ActiveRecord::Base
 class Book < ActiveRecord::Base
-  has_attached_file :cover, :styles => {:small => 'x100', :large => '1000x1000>'}
-  has_attached_file :sample, :styles => {:thumb => 'x100'}
+  has_attached_file :cover, styles: { small: 'x100', large: '1000x1000>' }
+  has_attached_file :sample, styles: { thumb: 'x100' }
 end
 end
 ```
 ```