1 files changed, 39 insertions, 39 deletions

diff --git a/activemodel/README.rdoc b/activemodel/README.rdoc
index 89cacbcab4..b5b5edd52a 100644
--- a/activemodel/README.rdoc
+++ b/activemodel/README.rdoc
@@ -8,7 +8,7 @@ the Rails framework.
 Prior to Rails 3.0, if a plugin or gem developer wanted to have an object
 interact with Action Pack helpers, it was required to either copy chunks of
 code from Rails, or monkey patch entire helpers to make them handle objects
-that did not exacly conform to the Active Record interface. This would result
+that did not exactly conform to the Active Record interface. This would result
 in code duplication and fragile applications that broke on upgrades.
 
 Active Model solves this. You can include functionality from the following
@@ -18,38 +18,38 @@ modules:
 
     class Person
       include ActiveModel::AttributeMethods
-      
+
       attribute_method_prefix 'clear_'
       define_attribute_methods [:name, :age]
-      
+
       attr_accessor :name, :age
-      
+
       def clear_attribute(attr)
         send("#{attr}=", nil)
       end
     end
-    
+
     person.clear_name
     person.clear_age
-  
+
   {Learn more}[link:classes/ActiveModel/AttributeMethods.html]
-  
+
 * Callbacks for certain operations
 
     class Person
       extend ActiveModel::Callbacks
       define_model_callbacks :create
-    
+
       def create
-        _run_create_callbacks do
+        run_callbacks :create do
           # Your create action methods here
         end
       end
     end
-  
+
   This generates +before_create+, +around_create+ and +after_create+
   class methods that wrap your create method.
-  
+
   {Learn more}[link:classes/ActiveModel/CallBacks.html]
 
 * Tracking value changes
@@ -66,38 +66,38 @@ modules:
     person.name = 'robert'
     person.save
     person.previous_changes # => {'name' => ['bob, 'robert']}
-  
+
   {Learn more}[link:classes/ActiveModel/Dirty.html]
 
 * Adding +errors+ interface to objects
 
   Exposing error messages allows objects to interact with Action Pack
   helpers seamlessly.
-  
+
     class Person
-    
+
       def initialize
         @errors = ActiveModel::Errors.new(self)
       end
-    
+
       attr_accessor :name
       attr_reader   :errors
-    
+
       def validate!
-        errors.add(:name, "can not be nil") if name == nil
+        errors.add(:name, "can not be nil") if name.nil?
       end
-    
+
       def ErrorsPerson.human_attribute_name(attr, options = {})
         "Name"
       end
-    
+
     end
-    
+
     person.errors.full_messages
-    # => ["Name Can not be nil"]
-    
+    # => ["Name can not be nil"]
+
     person.errors.full_messages
-    # => ["Name Can not be nil"]
+    # => ["Name can not be nil"]
 
   {Learn more}[link:classes/ActiveModel/Errors.html]
 
@@ -106,9 +106,9 @@ modules:
     class NamedPerson
       extend ActiveModel::Naming
     end
-    
-    NamedPerson.model_name        #=> "NamedPerson"
-    NamedPerson.model_name.human  #=> "Named person"
+
+    NamedPerson.model_name        # => "NamedPerson"
+    NamedPerson.model_name.human  # => "Named person"
 
   {Learn more}[link:classes/ActiveModel/Naming.html]
 
@@ -117,19 +117,19 @@ modules:
   ActiveModel::Observers allows your object to implement the Observer
   pattern in a Rails App and take advantage of all the standard observer
   functions.
-  
+
   {Learn more}[link:classes/ActiveModel/Observer.html]
 
 * Making objects serializable
 
   ActiveModel::Serialization provides a standard interface for your object
   to provide +to_json+ or +to_xml+ serialization.
-  
+
     s = SerialPerson.new
     s.serializable_hash   # => {"name"=>nil}
     s.to_json             # => "{\"name\":null}"
     s.to_xml              # => "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<serial-person...
-  
+
   {Learn more}[link:classes/ActiveModel/Serialization.html]
 
 * Internationalization (i18n) support
@@ -137,10 +137,10 @@ modules:
     class Person
       extend ActiveModel::Translation
     end
-    
+
     Person.human_attribute_name('my_attribute')
-    #=> "My attribute"
-  
+    # => "My attribute"
+
   {Learn more}[link:classes/ActiveModel/Translation.html]
 
 * Validation support
@@ -157,10 +157,10 @@ modules:
 
    person = Person.new
    person.first_name = 'zoolander'
-   person.valid?  #=> false
+   person.valid?  # => false
 
   {Learn more}[link:classes/ActiveModel/Validations.html]
-  
+
 * Custom validators
 
    class Person
@@ -168,17 +168,17 @@ modules:
      validates_with HasNameValidator
      attr_accessor :name
    end
-   
+
    class HasNameValidator < ActiveModel::Validator
      def validate(record)
       record.errors[:name] = "must exist" if record.name.blank?
      end
    end
-   
+
    p = ValidatorPerson.new
-   p.valid?                  #=>  false
-   p.errors.full_messages    #=> ["Name must exist"]
+   p.valid?                  # =>  false
+   p.errors.full_messages    # => ["Name must exist"]
    p.name = "Bob"
-   p.valid?                  #=>  true
+   p.valid?                  # =>  true
 
   {Learn more}[link:classes/ActiveModel/Validator.html]