More convenient callback alias methods

README.md

@@ -84,6 +84,12 @@ CouchRest uses a mixin you can find in lib/mixins/callbacks which is extracted f
     set_callback :save, :after,  :after_method, :if => :condition
     set_callback :save, :around {|r| stuff; yield; stuff }
     
+    Or the new shorter version:
+    
+    before_save :before_method
+    after_save  :after_method, :if => :condition
+    around_save {|r| stuff; yield; stuff }
+    
 Check the mixin or the ExtendedDocument class to see how to implement your own callbacks.
 
 ### Casting

lib/couchrest/mixins/callbacks.rb

@@ -528,6 +528,16 @@ module CouchRest
 
             self.set_callback(:#{symbol}, :before)
           RUBY_EVAL
+          
+          # Define more convenient callback methods
+          # set_callback(:save, :before) becomes before_save
+          [:before, :after, :around].each do |filter|
+            self.class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
+              def self.#{filter}_#{symbol}(meth=nil, &blk)
+                set_callback(:#{symbol}, :#{filter}, meth||blk)
+              end
+            RUBY_EVAL
+          end
         end
       end
     end

spec/couchrest/more/casted_model_spec.rb

@@ -35,10 +35,10 @@ class WithCastedCallBackModel < Hash
   property :run_before_validate
   property :run_after_validate
   
-  set_callback :validate, :before do |object|
+  before_validate do |object|
     object.run_before_validate = true
   end
-  set_callback :validate, :after do |object| 
+  after_validate do |object| 
     object.run_after_validate = true
   end
 end

spec/couchrest/more/extended_doc_spec.rb

@@ -29,28 +29,28 @@ describe "ExtendedDocument" do
     property :run_before_update
     property :run_after_update
     
-    set_callback :validate, :before do |object|
+    before_validate do |object|
       object.run_before_validate = true
     end
-    set_callback :validate, :after do |object| 
+    after_validate do |object| 
       object.run_after_validate = true
     end
-    set_callback :save, :before do |object| 
+    before_save do |object| 
       object.run_before_save = true
     end
-    set_callback :save, :after do |object| 
+    after_save do |object| 
       object.run_after_save = true
     end
-    set_callback :create, :before do |object| 
+    before_create do |object| 
       object.run_before_create = true
     end
-    set_callback :create, :after do |object| 
+    after_create do |object| 
       object.run_after_create = true
     end
-    set_callback :update, :before do |object| 
+    before_update do |object| 
       object.run_before_update = true
     end
-    set_callback :update, :after do |object| 
+    after_update do |object| 
       object.run_after_update = true
     end
   end

spec/fixtures/more/article.rb

@@ -26,7 +26,7 @@ class Article < CouchRest::ExtendedDocument
 
   timestamps!
   
-  set_callback :save, :before, :generate_slug_from_title
+  before_save :generate_slug_from_title
   
   def generate_slug_from_title
     self['slug'] = title.downcase.gsub(/[^a-z0-9]/,'-').squeeze('-').gsub(/^\-|\-$/,'') if new?