README.md in n1_loader-1.0.0 vs README.md in n1_loader-1.1.0

@@ -45,23 +45,21 @@
 class Example
   include N1Loader::Loadable
 
   # with inline loader
   n1_loader :anything do |elements|
-    # Has to return a hash that has keys as element from elements
-    elements.group_by(&:itself)
+    elements.each { |element| fulfill(element, [element]) }
   end
 
   # with custom loader
   n1_loader :something, MyLoader
 end
 
 # Custom loader that can be shared with many classes
 class MyLoader < N1Loader::Loader
-  # Has to return a hash that has keys as element from elements
   def perform(elements)
-    elements.group_by(&:itself)
+    elements.each { |element| fulfill(element, [element]) }
   end
 end
 
 # For single object
 ex = Example.new
@@ -78,12 +76,11 @@
 ```ruby
 class Example
   include N1Loader::Loadable
   
   n1_loader :anything do |elements|
-    # Has to return a hash that has keys as element from elements
-    elements.group_by(&:itself)
+    elements.each { |element| fulfill(element, [element]) }
   end
 end
 
 object = Example.new # => nothing was done for loading
 object.anything # => first time loading
@@ -97,12 +94,11 @@
 ### Shareable loaders
 
 ```ruby
 class MyLoader < N1Loader::Loader
   def perform(elements)
-    # Has to return a hash that has keys as element from elements
-    elements.group_by(&:itself)
+    elements.each { |element| fulfill(element, [element]) }
   end
 end
 
 class A
   include N1Loader::Loadable
@@ -126,12 +122,11 @@
 class Example
   include N1Loader::Loadable
 
   # with inline loader
   n1_loader :anything do |elements|
-    # Has to return a hash that has keys as element from elements
-    elements.group_by(&:itself)
+    elements.each { |element| fulfill(element, [element]) }
   end
 end
 
 object = Example.new
 object.anything # => loader is executed first time and value was cached
@@ -149,12 +144,11 @@
 ### Isolated loaders
 
 ```ruby
 class MyLoader < N1Loader::Loader
   def perform(elements)
-    # Has to return a hash that has keys as element from elements
-    elements.group_by(&:itself)
+    elements.each { |element| fulfill(element, [element]) }
   end
 end
 
 objects = [1, 2, 3, 4]
 loader = MyLoader.new(objects)
@@ -169,18 +163,17 @@
 class Example
   include N1Loader::Loadable
   
   n1_loader :something do # no arguments passed to the block, so we can override both perform and single.
     def perform(elements)
-      # Has to return a hash that has keys as element from elements
-      elements.group_by(&:itself)
+      elements.each { |element| fulfill(element, [element]) }
     end
     
     # Optimized for single object loading
     def single(element)
       # Just return a value you want to have for this element
-      element
+      [element]
     end
   end
 end
 
 object = Example.new
@@ -204,12 +197,11 @@
   include N1Loader::Loadable
   
   n1_loader :orders_count do |users|
     hash = Order.where(user: users).group(:user_id).count
     
-    # hash has to have keys as initial elements
-    hash.transform_keys! { |key| users.find { |user| user.id == key } }
+    users.each { |user| fulfill(user, hash[user.id]) }
   end
 end
 
 # For single user
 user = User.first
@@ -232,12 +224,11 @@
 class User < ActiveRecord::Base
   include N1Loader::Loadable
   
   n1_loader :orders_count do |users|
     hash = Order.where(user: users).group(:user_id).count
-    
-    # hash has to have keys as initial elements
-    hash.transform_keys! { |key| users.find { |user| user.id == key } }
+
+    users.each { |user| fulfill(user, hash[user.id]) }
   end
 end
 
 # For single user
 user = User.first
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