Changed cropping_params synta

- Updated Readme.md accordingly
- Fixes the bug in which prams.require.(:user) accidently got hardcoded

README.md

@@ -18,22 +18,17 @@
 
    provided that the attachment name is `avatar`.
 
-1. If using **Rails 4** , add this:
+1. If using **Rails 4** , `cropping_params(:avatar)` outputs a list of parameters being used by papercrop, where `:avatar` is the name of attachment as defined in your model. You can use this helper in two ways:
 
-        cropping_params(:avatar)
-
-    where `:avatar` is the name of attachment as defined in your model. You can use this helper in two ways:
-
-        @user.update_attributes(cropping_params(:avatar)
+        @user.update_attributes(params.require(:user).permit( cropping_params(:avatar) )
 
     or
 
         def user_params
-          params.require(:user).permit(:email,:password,:password_confirmation)
-          cropping_params(:avatar)
+          params.require(:user).permit(:email,:password,:password_confirmation,cropping_params(:avatar))
         end
 
-    The difference is that the former only allows cropping paramters through, which is useful if you are using a seperate cropping page. The       later is useful if the cropping box is somehow integrated with another form.
+    The difference is that the former only allows cropping paramters through, which is useful if you are using a seperate cropping page. The later is useful if the cropping form is somehow integrated with another form.
 
 1. Includes minified resources. Saves an additional ~30kB.
 

lib/papercrop/controller_extension.rb

@@ -7,7 +7,7 @@ def cropping_params(attachment_name)
 	    array = [ :crop_x, :crop_y, :crop_w, :crop_h, :original_w, :original_h, :box_w, :aspect, 
 	              :min_size, :max_size, :cropped_geometries]
 	    array = array.collect {|a| "#{attachment_name}_#{a}"}
-	    params.require(:user).permit(array)
+	    return array
 	  end
 
 	end