5 files changed, 10 insertions, 10 deletions
diff --git a/guides/source/action_controller_overview.md b/guides/source/action_controller_overview.md
index 6a91418e1f..f1600fe458 100644
--- a/guides/source/action_controller_overview.md
+++ b/guides/source/action_controller_overview.md
@@ -410,7 +410,7 @@ class ApplicationController < ActionController::Base
   # logging out removes it.
   def current_user
     @_current_user ||= session[:current_user_id] &&
-      User.find_by_id(session[:current_user_id])
+      User.find_by(id: session[:current_user_id])
   end
 end
 ```
diff --git a/guides/source/action_mailer_basics.md b/guides/source/action_mailer_basics.md
index d420365ec0..87a08e8661 100644
--- a/guides/source/action_mailer_basics.md
+++ b/guides/source/action_mailer_basics.md
@@ -517,7 +517,7 @@ method. Here's an example:
 ```ruby
 class UserMailer < ActionMailer::Base
   def receive(email)
-    page = Page.find_by_address(email.to.first)
+    page = Page.find_by(address: email.to.first)
     page.emails.create(
       subject: email.subject,
       body: email.body
diff --git a/guides/source/active_record_basics.md b/guides/source/active_record_basics.md
index 1f25c6ae95..d9fb20f3bf 100644
--- a/guides/source/active_record_basics.md
+++ b/guides/source/active_record_basics.md
@@ -253,7 +253,7 @@ user = User.first
 
 ```ruby
 # return the first user named David
-david = User.find_by_name('David')
+david = User.find_by(name: 'David')
 ```
 
 ```ruby
@@ -270,7 +270,7 @@ Once an Active Record object has been retrieved, its attributes can be modified
 and it can be saved to the database.
 
 ```ruby
-user = User.find_by_name('David')
+user = User.find_by(name: 'David')
 user.name = 'Dave'
 user.save
 ```
@@ -279,7 +279,7 @@ A shorthand for this is to use a hash mapping attribute names to the desired
 value, like so:
 
 ```ruby
-user = User.find_by_name('David')
+user = User.find_by(name: 'David')
 user.update(name: 'Dave')
 ```
 
@@ -297,7 +297,7 @@ Likewise, once retrieved an Active Record object can be destroyed which removes
 it from the database.
 
 ```ruby
-user = User.find_by_name('David')
+user = User.find_by(name: 'David')
 user.destroy
 ```
 
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md
index c0e584a1c7..884aa6a9ea 100644
--- a/guides/source/association_basics.md
+++ b/guides/source/association_basics.md
@@ -2171,7 +2171,7 @@ You're not limited to the functionality that Rails automatically builds into ass
 class Customer < ActiveRecord::Base
   has_many :orders do
     def find_by_order_prefix(order_number)
-      find_by_region_id(order_number[0..2])
+      find_by(region_id: order_number[0..2])
     end
   end
 end
diff --git a/guides/source/layouts_and_rendering.md b/guides/source/layouts_and_rendering.md
index f6cac997ff..5908801bc9 100644
--- a/guides/source/layouts_and_rendering.md
+++ b/guides/source/layouts_and_rendering.md
@@ -592,7 +592,7 @@ def index
 end
 
 def show
-  @book = Book.find_by_id(params[:id])
+  @book = Book.find_by(id: params[:id])
   if @book.nil?
     render action: "index"
   end
@@ -607,7 +607,7 @@ def index
 end
 
 def show
-  @book = Book.find_by_id(params[:id])
+  @book = Book.find_by(id: params[:id])
   if @book.nil?
     redirect_to action: :index
   end
@@ -626,7 +626,7 @@ def index
 end
 
 def show
-  @book = Book.find_by_id(params[:id])
+  @book = Book.find_by(id: params[:id])
   if @book.nil?
     @books = Book.all
     flash.now[:alert] = "Your book was not found"