Use a gem 🙃

Gemfile

@@ -55,6 +55,7 @@ gem "redis"
 gem "sentry-rails"
 gem "sentry-ruby"
 # Possessives in strings
+gem "auto_strip_attributes"
 gem "possessive"
 
 group :development, :test do

Gemfile.lock

@@ -81,6 +81,8 @@ GEM
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     ast (2.4.2)
+    auto_strip_attributes (2.6.0)
+      activerecord (>= 4.0)
     aws-eventstream (1.2.0)
     aws-partitions (1.609.0)
     aws-sdk-core (3.131.3)
@@ -428,6 +430,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
+  auto_strip_attributes
   aws-sdk-s3
   bootsnap (>= 1.4.4)
   bundler-audit

app/models/application_record.rb

@@ -1,7 +1,3 @@
 class ApplicationRecord < ActiveRecord::Base
   self.abstract_class = true
-
-  def strip_whitespaces
-    fields_to_strip.each { |field| self[field] = self[field].strip if field.present? }
-  end
 end

app/models/location.rb

@@ -6,11 +6,8 @@ class Location < ApplicationRecord
   has_paper_trail
 
   before_save :lookup_postcode!, if: :postcode_changed?
-  before_validation :strip_whitespaces
 
-  def fields_to_strip
-    %w[name]
-  end
+  auto_strip_attributes :name
 
   attr_accessor :add_another_location
 

app/models/organisation.rb

@@ -12,11 +12,7 @@ class Organisation < ApplicationRecord
 
   has_paper_trail
 
-  before_validation :strip_whitespaces
-
-  def fields_to_strip
-    %w[name]
-  end
+  auto_strip_attributes :name
 
   PROVIDER_TYPE = {
     LA: 1,

app/models/scheme.rb

@@ -19,11 +19,7 @@ class Scheme < ApplicationRecord
 
   validate :validate_confirmed
 
-  before_validation :strip_whitespaces
-
-  def fields_to_strip
-    %w[service_name]
-  end
+  auto_strip_attributes :service_name
 
   SENSITIVE = {
     No: 0,

app/models/user.rb

@@ -27,11 +27,7 @@ class User < ApplicationRecord
 
   has_one_time_password(encrypted: true)
 
-  before_validation :strip_whitespaces
-
-  def fields_to_strip
-    %w[name]
-  end
+  auto_strip_attributes :name
 
   ROLES = {
     data_provider: 1,