Allow using auth_devise with discard

app/models/spree/user.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require 'paranoia'
-
 module Spree
   class User < Spree::Base
     include UserMethods
@@ -10,8 +8,18 @@ class User < Spree::Base
            :rememberable, :trackable, :validatable, :encryptable
     devise :confirmable if Spree::Auth::Config[:confirmable]
 
-    acts_as_paranoid
+    if defined?(Spree::SoftDeletable)
+      include Spree::SoftDeletable
+    else
+      acts_as_paranoid
+      include Spree::ParanoiaDeprecations
+
+      include Discard::Model
+      self.discard_column = :deleted_at
+    end
+
     after_destroy :scramble_email_and_password
+    after_discard :scramble_email_and_password
 
     def password=(new_password)
       generate_spree_api_key if new_password.present? && spree_api_key.present?

solidus_auth_devise.gemspec

@@ -40,7 +40,6 @@ Gem::Specification.new do |s|
   s.add_dependency "deface", "~> 1.0"
   s.add_dependency "devise", '~> 4.1'
   s.add_dependency "devise-encryptable", "0.2.0"
-  s.add_dependency "paranoia", "~> 2.4"
   s.add_dependency "solidus_core", solidus_version
   s.add_dependency "solidus_support", "~> 0.5"
 

spec/models/user_spec.rb

@@ -50,18 +50,8 @@
   end
 
   describe '#destroy' do
-    # Users with orders are not deletable in Solidus core
-    # therefore we cannot test this behaviour here.
-    # Also there are already sufficient specs in core.
     let(:user) { create(:user) }
 
-    it 'acts_as_paranoid' do
-      # Instead of testing implementation details of `acts_as_paranoid`
-      # we are testing that we are using `acts_as_paranoid` by using duck typing
-      expect(described_class).to respond_to(:with_deleted)
-      expect(user).to respond_to(:deleted_at)
-    end
-
     context 'with same email address as previously deleted account' do
       it 'will allow users to register later' do
         user1 = build(:user)
@@ -72,13 +62,27 @@
         expect(user2.save).to be false
         expect(user2.errors.messages[:email].first).to eq "has already been taken"
 
-        user1.destroy
+        user1.discard
         expect(user2.save).to be true
       end
     end
   end
 
-  describe '#really_destroy!' do
+  describe '#destroy' do
+    let(:user) { create(:user) }
+
+    it 'removes the record from the database' do
+      user.destroy
+
+      if defined?(Spree::ParanoiaDeprecations)
+        expect(Spree::User.with_discarded.exists?(id: user.id)).to eql true
+      else
+        expect(Spree::User.with_discarded.exists?(id: user.id)).to eql false
+      end
+    end
+  end
+
+  describe '#really_destroy!', if: defined?(Spree::ParanoiaDeprecations) do
     let(:user) { create(:user) }
 
     it 'removes the record from the database' do