FIX: don't use memoize in the loop (#82)

[lis2]

FIX: don’t use memoize in the loop (#82)

Memoize was a bad idea when we have more than one pending timers

diff --git a/app/jobs/scheduled/encrypted_post_timer_evaluator.rb b/app/jobs/scheduled/encrypted_post_timer_evaluator.rb
index 148e0b2..9a507a8 100644
--- a/app/jobs/scheduled/encrypted_post_timer_evaluator.rb
+++ b/app/jobs/scheduled/encrypted_post_timer_evaluator.rb
@@ -8,10 +8,19 @@ module Jobs
       EncryptedPostTimer.pending.find_each do |encrypted_post_timer|
         ActiveRecord::Base.transaction do
           encrypted_post_timer.touch(:destroyed_at)
-          next if posts_to_delete(encrypted_post_timer).blank?
-          next unless @topic
-          @topic.update_columns(deleted_at: nil)
-          posts_to_delete(encrypted_post_timer).each do |post|
+
+          timer_post = Post.with_deleted.find_by(id: encrypted_post_timer.post_id)
+          next if !timer_post
+
+          timer_topic = Topic.with_deleted.find_by(id: timer_post.topic_id)
+          next if !timer_topic
+
+          posts_to_delete = find_posts_to_delete(timer_topic, timer_post)
+          next if posts_to_delete.blank?
+
+          timer_topic.update_columns(deleted_at: nil)
+
+          posts_to_delete.each do |post|
             next if !post&.persisted?
             PostDestroyer.new(post.user, post, permanent: true).destroy
           end
@@ -19,12 +28,10 @@ module Jobs
       end
     end
 
-    def posts_to_delete(encrypted_post_timer)
-      @post ||= Post.with_deleted.find_by(id: encrypted_post_timer.post_id)
-      return [] unless @post
-      @topic ||= Topic.with_deleted.find_by(id: @post.topic_id)
-      @posts_to_delete ||= @post&.is_first_post? ? @topic.posts.with_deleted.order(created_at: :desc) : [@post]
-      @posts_to_delete.compact
+    private
+
+    def find_posts_to_delete(topic, post)
+      (post.is_first_post? ? topic.posts.with_deleted.order(created_at: :desc) : [post]).compact
     end
   end
 end
diff --git a/spec/jobs/encrypted_post_timer_evaluator_spec.rb b/spec/jobs/encrypted_post_timer_evaluator_spec.rb
index 0bc7205..0652a7a 100644
--- a/spec/jobs/encrypted_post_timer_evaluator_spec.rb
+++ b/spec/jobs/encrypted_post_timer_evaluator_spec.rb
@@ -31,19 +31,22 @@ describe Jobs::EncryptedPostTimerEvaluator do
   context 'explosion of consecutive posts' do
     it 'when time is right, delete only one post' do
       encrypted_post_timer = EncryptedPostTimer.create!(post: post2, delete_at: 1.hour.from_now)
+      encrypted_post_timer2 = EncryptedPostTimer.create!(post: post3, delete_at: 1.hour.from_now)
       described_class.new.execute({})
       expect(post1.reload.persisted?).to be true
       expect(post2.reload.persisted?).to be true
       expect(post3.reload.persisted?).to be true
       expect(encrypted_post_timer.reload.destroyed_at).to be nil
+      expect(encrypted_post_timer2.reload.destroyed_at).to be nil
 
       freeze_time 61.minutes.from_now
       described_class.new.execute({})
       expect(post1.reload.persisted?).to be true
       expect { post2.reload }.to raise_error(ActiveRecord::RecordNotFound)
-      expect(post3.reload.persisted?).to be true
+      expect { post3.reload }.to raise_error(ActiveRecord::RecordNotFound)
       expect(topic.reload.persisted?).to be true
       expect(encrypted_post_timer.reload.destroyed_at).not_to be nil
+      expect(encrypted_post_timer2.reload.destroyed_at).not_to be nil
     end
 
     it 'does not error when post is already deleted' do

GitHub sha: 41a62020