Added background job to rebuild signature for user on new article.

app/models/observer/ticket/article/email_signature_detection.rb

@@ -25,5 +25,7 @@ class Observer::Ticket::Article::EmailSignatureDetection < ActiveRecord::Observe
 
     record.preferences[:signature_detection] = SignatureDetection.find_signature_line(user.preferences[:signature_detection], record.body)
 
+    # add queue job to update current signature of user id
+    Delayed::Job.enqueue( Observer::Ticket::Article::EmailSignatureDetection::BackgroundJob.new( record.created_by_id ) )
   end
 end

app/models/observer/ticket/article/signature_detection/background_job.rb

@@ -0,0 +1,9 @@
+class Observer::Ticket::Article::EmailSignatureDetection::BackgroundJob
+  def initialize(id)
+    @user_id = id
+  end
+
+  def perform
+    SignatureDetection.rebuild_user(@user_id)
+  end
+end

lib/signature_detection.rb

@@ -158,16 +158,33 @@ returns
   def self.rebuild_all_user
 
     User.select('id').where(active: true).each {|local_user|
+      rebuild_user(local_user.id)
+    }
+    true
+  end
 
-      signature_detection = by_user_id(local_user.id)
-      next if !signature_detection
+=begin
 
-      user = User.find(local_user.id)
-      next if user.preferences[:signature_detection] == signature_detection
+rebuild signature for user
+
+  SignatureDetection.rebuild_user
+
+returns
+
+  true/false
+
+=end
+
+  def self.rebuild_user(user_id)
+    signature_detection = by_user_id(user_id)
+    return if !signature_detection
+
+    user = User.find(user_id)
+    return if user.preferences[:signature_detection] == signature_detection
 
     user.preferences[:signature_detection] = signature_detection
     user.save
-    }
+
     true
   end