fixed job中issue不存在

app/jobs/touch_webhook_job.rb

@@ -6,6 +6,7 @@ class TouchWebhookJob < ApplicationJob
     when 'IssueCreate'
       issue_id, sender_id = args[0], args[1]
       issue = Issue.find_by_id issue_id
+      return if issue.nil?
       sender = User.find_by_id sender_id
       return if issue.nil? || sender.nil?
       issue.project.webhooks.each do |webhook| 
@@ -16,6 +17,7 @@ class TouchWebhookJob < ApplicationJob
     when 'IssueUpdate'
       issue_id, sender_id, changes = args[0], args[1], args[2]
       issue = Issue.find_by_id issue_id
+      return if issue.nil?
       sender = User.find_by_id sender_id
       return if issue.nil? || sender.nil? || !changes.is_a?(Hash) || changes.blank?
       issue.project.webhooks.each do |webhook| 
@@ -27,6 +29,7 @@ class TouchWebhookJob < ApplicationJob
     when 'IssueAssign'
       issue_id, sender_id, changes = args[0], args[1], args[2]
       issue = Issue.find_by_id issue_id
+      return if issue.nil?
       sender = User.find_by_id sender_id
       return if issue.nil? || sender.nil?
       issue.project.webhooks.each do |webhook| 
@@ -38,6 +41,7 @@ class TouchWebhookJob < ApplicationJob
     when 'IssueLabel'
       issue_id, sender_id, changes = args[0], args[1], args[2]
       issue = Issue.find_by_id issue_id
+      return if issue.nil?
       sender = User.find_by_id sender_id
       return if issue.nil? || sender.nil? 
       issue.project.webhooks.each do |webhook| 
@@ -49,6 +53,7 @@ class TouchWebhookJob < ApplicationJob
     when 'IssueComment'
       issue_id, sender_id, comment_id, action_type, comment_json = args[0], args[1], args[2], args[3], args[4]
       issue = Issue.find_by_id issue_id
+      return if issue.nil?
       comment = issue.comment_journals.find_by_id comment_id
       sender = User.find_by_id sender_id
       return if issue.nil? || sender.nil? 
@@ -63,6 +68,7 @@ class TouchWebhookJob < ApplicationJob
     when 'PullRequestComment'
       issue_id, sender_id, comment_id, action_type, comment_json = args[0], args[1], args[2], args[3], args[4]
       issue = Issue.find_by_id(issue_id)
+      return if issue.nil?
       comment = issue.comment_journals.find_by_id comment_id
       sender = User.find_by_id sender_id
       pull = issue.try(:pull_request)