新增：接口附件内容返回

app/views/api/v1/attachments/_simple_detail.json.jbuilder

@@ -0,0 +1,7 @@
+json.id attachment.id
+json.title attachment.title
+json.filesize number_to_human_size(attachment.filesize)
+json.is_pdf attachment.is_pdf?
+json.url attachment.is_pdf? ? download_url(attachment,disposition:"inline") : download_url(attachment)
+json.created_on attachment.created_on.strftime("%Y-%m-%d %H:%M")
+json.content_type attachment.content_type

app/views/api/v1/issues/_detail.json.jbuilder

@@ -39,4 +39,7 @@ json.participants issue.participants.distinct.each do |participant|
   json.partial! "api/v1/users/simple_user", locals: {user: participant}
 end
 json.comment_journals_count issue.comment_journals.size
-json.operate_journals_count issue.operate_journals.size
+json.operate_journals_count issue.operate_journals.size
+json.attachments issue.attachments.each do |attachment|
+  json.partial! "api/v1/attachments/simple_detail", locals: {attachment: attachment}
+end

app/views/api/v1/issues/journals/_children_detail.json.jbuilder

@@ -14,4 +14,7 @@ json.reply_user do
   else 
     json.nil! 
   end
+end
+json.attachments journal.attachments.each do |attachment| 
+  json.partial! "api/v1/attachments/simple_detail", locals: {attachment: attachment}
 end

app/views/api/v1/issues/journals/_detail.json.jbuilder

@@ -17,4 +17,7 @@ else
   json.children_journals journal.first_ten_children_journals.each do |journal| 
     json.partial! "children_detail", journal: journal
   end
+  json.attachments journal.attachments do |attachment| 
+    json.partial! "api/v1/attachments/simple_detail", locals: {attachment: attachment}
+  end
 end