change create function for issue controller, add invocation of blockchain related function and add ActiveRecord Rollback operation

app/controllers/issues_controller.rb

@@ -105,6 +105,7 @@ class IssuesController < ApplicationController
     elsif params[:subject].to_s.size > 255
       normal_status(-1, "标题不能超过255个字符")
     else
+      ActiveRecord::Base.transaction do
         issue_params = issue_send_params(params)
 
         @issue = Issue.new(issue_params)
@@ -138,11 +139,21 @@ class IssuesController < ApplicationController
           end
 
           @issue.project_trends.create(user_id: current_user.id, project_id: @project.id, action_type: "create")
+
+          # author: zxh
+          # 调用上链API
+          success_blockchain = push_activity_2_blockchain("issue_create", @issue)
+          if success_blockchain == false
+            normal_status(-1, "创建失败")
+            raise ActiveRecord::Rollback
+          else
             render json: {status: 0, message: "创建成", id: @issue.id}
+          end
         else
           normal_status(-1, "创建失败")
+          raise ActiveRecord::Rollback
+        end
       end
-
     end
 
   end