新增：返回是否有合并请求字段

app/models/project.rb

@@ -462,6 +462,15 @@ class Project < ApplicationRecord
     EduSetting.get("open_portrait_projects").present? ? EduSetting.get("open_portrait_projects").split(",").include?(self.id.to_s) : false
   end
 
+  def has_pull_request(branch_name)
+    return true if self.pull_requests.opening.where(head: branch_name).present? || self.pull_requests.opening.where(base: branch_name).present? 
+    if self.forked_from_project_id.present? 
+      return true if self.fork_project.pull_requests.opening.where(head: branch_name).present? || self.fork_project.pull_requests.opening.where(base: branch_name).present?
+    end
+
+    return false
+  end
+
   def self.mindspore_contributors 
     cache_result = $redis_cache.get("ProjectMindsporeContributors")
     if cache_result.nil? 

app/views/api/v1/projects/branches/index.json.jbuilder

@@ -1,5 +1,5 @@
 json.total_count @result_object[:total_data].to_i 
 json.branches @result_object[:data].each do |branch| 
   json.partial! "api/v1/projects/branches/simple_gitea_detail", branch: branch, default_branch: @result_object[:default_branch]
-
+  json.has_pull_request @project.has_pull_request(branch['name'])
 end