更改：解绑操作放在回调里

app/models/sync_repository.rb

@@ -24,5 +24,12 @@ class SyncRepository < ApplicationRecord
   belongs_to :project 
   has_many :sync_repository_branches, dependent: :destroy
 
+  before_destroy :unbind_reposyncer
+
   validates :repo_name, uniqueness: { message: "已存在" }
+
+  def unbind_reposyncer
+    Reposync::DeleteRepoService.call(self.repo_name)
+  end
+  
 end