fix admins portal image setting

app/libs/util/file_manage.rb

@@ -22,12 +22,19 @@ module Util::FileManage
     File.exist?(disk_filename(source.class, source.id))
   end
 
-  def disk_file_url(source_type, source_id)
-    File.join('/images', relative_path, "#{source_type}", "#{source_id}")
+  def disk_file_url(source_type, source_id, suffix = nil)
+    t = ctime(source_type, source_id)
+    File.join('/images', relative_path, "#{source_type}", "#{source_id}#{suffix}") + "?t=#{t}"
   end
 
   def source_disk_file_url(source)
-    File.join('/images', relative_path, "#{source.class}", "#{source.id}")
+    disk_file_url(source.class, source.id)
+  end
+
+  def ctime(source_type, source_id)
+    return nil unless exist?(source_type, source_id)
+
+    File.ctime(disk_filename(source_type, source_id)).to_i
   end
 
   def disk_auth_filename(source_type, source_id, type)
@@ -39,7 +46,7 @@ module Util::FileManage
   end
 
   def auth_file_url(source_type, source_id, type)
-    File.join('/images', relative_path, source_type, "#{source_id}#{type}")
+    disk_file_url(source_type, source_id, type)
   end
 
   def real_name_auth_file_url(source_id)

app/services/admins/drag_portal_image_service.rb

@@ -14,7 +14,7 @@ class Admins::DragPortalImageService < ApplicationService
     images = PortalImage.all
 
     ActiveRecord::Base.transaction do
-      if after.blank? # 移动至末尾
+      if after.blank? || move.id == after.id # 移动至末尾
         total = images.count
 
         images.where('position > ?', move.position).update_all('position = position - 1')
@@ -26,8 +26,8 @@ class Admins::DragPortalImageService < ApplicationService
         images.where('position >= ? AND position < ?', after.position, move.position).update_all('position = position + 1')
         move.update!(position: after.position)
       else # 后移
-        images.where('position > ? AND position <= ?', move.position, after.position).update_all('position = position - 1')
-        move.update!(position: after.position)
+        images.where('position > ? AND position < ?', move.position, after.position).update_all('position = position - 1')
+        move.update!(position: after.position - 1)
       end
     end
   end