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如何将多行插入EF查找表而不会收到此错误:New transaction is not allowed because there are other threads running in the session
?实体框架4 CTP 5 POCO - 将多行插入查找表?
我有一个PostTags查找表,其中我有很多标签可以从一个帖子,这是我目前有我的更新方法,错误似乎来自foreach
循环插入标签(我正在使用在这个岗位工作单元,POCO的,EF 4 cpt5存储库模式 - Entity Framework 4 CTP 4/CTP 5 Generic Repository Pattern and Unit Testable):
if (ModelState.IsValid)
{
post.FriendlyUrl = Utils.ToFriendlyUrl(post.PostedDate.ToString("yyyy/MM/dd") + "/" + Utils.RemoveAccents(post.Title));
var tags = post.TagsString.TrimEnd(' ', ',').Split(',').ToList();
var updatePost = Mapper.Map<PostModel, Post>(post);
var postTags = new List<int>();
foreach (var tag in tags)
{
postTags.Add(_tag.CheckExistingTag(tag.Trim()));
}
_post.UpdatePost(updatePost);
_unitOfWork.Commit();
// Remove all existing tags associated with this post
_postTag.RemoveAllTagsInPost(updatePost.Id);
// Insert to the PostTagLookup table the new Tags that associates with this Post
foreach (var tagId in postTags)
{
var newPostTag = new PostTagLookup { PostId = updatePost.Id, TagId = tagId };
_postTag.Add(newPostTag);
_unitOfWork.Commit();
}
}
感谢。
保罗嗨,我是有问题多到许多与关系EF,所以我决定去查找表。这里是我关于多对多以及我的问题的原始问题:http://stackoverflow.com/questions/4571188/entity-framework-4-many-to-many-insertion和http://stackoverflow.com/questions/4589258/entity-framework-4-ctp-5-poco-many-to-many-lookup-table。 – Saxman 2011-01-30 17:11:04