我有以下代码,它是使用 MongoDb 2.0 c# 驱动程序实现的。但我需要访问将插入的 Profile
的 MailLists
集合。我已经在构造函数中使用 p
编写了预期的解决方案,但是如何通过多个操作来实现它?
IMongoCollection<Profile> dbCollection = DetermineCollectionName<Profile>();
var filter = Builders<Profile>.Filter.In(x => x.ID, profiles.Select(x => x.ID));
var updateMl = Builders<Profile>.Update.AddToSet(p => p.MailLists, new Profile2MailList
{
MailListId = maillistId,
Status = p.MailLists.MergeMailListStatuses(),
SubscriptionDate = DateTime.UtcNow
});
dbCollection.UpdateManyAsync(filter, updateMl, new UpdateOptions { IsUpsert = true });
最佳答案
我找到了以下解决方案:
IMongoCollection<Profile> dbCollection = DetermineCollectionName<Profile>();
var filter = Builders<Profile>.Filter.In(x => x.ID, profiles.Select(x => x.ID));
var profile2maillists = new List<Profile2MailList>();
foreach(var profile in profiles)
{
profile2maillists.Add(
new Profile2MailList
{
MailListId = maillistId,
Status = profile.MailLists.MergeMailListStatuses(),
SubscriptionDate = DateTime.UtcNow
});
}
var updateMl = Builders<Profile>.Update.AddToSetEach(p => p.MailLists, profile2maillists);
dbCollection.UpdateManyAsync(filter, updateMl, new UpdateOptions { IsUpsert = true });
关于c# - MongoDb c# 2.0 驱动程序 AddToSet 方法,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31877918/