public async Task Add(Channel channel)
{
IMongoCollection <Channel> collection = _discordRepository.GetChannelCollection();
IFindFluent <Channel, Channel> entry = _discordRepository.GetChannelEntry(collection, channel);
if (!entry.Any())
{
try
{
await collection.InsertOneAsync(channel);
}
catch (Exception e)
{
throw new MongoStoreException($"fatal error happened when adding channel data to mongodb", e);
}
}
}
bool IQuery <T> .Exist()
{
IFindFluent <T, T> finder = null;
var collection = _db.GetCollection <T>(typeof(T).Name);
if (whereExp != null)
{
finder = collection.Find <T>(whereExp);
}
else
{
FilterDefinition <T> filter = FilterDefinition <T> .Empty;
finder = collection.Find <T>(filter);
}
return(finder.Any());
}
/// <summary>
/// 判断是否存在符合条件的数据
/// </summary>
/// <param name="collName">表名</param>
/// <param name="filter">条件</param>
/// <returns></returns>
public bool Any(String collName, FilterDefinition <BsonDocument> filter)
{
IFindFluent <BsonDocument, BsonDocument> find = Database.GetCollection <BsonDocument>(collName).Find(filter);
return(find.Any());
}
/// <summary>
/// 判断是否存在符合条件的数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="collName">表名</param>
/// <param name="filter">条件</param>
/// <returns></returns>
public bool Any <T>(String collName, FilterDefinition <T> filter)
{
IFindFluent <T, T> find = Database.GetCollection <T>(collName).Find(filter);
return(find.Any());
}