【MongoDB】MongoHelper

public class MongoHelper
    {
        private static IMongoDatabase GetDb(string constr, string dbName)
        {
            var db = new MongoClient(constr).GetDatabase(dbName);
            return db;
        }

        private static IMongoCollection<T> GetCT<T>(string constr, string dbName, string tableName)
        {
            return GetDb(constr, dbName).GetCollection<T>(tableName);
        }
        public static void Insert<T>(string constr, string dbName,string tableName,T document)
        {
            var collection = GetCT<T>(constr, dbName, tableName);
            collection.InsertOne(document);
        }
        public static void Insert<T>(string constr, string dbName, string tableName, IEnumerable<T> documents)
        {
            var collection = GetCT<T>(constr, dbName, tableName);
            collection.InsertMany(documents);
        }

        public static List<T> Find<T>(string constr, string dbName, string tableName, FilterDefinition<T> filter)
        {
            var collection = GetCT<T>(constr, dbName, tableName);
            return collection.Find<T>(filter).ToList<T>();
        }

        public static List<T> Find<T>(string constr, string dbName, string tableName, FilterDefinition<T> filter,SortDefinition<T> sort)
        {
            var collection = GetCT<T>(constr, dbName, tableName);
            return collection.Find<T>(filter).Sort(sort).ToList<T>();
        }

        public static List<T> Find<T>(string constr, string dbName, string tableName,int pageIndex,int pageSize, FilterDefinition<T> filter)
        {
            var collection = GetCT<T>(constr, dbName, tableName);
            return collection.Find<T>(filter).Skip((pageIndex - 1) * pageSize).Limit(pageSize).ToList<T>();
        }

        public static bool Update<T>(string constr, string dbName, string tableName,FilterDefinition<T> filter,UpdateDefinition<T> update)
        {
            var collection = GetCT<T>(constr, dbName, tableName);
            var result = collection.UpdateMany(filter, update);
            if (result.ModifiedCount > 0)
            {
                return true;
            }
            return false;
        }

        public static bool Delete(string constr, string dbName, string tableName, BsonDocument filter)
        {
            var collection = GetCT<BsonDocument>(constr, dbName, tableName);
            DeleteResult result = collection.DeleteMany(filter);
            if (result != null && result.DeletedCount > 0)
            {
                return true;
            }
            return false;
        }
    }