CryptoCalc/DBInteraction.cs

using Dapper;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SQLite;
using System.Diagnostics;
using System.Linq;

namespace CryptoCalc
{
    public class DBInteraction
    {
        public static void SaveData<T>(ref T data) where T : DBClasses
        {
            if (data is null)
            {
                throw new ArgumentNullException(nameof(data));
            }

            using IDbConnection cnn = new SQLiteConnection(Util.GetConnectionString(data.DBTableName));
            cnn.Execute($"insert into {data.DBTableName} {data.DBSaveDataString}", data);
            Debug.WriteLine($"Saved {data.DBTableName} DB data");
        }


        public class GenericDB<T> where T : DBClasses
        {

            public IEnumerable<T> LoadAllData(string tableName)
            {
                if (tableName is null)
                {
                    throw new ArgumentNullException(nameof(tableName));
                }

                using IDbConnection _connection = new SQLiteConnection(Util.GetConnectionString(tableName));
                return _connection.Query<T>($"select * from {tableName}", new DynamicParameters());
            }

            public IEnumerable<T> QueryData(string tableName, string query)
            {
                if (tableName is null)
                {
                    throw new ArgumentNullException(nameof(query));
                }

                using IDbConnection _connection = new SQLiteConnection(Util.GetConnectionString(tableName));
                return _connection.Query<T>($"{query}", new DynamicParameters());
            }
        }
    }
}