|
| 1 | + |
| 2 | +using System.Data; |
| 3 | + |
| 4 | +namespace QMap.Core.Dialects |
| 5 | +{ |
| 6 | + public class SqlDialectBase : ISqlDialect |
| 7 | + { |
| 8 | + public string ParameterName { get => "@"; set => throw new NotImplementedException(); } |
| 9 | + public string Quotes { get => "'"; set => throw new NotImplementedException(); } |
| 10 | + |
| 11 | + IQMapConnection connection { get; set; } |
| 12 | + |
| 13 | + protected List<Type> _mappingTypes = new() |
| 14 | + { |
| 15 | + typeof(string), |
| 16 | + typeof(DateTime) |
| 17 | + }; |
| 18 | + |
| 19 | + public virtual string? Map(object? obj) |
| 20 | + { |
| 21 | + return obj switch |
| 22 | + { |
| 23 | + DateTime dateTimeObj => $"{dateTimeObj.Year}{dateTimeObj.Month}{dateTimeObj.Month}", |
| 24 | + string strObject => $"{Quotes}{strObject}{Quotes}", |
| 25 | + int intObj => intObj.ToString(), |
| 26 | + bool boolObj => boolObj.ToString(), |
| 27 | + null => null, |
| 28 | + _ => throw new InvalidOperationException($"Cant map type for {obj.GetType()}") |
| 29 | + }; |
| 30 | + } |
| 31 | + |
| 32 | + public bool RequireMapping(object obj) |
| 33 | + { |
| 34 | + var t = obj.GetType(); |
| 35 | + return _mappingTypes.Contains(t); |
| 36 | + } |
| 37 | + |
| 38 | + public virtual IDbDataParameter BuildParameter(ref IDbCommand dbCommand, string name, object value, params object[] options) |
| 39 | + { |
| 40 | + var parameter = dbCommand.CreateParameter(); |
| 41 | + |
| 42 | + parameter.ParameterName = name; |
| 43 | + parameter.Value = value; |
| 44 | + |
| 45 | + return parameter; |
| 46 | + } |
| 47 | + |
| 48 | + public virtual IDbCommand BuildParameters(IDbCommand dbCommand, Dictionary<string, object> namedParameters) |
| 49 | + { |
| 50 | + IDbCommand parametrizedCommand = dbCommand; |
| 51 | + |
| 52 | + foreach (var parameterName in namedParameters.Keys) |
| 53 | + { |
| 54 | + var parameter = BuildParameter(ref dbCommand, parameterName, null); |
| 55 | + |
| 56 | + parameter = AssignValueWithType(ref parameter); |
| 57 | + } |
| 58 | + |
| 59 | + return dbCommand; |
| 60 | + } |
| 61 | + |
| 62 | + /// <summary> |
| 63 | + /// Base parameters type to DBType mapping |
| 64 | + /// </summary> |
| 65 | + /// <param name="parameter"></param> |
| 66 | + /// <returns></returns> |
| 67 | + /// <exception cref="InvalidOperationException"></exception> |
| 68 | + protected virtual IDbDataParameter AssignValueWithType(ref IDbDataParameter parameter) |
| 69 | + { |
| 70 | + var typedParam = parameter.Value switch |
| 71 | + { |
| 72 | + DateTime dateTimeObj => parameter.DbType = DbType.DateTime, |
| 73 | + string strObject => parameter.DbType = DbType.String, |
| 74 | + Int16 => parameter.DbType = DbType.Int16, |
| 75 | + Int32 => parameter.DbType = DbType.Int32, |
| 76 | + Int64 => parameter.DbType = DbType.Int64, |
| 77 | + Decimal => parameter.DbType = DbType.Decimal, |
| 78 | + float => parameter.DbType = DbType.Double, |
| 79 | + double => parameter.DbType = DbType.Double, |
| 80 | + Guid => parameter.DbType = DbType.Guid, |
| 81 | + _ => throw new NotImplementedException() |
| 82 | + }; |
| 83 | + |
| 84 | + parameter.DbType = typedParam; |
| 85 | + |
| 86 | + return parameter; |
| 87 | + } |
| 88 | + } |
| 89 | +} |
0 commit comments