/// <summary>
/// 判断是否多对一
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsManyOne(Member source)
{
DataTypeInfos info = EntityFieldBase.GetTypeInfo(source);
return(info == null);
}
/// <summary>
/// 根据类型名获取信息
/// </summary>
/// <param name="typeName"></param>
/// <returns></returns>
public static DataTypeInfos GetTypeInfo(string typeName)
{
string key = typeName.Trim().Trim('?');
DataTypeInfos ret = null;
if (_dicTypeInfos.TryGetValue(key, out ret))
{
return(ret);
}
return(null);
}
/// <summary>
/// 获取字段的配置信息
/// </summary>
/// <param name="fInfo"></param>
private void GetEntityParamInfo(ClrField fInfo)
{
_propertyName = ToPascalName(FieldName);
_paramName = FieldName.Trim('_');
DataTypeInfos info = EntityFieldBase.GetTypeInfo(fInfo);
if (info != null)
{
_dbType = info.DbTypes[0].ToString();
_length = info.DbLength;
}
}
/// <summary>
/// 获取数值默认类型
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static string GetMemberVariableDefaultValue(string typeName)
{
DataTypeInfos info = GetTypeInfo(typeName);
if (info != null)
{
if (typeName.Trim().LastIndexOf('?') >= 0)
{
return(info.DefaultNullValue);
}
return(info.DefaultValue);
}
return("null");
}
/// <summary>
/// 判断类型是否为非空
/// </summary>
/// <param name="typeName"></param>
/// <returns></returns>
public static bool IsNullProperty(string typeName)
{
DataTypeInfos info = GetTypeInfo(typeName);
if (info != null)
{
if (typeName.Trim().LastIndexOf('?') >= 0)
{
return(true);
}
else
{
return(info.DefaultValue == info.DefaultNullValue);
}
}
return(true);
}
/// <summary>
/// 初始化类型信息
/// </summary>
/// <returns></returns>
private static Dictionary <string, DataTypeInfos> InitTypeInfos()
{
Dictionary <string, DataTypeInfos> dic = new Dictionary <string, DataTypeInfos>();
DataTypeInfos info = new DataTypeInfos("Guid", new DbType[] { DbType.Guid }, "DefaultValue.DefaultGuidValue", "null", 0);
dic["Guid"] = info;
info = new DataTypeInfos("float", new DbType[] { DbType.Single, DbType.Currency, DbType.Decimal, DbType.Double },
"DefaultValue.DefaultFloat", "DefaultValue.DefaultFloatValue", 0);
dic["float"] = info;
//info = new DataTypeInfos("Single", new DbType[] { DbType.Single, DbType.Currency, DbType.Decimal }, "DefaultValue.DefaultFloatValue", false);
dic["Single"] = info;
info = new DataTypeInfos("bool", new DbType[] {
DbType.Boolean, DbType.Int16, DbType.Int32,
DbType.Int64, DbType.SByte, DbType.UInt16,
DbType.UInt32, DbType.UInt64
},
"false", "DefaultValue.DefaultBooleanValue", 0);
dic["bool"] = info;
//info = new DataTypeInfos("Boolean", "Boolean", "DefaultValue.DefaultBooleanValue", false);
dic["Boolean"] = info;
info = new DataTypeInfos("DateTime", new DbType[] { DbType.DateTime, DbType.DateTime2, DbType.DateTimeOffset, DbType.Date, DbType.Time },
"DefaultValue.DefaultDateTimeValue", "null", 0);
dic["DateTime"] = info;
info = new DataTypeInfos("decimal", new DbType[] { DbType.Decimal, DbType.Single, DbType.Currency, DbType.Double },
"DefaultValue.DefaultDecimal", "DefaultValue.DefaultDecimalValue", 0);
dic["decimal"] = info;
dic["Decimal"] = info;
info = new DataTypeInfos("double", new DbType[] { DbType.Double, DbType.Single, DbType.Currency, DbType.Decimal },
"DefaultValue.DefaultDouble", "DefaultValue.DefaultDoubleValue", 0);
dic["double"] = info;
dic["Double"] = info;
info = new DataTypeInfos("short", new DbType[] { DbType.Int16, DbType.SByte },
"DefaultValue.DefaultShort", "DefaultValue.DefaultShortValue", 0);
dic["short"] = info;
dic["Int16"] = info;
info = new DataTypeInfos("int", new DbType[] { DbType.Int32, DbType.Int16, DbType.SByte },
"DefaultValue.DefaultInt", "DefaultValue.DefaultIntValue", 0);
dic["int"] = info;
dic["Int32"] = info;
info = new DataTypeInfos("long", new DbType[] { DbType.Int64, DbType.Int16, DbType.SByte, DbType.Int32 },
"DefaultValue.DefaultLong", "DefaultValue.DefaultLongValue", 0);
dic["long"] = info;
//info = new DataTypeInfos("Int64", "Int64", "DefaultValue.DefaultLongValue", false);
dic["Int64"] = info;
info = new DataTypeInfos("ushort", new DbType[] { DbType.Int16, DbType.SByte },
"ushort.MinValue", "DefaultValue.DefaultUshortValue", 0);
dic["ushort"] = info;
//info = new DataTypeInfos("UInt16", "UInt16", "DefaultValue.DefaultUshortValue", false);
dic["UInt16"] = info;
info = new DataTypeInfos("uint", new DbType[] { DbType.Int64, DbType.Int32, DbType.Int16, DbType.SByte, },
"0", "DefaultValue.DefaultUintValue", 0);
dic["uint"] = info;
dic["UInt32"] = info;
info = new DataTypeInfos("ulong", new DbType[] { DbType.Int64, DbType.Int16, DbType.SByte, DbType.Int32 },
"0", "DefaultValue.DefaultUlongValue", 0);
dic["ulong"] = info;
dic["UInt64"] = info;
info = new DataTypeInfos("string", new DbType[] { DbType.AnsiString, DbType.AnsiStringFixedLength, DbType.String, DbType.StringFixedLength },
"null", "null", 32);
dic["string"] = info;
dic["String"] = info;
info = new DataTypeInfos("byte", new DbType[] { DbType.Byte, DbType.SByte },
"0", "DefaultValue.DefaultByteValue", 0);
dic["byte"] = info;
dic["Byte"] = info;
info = new DataTypeInfos("sbyte", new DbType[] { DbType.Byte, DbType.SByte },
"DefaultValue.DefaultSbyte", "DefaultValue.DefaultSbyteValue", 0);
dic["sbyte"] = info;
dic["SByte"] = info;
info = new DataTypeInfos("byte[]", new DbType[] { DbType.Binary },
"null", "null", 512);
dic["byte[]"] = info;
return(dic);
}
