/// <summary>
/// Gets the parent express value.
/// </summary>
/// <param name="expression">The expression.</param>
/// <returns>A string.</returns>
private string GetParentExpressValue(MemberExpression expression)
{
string memberName = _dbPrivoder.FormatFieldName(expression.Member.Name);
if (expression.Expression is MemberExpression memberExpression)
{
var str = GetParentExpressValue(memberExpression);
return($"{str}.{memberName}");
}
else if (expression.Expression is ParameterExpression parameterExpression)
{
//处理Group类型的问题
var tableKey = parameterExpression.Type.GetHashCode();
if (parameterExpression.Type.Name == typeof(IGrouping <,>).Name)
{
return($"{parameterExpression.Type.Name}.{memberName}");
}
else
{
TableTypeDic.TryAdd(tableKey, parameterExpression.Type);
}
return($"{tableKey}.{memberName}");
}
return("");
}
/// <summary>
/// Gets the parent express value.
/// </summary>
/// <param name="expression">The expression.</param>
/// <returns>A string.</returns>
private string GetParentExpressValue(MemberExpression expression)
{
if (expression.Expression is MemberExpression memberExpression)
{
var str = GetParentExpressValue(memberExpression);
return($"{str}.{expression.Member.Name}");
}
else if (expression.Expression is ParameterExpression parameterExpression)
{
var tableKey = parameterExpression.GetHashCode();
TableTypeDic.TryAdd(tableKey, parameterExpression.Type);
string memberName = _dbPrivoder.FormatFieldName(expression.Member.Name);
var memberStr = isSetNew ? $".{memberName}" : string.Empty;
GroupDic.TryAdd($"{typeof(IGrouping<,>).Name}.{_dbPrivoder.FormatFieldName("Key")}{memberStr}", $"{tableKey}.{memberName}");
return($"{tableKey}.{memberName}");
}
return("");
}
