/// <summary>
/// 进行除法运算
/// </summary>
/// <param name="handle"></param>
/// <returns></returns>
internal static string DoMod(BQLOperatorHandle handle, KeyWordInfomation info)
{
BQLValueItem[] parameters = handle.GetParameters();
BQLValueItem item1 = parameters[0];
BQLValueItem item2 = parameters[1];
string value1 = item1.DisplayValue(info);
string value2 = item2.DisplayValue(info);
return(info.DBInfo.Math.DoMod(new string[] { value1, value2 }));
}
public static BQLOperatorHandle operator /(BQLValueItem handle, object value)
{
BQLValueItem oValue = ToValueItem(value);
UnityDbType(handle, oValue);
BQLOperatorHandle fHandle = new BQLOperatorHandle(FunctionManager.DoDiv, new BQLValueItem[] { handle, oValue });
//fHandle.PriorityLevel = 7;
fHandle.PriorityLevel = OperatorPrecedenceUnit.GetPrecedence("/");
return(fHandle);
}
/// <summary>
/// 进行加法运算
/// </summary>
/// <param name="handle"></param>
/// <returns></returns>
internal static string DoAdd(BQLOperatorHandle fHandle, KeyWordInfomation info)
{
BQLValueItem[] parameters = fHandle.GetParameters();
BQLValueItem item1 = parameters[0];
BQLValueItem item2 = parameters[1];
if (IsStringDBType(item1.ValueDbType) || IsStringDBType(item2.ValueDbType)) //字符串拼合
{
string value1 = item1.DisplayValue(info);
string value2 = item2.DisplayValue(info);
//if(OperatorPrecedenceUnit.LeftNeedBreak(
fHandle.ValueDbType = DbType.String;
return(info.DBInfo.CurrentDbAdapter.ConcatString(value1, value2));
}
else
{
fHandle.ValueDbType = DbType.Double;
}
return(CustomerConnectFunction(fHandle.GetParameters(), "+", info, fHandle.PriorityLevel));
}
/// <summary>
/// 运算符函数
/// </summary>
/// <param name="fHandle">函数信息</param>
/// <param name="connect">连接符号</param>
/// <returns></returns>
private static string OperatorFunction(BQLOperatorHandle fHandle, string connect, KeyWordInfomation info)
{
fHandle.ValueDbType = DbType.Double;
return(CustomerConnectFunction(fHandle.GetParameters(), connect, info, fHandle.PriorityLevel));
}
/// <summary>
/// 进行除法运算
/// </summary>
/// <param name="handle"></param>
/// <returns></returns>
internal static string DoDiv(BQLOperatorHandle handle, KeyWordInfomation info)
{
return(OperatorFunction(handle, "/", info));
}
