protected static string Function(FuncEnum func)
{
switch (func)
{
case FuncEnum.None:
return("");
case FuncEnum.Column:
return("");
case FuncEnum.CharLength:
return(" char_length");
case FuncEnum.DateFormat:
return(" date_format");
case FuncEnum.Trim:
return(" trim");
case FuncEnum.LTrim:
return(" ltrim");
case FuncEnum.RTrim:
return(" rtrim");
case FuncEnum.In:
return(" in ");
case FuncEnum.NotIn:
return(" not in ");
}
return(" ");
}
private bool IsHavePower(IList<EmpModFunc> empModFuncs, Controller serviceBase, FuncEnum funcName)
{
bool retVal = false;
string cls = serviceBase.GetType().FullName;
if (empModFuncs != null)
{
foreach (EmpModFunc empModFunc in empModFuncs)
{
//查找用户是否存在类的权限
if (empModFunc.ModFunc.Cls.Equals(cls))
{
if (empModFunc.FuncNames == null)
{
empModFunc.FuncNames = "";
}
//把函数枚举转为字符串形式,如"|Add|"
string funcNameStr = "|" + funcName + "|";
//查找函数权限
int find = empModFunc.FuncNames.IndexOf(funcNameStr);
if (find > -1)
{
retVal = true;
break;
}
}
}
}
return retVal;
}
//унарные операторы
IOperand UnoOperand(IOperand a, FuncEnum operand)
{
IOperand value;
switch (operand)
{
case FuncEnum.Nun:
value = a;
break;
case FuncEnum.Sin:
value = new Sin(a);
break;
case FuncEnum.Cos:
value = new Cos(a);
break;
case FuncEnum.Log:
value = new Ln(a);
break;
case FuncEnum.Min:
value = new UnoMin(a);
break;
default:
throw new Exception("Некорректная запись");
}
return(value);
}
protected static void Function(FuncEnum func, StringBuilder sb)
{
switch (func)
{
case FuncEnum.None:
return;
case FuncEnum.CharLength:
sb.Append(" char_length");
return;
case FuncEnum.DateFormat:
sb.Append(" date_format");
return;
case FuncEnum.Trim:
sb.Append(" trim");
return;
case FuncEnum.LTrim:
sb.Append(" ltrim");
return;
case FuncEnum.RTrim:
sb.Append(" rtrim");
return;
case FuncEnum.In:
sb.Append(" in ");
return;
case FuncEnum.NotIn:
sb.Append(" not in ");
return;
case FuncEnum.Count:
sb.Append(" count");
return;
case FuncEnum.Sum:
sb.Append(" sum");
return;
default:
throw new Exception($"{XConfig.EC._008} - [[{func}]] 不能解析!!!");
}
}
//определение функции
private void FindFunc(ref IValuesAndLink <char> nodeValue, out FuncEnum funcValue)
{
funcValue = FuncEnum.Nun;
var strFunc = "";
while (nodeValue != null && !NumbersPredicate(nodeValue.Value) && nodeValue.Value != UnoMinus && nodeValue.Value != OpenBracket && nodeValue.Value != CharVariable)
{
strFunc += nodeValue.Value;
nodeValue = nodeValue.Next;
}
switch (strFunc)
{
case "sin":
{
funcValue = FuncEnum.Sin;
break;
}
case "cos":
{
funcValue = FuncEnum.Cos;
break;
}
case "log":
{
funcValue = FuncEnum.Log;
break;
}
default:
{
if (strFunc.Length > 0)
{
throw new Exception("Введён неверный оператор");
}
break;
}
}
}
internal protected static void Function(FuncEnum func, StringBuilder sb, Context dc)
{
switch (func)
{
case FuncEnum.None:
return;
case FuncEnum.CharLength:
Spacing(sb); sb.Append("char_length");
return;
case FuncEnum.ToString_CS_DateTime_Format:
Spacing(sb); sb.Append("date_format");
return;
case FuncEnum.Trim:
Spacing(sb); sb.Append("trim");
return;
case FuncEnum.LTrim:
Spacing(sb); sb.Append("ltrim");
return;
case FuncEnum.RTrim:
Spacing(sb); sb.Append("rtrim");
return;
case FuncEnum.Count:
Spacing(sb); sb.Append("count");
return;
case FuncEnum.Sum:
case FuncEnum.SumNullable:
Spacing(sb); sb.Append("sum");
return;
default:
throw XConfig.EC.Exception(XConfig.EC._008, func.ToString());
}
}
private bool IsHavePower(IList <EmpModFunc> empModFuncs, Controller serviceBase, FuncEnum funcName)
{
bool retVal = false;
string cls = serviceBase.GetType().FullName;
if (empModFuncs != null)
{
foreach (EmpModFunc empModFunc in empModFuncs)
{
//查找用户是否存在类的权限
if (empModFunc.ModFunc.Cls.Equals(cls))
{
if (empModFunc.FuncNames == null)
{
empModFunc.FuncNames = "";
}
//把函数枚举转为字符串形式,如"|Add|"
string funcNameStr = "|" + funcName + "|";
//查找函数权限
int find = empModFunc.FuncNames.IndexOf(funcNameStr);
if (find > -1)
{
retVal = true;
break;
}
}
}
}
return(retVal);
}
internal ColumnParam GetKey(Expression bodyL, FuncEnum func, CompareXEnum compareX, string format = "")
{
if (bodyL.NodeType == ExpressionType.MemberAccess)
{
var leftBody = bodyL as MemberExpression;
var prop = default(PropertyInfo);
//
var mType = default(Type);
var alias = GetAlias(leftBody);
if (func == FuncEnum.CharLength ||
func == FuncEnum.ToString_CS_DateTime_Format)
{
var exp = leftBody.Expression;
if (exp is MemberExpression)
{
var clMemExpr = exp as MemberExpression;
mType = clMemExpr.Expression.Type;
prop = mType.GetProperty(clMemExpr.Member.Name);
}
else if (exp is ParameterExpression)
{
mType = leftBody.Expression.Type;
prop = mType.GetProperty(leftBody.Member.Name);
}
else
{
throw XConfig.EC.Exception(XConfig.EC._005, bodyL.ToString());
}
}
else
{
mType = leftBody.Expression.Type;
prop = mType.GetProperty(leftBody.Member.Name);
}
//
var type = prop.PropertyType;
var tbm = default(TableModelCache);
try
{
tbm = DC.XC.GetTableModel(mType);
}
catch (Exception ex)
{
if (ex.Message.Contains("004") &&
ex.Message.Contains("[XTable]"))
{
throw XConfig.EC.Exception(XConfig.EC._094, $"表达式 -- {bodyL.ToString()} -- 不能正确解析！");
}
}
var attr = tbm.PCA.FirstOrDefault(it => prop.Name.Equals(it.PropName, StringComparison.OrdinalIgnoreCase)).ColAttr;
return(new ColumnParam
{
Prop = prop.Name,
Key = attr.Name,
Alias = alias,
ValType = type,
TbMType = mType,
Format = format
});
}
else if (bodyL.NodeType == ExpressionType.Convert)
{
var exp = bodyL as UnaryExpression;
var opMem = exp.Operand;
return(GetKey(opMem, func, compareX));
}
else if (bodyL.NodeType == ExpressionType.Call)
{
var mcExpr = bodyL as MethodCallExpression;
if (func == FuncEnum.Trim ||
func == FuncEnum.LTrim ||
func == FuncEnum.RTrim)
{
var mem = mcExpr.Object;
return(GetKey(mem, func, compareX));
}
else if (compareX == CompareXEnum.In)
{
var mem = mcExpr.Arguments[0];
return(GetKey(mem, func, compareX));
}
else if (func == FuncEnum.ToString_CS_DateTime_Format)
{
var mem = mcExpr.Object;
var val = DC.VH.ValueProcess(mcExpr.Arguments[0], XConfig.CSTC.String);
return(GetKey(mem, func, compareX, val.Val.ToString()));
}
else if (func == FuncEnum.ToString_CS)
{
var mem = mcExpr.Object;
return(GetKey(mem, func, compareX));
}
else
{
throw XConfig.EC.Exception(XConfig.EC._018, $"{bodyL.NodeType}-{func}");
}
}
else
{
throw XConfig.EC.Exception(XConfig.EC._017, bodyL.NodeType.ToString());
}
}
private (string key, string alias, Type valType, string classFullName, string format) GetKey(Expression bodyL, FuncEnum func, string format = "")
{
if (bodyL.NodeType == ExpressionType.Convert)
{
var exp = bodyL as UnaryExpression;
var opMem = exp.Operand;
return(GetKey(opMem, func));
}
else if (bodyL.NodeType == ExpressionType.MemberAccess)
{
var leftBody = bodyL as MemberExpression;
var info = default(PropertyInfo);
//
var mType = default(Type);
var alias = GetAlias(leftBody);
if (func == FuncEnum.CharLength ||
func == FuncEnum.DateFormat)
{
var exp = leftBody.Expression;
if (exp is MemberExpression)
{
var clMemExpr = exp as MemberExpression;
mType = clMemExpr.Expression.Type;
info = mType.GetProperty(clMemExpr.Member.Name);
}
else if (exp is ParameterExpression)
{
mType = leftBody.Expression.Type;
info = mType.GetProperty(leftBody.Member.Name);
}
else
{
throw new Exception($"{XConfig.EC._005} -- [[{bodyL.ToString()}]] 不能解析!!!");
}
}
else
{
mType = leftBody.Expression.Type;
info = mType.GetProperty(leftBody.Member.Name);
}
//
var type = info.PropertyType;
var attr = DC.SC.GetXColumnAttribute(info, DC.SC.GetAttrKey(XConfig.XColumnFullName, info.Name, mType.FullName));
var field = string.Empty;
if (attr != null)
{
field = attr.Name;
}
else
{
field = info.Name;
}
//
return(field, alias, type, mType.FullName, format);
}
else if (bodyL.NodeType == ExpressionType.Call)
{
var mcExpr = bodyL as MethodCallExpression;
if (func == FuncEnum.Trim ||
func == FuncEnum.LTrim ||
func == FuncEnum.RTrim)
{
var mem = mcExpr.Object;
return(GetKey(mem, func));
}
else if (func == FuncEnum.In)
{
var mem = mcExpr.Arguments[0];
return(GetKey(mem, func));
}
else if (func == FuncEnum.DateFormat)
{
var mem = mcExpr.Object;
var val = DC.VH.ValueProcess(mcExpr.Arguments[0], XConfig.TC.String);
return(GetKey(mem, func, val.val.ToString()));
}
}
return(default(string), default(string), default(Type), default(string), default(string));
}
