public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
object value = null;
try
{
value = ExpressionTool.DynamicInvoke(exp.Arguments[0]);
}
catch
{
Check.Exception(true, ErrorMessage.WhereIFCheck, exp.Arguments[0].ToString());
}
var isWhere = Convert.ToBoolean(value);
if (!Convert.ToBoolean(isWhere))
{
return("WHERE 1=1 ");
}
var argExp = exp.Arguments[1];
var result = "WHERE " + SubTools.GetMethodValue(Context, argExp, ResolveExpressType.WhereMultiple);;
var selfParameterName = Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
return(result);
}
public MemberNewExpressionResolve(ExpressionParameter parameter) : base(parameter)
{
var expression = base.Expression as MemberExpression;
var isLeft = parameter.IsLeft;
object value = null;
value = ExpressionTool.DynamicInvoke(expression);
}
private void MemberLogic(ExpressionParameter parameter, ExpressionParameter baseParameter, ExpressionType nodeType)
{
var memberExpression = (base.Expression as MemberExpression);
var isLogicOperator = ExpressionTool.IsLogicOperator(baseParameter.OperatorValue) || baseParameter.OperatorValue.IsNullOrEmpty();
var isHasValue = isLogicOperator && memberExpression.Member.Name == "HasValue" && memberExpression.Expression != null && memberExpression.NodeType == ExpressionType.MemberAccess;
if (isHasValue)
{
var member = memberExpression.Expression as MemberExpression;
parameter.CommonTempData = CommonTempDataType.Result;
var isConst = member.Expression != null && member.Expression is ConstantExpression;
if (isConst)
{
var paramterValue = ExpressionTool.DynamicInvoke(member);
var paramterName = base.AppendParameter(paramterValue);
var result = this.Context.DbMehtods.HasValue(new MethodCallExpressionModel()
{
Args = new List <MethodCallExpressionArgs>()
{
new MethodCallExpressionArgs()
{
IsMember = false, MemberName = paramterName, MemberValue = paramterValue
}
}
});
this.Context.Result.Append(result);
}
else
{
this.Expression = isConst ? member.Expression : member;
this.Start();
var methodParamter = isConst ? new MethodCallExpressionArgs()
{
IsMember = false
} : new MethodCallExpressionArgs()
{
IsMember = true, MemberName = parameter.CommonTempData, MemberValue = null
};
var result = this.Context.DbMehtods.HasValue(new MethodCallExpressionModel()
{
Args = new List <MethodCallExpressionArgs>()
{
methodParamter
}
});
this.Context.Result.Append(result);
parameter.CommonTempData = null;
}
}
else if (memberExpression.Type == UtilConstants.BoolType && isLogicOperator)
{
Append(parameter, nodeType);
}
else
{
Result(parameter, nodeType);
}
}
private void NewValueType(ExpressionParameter parameter, NewExpression expression)
{
try
{
var value = ExpressionTool.DynamicInvoke(expression);
var isSetTempData = parameter.CommonTempData.HasValue() && parameter.CommonTempData.Equals(CommonTempDataType.Result);
if (isSetTempData)
{
parameter.CommonTempData = value;
}
else
{
AppendValue(parameter, parameter.IsLeft, value);
}
}
catch (Exception ex)
{
Check.Exception(expression.Type == UtilConstants.DateType, "ThrowNotSupportedException {0} ", ex.ToString());
}
}
private void CusMethod(ExpressionParameter parameter, MethodCallExpression express, bool?isLeft)
{
try
{
var constValue = ExpressionTool.DynamicInvoke(express);
parameter.BaseParameter.CommonTempData = constValue;
var parameterName = base.AppendParameter(constValue);
if (parameter.BaseParameter.CommonTempData != null && parameter.BaseParameter.CommonTempData.Equals(CommonTempDataType.Result))
{
this.Context.Result.Append(parameterName);
}
else
{
base.AppendValue(parameter, isLeft, parameterName);
}
}
catch
{
Check.Exception(true, string.Format(ErrorMessage.MethodError, express.Method.Name));
}
}
private void ResolveCallValue(ExpressionParameter parameter, ExpressionParameter baseParameter, MemberExpression expression, bool?isLeft, bool isSetTempData, bool isSingle)
{
try
{
baseParameter.ChildExpression = expression;
string fieldName = string.Empty;
if (isSetTempData)
{
var value = ExpressionTool.DynamicInvoke(expression);
baseParameter.CommonTempData = value;
}
else
{
var value = ExpressionTool.DynamicInvoke(expression);
base.AppendValue(parameter, isLeft, value);
}
}
catch
{
Check.Exception(true, "Not Support {0}", expression.ToString());
}
}
public MethodCallExpressionResolve(ExpressionParameter parameter) : base(parameter)
{
contextIndex = this.Context.Index;
var express = base.Expression as MethodCallExpression;
if (express == null)
{
return;
}
var isLeft = parameter.IsLeft;
string methodName = express.Method.Name;
var isValidNativeMethod = IsValidNativeMethod(express, methodName);
List <MethodCallExpressionArgs> appendArgs = null;
if (MethodTimeMapping.ContainsKey(methodName))
{
appendArgs = new List <MethodCallExpressionArgs>();
var dateType = MethodTimeMapping[methodName];
string paramterName = this.Context.SqlParameterKeyWord + ExpressionConst.Const + this.Context.ParameterIndex;
appendArgs.Add(new MethodCallExpressionArgs()
{
IsMember = false, MemberName = paramterName, MemberValue = dateType
});
this.Context.Parameters.Add(new SugarParameter(paramterName, dateType.ToString()));
this.Context.ParameterIndex++;
methodName = "DateAdd";
isValidNativeMethod = true;
}
else if (methodName == "get_Item")
{
string paramterName = this.Context.SqlParameterKeyWord + ExpressionConst.Const + this.Context.ParameterIndex;
this.Context.Parameters.Add(new SugarParameter(paramterName, ExpressionTool.DynamicInvoke(express)));
this.Context.Result.Append(string.Format(" {0} ", paramterName));
this.Context.ParameterIndex++;
return;
}
else if (methodName == "NewGuid")
{
this.Context.Result.Append(this.Context.DbMehtods.GuidNew());
return;
}
else if (IsSubMethod(express, methodName))
{
//Check.Exception(!(parameter.BaseExpression is BinaryExpression), "Current expressions are not supported");
SubResolve subResolve = new SubResolve(express, this.Context, parameter.OppsiteExpression);
var appendSql = subResolve.GetSql();
if (this.Context.ResolveType.IsIn(ResolveExpressType.SelectMultiple, ResolveExpressType.SelectSingle) || (parameter.BaseParameter != null && parameter.BaseParameter.CommonTempData != null && parameter.BaseParameter.CommonTempData.Equals(CommonTempDataType.Result)))
{
parameter.BaseParameter.CommonTempData = appendSql;
}
else
{
base.AppendValue(parameter, isLeft, appendSql);
}
return;
}
else if (IsIfElse(express, methodName))
{
CaseWhenResolve caseResole = new CaseWhenResolve(express, this.Context, parameter.OppsiteExpression);
var appendSql = caseResole.GetSql();
var isRoot = contextIndex == 2 && parameter.BaseExpression == null;
if (isRoot || (parameter.BaseExpression != null && ExpressionTool.IsLogicOperator(parameter.BaseExpression)))
{
appendSql = appendSql + "=1 ";
}
if (this.Context.ResolveType.IsIn(ResolveExpressType.SelectMultiple, ResolveExpressType.SelectSingle, ResolveExpressType.Update))
{
parameter.BaseParameter.CommonTempData = appendSql;
}
else
{
base.AppendValue(parameter, isLeft, appendSql);
}
return;
}
if (IsContainsArray(express, methodName, isValidNativeMethod))
{
methodName = "ContainsArray";
isValidNativeMethod = true;
}
if (isValidNativeMethod)
{
NativeExtensionMethod(parameter, express, isLeft, MethodMapping[methodName], appendArgs);
}
else
{
SqlFuncMethod(parameter, express, isLeft);
}
}
private void Update(MemberInitExpression expression, ExpressionParameter parameter)
{
int i = 0;
foreach (MemberBinding binding in expression.Bindings)
{
++i;
if (binding.BindingType != MemberBindingType.Assignment)
{
throw new NotSupportedException();
}
MemberAssignment memberAssignment = (MemberAssignment)binding;
var type = expression.Type;
var memberName = this.Context.GetDbColumnName(type.Name, memberAssignment.Member.Name);
var item = memberAssignment.Expression;
if ((item is MemberExpression) && ((MemberExpression)item).Expression == null)
{
var paramterValue = ExpressionTool.DynamicInvoke(item);
string parameterName = AppendParameter(paramterValue);
this.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
}
else if (IsNotMember(item))
{
if (base.Context.Result.IsLockCurrentParameter == false)
{
base.Context.Result.CurrentParameter = parameter;
base.Context.Result.IsLockCurrentParameter = true;
parameter.IsAppendTempDate();
base.Expression = item;
base.Expression = (item as UnaryExpression).Operand;
base.Start();
parameter.IsAppendResult();
var result = this.Context.DbMehtods.IIF(new MethodCallExpressionModel()
{
Args = new List <MethodCallExpressionArgs>()
{
new MethodCallExpressionArgs()
{
IsMember = true, MemberName = parameter.CommonTempData.ObjToString() + "=1"
},
new MethodCallExpressionArgs()
{
IsMember = true, MemberName = AppendParameter(0)
},
new MethodCallExpressionArgs()
{
IsMember = true, MemberName = AppendParameter(1)
}
}
});
parameter.Context.Result.Append(base.Context.GetEqString(memberName, result));
base.Context.Result.CurrentParameter = null;
}
}
else if (IsNotParameter(item))
{
try
{
parameter.Context.Result.Append(base.Context.GetEqString(memberName, AppendParameter(ExpressionTool.DynamicInvoke(item).ObjToBool())));
}
catch
{
throw new NotSupportedException(item.ToString());
}
}
else if (IsMethod(item))
{
if (item is UnaryExpression)
{
item = (item as UnaryExpression).Operand;
}
var callMethod = item as MethodCallExpression;
if (MethodTimeMapping.Any(it => it.Key == callMethod.Method.Name) || MethodMapping.Any(it => it.Key == callMethod.Method.Name) || IsExtMethod(callMethod.Method.Name) || IsSubMethod(callMethod) || callMethod.Method.DeclaringType.FullName.StartsWith(UtilConstants.AssemblyName + UtilConstants.Dot))
{
MethodCall(parameter, memberName, item);
}
else
{
var paramterValue = ExpressionTool.DynamicInvoke(item);
string parameterName = AppendParameter(paramterValue);
this.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
}
}
else if (IsConst(item) && IsConvert(item) && UtilMethods.IsNullable(item.Type) && UtilMethods.GetUnderType(item.Type) == UtilConstants.BoolType)
{
item = (item as UnaryExpression).Operand;
parameter.Context.Result.Append(base.Context.GetEqString(memberName, GetNewExpressionValue(item)));
}
else if (IsConst(item))
{
base.Expression = item;
base.Start();
string parameterName = this.Context.SqlParameterKeyWord + ExpressionConst.Const + this.Context.ParameterIndex;
parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
this.Context.Parameters.Add(new SugarParameter(parameterName, parameter.CommonTempData));
this.Context.ParameterIndex++;
}
else if (item is MemberExpression)
{
if (base.Context.Result.IsLockCurrentParameter == false)
{
base.Context.Result.CurrentParameter = parameter;
base.Context.Result.IsLockCurrentParameter = true;
parameter.IsAppendTempDate();
base.Expression = item;
base.Start();
parameter.IsAppendResult();
parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameter.CommonTempData.ObjToString()));
base.Context.Result.CurrentParameter = null;
}
}
else if (item is BinaryExpression)
{
var result = GetNewExpressionValue(item);
this.Context.Result.Append(base.Context.GetEqString(memberName, result));
}
else if (item is MemberInitExpression)
{
try
{
var value = ExpressionTool.DynamicInvoke(item);
var parameterName = AppendParameter(value);
parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
}
catch (Exception ex)
{
throw new NotSupportedException("Not Supported " + item.ToString() + " " + ex.Message);
}
}
else if (item is NewExpression)
{
try
{
var value = ExpressionTool.DynamicInvoke(item);
var parameterName = AppendParameter(value);
parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
}
catch (Exception ex)
{
throw new NotSupportedException("Not Supported " + item.ToString() + " " + ex.Message);
}
}
}
}
public NewArrayExpessionResolve(ExpressionParameter parameter) : base(parameter)
{
var expression = (NewArrayExpression)base.Expression;
switch (base.Context.ResolveType)
{
case ResolveExpressType.WhereSingle:
case ResolveExpressType.WhereMultiple:
case ResolveExpressType.SelectSingle:
case ResolveExpressType.SelectMultiple:
case ResolveExpressType.FieldSingle:
case ResolveExpressType.FieldMultiple:
try
{
var value = ExpressionTool.DynamicInvoke(expression);
var isLeft = parameter.IsLeft;
var baseParameter = parameter.BaseParameter;
var isSetTempData = baseParameter.CommonTempData.HasValue() && baseParameter.CommonTempData.Equals(CommonTempDataType.Result);
if (isSetTempData)
{
baseParameter.CommonTempData = value;
}
else
{
var parentIsBinary = parameter.BaseParameter.CurrentExpression is BinaryExpression;
var parentIsRoot = parameter.BaseParameter.CurrentExpression is LambdaExpression;
var isBool = value != null && value.GetType() == UtilConstants.BoolType;
if (parentIsRoot && isBool)
{
this.Context.Result.Append(value.ObjToBool() ? this.Context.DbMehtods.True() : this.Context.DbMehtods.False());
break;
}
if (parentIsBinary && isBool)
{
var isLogicOperator =
parameter.BaseExpression.NodeType == ExpressionType.And ||
parameter.BaseExpression.NodeType == ExpressionType.AndAlso ||
parameter.BaseExpression.NodeType == ExpressionType.Or ||
parameter.BaseExpression.NodeType == ExpressionType.OrElse;
if (isLogicOperator)
{
AppendMember(parameter, isLeft, (value.ObjToBool() ? this.Context.DbMehtods.True() : this.Context.DbMehtods.False()));
break;
}
}
if (value == null && parentIsBinary)
{
parameter.BaseParameter.ValueIsNull = true;
value = this.Context.DbMehtods.Null();
}
AppendValue(parameter, isLeft, value);
}
}
catch (Exception)
{
Check.ThrowNotSupportedException("NewArrayExpression");
}
break;
case ResolveExpressType.ArraySingle:
foreach (var item in expression.Expressions)
{
base.Expression = item;
base.Start();
}
break;
case ResolveExpressType.Join:
base.Context.ResolveType = ResolveExpressType.WhereMultiple;
int i = 0;
foreach (var item in expression.Expressions)
{
if (item is UnaryExpression)
{
base.Expression = item;
base.Start();
if (parameter.CommonTempData is JoinType)
{
if (i > 0)
{
base.Context.Result.Append("," + parameter.CommonTempData.ObjToString().Replace(",", UtilConstants.ReplaceCommaKey) + ",");
}
else
{
base.Context.Result.Append(parameter.CommonTempData.ObjToString().Replace(",", UtilConstants.ReplaceCommaKey) + ",");
}
++i;
}
}
}
break;
default:
break;
}
}
