old_flsystem/类库/SqlSugar/ExpressionsToSql/ResolveItems/NewArrayExpessionResolve.cs

106 lines
4.9 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
namespace SqlSugar
{
public class NewArrayExpessionResolve : BaseResolve
{
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;
}
}
}
}