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update IQueryable provider

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This commit is contained in:
28810
2020-04-10 11:58:47 +08:00
parent a958a64bd0
commit f9566af7d1
3 changed files with 166 additions and 9 deletions
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17
Extensions/FreeSql.Extensions.Linq/QueryableProvider.cs
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@ -81,7 +81,7 @@ namespace FreeSql.Extensions.Linq
{
callExp = stackCallExps.Pop();
TResult throwCallExp(string message) => throw new Exception($"FreeSql Queryable 解析出错，执行的方法 {callExp.Method.Name} {message}");
if (callExp.Method.DeclaringType != typeof(Queryable)) return throwCallExp($"必须属于 System.Linq.Enumerable");
if (callExp.Method.DeclaringType != typeof(Queryable)) return throwCallExp($"必须属于 System.Linq.Queryable");
TResult tplMaxMinAvgSum(string method) {
if (callExp.Arguments.Count == 2)
@ -105,7 +105,7 @@ namespace FreeSql.Extensions.Linq
switch (callExp.Method.Name)
{
case "Any":
if (callExp.Arguments.Count == 2) _select.Where((Expression<Func<TSource, bool>>)(callExp.Arguments[1] as UnaryExpression)?.Operand);
if (callExp.Arguments.Count == 2) _select.InternalWhere(callExp.Arguments[1]);
return (TResult)(object)_select.Any();
case "AsQueryable":
break;
@ -120,14 +120,14 @@ namespace FreeSql.Extensions.Linq
case "Contains":
if (callExp.Arguments.Count == 2)
{
var dywhere = (callExp.Arguments[1] as ConstantExpression)?.Value as TSource;
var dywhere = callExp.Arguments[1].GetConstExprValue();
if (dywhere == null) return throwCallExp($" 参数值不能为 null");
_select.WhereDynamic(dywhere);
return (TResult)(object)_select.Any();
}
return throwCallExp($" 不支持 {callExp.Arguments.Count}个参数的方法");
case "Count":
if (callExp.Arguments.Count == 2) _select.Where((Expression<Func<TSource, bool>>)(callExp.Arguments[1] as UnaryExpression)?.Operand);
if (callExp.Arguments.Count == 2) _select.InternalWhere(callExp.Arguments[1]);
return (TResult)Utils.GetDataReaderValue(typeof(TResult), _select.Count());
case "Distinct":
@ -140,7 +140,7 @@ namespace FreeSql.Extensions.Linq
case "ElementAt":
case "ElementAtOrDefault":
_select.Offset((int)(callExp.Arguments[1] as ConstantExpression)?.Value);
_select.Offset((int)callExp.Arguments[1].GetConstExprValue());
_select.Limit(1);
isfirst = true;
break;
@ -148,7 +148,7 @@ namespace FreeSql.Extensions.Linq
case "FirstOrDefault":
case "Single":
case "SingleOrDefault":
if (callExp.Arguments.Count == 2) _select.Where((Expression<Func<TSource, bool>>)(callExp.Arguments[1] as UnaryExpression)?.Operand);
if (callExp.Arguments.Count == 2) _select.InternalWhere(callExp.Arguments[1]);
_select.Limit(1);
isfirst = true;
break;
@ -177,10 +177,10 @@ namespace FreeSql.Extensions.Linq
return throwCallExp(" 不支持");
case "Skip":
_select.Offset((int)(callExp.Arguments[1] as ConstantExpression)?.Value);
_select.Offset((int)callExp.Arguments[1].GetConstExprValue());
break;
case "Take":
_select.Limit((int)(callExp.Arguments[1] as ConstantExpression)?.Value);
_select.Limit((int)callExp.Arguments[1].GetConstExprValue());
break;
case "ToList":
@ -188,7 +188,6 @@ namespace FreeSql.Extensions.Linq
return (TResult)(object)_select.ToList();
return throwCallExp(" 不支持");
case "Select":
var selectParam = (callExp.Arguments[1] as UnaryExpression)?.Operand as LambdaExpression;
if (selectParam.Parameters.Count == 1)