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Update exp to sql

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sunkaixuan 2022-04-13 20:50:17 +08:00
parent df94ed9363
commit 53e4891182
2 changed files with 79 additions and 3 deletions
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78
Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
View File

@ -25,6 +25,7 @@ namespace SqlSugar
private List<Expression> _preExpressionList = new List<Expression>();
private List<object> _preList = new List<object>();
private List<Expression> _ListCallFunc;
//private Expression[] _expressions;
//private List<T> _list;
//private EntityInfo _entityInfo;
@ -40,7 +41,7 @@ namespace SqlSugar
private void ExecuteByLay(int i, Expression item)
{
_ListCallFunc = GetWhereExpression(ref item);
if (i == 1)
{
ExecuteByLay(item, RootList.Select(it => it as object).ToList(), SelectR1);
@ -88,6 +89,7 @@ namespace SqlSugar
_preList = list.ToList();
}
_preExpressionList.Add(item);
_ListCallFunc = new List<Expression>();
}
private void ExecuteByLay(Expression expression, List<object> list, Func<ISugarQueryable<object>, List<object>> selector)
@ -130,6 +132,23 @@ namespace SqlSugar
}
}
private List<Expression> GetWhereExpression(ref Expression expression)
{
List<Expression> expressions = new List<Expression>();
var isCall = (expression as LambdaExpression).Body is MethodCallExpression;
if (isCall)
{
var newexp = (expression as LambdaExpression).Body;
while (newexp is MethodCallExpression)
{
expressions.Add(newexp);
newexp= (newexp as MethodCallExpression).Arguments[0];
}
expression =LambdaExpression.Lambda(newexp);
}
return expressions;
}
private void ManyToMany(List<object> list, Func<ISugarQueryable<object>, List<object>> selector, EntityInfo listItemEntity, System.Reflection.PropertyInfo navObjectNamePropety, EntityColumnInfo navObjectNameColumnInfo)
{
var bEntity = navObjectNameColumnInfo.PropertyInfo.PropertyType.GetGenericArguments()[0];
@ -159,7 +178,8 @@ namespace SqlSugar
FieldValue = String.Join(",", abids.Select(it => it.Bid).ToArray()),
CSharpTypeName = bColumn.PropertyInfo.PropertyType.Name
}));
var bList = selector(this.Context.Queryable<object>().AS(bEntityInfo.DbTableName).Where(conditionalModels2));
var sql = GetWhereSql();
var bList = selector(this.Context.Queryable<object>().AS(bEntityInfo.DbTableName).Where(conditionalModels2).WhereIF(sql.WhereString.HasValue(),sql.WhereString).OrderByIF(sql.OrderByString.HasValue(),sql.OrderByString));
if (bList.HasValue())
{
foreach (var listItem in list)
@ -222,7 +242,8 @@ namespace SqlSugar
FieldValue = String.Join(",", ids),
CSharpTypeName = listItemPkColumn.PropertyInfo.PropertyType.Name
}));
var navList = selector(this.Context.Queryable<object>().AS(navEntityInfo.DbTableName).Where(conditionalModels));
var sqlObj = GetWhereSql();
var navList = selector(this.Context.Queryable<object>().AS(navEntityInfo.DbTableName).Where(conditionalModels).WhereIF(sqlObj.WhereString.HasValue(),sqlObj.WhereString).OrderByIF(sqlObj.OrderByString.HasValue(),sqlObj.OrderByString));
if (navList.HasValue())
{
foreach (var item in list)
@ -239,5 +260,56 @@ namespace SqlSugar
}
}
}
private SqlInfo GetWhereSql()
{
if (_ListCallFunc == null|| _ListCallFunc.Count==0) return new SqlInfo();
List<string> where = new List<string>();
List<string> oredrBy = new List<string>();
_ListCallFunc.Reverse();
SqlInfo result = new SqlInfo();
foreach (var item in _ListCallFunc)
{
var method = item as MethodCallExpression;
if (method.Method.Name == "Where")
{
var exp = method.Arguments[1];
where.Add("Where " + this.Context.Queryable<object>().QueryBuilder.GetExpressionValue(exp, ResolveExpressType.WhereSingle).GetString());
}
else if (method.Method.Name == "OrderBy")
{
var exp = method.Arguments[1];
oredrBy.Add( " "+this.Context.Queryable<object>().QueryBuilder.GetExpressionValue(exp,ResolveExpressType.WhereSingle).GetString());
}
else if (method.Method.Name == "OrderByDescending")
{
var exp = method.Arguments[1];
oredrBy.Add(" " + this.Context.Queryable<object>().QueryBuilder.GetExpressionValue(exp, ResolveExpressType.WhereSingle).GetString()+" DESC");
}
else if (method.Method.Name == "ToList")
{
}
else
{
Check.ExceptionEasy($"no support {item}", $"不支持表达式{item} 不支持方法{method.Method.Name}");
}
}
if (where.Any())
{
result.WhereString= String.Join(" AND ", where);
}
if (oredrBy.Any())
{
result.OrderByString = String.Join(" , ", oredrBy);
}
return result;
}
public class SqlInfo
{
public string WhereString { get; set; }
public string OrderByString { get; set; }
}
}
}

4
Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/NavgateExpression.cs
View File

@ -42,6 +42,10 @@ namespace SqlSugar
if (childExpression != null && childExpression is MemberExpression)
{
var child2Expression = (childExpression as MemberExpression).Expression;
if (child2Expression == null)
{
return false;
}
if (child2Expression.Type.IsClass() && child2Expression is ParameterExpression)
{
var entity = this.context.EntityMaintenance.GetEntityInfo(child2Expression.Type);