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Add Queryale.LeftJoin(+2)

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This commit is contained in:
sunkaixuna 2021-10-31 15:30:09 +08:00
parent b19e05f16d
commit c3c758a6c0
3 changed files with 47 additions and 0 deletions
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5
Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
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@ -431,6 +431,11 @@ namespace OrmTest
var query7 = db.Queryable(db.Queryable<Order>().Select<Order>().MergeTable()).LeftJoin<OrderItem>((m, i) => m.Id == i.OrderId)
.ToList();
var query8 = db.Queryable<Order>()
.LeftJoin(db.Queryable<Custom>().Where(it=>it.Id==1),(o,i)=>o.CustomId==i.Id)
.Select(o => o).ToList();
Console.WriteLine("#### Join Table End ####");
}

39
Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
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@ -46,6 +46,45 @@ namespace SqlSugar
return this.Context.EntityMaintenance.GetEntityInfo<T>();
}
}
public ISugarQueryable<T, T2> LeftJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression)
{
this.Context.InitMappingInfo<T2>();
var result = InstanceFactory.GetQueryable<T, T2>(this.Context.CurrentConnectionConfig);
result.SqlBuilder = this.SqlBuilder;
result.Context = this.Context;
var joinInfo = GetJoinInfo(joinExpression, JoinType.Left);
var sqlObject = joinQueryable.ToSql();
joinInfo.TableName = "(" + sqlObject.Key + ")";
this.QueryBuilder.Parameters.AddRange(sqlObject.Value);
result.QueryBuilder.JoinQueryInfos.Add(joinInfo);
return result;
}
public ISugarQueryable<T, T2> InnerJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression)
{
this.Context.InitMappingInfo<T2>();
var result = InstanceFactory.GetQueryable<T, T2>(this.Context.CurrentConnectionConfig);
result.SqlBuilder = this.SqlBuilder;
result.Context = this.Context;
var joinInfo = GetJoinInfo(joinExpression, JoinType.Inner);
var sqlObject = joinQueryable.ToSql();
joinInfo.TableName = "(" + sqlObject.Key + ")";
this.QueryBuilder.Parameters.AddRange(sqlObject.Value);
result.QueryBuilder.JoinQueryInfos.Add(joinInfo);
return result;
}
public ISugarQueryable<T, T2> RightJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression)
{
this.Context.InitMappingInfo<T2>();
var result = InstanceFactory.GetQueryable<T, T2>(this.Context.CurrentConnectionConfig);
result.SqlBuilder = this.SqlBuilder;
result.Context = this.Context;
var joinInfo = GetJoinInfo(joinExpression, JoinType.Right);
var sqlObject = joinQueryable.ToSql();
joinInfo.TableName = "(" + sqlObject.Key + ")";
this.QueryBuilder.Parameters.AddRange(sqlObject.Value);
result.QueryBuilder.JoinQueryInfos.Add(joinInfo);
return result;
}
public ISugarQueryable<T, T2> LeftJoin<T2>(Expression<Func<T, T2, bool>> joinExpression)
{
this.Context.InitMappingInfo<T2>();

3
Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
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@ -19,6 +19,9 @@ namespace SqlSugar
ISugarQueryable<T> AS<T2>(string tableName);
ISugarQueryable<T> AS(string tableName);
ISugarQueryable<T> With(string withString);
ISugarQueryable<T, T2> LeftJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression);
ISugarQueryable<T, T2> InnerJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression);
ISugarQueryable<T, T2> RightJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression);
ISugarQueryable<T,T2> LeftJoin<T2>(Expression<Func<T,T2,bool>> joinExpression);
ISugarQueryable<T, T2> InnerJoin<T2>(Expression<Func<T, T2, bool>> joinExpression);
ISugarQueryable<T, T2> RightJoin<T2>(Expression<Func<T, T2, bool>> joinExpression);