实体框架包含两个外键

Question

I have a Team table and a Matches table.

Team table:

Id Name
------------
1  TeamA
2  TeamB

If TeamA desires to play TeamB we will add a row in the Matches table

Matches table:

Id HomeTeamId RivalTeamId
-------------------------
1       1          2

If TeamB desires to challenge TeamA we will go about do the following

Matches table:

Id   HomeTeamId   RivalTeamId
-----------------------------
 1       1             2
 2       2             1

My Team and Match POCO (only relevant code) look like this:

public class Team : BaseEntity
{
        public int Id { get; set; }
        public string Name { get; set; }

        public ICollection<Match> HomeMatches { get; set; }
        public ICollection<Match> RivalMatches { get; set; }
}

public class Match : BaseEntity
{
        public int Id { get; set; }
        public string Description { get; set; }

        //navs
        public Team HomeTeam { get; set; }
        public int HomeTeamId { get; set; }

        public Team RivalTeam { get; set; }
        public int RivalTeamId { get; set; }
}

Problem : I guess the experts can already notice a possibility of a cycle up there that I'll come across during query. My problem is that I would like to query TeamA's matches. I would do the following for that

 Team team= dbContext.Team.
                Include("HomeMatches").

In the above team object I notice that BOTH the properties HomeMatches and RivalMatches appear filled.

I would just want the HomeMatches properties filled. I am only interested in those matches which TeamA has chosen to play, not in those where TeamA is a rival.

My question is that when I am clearly mentioned Include("HomeMatches") , why is the RivalMatches property also filled?

Answer 1

您可以尝试在此处使用显式加载