[英]How to use a table like a reference table in Entity Framework Core
I have three tables, one for storing meta information, on for storing sites and one table for refencing the meta information to the sites. 我有三个表,一个用于存储元信息,一个用于存储站点,另一个表用于将元信息引用到站点。
But I can't seem to figure out how to implement it correctly. 但是我似乎无法弄清楚如何正确实现它。 It would be fairly easy in plain sql, but I want to learn the entity framework core method.
在纯sql中,这将相当容易,但是我想学习实体框架的核心方法。
How would you solve this? 您将如何解决?
IncludeHubEntry; IncludeHubEntry;
public interface IIncludeHubEntry : ISiteBase
{
string Rel { get; set; }
int Index { get; set; }
string Integrity { get; set; }
string Src { get; set; }
bool Defer { get; set; }
bool Async { get; set; }
string Type { get; set; }
string Sizes { get; set; }
bool IsDefault { get; set; }
CorsCrossoriginTypes Crossorigin { get; set; }
IncludeEntryTypes EntryType { get; set; }
int OrderBy { get; set; }
string Line { get; }
}
IncludeHubIndex.cs (contains the refence between HubEntry and Site): IncludeHubIndex.cs(包含HubEntry和Site之间的引用):
public interface IIncludeHubIndex : ISiteBase
{
int IncludeHubId { get; set; }
int SiteId { get; set; }
}
Site.cs: Site.cs:
public interface ISite : ISiteBase
{
int AppId { get; set; }
int CultureCollectionId { get; set; }
string Description { get; set; }
string WorkName { get; set; }
CultureCollection Culture { get; set; }
IEnumerable<IncludeHub> Hub { get; set; }
}
To be clear: I want the IEnumerable Hub to contain elements thats referenced in IncludeHubIndex
要明确:我希望IEnumerable Hub包含在IncludeHubIndex中引用的元素
Several days late, though the general consensus that I've seen so far on doing this, an having had to do this as well is essentially - 迟到了几天,尽管到目前为止,我已经就此达成了普遍共识,但实际上也必须这样做-
Map all 3 classes to their table, with the middle being along the lines of 将所有3个类映射到其表,中间是沿着
public interface IIncludeHubIndex : ISiteBase
{
IIncludeHubEntry IncludeHub { get; set; }
ISite Site { get; set; }
}
and then essentially, the two sides of the join both contain a list is the middle object, its really not ideal and use of Nhibernate as opposed to EF Core avoids this issue, though this seems to be a lacking feature of EF Core currently - though correct me if im wrong. 然后从本质上讲,联接的两侧都包含一个列表,是中间对象,它实际上并不理想,并且使用Nhibernate而不是EF Core可以避免此问题,尽管这似乎是EF Core当前缺少的功能-尽管如果我错了纠正我。
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