EntityFramework-Plus检查数据是否实现了接口

Question

我有一个过滤器

 this.Filter<BaseModel>(q => q.Where(x => x.CompanyId == companyId);

有没有办法检查“x”正在实现我的自定义界面“IGlobalDatabaseObject”？

 this.Filter<BaseModel>(q => q.Where(x => x.CompanyId == companyId || x is IGlobalDatabaseObject ); ?

因此，db查询将返回“x.CompanyId == companyId”的数据，或者该数据是否实现全局接口

我正在使用Ef plus库（github.com/zzzprojects/EntityFramework-Plus）

Answer 1

我认为您正在寻找 EF+ Query Filter Enable/Disable功能。在你的情况下，像这样：

// The key identifying your filter
var key = new object();

// Create filter for classes that inherit BaseModel
this.Filter<BaseModel>(key, q => q.Where(x => x.CompanyId == companyId));

// Disable the filter for classes that implement IGlobalDatabaseObject
this.Filter<IGlobalDatabaseObject>(key).Disable();