You can also use navigations in defining global query filters. Using navigations in query filter will cause query filters to be applied recursively. When EF Core expands navigations used in query filters, it will also apply query filters defined on referenced entities....
https://docs.microsoft.com/en-us/ef/core/querying/filters modelBuilder.Entity<Post>().HasQueryFilter(p => !p.IsDeleted); 比较全面的实现可参考: https://gunnarpeipman.com/ef-core-global-query-filters/ 需要注意Cache问题: https://docs.microsoft.com/en-us/ef/core/modeling/dynamic-model https...
EF Core – QueryFilter & Interception 主要参考 Global Query Filters Interceptors QueryFilter QueryFilter 就是默认过滤, 非常适合用来做 Soft Delete builder.HasQueryFilter(e => EF.Property<DateTimeOffset?>(e,"DateDeleted") ==null); 设置这个以后, 一般的 query 语句就拿不到 deleted 的 row 了 如果...
A typical scenario involving context state would be a multi-tenant ASP.NET Core application, where the context instance has a tenant ID which is taken into account by queries (see Global Query Filters for more details). Since the tenant ID needs to change with each web request, we need to...
EF Core自带的全局过滤查询功能 EF Core提供了一个HasQueryFilter供我们在查询的时候进行预置部分筛选条件 例如: builder.HasQueryFilter(x => !x.IsDelete); 这样查询的时候 EF Core 会自动帮我们实现过滤 然后如果不想使用的时候可以全部忽略 DbSet.IgnoreQueryFilters(); ...
Global query filters produce too many parameters Optimize update path for single property JSON element JSON columns can be used in compiled models Unneeded parentheses removed in SQL queries Set operations are supported over non-entity projections with different facets ...
Global query filters The new version also address a common need to apply “vertical filters” when querying for data of specific entity types. These filters are defined in the EF Core model and can reference properties in entities as well as be parameterized by capturing custom members of the ...
为了更方便的查询,我们可以给要软删除的添加一个 global query filter,这样我们每次查询的时候就可以自动过滤已经被软删除的对象了 使用示例代码如下: varservices=newServiceCollection();services.AddLogging(loggingBuilder=>{loggingBuilder.AddConsole();});services.AddDbContext<SoftDeleteSampleContext>(options=>{opti...
Global query filters2.0 Table splittingYes2.0 Entity splittingYes7.0 Database scalar function mappingPoor2.0 Database table valued function mappingPoor5.0 Field mapping1.1 Nullable reference types (C# 8.0)3.0 Graphical visualization of modelYesNo support planned(1) ...
In the latest Entity Framework Community Standup, @JonPSmith shares how to use global query filters to achieve soft deletes and multi-tenancy in #EFCore. The EF Core Community Standups are live-streamed about once every two weeks. This is your opportunity to interact with the EF team and...