How Can I Efficiently Filter Soft-Deleted Entities Using Entity Framework?

Filtering Soft Deleted Entities in Entity Framework

When utilizing Entity Framework Code First with a "soft delete" approach, retrieving entities while excluding those marked as soft deleted requires a tailored solution.

One method to address this challenge is to leverage EntityFramework.DynamicFilters. This library extends Entity Framework by enabling the creation of global filters that can be applied automatically during query execution.

By overriding the SaveChanges method in your DbContext, soft deletions can be implemented effectively. In addition, you can utilize the DynamicFilters library to define a global filter based on an interface like ISoftDelete. This allows for the seamless exclusion of soft deleted entities during retrieval.

To achieve this, simply include the following line in your DbContext.OnModelCreating() method:

modelBuilder.Filter("IsDeleted", (ISoftDelete d) => d.IsDeleted, false);

This filter will automatically inject a where clause into any query against entities that implement ISoftDelete, ensuring that soft deleted entities are excluded.

Using this approach, you can effortlessly filter out soft deleted entities in Entity Framework, providing a more streamlined and efficient data retrieval experience.

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