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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
---
type: rule
title: Data - Do you avoid deleting records by flagging them as IsDeleted (aka Soft Delete)?
title: Data - Do you know you can retain records by flagging them as IsDeleted (aka Soft Delete)?
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uri: avoid-deleting-records-by-flagging-them-as-isdeleted
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categories:
- category: categories/software-engineering/rules-to-better-sql-databases-developers.mdx
Expand Down Expand Up @@ -67,17 +67,35 @@ Override the default delete behavior using EF Core interceptors by using an inte
```chsarp
public class SoftDeleteInterceptor : SaveChangesInterceptor
{
public override InterceptionResult<int> SavingChanges(DbContextEventData eventData, InterceptionResult<int> result)
public override InterceptionResult<int> SavingChanges(
DbContextEventData eventData,
InterceptionResult<int> result)
{
foreach (var entry in eventData.Context.ChangeTracker.Entries<ISoftDeleteEntity>())
UpdateEntities(eventData.Context);
return base.SavingChanges(eventData, result);
}

public override ValueTask<InterceptionResult<int>> SavingChangesAsync(
DbContextEventData eventData,
InterceptionResult<int> result,
CancellationToken cancellationToken)
{
UpdateEntities(eventData.Context);
return base.SavingChangesAsync(eventData, result, cancellationToken);
}

private static void UpdateEntities(DbContext? context)
{
if (context is null) return;

foreach (var entry in context.ChangeTracker.Entries<ISoftDeleteEntity>())
{
if (entry.State == EntityState.Deleted)
{
entry.Entity.IsDeleted = true;
entry.State = EntityState.Modified;
entry.Entity.IsDeleted = true;
}
}
return base.SavingChanges(eventData, result);
}
}
```
Expand Down
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