changetrack | Track changes through the history of PHP projects | Code Analyzer library

How would you Upsert without select? the upsert would be a collection of entities received by a method which contains DTOs that may not be available in the database so you can NOT use attach range for example. One way theoretically is to load the ExistingData partially with a select like dbContext.People.Where(x => x exists in requested collection).Select(x => new Person { Id = x.Id, State = x.State }).ToList() which just loads a part of the entity and not the heavy parts. But here if you update one of these returned entityItems from this collection it will not update because of the new Person its not tracking it and you also cannot say dbContext.Entry(person).State = Modified because it will throw an error and will tell you that ef core is already "Tracking" it. So what to do. One way would be to detach all of them from the ChangeTracker and then do the state change and it will do the update but not just on one field even if you say dbContext.Entry(person).Property(x => x.State).Modified = true. It will overwrite every fields that you haven't read from the database to their default value and it will make a mess in the database. The other way would be to read the ChangeTracker entries and update them but it will also overwrite and it will consider like everything is chanaged. So techinically I don't know how ef core can create the following SQL,

We are using system-versioned temporal table in our Entity Framework Core application. This works really well but we are experiencing problems when creating a test.

https://docs.microsoft.com/en-us/sql/relational-databases/tables/temporal-tables?view=sql-server-ver15

I have been following this guide using SQLite in-memory databases to test an EF Core application from Microsoft.

https://docs.microsoft.com/en-us/ef/core/testing/sqlite#using-sqlite-in-memory-databases

The problem is that Sqlite will throw an exception for SysStartTime. This is expected since the property is marked as prop.ValueGenerated = Microsoft.EntityFrameworkCore.Metadata.ValueGenerated.OnAddOrUpdate; in DbContext and is normally handled by Sql Server. Is there anyway to make this work in SQLite?

SqliteException: SQLite Error 19: 'NOT NULL constraint failed: User.SysStartTime'.

User:

in Django models you can filter the field that you want but how to get a list of fields instead of one field.

I have the following Entity Framework query:

I need to call a few stored procedures (data inserts) plus update an entity value to the database.

I want these operations to be atomic, so if an error occurs, they all rollback.

In my code, if I force an exception to observe the behavior of the rollback, my entity changes are rolling back, but my stored procedure changes do not get rolled back.

Looking at the implementation for unit of work, it's just looking at _context.ChangeTracker.Entries() - I assume completely ignoring any stored procedure changes?

When I change the unit of work implementation to use

I use EF Core 3.1 and this is my code:

I'm developing an ASP.NET Core project where in SaveChanges, I need to log the updated values

According to this I tried to override SaveChangesAsync but I get this error :

Unable to cast object of type 'MyProject.ApplicationDbContext' to type 'System.Data.Entity.Infrastructure.IObjectContextAdapter'.

Code:

I have an EFCore, .NET5 application. Most of my models use a base class:

Iam working on an Asp,net core 5 project targeted .net 5 with Entity framework core.

I have these Entities:

Student: