Practical NET And Software Architecture Tips | Microsoft MVP

You can do some pretty fun stuff with EF Core. Here’s an entity configuration with:
– A check constraint that Price > 0
– Controlling Price column precision
– Unique index on Name (because why not)

The next step is creating an EF migration to apply this to the database. I wrote an in-depth guide about working with EF migrations. You can check it out here: EF Migrations Guide

Here’s a primer on working with transactions in EF Core: Working with Transactions in EF Core

You Should Know:

1. EF Core Migration Commands:

dotnet ef migrations add InitialCreate
dotnet ef database update

2. Check Constraint in EF Core:

modelBuilder.Entity<Product>()
.HasCheckConstraint("CK_Product_Price", "Price > 0");

3. Unique Index in EF Core:

modelBuilder.Entity<Product>()
.HasIndex(p => p.Name)
.IsUnique();

4. Precision Configuration for Price Column:

modelBuilder.Entity<Product>()
.Property(p => p.Price)
.HasPrecision(18, 2);

5. Custom SQL in Migrations:

migrationBuilder.Sql("ALTER TABLE Products ADD CONSTRAINT CK_Product_Price CHECK (Price > 0)");

6. Transaction Handling in EF Core:

using (var transaction = context.Database.BeginTransaction())
{
try
{
// Perform operations
context.SaveChanges();
transaction.Commit();
}
catch (Exception)
{
transaction.Rollback();
throw;
}
}

What Undercode Say:

EF Core is a powerful tool for managing database schemas and transactions in .NET applications. By leveraging migrations, you can version-control your database schema and apply changes systematically. The use of check constraints, unique indexes, and precision controls ensures data integrity and consistency. Transactions are crucial for maintaining atomicity in operations, and EF Core provides robust mechanisms to handle them effectively. For further reading, check out the provided links on EF migrations and transactions. Additionally, consider exploring more advanced topics like domain-driven design and microservices architecture to enhance your software development skills.