![]() Besides ASL's direct cargo flights from LGG to PVG, we are. The ASL aviation group owns, operates and manages a fleet of nearly 90 jet and turboprop aircraft, providing services for both passenger and cargo flights. ASL Airlines Belgium, formerly known as TNT Airways, has been founded in 1999 and acquired by ASL Aviation Group on. More for EUROPEAN CARGO LTD (09524169) Registered office address 196 High Road, London, England, N22 8HH.The airport in Dorset has gone from almost no cargo in April 2020 to 20,000 tonnes of throughput up to the end of March 2022, putting Bournemouth on the verge of becoming one of the UK’s top 10 cargo airports. Bournemouth Airport has created a dedicated cargo handling service as it establishes itself as the UK’s fastest growing cargo airport.So there you go: now you can map one entity into multiple tables, or multiple entities into one table (or use complex types for a more lightweight solution). Technically mapping inheritance between objects is also a means of mapping multiple entities into one table, but the purpose in that case is entirely different, so I leave this up for another post :) Conclusion Usually you would use this solution (unless these limitations are a real problem, of course). In turn they are more lightweight and easier to configure. Properties of these types cannot be null in the "parent" class, and you cannot use polymorphism (this means no inheritance between them). no foreign keys in them or pointing into them). As they do not have primary keys, they cannot exist on their own - this means no DbSet for them, and the cannot be part of associations (i.e. The main difference compared to the previous solution is that Address here is a complex type, so as I've written before, they have certain limitations. Remember: no primary key or foreign key into Address (even though that's the dependent).Īnd now for the model: public class MyDemoContext : DbContextĪnd that's it! It also creates one single table, like before, only the column names are different (but you can always change that with a simple property mapping statement). Address will be the complex type, because that is "part of the Person", again. So the idea is the same: you have an Address and a Person. They cannot have their own DbSet, they cannot have primary keys, cannot contain foreign keys and they have some other restrictions. There is a catch (when isn't there?): complex types are not entity types. Complex typesĬomplex types are also a way of mapping multiple entities into one table - sort of. And this indeed creates one table with all the properties as columns, with PersonId as the primary key. Aside from this key fix-up, you can simply Map() to map both the entities into the same table. We make Address the dependent, because that is "part of the Person", and not vice versa. This just configures the keys (because remember primary key must have the same name, and this makes in this case foreign keys also off, so that must be fixed). ModelBuilder.Entity().Map(m => m.ToTable("People")) ModelBuilder.Entity().HasRequired(t => t.Address) ModelBuilder.Entity().HasKey(t => t.PersonId) So you might have a model like this: public class PersonĪnd then configure the context like this: public class MyDemoContext : DbContext Be aware that if you do this, entities must share the same primary key (otherwise you could specify different primary keys to each of the two "halves" of the table). You can also do mapping the other way around: you can map one table into two entities (thus splitting the table). Mapping a single table to multiple entities ![]() Protected override void OnModelCreating(DbModelBuilder modelBuilder) So what happens if you have an entity like this: public class PersonĪnd you want to map it into two tables: one with the PersonId and the Name, where PersonId is the primary key, and another with the address details and PersonId as the foreign key? Well, you can do this with entity splitting: public class MyDemoContext : DbContext (You can use these samples in Visual Studio, but if you want a more convenient way, be sure to check out my post for an Entity Framework Model Builder Workbook). But what happens if you want something different? When you have an entity in EF CF, by default it maps to one table. And this let me to writing this blog post on advanced mapping scenarios. So basically the question was about how to split an entity into two tables. A couple of days back I was lucky enough to answer this question on stackoverflow:
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