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How to map entities in the 'OnModelCreating' method to implement TPT inheritance in EF Core?
<p>To implement the TPT inheritance strategy in EF Core, you need to:</p> <ol> <li>Call the <code>UseTptMappingStrategy</code> method for your root entity (optional if you already specify a table name for every entity but highly recommended to make your intention clear)</li> <li>Call the <code>ToTable([TableName])</code> method for every concrete entity if you want a different table name by default</li> </ol> <p>Here is an example:</p> <pre><code class="language-csharp">protected override void OnModelCreating(ModelBuilder modelBuilder) { // optional if you already specify a table name for every entity but highly recommended to make your intention clear modelBuilder.Entity<Animal>().UseTptMappingStrategy(); modelBuilder.Entity<Animal>().ToTable("Animal"); modelBuilder.Entity<Cat>().ToTable("Cat"); modelBuilder.Entity<Dog>().ToTable("Dog"); } </code></pre> <p>In this example, even if <code>Animal</code> is an abstract class, it must be mapped to its table as it will contain data such as the key for both <code>Cat</code> and <code>Dog</code> classes.</p>
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