Phase 9 Wave 1: add ReleaseMedium discriminator + Session/Mix metadata

Add ReleaseMedium enum (Cut/Session/Mix) and two 1:1 satellite entities (SessionMetadata, MixMetadata) with EF configs and an additive migration. ReleaseDto.ReleaseType is now nullable, nulled for non-Cut at the converter. Existing releases default to Cut via column default; no data migration.
2026-06-12 21:47:04 -04:00
parent 6f63fe7d7c
commit 5d6b54d2fc
16 changed files with 767 additions and 4 deletions
@@ -0,0 +1,48 @@
+using Data.Data.Configurations;
+using DeepDrftModels.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace DeepDrftData.Data.Configurations;
+
+public class SessionMetadataConfiguration : BaseEntityConfiguration<SessionMetadata>
+{
+    public override void Configure(EntityTypeBuilder<SessionMetadata> builder)
+    {
+        // Wires up Id PK + audit columns (CreatedAt, UpdatedAt, IsDeleted) and the IsDeleted index.
+        base.Configure(builder);
+
+        builder.ToTable("session_metadata");
+
+        // Map the base audit columns to the snake_case naming the rest of the schema uses.
+        builder.Property(e => e.Id).HasColumnName("id");
+        builder.Property(e => e.CreatedAt).HasColumnName("created_at");
+        builder.Property(e => e.UpdatedAt).HasColumnName("updated_at");
+        builder.Property(e => e.IsDeleted).HasColumnName("is_deleted");
+
+        builder.Property(e => e.ReleaseId)
+            .HasColumnName("release_id");
+
+        builder.Property(e => e.HeroImageEntryKey)
+            .IsRequired()
+            .HasMaxLength(500)   // Consistent with ImagePath on ReleaseEntity; entry keys can carry GUIDs.
+            .HasColumnName("hero_image_entry_key");
+
+        // 1:1 to the parent release. The unique FK index is the DB-level enforcement of the
+        // one-satellite-per-release cardinality. Cascade on delete: removing the release removes its
+        // medium satellite (unlike Track's SetNull — a satellite has no meaning without its release).
+        builder.HasOne(e => e.Release)
+            .WithOne(r => r.SessionMetadata)
+            .HasForeignKey<SessionMetadata>(e => e.ReleaseId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        builder.HasIndex(e => e.ReleaseId)
+            .IsUnique()
+            .HasDatabaseName("IX_session_metadata_release_id");
+
+        // Names the is_deleted index explicitly. BaseEntityConfiguration.Configure already
+        // calls HasIndex(e => e.IsDeleted); this adds HasDatabaseName so EF always uses
+        // "IX_session_metadata_is_deleted" regardless of auto-naming conventions.
+        builder.HasIndex(e => e.IsDeleted).HasDatabaseName("IX_session_metadata_is_deleted");
+    }
+}