Phase 1 WP-1: EF Core DbContext with Fluent API mappings for all 26 entities

ScadaLinkDbContext with 10 configuration classes (Fluent API only), initial migration creating 25 tables, environment-aware migration helper (auto-apply dev, validate-only prod), DesignTimeDbContextFactory, optimistic concurrency on DeploymentRecord. 20 tests verify schema, CRUD, relationships, cascades.
2026-03-16 19:15:50 -04:00
parent 9bc5a5163f
commit 1996b21961
23 changed files with 4494 additions and 9 deletions
--- a/src/ScadaLink.ConfigurationDatabase/Configurations/InstanceConfiguration.cs
+++ b/src/ScadaLink.ConfigurationDatabase/Configurations/InstanceConfiguration.cs
@@ -0,0 +1,113 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using ScadaLink.Commons.Entities.Instances;
+using ScadaLink.Commons.Entities.Sites;
+using ScadaLink.Commons.Entities.Templates;
+
+namespace ScadaLink.ConfigurationDatabase.Configurations;
+
+public class InstanceConfiguration : IEntityTypeConfiguration<Instance>
+{
+    public void Configure(EntityTypeBuilder<Instance> builder)
+    {
+        builder.HasKey(i => i.Id);
+
+        builder.Property(i => i.UniqueName)
+            .IsRequired()
+            .HasMaxLength(200);
+
+        builder.Property(i => i.State)
+            .HasConversion<string>()
+            .HasMaxLength(50);
+
+        builder.HasOne<Template>()
+            .WithMany()
+            .HasForeignKey(i => i.TemplateId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne<Site>()
+            .WithMany()
+            .HasForeignKey(i => i.SiteId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne<Area>()
+            .WithMany()
+            .HasForeignKey(i => i.AreaId)
+            .OnDelete(DeleteBehavior.SetNull)
+            .IsRequired(false);
+
+        builder.HasMany(i => i.AttributeOverrides)
+            .WithOne()
+            .HasForeignKey(o => o.InstanceId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        builder.HasMany(i => i.ConnectionBindings)
+            .WithOne()
+            .HasForeignKey(b => b.InstanceId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        builder.HasIndex(i => new { i.SiteId, i.UniqueName }).IsUnique();
+    }
+}
+
+public class InstanceAttributeOverrideConfiguration : IEntityTypeConfiguration<InstanceAttributeOverride>
+{
+    public void Configure(EntityTypeBuilder<InstanceAttributeOverride> builder)
+    {
+        builder.HasKey(o => o.Id);
+
+        builder.Property(o => o.AttributeName)
+            .IsRequired()
+            .HasMaxLength(200);
+
+        builder.Property(o => o.OverrideValue)
+            .HasMaxLength(4000);
+
+        builder.HasIndex(o => new { o.InstanceId, o.AttributeName }).IsUnique();
+    }
+}
+
+public class InstanceConnectionBindingConfiguration : IEntityTypeConfiguration<InstanceConnectionBinding>
+{
+    public void Configure(EntityTypeBuilder<InstanceConnectionBinding> builder)
+    {
+        builder.HasKey(b => b.Id);
+
+        builder.Property(b => b.AttributeName)
+            .IsRequired()
+            .HasMaxLength(200);
+
+        builder.HasOne<DataConnection>()
+            .WithMany()
+            .HasForeignKey(b => b.DataConnectionId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasIndex(b => new { b.InstanceId, b.AttributeName }).IsUnique();
+    }
+}
+
+public class AreaConfiguration : IEntityTypeConfiguration<Area>
+{
+    public void Configure(EntityTypeBuilder<Area> builder)
+    {
+        builder.HasKey(a => a.Id);
+
+        builder.Property(a => a.Name)
+            .IsRequired()
+            .HasMaxLength(200);
+
+        builder.HasOne<Site>()
+            .WithMany()
+            .HasForeignKey(a => a.SiteId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        // Self-referencing parent area
+        builder.HasOne<Area>()
+            .WithMany(a => a.Children)
+            .HasForeignKey(a => a.ParentAreaId)
+            .OnDelete(DeleteBehavior.Restrict)
+            .IsRequired(false);
+
+        builder.HasIndex(a => new { a.SiteId, a.ParentAreaId, a.Name }).IsUnique();
+    }
+}