DB config WellOperations add OnDelete = SetNull behavior

AsbCloudDb/Migrations/20230928055323_WellOperations_Add_OnDelete_SetNull_Behavior.cs

@@ -0,0 +1,38 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace AsbCloudDb.Migrations
+{
+    public partial class WellOperations_Add_OnDelete_SetNull_Behavior : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_t_well_operation_t_well_operation_id_plan",
+                table: "t_well_operation");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_t_well_operation_t_well_operation_id_plan",
+                table: "t_well_operation",
+                column: "id_plan",
+                principalTable: "t_well_operation",
+                principalColumn: "id",
+                onDelete: ReferentialAction.SetNull);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_t_well_operation_t_well_operation_id_plan",
+                table: "t_well_operation");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_t_well_operation_t_well_operation_id_plan",
+                table: "t_well_operation",
+                column: "id_plan",
+                principalTable: "t_well_operation",
+                principalColumn: "id");
+        }
+    }
+}

AsbCloudDb/Migrations/AsbCloudDbContextModelSnapshot.cs

@@ -8408,7 +8408,8 @@ namespace AsbCloudDb.Migrations
 
                     b.HasOne("AsbCloudDb.Model.WellOperation", "OperationPlan")
                         .WithMany()
-                        .HasForeignKey("IdPlan");
+                        .HasForeignKey("IdPlan")
+                        .OnDelete(DeleteBehavior.SetNull);
 
                     b.HasOne("AsbCloudDb.Model.Well", "Well")
                         .WithMany("WellOperations")

AsbCloudDb/Model/AsbCloudDbContext.cs

@@ -277,6 +277,11 @@ namespace AsbCloudDb.Model
             {
                 entity.HasIndex(d => d.DepthEnd);
                 entity.HasIndex(d => d.DateStart);
+
+                entity.HasOne(o => o.OperationPlan)                
+                    .WithMany()
+                    .HasForeignKey(o => o.IdPlan)
+                    .OnDelete(DeleteBehavior.SetNull);
             });
 
             modelBuilder.Entity<DrillingProgramPart>(entity =>

AsbCloudDb/Model/WellOperation.cs

@@ -66,7 +66,7 @@ namespace AsbCloudDb.Model
 
         [JsonIgnore]
         [ForeignKey(nameof(IdPlan))]
-        public virtual WellOperation OperationPlan { get; set; } = null!;
+        public virtual WellOperation? OperationPlan { get; set; } = null!;
     }
 
 }