fix relation

Data/ApplicationDbContext.cs

@@ -20,6 +20,7 @@ namespace BMA.EHR.Recruit.Data
             modelBuilder.Entity<Models.Recruits.Recruit>().HasMany(x => x.Addresses).WithOne(x => x.Recruit).OnDelete(DeleteBehavior.Cascade);
             modelBuilder.Entity<Models.Recruits.Recruit>().HasMany(x => x.Certificates).WithOne(x => x.Recruit).OnDelete(DeleteBehavior.Cascade);
             modelBuilder.Entity<Models.Recruits.Recruit>().HasMany(x => x.Payments).WithOne(x => x.Recruit).OnDelete(DeleteBehavior.Cascade);
+            modelBuilder.Entity<ScoreImport>().HasMany(x => x.Scores).WithOne(x => x.ScoreImport).HasForeignKey(x => x.ScoreImportId).OnDelete(DeleteBehavior.Cascade);
         }
 
         public DbSet<Document> Documents { get; set; }

Migrations/20260519102256_fix relation.cs

@@ -0,0 +1,64 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace BMA.EHR.Recruit.Migrations
+{
+    /// <inheritdoc />
+    public partial class fixrelation : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_ScoreImports_Documents_ImportFileId",
+                table: "ScoreImports");
+
+            migrationBuilder.AlterColumn<Guid>(
+                name: "ImportFileId",
+                table: "ScoreImports",
+                type: "char(36)",
+                nullable: true,
+                collation: "ascii_general_ci",
+                oldClrType: typeof(Guid),
+                oldType: "char(36)")
+                .OldAnnotation("Relational:Collation", "ascii_general_ci");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_ScoreImports_Documents_ImportFileId",
+                table: "ScoreImports",
+                column: "ImportFileId",
+                principalTable: "Documents",
+                principalColumn: "Id");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_ScoreImports_Documents_ImportFileId",
+                table: "ScoreImports");
+
+            migrationBuilder.AlterColumn<Guid>(
+                name: "ImportFileId",
+                table: "ScoreImports",
+                type: "char(36)",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"),
+                collation: "ascii_general_ci",
+                oldClrType: typeof(Guid),
+                oldType: "char(36)",
+                oldNullable: true)
+                .OldAnnotation("Relational:Collation", "ascii_general_ci");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_ScoreImports_Documents_ImportFileId",
+                table: "ScoreImports",
+                column: "ImportFileId",
+                principalTable: "Documents",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+    }
+}

Migrations/ApplicationDbContextModelSnapshot.cs

@@ -1353,7 +1353,7 @@ namespace BMA.EHR.Recruit.Migrations
                         .HasColumnOrder(101)
                         .HasComment("User Id ที่สร้างข้อมูล");
 
-                    b.Property<Guid>("ImportFileId")
+                    b.Property<Guid?>("ImportFileId")
                         .HasColumnType("char(36)");
 
                     b.Property<string>("LastUpdateFullName")
@@ -1550,9 +1550,7 @@ namespace BMA.EHR.Recruit.Migrations
                 {
                     b.HasOne("BMA.EHR.Recruit.Models.Documents.Document", "ImportFile")
                         .WithMany()
-                        .HasForeignKey("ImportFileId")
+                        .HasForeignKey("ImportFileId");
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
 
                     b.HasOne("BMA.EHR.Recruit.Models.Recruits.RecruitImport", "RecruitImport")
                         .WithOne("ScoreImport")

Models/Recruits/RecruitScore.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 
 namespace BMA.EHR.Recruit.Models.Recruits
 {
@@ -83,6 +84,7 @@ namespace BMA.EHR.Recruit.Models.Recruits
         [MaxLength(50), Comment("สถานะคัดกรองคุณสมบัติ")]
         public string ExamAttribute { get; set; } = string.Empty;
 
+        [ForeignKey("ScoreImport")]
         public Guid ScoreImportId { get; set; }
 
         public ScoreImport ScoreImport { get; set; }

Services/ImportBackgroundService.cs

@@ -580,8 +580,13 @@ public class ImportBackgroundService : BackgroundService
             if (existingScores.Count > 0)
                 await _context.BulkDeleteAsync(existingScores);
             // Also delete the ScoreImport row itself (has unique index on RecruitImportId)
+            // Use Remove+SaveChanges instead of BulkDelete since BulkDelete fails with detached entities
+            var scoreImportToDelete = existingScoreImport;
             _context.ChangeTracker.Clear();
-            await _context.BulkDeleteAsync(new List<ScoreImport> { existingScoreImport });
+            var deleteStub = new ScoreImport { Id = scoreImportToDelete.Id };
+            _context.ScoreImports.Attach(deleteStub);
+            _context.ScoreImports.Remove(deleteStub);
+            await _context.SaveChangesAsync();
         }
 
         // Clear tracker to avoid stale references after BulkDelete (which bypasses EF tracking)