transactions

back/persistance/data/relations/RoleRelationEstablisher.cs

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+using back.DataModels;
+using Microsoft.EntityFrameworkCore;
+
+namespace back.persistance.data.relations;
+
+public class RoleRelationEstablisher : IRelationEstablisher
+{
+    public void EstablishRelation(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Role>(entity =>
+        {
+            entity.HasOne(d => d.BaseRoleModel).WithMany(p => p.InverseBaseRoleModel).HasForeignKey(d => d.BaseRoleModelId);
+
+            entity.HasMany(d => d.Permissions).WithMany(p => p.Roles)
+                .UsingEntity<Dictionary<string, object>>(
+                    "RolePermission",
+                    r => r.HasOne<Permission>().WithMany()
+                        .HasForeignKey("PermissionId")
+                        .OnDelete(DeleteBehavior.ClientSetNull),
+                    l => l.HasOne<Role>().WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.ClientSetNull),
+                    j =>
+                    {
+                        j.HasKey("RoleId", "PermissionId");
+                        j.ToTable("RolePermissions");
+                    });
+        });
+    }
+}