#1524 Changed the delete request to an update request and added tests

Author: Aaryan1203

src/backend/src/services/projects.services.ts

@@ -859,13 +859,17 @@ export default class ProjectsService {
     });
 
     if (!materialType) throw new NotFoundException('Material Type', materialTypeId);
+    if (materialType.dateDeleted) throw new DeletedException('Material Type', materialTypeId);
 
-    await prisma.material_Type.delete({
+    const deletedMaterialType = await prisma.material_Type.update({
       where: {
         name: materialTypeId
+      },
+      data: {
+        dateDeleted: new Date()
       }
     });
 
-    return materialType;
+    return deletedMaterialType;
   }
 }

src/backend/tests/projects.test.ts

@@ -697,12 +697,19 @@ describe('Projects', () => {
       );
     });
 
+    test('Deleted Material Tye does not work if the material type is already deleted', async () => {
+      vi.spyOn(prisma.material_Type, 'findUnique').mockResolvedValue({ ...toolMaterial, dateDeleted: new Date() });
+      await expect(ProjectsService.deleteMaterialType('NERSoftwareTools', batman)).rejects.toThrow(
+        new DeletedException('Material Type', 'NERSoftwareTools')
+      );
+    });
+
     test('Delete Material Type works', async () => {
       vi.spyOn(prisma.material_Type, 'findUnique').mockResolvedValue(toolMaterial);
-      vi.spyOn(prisma.material_Type, 'delete').mockResolvedValue(toolMaterial);
+      vi.spyOn(prisma.material_Type, 'update').mockResolvedValue({ ...toolMaterial, dateDeleted: new Date() });
       const deletedMaterialType = await ProjectsService.deleteMaterialType('NERSoftwareTools', superman);
       expect(deletedMaterialType.name).toBe('NERSoftwareTools');
-      expect(prisma.material_Type.delete).toBeCalledTimes(1);
+      expect(prisma.material_Type.update).toBeCalledTimes(1);
     });
   });
 });

src/backend/tests/test-data/projects.test-data.ts

@@ -164,5 +164,6 @@ export const prismaManufacturer2: Manufacturer = {
 export const toolMaterial: PrismaMaterialType = {
   name: 'NERSoftwareTools',
   dateCreated: new Date(),
-  creatorId: batman.userId
+  creatorId: batman.userId,
+  dateDeleted: null
 };