public IHttpActionResult Postproject_costs(project_costs project_costs)
        {
            Queries q = new Queries();

            project_costs.project_pid = projectsController.CurrentProjectId;

            project_costs.employee_eid = q.GetUserId();
            project_costs.costtimestamp = DateTime.Now;

            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            db.project_costs.Add(project_costs);
            db.SaveChanges();

            return CreatedAtRoute("DefaultApi", new { id = project_costs.pcid }, project_costs);
        }
        public IHttpActionResult Putproject_costs(int id, project_costs project_costs)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            if (id != project_costs.pcid)
            {
                return BadRequest();
            }

            db.Entry(project_costs).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!project_costsExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return StatusCode(HttpStatusCode.NoContent);
        }