private static IQueryable <Course> ApplyFilter(GetCourseListQuery request, IQueryable <Course> queryable)
{
if (request.Status.HasValue)
{
queryable = queryable.Where(x => x.ApprovalStatus == request.Status);
}
if (!string.IsNullOrEmpty(request.TeacherUserName))
{
queryable = queryable.Where(x =>
x.Teacher.UserName.Contains(request.TeacherUserName) ||
x.Teacher.FullName.Contains(request.TeacherUserName));
}
if (!string.IsNullOrEmpty(request.LessonCode))
{
queryable = queryable.Where(x =>
x.Lessons.Any(l => l.Lesson.Lesson.LessonCode.Contains(request.LessonCode)));
}
if (request.FieldId.HasValue)
{
queryable = queryable.Where(x =>
x.Lessons.Any(l => l.Lesson.FieldId == request.FieldId));
}
if (!string.IsNullOrEmpty(request.FieldCode))
{
queryable = queryable.Where(x =>
x.Lessons.Any(l => l.Lesson.Field.Code.Contains(request.FieldCode)));
}
if (request.GradeId.HasValue)
{
queryable = queryable.Where(x =>
x.Lessons.Any(l => l.Lesson.GradeId == request.GradeId));
}
if (request.CourseCategoryId.HasValue)
{
queryable = queryable.Where(x =>
x.CourseCategoryId == request.CourseCategoryId);
}
return(queryable);
}
public async Task <PagenatedList <CourseDto> > Handle(GetCourseListQuery request,
CancellationToken cancellationToken)
{
var queryable = _repository.GetQueryable();
queryable = ApplyFilter(request, queryable).Include(x => x.Teacher)
.Include(x => x.CourseCategory)
.Include(x => x.Contents)
.Include(x => x.Lessons).ThenInclude(x => x.Lesson)
.Include(x => x.Lessons).ThenInclude(x => x.Lesson.Lesson)
.Include(x => x.Lessons).ThenInclude(x => x.Lesson.Field)
.Include(x => x.Lessons).ThenInclude(x => x.Lesson.Grade);
var items = await queryable.OrderByDescending(x => x.Id).Pagenate(request).Select(CourseProfile.ProjectionList)
.ToListAsync(cancellationToken);
return(new PagenatedList <CourseDto>
{
Items = items,
AllCount = queryable.Count()
});
}
