public async Task <PagedResultDto <Teacher> > GetPagedTeacherList(GetTeacherInput input)
{
var query = _teacherRepository.GetAll();
if (!string.IsNullOrEmpty(input.FilterText))
{
query = query.Where(s => s.Name.Contains(input.FilterText));
}
var count = query.Count();
query = query.OrderBy(input.Sorting).Skip((input.CurrentPage - 1) * input.MaxResultCount).Take(input.MaxResultCount);
var models = await query.Include(a => a.OfficeLocation)
.Include(a => a.CourseAssignments)
.ThenInclude(a => a.Course)
.ThenInclude(a => a.StudentCourses)
.ThenInclude(a => a.Student)
.Include(i => i.CourseAssignments)
.ThenInclude(i => i.Course)
.ThenInclude(i => i.Department)
.AsNoTracking().ToListAsync();
var dtos = new PagedResultDto <Teacher>
{
TotalCount = count,
CurrentPage = input.CurrentPage,
MaxResultCount = input.MaxResultCount,
Data = models,
FilterText = input.FilterText,
Sorting = input.Sorting
};
return(dtos);
}
public async Task <PagedResultDto <Teacher> > GetPagedTeacherList(GetTeacherInput input)
{
var query = _teacherRepository.GetAll();
if (!string.IsNullOrEmpty(input.FilterText))
{
query = query.Where(s => s.Name.Contains(input.FilterText));
}
//统计查询数据的总条数，用于分页计算总页数
var count = query.Count();
//根据需求进行排序，然后进行分页逻辑的计算
query = query.OrderBy(input.Sorting).Skip((input.CurrentPage - 1) * input.MaxResultCount).Take(input.MaxResultCount);
//将查询结果转换为List集合，加载到内存中
var models = await query.Include(a => a.OfficeLocation) //加载导航属性OfficeLocation
.Include(a => a.CourseAssignments) //加载导航属性 CourseAssignments
.ThenInclude(a => a.Course) //再加载CourseAssignments的导航属性Course
.ThenInclude(a => a.StudentCourses) //再加载Course的导航属性 StudentCourses
.ThenInclude(a => a.Student). //最后加载 StudentCourses的导航属性Student 课程关联的学生信息
Include(i => i.CourseAssignments) //加载导航属性 CourseAssignments
.ThenInclude(i => i.Course) //再加载CourseAssignments的导航属性Course
.ThenInclude(i => i.Department) //最后加载Course 的导航属性 Department ，即课程关联在哪些院系
.AsNoTracking().ToListAsync();
var dtos = new PagedResultDto <Teacher>
{
TotalCount = count,
CurrentPage = input.CurrentPage,
MaxResultCount = input.MaxResultCount,
Data = models,
FilterText = input.FilterText,
Sorting = input.Sorting
};
return(dtos);
}
