优化排课
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using System.ComponentModel.DataAnnotations;
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using Jiaowu.Api.Domain.Academic;
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using Jiaowu.Api.Domain.Identity;
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using Jiaowu.Api.Infrastructure.Auth;
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using Jiaowu.Api.Infrastructure.Persistence;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.EntityFrameworkCore;
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namespace Jiaowu.Api.Controllers;
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[ApiController]
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[Authorize]
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[Route("api/teacher-course-applications")]
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public sealed class TeacherCourseApplicationsController(
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AppDbContext db,
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ICurrentUserDataScope currentUserDataScope) : ControllerBase
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{
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private const string ReviewRoles =
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SystemRoles.SuperAdmin + "," +
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SystemRoles.AcademicAdmin + "," +
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SystemRoles.CollegeAdmin;
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[HttpGet("mine")]
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[Authorize(Roles = SystemRoles.Teacher)]
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public async Task<ActionResult> GetMine(
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Guid? academicTermId,
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CancellationToken cancellationToken)
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{
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var teacher = await CurrentTeacherAsync(cancellationToken);
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if (teacher is null) return ConflictProblem("当前账号尚未关联在职教师档案。");
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var source = db.TeacherCourseApplications.AsNoTracking()
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.Where(x => x.TeacherId == teacher.Id);
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if (academicTermId.HasValue)
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source = source.Where(x => x.AcademicTermId == academicTermId);
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return Ok(await source
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.OrderByDescending(x => x.AcademicTerm!.StartDate)
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.ThenBy(x => x.Course!.Code)
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.Select(x => new
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{
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x.Id,
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x.AcademicTermId,
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TermName = x.AcademicTerm!.Name,
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x.CourseId,
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CourseCode = x.Course!.Code,
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CourseName = x.Course.Name,
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CollegeName = x.Course.College!.Name,
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x.Status,
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x.Statement,
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x.ReviewComment,
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x.SubmittedAt,
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x.ReviewedAt
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})
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.ToListAsync(cancellationToken));
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}
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[HttpPost("mine")]
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[Authorize(Roles = SystemRoles.Teacher)]
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public async Task<ActionResult> Submit(
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TeacherCourseApplicationRequest request,
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CancellationToken cancellationToken)
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{
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var teacher = await CurrentTeacherAsync(cancellationToken);
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if (teacher is null) return ConflictProblem("当前账号尚未关联在职教师档案。");
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if (!await db.AcademicTerms.AnyAsync(
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x => x.Id == request.AcademicTermId && x.IsEnabled,
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cancellationToken))
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return ValidationProblem("所选学期不存在或已停用。");
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if (!await db.Courses.AnyAsync(
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x => x.Id == request.CourseId && x.IsEnabled,
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cancellationToken))
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return ValidationProblem("所选课程不存在或已停用。");
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var application = await db.TeacherCourseApplications
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.FirstOrDefaultAsync(x =>
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x.AcademicTermId == request.AcademicTermId &&
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x.TeacherId == teacher.Id &&
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x.CourseId == request.CourseId,
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cancellationToken);
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if (application is not null &&
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application.Status is TeacherCourseApplicationStatus.Pending or
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TeacherCourseApplicationStatus.Approved)
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return ConflictProblem("该学期的课程申报已提交或已审核通过。");
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if (application is null)
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{
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application = new TeacherCourseApplication
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{
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AcademicTermId = request.AcademicTermId,
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TeacherId = teacher.Id,
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CourseId = request.CourseId
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};
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db.TeacherCourseApplications.Add(application);
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}
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application.Status = TeacherCourseApplicationStatus.Pending;
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application.Statement = Normalize(request.Statement);
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application.ReviewComment = null;
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application.SubmittedAt = DateTime.UtcNow;
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application.ReviewedAt = null;
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application.ReviewedByUserId = null;
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await db.SaveChangesAsync(cancellationToken);
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return Created(string.Empty, new { application.Id });
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}
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[HttpDelete("mine/{id:guid}")]
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[Authorize(Roles = SystemRoles.Teacher)]
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public async Task<ActionResult> Withdraw(Guid id, CancellationToken cancellationToken)
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{
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var teacher = await CurrentTeacherAsync(cancellationToken);
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if (teacher is null) return ConflictProblem("当前账号尚未关联在职教师档案。");
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var application = await db.TeacherCourseApplications.FirstOrDefaultAsync(
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x => x.Id == id && x.TeacherId == teacher.Id,
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cancellationToken);
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if (application is null) return NotFound();
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if (application.Status != TeacherCourseApplicationStatus.Pending)
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return ConflictProblem("只有待审核申报可以撤回。");
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application.Status = TeacherCourseApplicationStatus.Withdrawn;
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await db.SaveChangesAsync(cancellationToken);
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return NoContent();
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}
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[HttpGet("reviews")]
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[Authorize(Roles = ReviewRoles)]
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public async Task<ActionResult> GetReviews(
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Guid? academicTermId,
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TeacherCourseApplicationStatus? status,
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CancellationToken cancellationToken)
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{
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var source = ScopedApplications().AsNoTracking();
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if (academicTermId.HasValue)
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source = source.Where(x => x.AcademicTermId == academicTermId);
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if (status.HasValue) source = source.Where(x => x.Status == status);
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return Ok(await source
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.OrderBy(x => x.Status)
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.ThenByDescending(x => x.SubmittedAt)
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.Select(x => new
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{
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x.Id,
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x.AcademicTermId,
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TermName = x.AcademicTerm!.Name,
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x.TeacherId,
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x.Teacher!.TeacherNumber,
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TeacherName = x.Teacher.Name,
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TeacherCollegeName = x.Teacher.College!.Name,
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x.CourseId,
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CourseCode = x.Course!.Code,
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CourseName = x.Course.Name,
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CourseCollegeName = x.Course.College!.Name,
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x.Status,
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x.Statement,
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x.ReviewComment,
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x.SubmittedAt,
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x.ReviewedAt
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})
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.ToListAsync(cancellationToken));
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}
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[HttpPost("{id:guid}/review")]
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[Authorize(Roles = ReviewRoles)]
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public async Task<ActionResult> Review(
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Guid id,
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TeacherCourseReviewRequest request,
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CancellationToken cancellationToken)
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{
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if (request.Status is not (
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TeacherCourseApplicationStatus.Approved or
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TeacherCourseApplicationStatus.Rejected))
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return ValidationProblem("审核结论只能为通过或驳回。");
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var application = await ScopedApplications()
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.FirstOrDefaultAsync(x => x.Id == id, cancellationToken);
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if (application is null) return NotFound();
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if (application.Status != TeacherCourseApplicationStatus.Pending)
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return ConflictProblem("只有待审核申报可以审核。");
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application.Status = request.Status;
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application.ReviewComment = Normalize(request.ReviewComment);
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application.ReviewedAt = DateTime.UtcNow;
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application.ReviewedByUserId = currentUserDataScope.Current.UserId;
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await db.SaveChangesAsync(cancellationToken);
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return NoContent();
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}
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[HttpGet("eligible")]
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[Authorize(Roles = ReviewRoles)]
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public async Task<ActionResult> GetEligible(
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Guid academicTermId,
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Guid courseId,
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CancellationToken cancellationToken)
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{
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var source = ScopedApplications().AsNoTracking()
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.Where(x =>
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x.AcademicTermId == academicTermId &&
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x.CourseId == courseId &&
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x.Status == TeacherCourseApplicationStatus.Approved &&
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x.Teacher!.Status == TeacherStatus.Active);
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return Ok(await source
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.OrderBy(x => x.Teacher!.TeacherNumber)
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.Select(x => new
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{
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x.TeacherId,
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x.Teacher!.TeacherNumber,
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x.Teacher.Name,
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x.Teacher.Title,
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CollegeName = x.Teacher.College!.Name
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})
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.ToListAsync(cancellationToken));
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}
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private IQueryable<TeacherCourseApplication> ScopedApplications()
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{
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var source = db.TeacherCourseApplications.AsQueryable();
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var collegeId = currentUserDataScope.Current.RestrictedCollegeId;
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return collegeId.HasValue
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? source.Where(x => x.Teacher!.CollegeId == collegeId.Value)
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: source;
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}
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private Task<Teacher?> CurrentTeacherAsync(CancellationToken cancellationToken)
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{
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var userId = currentUserDataScope.Current.UserId;
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return db.Teachers.FirstOrDefaultAsync(
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x => x.UserId == userId && x.Status == TeacherStatus.Active,
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cancellationToken);
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}
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private ActionResult ConflictProblem(string detail) =>
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Conflict(new ProblemDetails
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{
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Title = "无法完成操作",
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Detail = detail,
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Status = StatusCodes.Status409Conflict
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});
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private static string? Normalize(string? value) =>
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string.IsNullOrWhiteSpace(value) ? null : value.Trim();
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}
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public sealed record TeacherCourseApplicationRequest(
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Guid AcademicTermId,
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Guid CourseId,
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[MaxLength(500)] string? Statement);
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public sealed record TeacherCourseReviewRequest(
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TeacherCourseApplicationStatus Status,
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[MaxLength(500)] string? ReviewComment);
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