自动排课：保留手工安排，按教师、行政班、周次、节次、容量和场地约束补排。
课程约束：可限定校区、教学楼、指定教室、允许上课日、最早/最晚节次。 无教室课程：教室可为空，但仍校验教师和班级冲突。 作息维护：按学期维护节次、上下课时间和启用状态。 发布保护：发布前重新检查全部约束，并阻止学时未排满的课表发布。 工作台升级：增加“排课规则与作息”“自动排课”入口，自动生成后仍支持手工微调。 同时兼容 SQLite 和 MySQL，已生成正式迁移。
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using System;
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using Microsoft.EntityFrameworkCore.Migrations;
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#nullable disable
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namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql
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{
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/// <inheritdoc />
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public partial class SchedulingOptimization : Migration
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{
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/// <inheritdoc />
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protected override void Up(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.DropForeignKey(
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name: "FK_ScheduleEntries_Classrooms_ClassroomId",
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table: "ScheduleEntries");
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migrationBuilder.AlterColumn<Guid>(
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name: "ClassroomId",
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table: "ScheduleEntries",
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type: "char(36)",
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nullable: true,
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oldClrType: typeof(Guid),
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oldType: "char(36)");
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migrationBuilder.CreateTable(
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name: "ScheduleTimeSlots",
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columns: table => new
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{
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Id = table.Column<Guid>(type: "char(36)", nullable: false),
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AcademicTermId = table.Column<Guid>(type: "char(36)", nullable: false),
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PeriodNumber = table.Column<int>(type: "int", nullable: false),
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Name = table.Column<string>(type: "varchar(40)", maxLength: 40, nullable: false),
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StartsAt = table.Column<TimeOnly>(type: "time", nullable: false),
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EndsAt = table.Column<TimeOnly>(type: "time", nullable: false),
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IsEnabled = table.Column<bool>(type: "tinyint(1)", nullable: false),
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CreatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
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UpdatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false)
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},
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constraints: table =>
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{
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table.PrimaryKey("PK_ScheduleTimeSlots", x => x.Id);
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table.ForeignKey(
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name: "FK_ScheduleTimeSlots_AcademicTerms_AcademicTermId",
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column: x => x.AcademicTermId,
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principalTable: "AcademicTerms",
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principalColumn: "Id",
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onDelete: ReferentialAction.Cascade);
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})
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.Annotation("MySQL:Charset", "utf8mb4");
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migrationBuilder.CreateTable(
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name: "TeachingTaskScheduleConstraints",
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columns: table => new
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{
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Id = table.Column<Guid>(type: "char(36)", nullable: false),
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TeachingTaskId = table.Column<Guid>(type: "char(36)", nullable: false),
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RequiresClassroom = table.Column<bool>(type: "tinyint(1)", nullable: false),
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RequiredCampusId = table.Column<Guid>(type: "char(36)", nullable: true),
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RequiredBuildingId = table.Column<Guid>(type: "char(36)", nullable: true),
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AllowedDayOfWeeks = table.Column<string>(type: "varchar(20)", maxLength: 20, nullable: true),
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EarliestPeriod = table.Column<int>(type: "int", nullable: true),
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LatestPeriod = table.Column<int>(type: "int", nullable: true),
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CreatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
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UpdatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false)
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},
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constraints: table =>
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{
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table.PrimaryKey("PK_TeachingTaskScheduleConstraints", x => x.Id);
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table.ForeignKey(
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name: "FK_TeachingTaskScheduleConstraints_Buildings_RequiredBuildingId",
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column: x => x.RequiredBuildingId,
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principalTable: "Buildings",
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principalColumn: "Id",
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onDelete: ReferentialAction.Restrict);
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table.ForeignKey(
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name: "FK_TeachingTaskScheduleConstraints_Campuses_RequiredCampusId",
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column: x => x.RequiredCampusId,
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principalTable: "Campuses",
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principalColumn: "Id",
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onDelete: ReferentialAction.Restrict);
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table.ForeignKey(
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name: "FK_TeachingTaskScheduleConstraints_TeachingTasks_TeachingTaskId",
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column: x => x.TeachingTaskId,
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principalTable: "TeachingTasks",
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principalColumn: "Id",
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onDelete: ReferentialAction.Cascade);
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})
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.Annotation("MySQL:Charset", "utf8mb4");
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migrationBuilder.CreateTable(
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name: "TeachingTaskAllowedClassrooms",
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columns: table => new
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{
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TeachingTaskScheduleConstraintId = table.Column<Guid>(type: "char(36)", nullable: false),
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ClassroomId = table.Column<Guid>(type: "char(36)", nullable: false)
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},
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constraints: table =>
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{
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table.PrimaryKey("PK_TeachingTaskAllowedClassrooms", x => new { x.TeachingTaskScheduleConstraintId, x.ClassroomId });
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table.ForeignKey(
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name: "FK_TeachingTaskAllowedClassrooms_Classrooms_ClassroomId",
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column: x => x.ClassroomId,
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principalTable: "Classrooms",
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principalColumn: "Id",
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onDelete: ReferentialAction.Restrict);
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table.ForeignKey(
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name: "FK_TeachingTaskAllowedClassrooms_TeachingTaskScheduleConstraint~",
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column: x => x.TeachingTaskScheduleConstraintId,
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principalTable: "TeachingTaskScheduleConstraints",
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principalColumn: "Id",
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onDelete: ReferentialAction.Cascade);
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})
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.Annotation("MySQL:Charset", "utf8mb4");
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migrationBuilder.CreateIndex(
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name: "IX_ScheduleTimeSlots_AcademicTermId_PeriodNumber",
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table: "ScheduleTimeSlots",
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columns: new[] { "AcademicTermId", "PeriodNumber" },
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unique: true);
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migrationBuilder.CreateIndex(
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name: "IX_TeachingTaskAllowedClassrooms_ClassroomId",
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table: "TeachingTaskAllowedClassrooms",
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column: "ClassroomId");
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migrationBuilder.CreateIndex(
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name: "IX_TeachingTaskScheduleConstraints_RequiredBuildingId",
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table: "TeachingTaskScheduleConstraints",
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column: "RequiredBuildingId");
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migrationBuilder.CreateIndex(
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name: "IX_TeachingTaskScheduleConstraints_RequiredCampusId",
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table: "TeachingTaskScheduleConstraints",
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column: "RequiredCampusId");
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migrationBuilder.CreateIndex(
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name: "IX_TeachingTaskScheduleConstraints_TeachingTaskId",
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table: "TeachingTaskScheduleConstraints",
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column: "TeachingTaskId",
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unique: true);
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migrationBuilder.AddForeignKey(
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name: "FK_ScheduleEntries_Classrooms_ClassroomId",
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table: "ScheduleEntries",
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column: "ClassroomId",
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principalTable: "Classrooms",
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principalColumn: "Id",
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onDelete: ReferentialAction.SetNull);
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}
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/// <inheritdoc />
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protected override void Down(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.DropForeignKey(
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name: "FK_ScheduleEntries_Classrooms_ClassroomId",
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table: "ScheduleEntries");
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migrationBuilder.DropTable(
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name: "ScheduleTimeSlots");
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migrationBuilder.DropTable(
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name: "TeachingTaskAllowedClassrooms");
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migrationBuilder.DropTable(
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name: "TeachingTaskScheduleConstraints");
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migrationBuilder.AlterColumn<Guid>(
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name: "ClassroomId",
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table: "ScheduleEntries",
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type: "char(36)",
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nullable: false,
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defaultValue: new Guid("00000000-0000-0000-0000-000000000000"),
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oldClrType: typeof(Guid),
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oldType: "char(36)",
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oldNullable: true);
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migrationBuilder.AddForeignKey(
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name: "FK_ScheduleEntries_Classrooms_ClassroomId",
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table: "ScheduleEntries",
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column: "ClassroomId",
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principalTable: "Classrooms",
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principalColumn: "Id",
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onDelete: ReferentialAction.Restrict);
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}
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}
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}
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