课程分类

src/main/java/xyz/playedu/api/controller/backend/CourseCategoryController.java

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+package xyz.playedu.api.controller.backend;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+import xyz.playedu.api.bus.CourseCategoryBus;
+import xyz.playedu.api.constant.BPermissionConstant;
+import xyz.playedu.api.domain.CourseCategory;
+import xyz.playedu.api.event.CourseCategoryDestroyEvent;
+import xyz.playedu.api.exception.NotFoundException;
+import xyz.playedu.api.middleware.BackendPermissionMiddleware;
+import xyz.playedu.api.request.backend.CourseCategoryRequest;
+import xyz.playedu.api.service.CourseCategoryService;
+import xyz.playedu.api.types.JsonResponse;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/2/24 13:57
+ */
+@RestController
+@RequestMapping("/backend/v1/course-category")
+public class CourseCategoryController {
+
+    @Autowired
+    private CourseCategoryService categoryService;
+
+    @Autowired
+    private ApplicationContext ctx;
+
+    @Autowired
+    private CourseCategoryBus courseCategoryBus;
+
+    @GetMapping("/index")
+    public JsonResponse index() {
+        Map<Integer, List<CourseCategory>> categories = categoryService.all().stream().collect(Collectors.groupingBy(CourseCategory::getParentId));
+
+        HashMap<String, Object> data = new HashMap<>();
+        data.put("categories", categories);
+
+        return JsonResponse.data(data);
+    }
+
+    @BackendPermissionMiddleware(slug = BPermissionConstant.COURSE_CATEGORY)
+    @GetMapping("/create")
+    public JsonResponse create(@RequestParam(name = "parent_id", defaultValue = "0") Integer parentId) {
+        List<CourseCategory> data = categoryService.listByParentId(parentId);
+        return JsonResponse.data(data);
+    }
+
+    @BackendPermissionMiddleware(slug = BPermissionConstant.COURSE_CATEGORY)
+    @PostMapping("/create")
+    public JsonResponse store(@RequestBody @Validated CourseCategoryRequest request) throws NotFoundException {
+        String parentChain = "";
+        if (request.getParentId() != 0) {
+            parentChain = courseCategoryBus.compParentChain(request.getParentId());
+        }
+
+        CourseCategory category = new CourseCategory();
+        category.setName(request.getName());
+        category.setParentId(request.getParentId());
+        category.setParentChain(parentChain);
+        category.setSort(request.getSort());
+        category.setCreatedAt(new Date());
+        category.setUpdatedAt(new Date());
+
+        categoryService.save(category);
+
+        return JsonResponse.success();
+    }
+
+    @BackendPermissionMiddleware(slug = BPermissionConstant.COURSE_CATEGORY)
+    @GetMapping("/{id}")
+    public JsonResponse edit(@PathVariable Integer id) throws NotFoundException {
+        CourseCategory category = categoryService.findOrFail(id);
+        return JsonResponse.data(category);
+    }
+
+    @BackendPermissionMiddleware(slug = BPermissionConstant.COURSE_CATEGORY)
+    @PutMapping("/{id}")
+    public JsonResponse update(@PathVariable Integer id, @RequestBody CourseCategoryRequest request) throws NotFoundException {
+        CourseCategory category = categoryService.findOrFail(id);
+        categoryService.update(category, request.getName(), request.getParentId(), request.getSort());
+        return JsonResponse.success();
+    }
+
+    @BackendPermissionMiddleware(slug = BPermissionConstant.COURSE_CATEGORY)
+    @DeleteMapping("/{id}")
+    public JsonResponse destroy(@PathVariable Integer id) throws NotFoundException {
+        CourseCategory category = categoryService.findOrFail(id);
+        categoryService.deleteById(category.getId());
+
+        ctx.publishEvent(new CourseCategoryDestroyEvent(this, id, new Date()));
+
+        return JsonResponse.success();
+    }
+
+}