课程管理

2025-12-22 18:29:51 +08:00 · 2023-02-24 17:41:06 +08:00
parent 97820eb402
commit b47a7adb01
24 changed files with 971 additions and 0 deletions
--- a/src/main/java/xyz/playedu/api/service/impl/CourseServiceImpl.java
+++ b/src/main/java/xyz/playedu/api/service/impl/CourseServiceImpl.java
@@ -0,0 +1,77 @@
+package xyz.playedu.api.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import xyz.playedu.api.domain.Course;
+import xyz.playedu.api.service.CategoryCourseService;
+import xyz.playedu.api.service.CourseDepartmentService;
+import xyz.playedu.api.service.CourseService;
+import xyz.playedu.api.mapper.CourseMapper;
+import org.springframework.stereotype.Service;
+import xyz.playedu.api.types.paginate.CoursePaginateFiler;
+import xyz.playedu.api.types.paginate.PaginationResult;
+import xyz.playedu.api.util.HelperUtil;
+
+import java.util.List;
+
+/**
+ * @author tengteng
+ * @description 针对表【courses】的数据库操作Service实现
+ * @createDate 2023-02-24 14:14:01
+ */
+@Service
+public class CourseServiceImpl extends ServiceImpl<CourseMapper, Course> implements CourseService {
+
+    @Autowired
+    private CourseDepartmentService courseDepartmentService;
+
+    @Autowired
+    private CategoryCourseService categoryCourseService;
+
+    @Override
+    public PaginationResult<Course> paginate(int page, int size, CoursePaginateFiler filter) {
+        QueryWrapper<Course> wrapper = query().getWrapper().eq("1", "1");
+
+        if (filter.getTitle() != null && filter.getTitle().length() > 0) {
+            wrapper.like("title", "%" + filter.getTitle() + "%");
+        }
+        if (filter.getDepIds() != null && filter.getDepIds().length > 0) {
+            List<Integer> courseIds = courseDepartmentService.getCourseIdsByDepIds(filter.getDepIds());
+            if (courseIds.size() == 0) {
+                wrapper.in("id", HelperUtil.zeroIntegerList());
+            } else {
+                wrapper.in("id", courseIds);
+            }
+        }
+        if (filter.getCategoryIds() != null && filter.getCategoryIds().length > 0) {
+            List<Integer> courseIds = categoryCourseService.getCourseIdsByCategoryIds(filter.getCategoryIds());
+            if (courseIds.size() == 0) {
+                wrapper.in("id", HelperUtil.zeroIntegerList());
+            } else {
+                wrapper.in("id", courseIds);
+            }
+        }
+
+        if (filter.getSortAlgo().equals("desc")) {
+            wrapper.orderByDesc(filter.getSortField());
+        } else {
+            wrapper.orderByAsc(filter.getSortField());
+        }
+
+        IPage<Course> pageObj = new Page<>(page, size);
+        pageObj = page(pageObj, wrapper);
+
+        PaginationResult<Course> pageResult = new PaginationResult<>();
+        pageResult.setData(pageObj.getRecords());
+        pageResult.setTotal(pageObj.getTotal());
+
+        return pageResult;
+    }
+}
+
+
+
+