1

src/main/java/com/peanut/modules/master/service/impl/CourseSociologyServiceImpl.java

@@ -1,13 +1,77 @@
 package com.peanut.modules.master.service.impl;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.peanut.common.utils.R;
 import com.peanut.modules.common.dao.CourseSociologyDao;
+import com.peanut.modules.common.dao.CourseToSociologyDao;
 import com.peanut.modules.common.entity.CourseSociologyEntity;
+import com.peanut.modules.common.entity.CourseToSociologyEntity;
 import com.peanut.modules.master.service.CourseSociologyService;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 @Slf4j
-@Service("masterCourseSociology")
+@Service("masterCourseSociologyService")
 public class CourseSociologyServiceImpl extends ServiceImpl<CourseSociologyDao, CourseSociologyEntity> implements CourseSociologyService {
+
+    @Autowired
+    private CourseToSociologyDao courseToSociologyDao;
+
+    @Override
+    public List<CourseSociologyEntity> getCourseSociologyList() {
+        return this.sociologys(0);
+    }
+
+    @Override
+    public R delCourseSociology(int id) {
+        //查看下一级是否存在
+        CourseSociologyEntity one = this.getOne(new LambdaQueryWrapper<CourseSociologyEntity>().eq(CourseSociologyEntity::getPid, id));
+        if(one!=null){
+            return R.error(501,"删除失败，请先删除子项目后再尝试");
+        }
+        //查看绑定关系是否存在
+        CourseToSociologyEntity courseToSociologyEntity = courseToSociologyDao.selectOne(new LambdaQueryWrapper<CourseToSociologyEntity>().eq(CourseToSociologyEntity::getSociologyId, id));
+        if(courseToSociologyEntity!=null){
+            return R.error(502,"删除失败，请先解绑课程与国学标签的绑定关系");
+        }
+        this.removeById(id);
+        return R.ok();
+    }
+
+
+    @Override
+    public R editCourseSociology(CourseSociologyEntity courseSociologyEntity) {
+        CourseSociologyEntity old = this.getById(courseSociologyEntity.getId());
+
+        if(old.getIsLast()==0&&courseSociologyEntity.getIsLast()==1){
+            CourseSociologyEntity one = this.getOne(new LambdaQueryWrapper<CourseSociologyEntity>().eq(CourseSociologyEntity::getPid, courseSociologyEntity.getId()));
+            if(one!=null){
+                return R.error(501,"更新失败，请先清空此项的下级标签，才能将此标签变成终极标签");
+            }
+        }
+        if(old.getIsLast()==1&&courseSociologyEntity.getIsLast()==0){
+            CourseToSociologyEntity courseToSociologyEntity = courseToSociologyDao.selectOne(new LambdaQueryWrapper<CourseToSociologyEntity>().eq(CourseToSociologyEntity::getSociologyId, courseSociologyEntity.getId()));
+            if(courseToSociologyEntity!=null){
+                return R.error(502,"更新失败，请先把此项与课程的关联关系清空后才可把此标签变成普通标签");
+            }
+        }
+        this.updateById(courseSociologyEntity);
+        return R.ok();
+    }
+
+    private List<CourseSociologyEntity> sociologys(int id){
+        List<CourseSociologyEntity> list = this.list(new LambdaQueryWrapper<CourseSociologyEntity>().eq(CourseSociologyEntity::getPid, id));
+        for (CourseSociologyEntity c : list){
+            if(c.getIsLast()!=1){
+                List<CourseSociologyEntity> so = this.sociologys(c.getId());
+                c.setChildren(so);
+            }
+        }
+        return list;
+    }
+
 }