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

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+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.modules.common.dao.CourseCatalogueDao;
+import com.peanut.modules.common.entity.CourseCatalogueEntity;
+import com.peanut.modules.master.service.CourseCatalogueService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Slf4j
+@Service("masterCourseCatalogueService")
+public class CourseCatalogueServiceImpl extends ServiceImpl<CourseCatalogueDao, CourseCatalogueEntity> implements CourseCatalogueService {
+
+
+    @Override
+    public List<CourseCatalogueEntity> getCourseCatalogues(int id) {
+        LambdaQueryWrapper<CourseCatalogueEntity> courseCatalogueEntityLambdaQueryWrapper = new LambdaQueryWrapper<>();
+        courseCatalogueEntityLambdaQueryWrapper.eq(CourseCatalogueEntity::getCourseId,id);
+        List<CourseCatalogueEntity> list = this.list(courseCatalogueEntityLambdaQueryWrapper);
+        return list;
+    }
+}