mirror of
https://github.com/PlayEdu/PlayEdu
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78 lines
2.8 KiB
Java
78 lines
2.8 KiB
Java
package xyz.playedu.api.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import org.springframework.beans.factory.annotation.Autowired;
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import xyz.playedu.api.domain.Course;
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import xyz.playedu.api.service.CategoryCourseService;
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import xyz.playedu.api.service.CourseDepartmentService;
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import xyz.playedu.api.service.CourseService;
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import xyz.playedu.api.mapper.CourseMapper;
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import org.springframework.stereotype.Service;
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import xyz.playedu.api.types.paginate.CoursePaginateFiler;
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import xyz.playedu.api.types.paginate.PaginationResult;
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import xyz.playedu.api.util.HelperUtil;
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import java.util.List;
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/**
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* @author tengteng
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* @description 针对表【courses】的数据库操作Service实现
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* @createDate 2023-02-24 14:14:01
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*/
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@Service
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public class CourseServiceImpl extends ServiceImpl<CourseMapper, Course> implements CourseService {
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@Autowired
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private CourseDepartmentService courseDepartmentService;
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@Autowired
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private CategoryCourseService categoryCourseService;
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@Override
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public PaginationResult<Course> paginate(int page, int size, CoursePaginateFiler filter) {
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QueryWrapper<Course> wrapper = query().getWrapper().eq("1", "1");
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if (filter.getTitle() != null && filter.getTitle().length() > 0) {
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wrapper.like("title", "%" + filter.getTitle() + "%");
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}
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if (filter.getDepIds() != null && filter.getDepIds().length > 0) {
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List<Integer> courseIds = courseDepartmentService.getCourseIdsByDepIds(filter.getDepIds());
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if (courseIds.size() == 0) {
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wrapper.in("id", HelperUtil.zeroIntegerList());
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} else {
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wrapper.in("id", courseIds);
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}
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}
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if (filter.getCategoryIds() != null && filter.getCategoryIds().length > 0) {
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List<Integer> courseIds = categoryCourseService.getCourseIdsByCategoryIds(filter.getCategoryIds());
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if (courseIds.size() == 0) {
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wrapper.in("id", HelperUtil.zeroIntegerList());
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} else {
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wrapper.in("id", courseIds);
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}
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}
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if (filter.getSortAlgo().equals("desc")) {
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wrapper.orderByDesc(filter.getSortField());
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} else {
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wrapper.orderByAsc(filter.getSortField());
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}
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IPage<Course> pageObj = new Page<>(page, size);
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pageObj = page(pageObj, wrapper);
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PaginationResult<Course> pageResult = new PaginationResult<>();
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pageResult.setData(pageObj.getRecords());
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pageResult.setTotal(pageObj.getTotal());
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return pageResult;
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}
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}
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