333 lines
10 KiB
Vue
333 lines
10 KiB
Vue
<script setup>
|
|
import { onMounted, ref } from 'vue';
|
|
import { ElButton, ElForm, ElFormItem, ElInput, ElMessage, ElMessageBox, ElPagination, ElTable, ElTableColumn } from 'element-plus';
|
|
import axios from "axios";
|
|
import { useStore } from "vuex";
|
|
import { useRouter } from "vue-router";
|
|
import Course from "@views/course-management/Course.vue";
|
|
import BackgroundWrapper from './BackgroundWrapper.vue';
|
|
import _ from 'lodash';
|
|
import { write, utils } from 'xlsx';
|
|
import { saveAs } from 'file-saver';
|
|
|
|
const router = useRouter();
|
|
const store = useStore();
|
|
const token = store.getters['authentication/token'];
|
|
|
|
const searchTitle = ref('');
|
|
const searchAuthor = ref('');
|
|
const searchDescription = ref('');
|
|
const sortOrder = ref('');
|
|
|
|
const allCoursesData = ref([]);
|
|
const coursesData = ref([]);
|
|
|
|
const currentPage = ref(1);
|
|
const pageSize = ref(10);
|
|
const coursesCount = ref(0);
|
|
const firstTimeLoad = ref(true);
|
|
|
|
const selections = ref([]);
|
|
|
|
const loadCourses = async (forceReload = false) => {
|
|
if (forceReload) {
|
|
firstTimeLoad.value = true;
|
|
allCoursesData.value = [];
|
|
}
|
|
|
|
if (firstTimeLoad.value || allCoursesData.value.length < (currentPage.value * pageSize.value) && (currentPage.value * pageSize.value) <= coursesCount.value) {
|
|
let params = {
|
|
token: token,
|
|
start: allCoursesData.value.length,
|
|
end: allCoursesData.value.length + pageSize.value * 2
|
|
};
|
|
try {
|
|
const response = await axios.get('/api/courses', { params });
|
|
const data = response.data;
|
|
coursesCount.value = data.courseCount;
|
|
allCoursesData.value.push(...data.courseList);
|
|
} catch (e) {
|
|
console.log(e);
|
|
}
|
|
firstTimeLoad.value = false;
|
|
}
|
|
coursesData.value = allCoursesData.value.slice((currentPage.value - 1) * pageSize.value, currentPage.value * pageSize.value);
|
|
};
|
|
|
|
onMounted(() => {
|
|
loadCourses();
|
|
});
|
|
|
|
const handleSearch = async () => {
|
|
try {
|
|
const response = await axios.get('/api/courses/search', {
|
|
params: {
|
|
token: token,
|
|
title: searchTitle.value || '',
|
|
author: searchAuthor.value || '',
|
|
description: searchDescription.value || '',
|
|
sortOrder: sortOrder.value || '',
|
|
start: 0,
|
|
end: pageSize.value
|
|
}
|
|
});
|
|
const data = response.data;
|
|
coursesCount.value = data.courseCount;
|
|
allCoursesData.value = data.courseList;
|
|
coursesData.value = allCoursesData.value.slice(0, pageSize.value);
|
|
currentPage.value = 1;
|
|
firstTimeLoad.value = false;
|
|
} catch (e) {
|
|
console.error(e);
|
|
}
|
|
};
|
|
|
|
const handleReset = async () => {
|
|
searchTitle.value = '';
|
|
searchAuthor.value = '';
|
|
searchDescription.value = '';
|
|
sortOrder.value = '';
|
|
await loadCourses(true); // 强制重新加载课程数据
|
|
};
|
|
|
|
const handleSort = async () => {
|
|
// 将所有课程的排序字段转换成数值
|
|
const sortedCourses = _.cloneDeep(allCoursesData.value).map(course => ({
|
|
...course,
|
|
orderNo: Number(course.orderNo)
|
|
})).sort((a, b) => a.orderNo - b.orderNo);
|
|
|
|
// 更新所有课程的数据
|
|
allCoursesData.value = sortedCourses;
|
|
|
|
// 计算当前分页的数据
|
|
const start = (currentPage.value - 1) * pageSize.value;
|
|
const end = start + pageSize.value;
|
|
coursesData.value = allCoursesData.value.slice(start, end);
|
|
};
|
|
|
|
const handleExport = () => {
|
|
// 创建一个新的工作簿
|
|
const workbook = utils.book_new();
|
|
|
|
// 创建工作表数据，提取 allCoursesData
|
|
const sheetData = allCoursesData.value.map(course => ({
|
|
'课程名称': course.title,
|
|
'作者': course.author,
|
|
'课程简介': course.description,
|
|
'排序': course.orderNo
|
|
}));
|
|
|
|
// 将数据放入工作表
|
|
const worksheet = utils.json_to_sheet(sheetData);
|
|
|
|
// 将工作表添加到工作簿中
|
|
utils.book_append_sheet(workbook, worksheet, 'Courses');
|
|
|
|
// 生成 Excel 文件
|
|
const wbout = write(workbook, { bookType: 'xlsx', type: 'array' });
|
|
|
|
// 使用 file-saver 保存文件
|
|
saveAs(new Blob([wbout], { type: 'application/octet-stream' }), '课程信息.xlsx');
|
|
};
|
|
|
|
const handleEditButton = () => {
|
|
if (selections.value.length === 1) {
|
|
// 只有一个课程被选中，导航到编辑页面
|
|
const selectedCourse = selections.value[0];
|
|
router.push({ name: 'Course', query: { mode: 'edit', id: selectedCourse.id } });
|
|
} else if (selections.value.length > 1) {
|
|
// 选中了多个课程，弹出提示
|
|
ElMessage.warning('无法同时修改多个目标');
|
|
} else {
|
|
// 没有选中任何课程，弹出提示
|
|
ElMessage.warning('请先选择要修改的课程');
|
|
}
|
|
};
|
|
|
|
const handleDeleteButton = async () => {
|
|
if (selections.value.length === 0) {
|
|
ElMessage.warning('请先选择要删除的课程');
|
|
return;
|
|
}
|
|
|
|
ElMessageBox.confirm(
|
|
'是否确认删除选中的课程？此操作不可撤销。',
|
|
'确认删除',
|
|
{
|
|
confirmButtonText: '确认',
|
|
cancelButtonText: '取消',
|
|
type: 'warning',
|
|
}
|
|
).then(async () => {
|
|
try {
|
|
const deletePromises = selections.value.map(selection =>
|
|
axios.delete(`/api/courses/${selection.id}`, { params: { token: token } })
|
|
);
|
|
await Promise.all(deletePromises);
|
|
ElMessage.success('删除成功');
|
|
selections.value = []; // 清空选中项
|
|
await loadCourses(true); // 强制重新加载课程数据
|
|
} catch (e) {
|
|
ElMessage.error('删除失败');
|
|
console.error(e);
|
|
}
|
|
}).catch(() => {
|
|
ElMessage.info('已取消删除操作');
|
|
});
|
|
};
|
|
|
|
const handleSelectionChange = (newSelections) => {
|
|
selections.value = newSelections;
|
|
};
|
|
|
|
const handleEditInTable = (index) => {
|
|
router.push({ name: 'Course', query: { mode: 'edit', id: coursesData.value[index].id } });
|
|
};
|
|
|
|
const handleDeleteInTable = async (index) => {
|
|
ElMessageBox.confirm(
|
|
'是否确认删除该课程？此操作不可撤销。',
|
|
'确认删除',
|
|
{
|
|
confirmButtonText: '确认',
|
|
cancelButtonText: '取消',
|
|
type: 'warning',
|
|
}
|
|
).then(async () => {
|
|
try {
|
|
await axios.delete(`/api/courses/${coursesData.value[index].id}`, { params: { token: token } });
|
|
coursesData.value.splice(index, 1);
|
|
allCoursesData.value.splice(index, 1);
|
|
coursesCount.value--;
|
|
await loadCourses(true); // 强制重新加载课程数据
|
|
} catch (e) {
|
|
ElMessage.error('删除失败');
|
|
console.error(e);
|
|
}
|
|
}).catch(() => {
|
|
ElMessage.info('已取消删除操作');
|
|
});
|
|
};
|
|
</script>
|
|
|
|
<template>
|
|
<BackgroundWrapper class="background-wrapper">
|
|
<div class="center-wrapper">
|
|
<div class="container">
|
|
<div class="search-container">
|
|
<el-form inline>
|
|
<el-form-item label="课程名称">
|
|
<el-input v-model="searchTitle" placeholder="请输入课程名称" />
|
|
</el-form-item>
|
|
<el-form-item label="排序">
|
|
<el-input v-model="sortOrder" placeholder="请输入排序" />
|
|
</el-form-item>
|
|
<el-form-item label="作者">
|
|
<el-input v-model="searchAuthor" placeholder="请输入作者" />
|
|
</el-form-item>
|
|
<el-form-item label="课程简介">
|
|
<el-input v-model="searchDescription" placeholder="请输入简介" />
|
|
</el-form-item>
|
|
<el-form-item>
|
|
<el-button type="primary" @click="handleSearch">搜索</el-button>
|
|
</el-form-item>
|
|
<el-form-item>
|
|
<el-button @click="handleReset">重置</el-button>
|
|
</el-form-item>
|
|
</el-form>
|
|
</div>
|
|
|
|
<div class="button-container">
|
|
<el-button type="success" @click="router.push('/course?mode=create')">新增</el-button>
|
|
<el-button type="warning" @click="handleEditButton">修改</el-button>
|
|
<el-button type="danger" @click="handleDeleteButton">删除</el-button>
|
|
<el-button type="info" @click="handleSort">排序</el-button>
|
|
<el-button type="primary" @click="handleExport">导出</el-button>
|
|
</div>
|
|
|
|
<el-table :data="coursesData" style="width: 100%;" @selection-change="handleSelectionChange">
|
|
<el-table-column type="selection" width="55"></el-table-column>
|
|
<el-table-column prop="orderNo" label="排序" align="center"></el-table-column>
|
|
<el-table-column prop="title" label="课程名称" align="center"></el-table-column>
|
|
<el-table-column prop="author" label="作者" align="center"></el-table-column>
|
|
<el-table-column prop="description" label="课程简介" align="center"></el-table-column>
|
|
<el-table-column label="操作" align="center">
|
|
<template #default="scope">
|
|
<el-button @click="handleEditInTable(scope.$index)" type="text">修改</el-button>
|
|
<el-button @click="handleDeleteInTable(scope.$index)" type="text">删除</el-button>
|
|
</template>
|
|
</el-table-column>
|
|
</el-table>
|
|
|
|
<div class="pagination-container">
|
|
<el-pagination
|
|
@size-change="pageSize = $event; loadCourses(true)"
|
|
@current-change="currentPage = $event; loadCourses(true)"
|
|
:current-page="currentPage"
|
|
:page-size="pageSize"
|
|
layout="total, sizes, prev, pager, next, jumper"
|
|
:total="coursesCount"
|
|
:page-sizes="[10, 20, 50, 100]"
|
|
>
|
|
</el-pagination>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</BackgroundWrapper>
|
|
</template>
|
|
|
|
<style scoped>
|
|
html, body {
|
|
height: 100%;
|
|
margin: 0;
|
|
}
|
|
|
|
.background-wrapper {
|
|
position: fixed; /* 确保背景覆盖整个视口 */
|
|
top: 0;
|
|
left: 0;
|
|
width: 100%;
|
|
height: 100%;
|
|
overflow: auto; /* 只在内容溢出时允许滚动 */
|
|
}
|
|
|
|
.center-wrapper {
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
width: 100%;
|
|
height: 100%;
|
|
}
|
|
|
|
.container {
|
|
padding: 20px;
|
|
background: rgba(255, 255, 255, 0.8); /* 为了让内容清晰，可加上一层半透明白色背景 */
|
|
border-radius: 15px;
|
|
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
|
|
max-width: 800px; /* 控制页面内容宽度 */
|
|
width: 100%;
|
|
}
|
|
|
|
.search-container {
|
|
display: flex;
|
|
flex-wrap: wrap;
|
|
gap: 10px;
|
|
}
|
|
|
|
.button-container {
|
|
display: flex;
|
|
gap: 10px;
|
|
margin-bottom: 10px;
|
|
}
|
|
|
|
.el-table {
|
|
margin-bottom: 10px;
|
|
}
|
|
|
|
.pagination-container {
|
|
display: flex;
|
|
justify-content: flex-end;
|
|
margin-bottom: -10px;
|
|
}
|
|
</style> |