blog-admin-web/src/views/api/SourceImage.vue

<template>
<div>
  <el-alert type="info" show-icon :closable="false" >
    <template #title>上传要求</template>
    图片格式为{{allowUploadExt.join('、')}}，文件大小不超过10MB。
  </el-alert>
  <div class="btn-container" style="margin-top:10px;">
    <el-upload
      action="/api/source-image/upload"
      accept="image/jpeg,image/png,image/svg+xml,image/x-icon"
      name="image"
      :headers="{token: $store.state.loginInfo.token}"
      :before-upload="beforeUpload"
      :on-success="uploadSuccess"
      :on-error="uploadError" 
      auto-upload
      :show-file-list="false"
      style="display: inline-block;margin-right: 10px;">
      <el-button type="primary" icon="Upload" :loading="isUploading">上传图片</el-button>
    </el-upload>
    <el-button type="danger" @click="deleteAll" style="vertical-align: bottom">批量删除</el-button>
  </div>
  <div class="table-container">
    <el-table :data="sourceImageData" v-loading="loading" stripe @selection-change="dataSelect">
      <el-table-column type="selection" width="55" />
      <el-table-column prop="hash" label="md5" width="300" />
      <el-table-column prop="size" label="文件大小" >
        <template #default="scope">
          {{ prettyBytes(scope.row.size) }}
        </template>
      </el-table-column>
      <el-table-column prop="mime" label="MIME" />
      <el-table-column prop="label" label="标签" >
        <template #default="scope">
          <el-tag v-for="label in scope.row.label" :key="label" effect="plain">{{label}}</el-tag>
        </template>
      </el-table-column>
      <el-table-column prop="created_at" label="上传时间" >
        <template #default="scope">
          {{ datetimeFormat(scope.row.created_at) }}
        </template>
      </el-table-column>
      <el-table-column label="操作" >
        <template #default="scope">
          <el-button link icon="EditPen" type="primary" plain @click="modifyTags(scope.row)" title="修改标签"></el-button>
          <el-button link icon="View" plain @click="preview(scope.row)" title="预览"></el-button>
        </template>
      </el-table-column>
    </el-table>
  </div>
  <div class="page-container">
    <el-pagination background 
      :page-sizes="$store.state.pageSizeOpts"
      :layout="$store.state.pageLayout"
      :current-page="search.pageNum"
      :total="total"
      @size-change="pageSizeChange"
      @current-change="pageChange">
    </el-pagination>
  </div>
  <el-dialog v-model="modifyModal" title="修改标签" width="630px" @closed="loadData">
    <el-transfer
      v-model="curModifyLabels"
      filterable
      :render-content="renderFunc"
      :titles="['可选标签', '已选标签']"
      :format="{
        noChecked: '${total}',
        hasChecked: '${checked}/${total}',
      }"
      @change="tarnsferChange"
      :data="labels"
    ></el-transfer>
  </el-dialog>
</div>
</template>
<script lang="ts">
import { Options } from 'vue-class-component'
import { ElMessage, ElMessageBox } from 'element-plus'
import prettyBytes from 'pretty-bytes'
import { MsgResult, Page } from '@/model/common.dto'
import BaseList from '@/model/baselist'
import { SourceImageModel } from '@/model/api/source-image'
import { h } from 'vue'

let selectedData: string[] = []
@Options({
  name: 'SourceImage',
})
export default class SourceImage extends BaseList<Page> {
  prettyBytes = prettyBytes
  search = new Page()
  allowUploadExt = ['jpg','jpeg','png','svg','ico']
  sourceImageData: SourceImageModel[] = []
  curModifyLabels: string[] = []
  labelList: string[] = []
  curId: string | null = null
  modifyModal: boolean = false
  isUploading: boolean = false
  renderFunc(h: Function, option: any) {
    return h('span', null, option.label)
  }
  get labels() {
    return this.labelList.map(item => {
      return { key: item, label: item }
    })
  }
  async loadData(): Promise<void> {
    this.loading = true
    const data = await this.$http.get<Page, any>('/api/v1/source-image/list', {params:this.search})
    selectedData = []
    this.loading = false
    this.total = data.total
    this.sourceImageData = data.data
  }
  deleteAll(): void {
    if(!selectedData.length) {
      ElMessage.warning('请选择要删除的数据')
      return
    }
    ElMessageBox.confirm(`是否确认删除选中的${selectedData.length}条数据？`, '确认删除', {type: 'warning'}).then(async () => {
      await this.$http.delete('/api/v1/source-image/delete', {params:{_ids: selectedData}})
      ElMessage.success('删除成功')
      this.loadData()
    }).catch(() => {})
  }
  dataSelect(selection: SourceImageModel[]): void {
    selectedData = selection.map(item => item._id)
  }
  beforeUpload(file: File): boolean {
    if(file.size > 10 << 20) {
      ElMessage.warning('文件大小超过10MB')
      return false
    }
    this.isUploading = true
    return true
  }
  uploadSuccess(response: MsgResult): void {
    if(response.status) {
      ElMessage.success(response.message)
      this.loadData()
    } else {
      ElMessage.warning(response.message)
    }
    this.isUploading = false
  }
  uploadError(error: Error): void {
    this.isUploading = false
    ElMessage.error(error.message)
  }
  preview(row: SourceImageModel): void {
    ElMessageBox({
      title: '图片预览',
      message: h('img', { style: `width:500px`, src: `/api/v1/common/randomBg?id=${row._id}` }, ''),
      showCancelButton: false,
      confirmButtonText: '关闭',
      customStyle: {width: '530px', maxWidth: 'unset'}
    }).catch(() => {})
  }
  modifyTags(item: SourceImageModel): void {
    this.curModifyLabels.length = 0
    if(item.label) {
      this.curModifyLabels.push(...item.label)
    }
    this.curId = item._id
    this.modifyModal = true
  }
  async tarnsferChange(newTargetKeys: string[], direction: 'right' | 'left', moveKeys: string[]) {
    await this.$http.post('/api/v1/source-image/updateLabel', {id: this.curId, labels: newTargetKeys})
  }
  created() {
    this.$http.get<never, any>('/api/v1/common/config/image_label').then(data => {
      this.labelList.push(...data)
      this.loadData()
    })
  }
}
</script>