perf[uploadExcel]: add beforeUpload hock
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@ -12,6 +12,10 @@
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import XLSX from 'xlsx'
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export default {
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props: {
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beforeUpload: Function,
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onSuccess: Function
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},
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data() {
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return {
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loading: false,
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@ -25,7 +29,7 @@ export default {
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generateDate({ header, results }) {
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this.excelData.header = header
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this.excelData.results = results
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this.$emit('success', this.excelData)
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this.onSuccess && this.onSuccess(this.excelData)
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},
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handleDrop(e) {
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e.stopPropagation()
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@ -36,8 +40,8 @@ export default {
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this.$message.error('Only support uploading one file!')
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return
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}
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const itemFile = files[0] // only use files[0]
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this.readerData(itemFile)
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const rawFile = files[0] // only use files[0]
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this.upload(rawFile)
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e.stopPropagation()
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e.preventDefault()
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},
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@ -51,13 +55,23 @@ export default {
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},
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handleClick(e) {
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const files = e.target.files
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const itemFile = files[0] // only use files[0]
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if (!itemFile) return
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this.readerData(itemFile).then(() => {
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this.$refs['excel-upload-input'].value = null // fix can't select the same excel
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})
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const rawFile = files[0] // only use files[0]
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if (!rawFile) return
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this.upload(rawFile)
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},
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readerData(itemFile) {
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upload(rawFile) {
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this.$refs['excel-upload-input'].value = null // fix can't select the same excel
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if (!this.beforeUpload) {
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this.readerData(rawFile)
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return
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}
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const before = this.beforeUpload(rawFile)
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if (before) {
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this.readerData(rawFile)
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}
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},
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readerData(rawFile) {
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this.loading = true
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return new Promise((resolve, reject) => {
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const reader = new FileReader()
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@ -73,7 +87,7 @@ export default {
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this.loading = false
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resolve()
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}
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reader.readAsArrayBuffer(itemFile)
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reader.readAsArrayBuffer(rawFile)
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})
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},
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fixdata(data) {
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@ -1,6 +1,6 @@
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<template>
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<div class="app-container">
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<upload-excel-component @success='handleSuccess'></upload-excel-component>
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<upload-excel-component :on-success='handleSuccess' :before-upload="beforeUpload"></upload-excel-component>
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<el-table :data="tableData" border highlight-current-row style="width: 100%;margin-top:20px;">
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<el-table-column v-for='item of tableHeader' :prop="item" :label="item" :key='item'>
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</el-table-column>
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@ -21,6 +21,18 @@ export default {
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}
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},
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methods: {
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beforeUpload(file) {
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const isLt2M = file.size / 1024 / 1024 < 1
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if (isLt2M) {
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return true
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}
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this.$message({
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message: 'Please do not upload files larger than 2m in size.',
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type: 'warning'
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})
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return false
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},
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handleSuccess({ results, header }) {
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this.tableData = results
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this.tableHeader = header
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