<!--
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* @Descripttion: 动态表单渲染器
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* @version: 1.0
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* @Author: sakuya
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* @Date: 2021年9月22日09:26:25
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* @LastEditors:
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* @LastEditTime:
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-->
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<template>
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<el-skeleton v-if="renderLoading || Object.keys(form).length==0" animated />
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<el-form v-else ref="form" :model="form" :label-width="config.labelWidth" :label-position="config.labelPosition" v-loading="loading" element-loading-text="Loading...">
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<el-row :gutter="15">
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<template v-for="(item, index) in config.formItems" :key="index">
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<el-col :span="item.span || 24" v-if="!hideHandle(item)">
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<sc-title v-if="item.component=='title'" :title="item.label"></sc-title>
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<el-form-item v-else :prop="item.name" :rules="rulesHandle(item)">
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<template #label>
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{{item.label}}
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<el-tooltip v-if="item.tips" :content="item.tips">
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<el-icon><el-icon-question-filled /></el-icon>
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</el-tooltip>
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</template>
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<!-- input -->
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<template v-if="item.component=='input'" >
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<el-input v-model="form[item.name]" :placeholder="item.options.placeholder" clearable :maxlength="item.options.maxlength" show-word-limit></el-input>
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</template>
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<!-- checkbox -->
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<template v-else-if="item.component=='checkbox'" >
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<template v-if="item.name" >
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<el-checkbox v-model="form[item.name][_item.name]" :label="_item.label" v-for="(_item, _index) in item.options.items" :key="_index"></el-checkbox>
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</template>
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<template v-else >
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<el-checkbox v-model="form[_item.name]" :label="_item.label" v-for="(_item, _index) in item.options.items" :key="_index"></el-checkbox>
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</template>
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</template>
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<!-- checkboxGroup -->
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<template v-else-if="item.component=='checkboxGroup'" >
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<el-checkbox-group v-model="form[item.name]">
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<el-checkbox v-for="_item in item.options.items" :key="_item.value" :label="_item.value">{{_item.label}}</el-checkbox>
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</el-checkbox-group>
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</template>
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<!-- upload -->
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<template v-else-if="item.component=='upload'" >
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<el-col v-for="(_item, _index) in item.options.items" :key="_index">
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<el-form-item :prop="_item.name">
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<sc-upload v-model="form[_item.name]" :title="_item.label"></sc-upload>
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</el-form-item>
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</el-col>
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</template>
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<!-- switch -->
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<template v-else-if="item.component=='switch'" >
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<el-switch v-model="form[item.name]" />
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</template>
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<!-- select -->
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<template v-else-if="item.component=='select'" >
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<el-select v-model="form[item.name]" :multiple="item.options.multiple" :placeholder="item.options.placeholder" clearable filterable style="width: 100%;">
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<el-option v-for="option in item.options.items" :key="option.value" :label="option.label" :value="option.value"></el-option>
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</el-select>
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</template>
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<!-- cascader -->
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<template v-else-if="item.component=='cascader'" >
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<el-cascader v-model="form[item.name]" :options="item.options.items" clearable></el-cascader>
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</template>
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<!-- date -->
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<template v-else-if="item.component=='date'" >
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<el-date-picker v-model="form[item.name]" :type="item.options.type" :shortcuts="item.options.shortcuts" :default-time="item.options.defaultTime" :value-format="item.options.valueFormat" :placeholder="item.options.placeholder || '请选择'"></el-date-picker>
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</template>
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<!-- number -->
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<template v-else-if="item.component=='number'" >
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<el-input-number v-model="form[item.name]" controls-position="right"></el-input-number>
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</template>
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<!-- radio -->
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<template v-else-if="item.component=='radio'" >
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<el-radio-group v-model="form[item.name]">
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<el-radio v-for="_item in item.options.items" :key="_item.value" :label="_item.value">{{_item.label}}</el-radio>
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</el-radio-group>
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</template>
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<!-- color -->
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<template v-else-if="item.component=='color'" >
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<el-color-picker v-model="form[item.name]" />
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</template>
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<!-- rate -->
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<template v-else-if="item.component=='rate'" >
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<el-rate style="margin-top: 6px;" v-model="form[item.name]"></el-rate>
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</template>
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<!-- slider -->
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<template v-else-if="item.component=='slider'" >
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<el-slider v-model="form[item.name]" :marks="item.options.marks"></el-slider>
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</template>
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<!-- tableselect -->
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<template v-else-if="item.component=='tableselect'" >
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<tableselect-render v-model="form[item.name]" :item="item"></tableselect-render>
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</template>
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<!-- editor -->
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<template v-else-if="item.component=='editor'" >
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<sc-editor v-model="form[item.name]" placeholder="请输入" :height="400"></sc-editor>
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</template>
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<!-- noComponent -->
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<template v-else>
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<el-tag type="danger">[{{item.component}}] Component not found</el-tag>
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</template>
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<div v-if="item.message" class="el-form-item-msg">{{item.message}}</div>
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</el-form-item>
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</el-col>
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</template>
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<el-col :span="24">
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<el-form-item>
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<slot>
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<el-button type="primary" @click="submit">提交</el-button>
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</slot>
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</el-form-item>
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</el-col>
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</el-row>
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</el-form>
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</template>
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<script>
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import http from "@/utils/request"
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import { defineAsyncComponent } from 'vue'
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const tableselectRender = defineAsyncComponent(() => import('./items/tableselect'))
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const scEditor = defineAsyncComponent(() => import('@/components/scEditor'))
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export default {
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props: {
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modelValue: { type: Object, default: () => {} },
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config: { type: Object, default: () => {} },
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loading: { type: Boolean, default: false },
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},
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components: {
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tableselectRender,
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scEditor
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},
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data() {
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return {
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form: {},
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renderLoading: false
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}
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},
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watch:{
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modelValue(){
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if(this.hasConfig){
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this.deepMerge(this.form, this.modelValue)
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}
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},
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config(){
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this.render()
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},
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form:{
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handler(val){
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this.$emit("update:modelValue", val)
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},
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deep: true
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}
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},
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computed: {
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hasConfig(){
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return Object.keys(this.config).length>0
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},
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hasValue(){
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return Object.keys(this.modelValue).length>0
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}
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},
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created() {
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},
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mounted() {
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if(this.hasConfig){
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this.render()
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}
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},
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methods: {
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//构建form对象
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render() {
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this.config.formItems.forEach((item) => {
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if(item.component == 'checkbox'){
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if(item.name){
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const value = {}
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item.options.items.forEach((option) => {
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value[option.name] = option.value
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})
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this.form[item.name] = value
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}else{
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item.options.items.forEach((option) => {
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this.form[option.name] = option.value
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})
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}
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}else if(item.component == 'upload'){
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if(item.name){
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const value = {}
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item.options.items.forEach((option) => {
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value[option.name] = option.value
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})
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this.form[item.name] = value
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}else{
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item.options.items.forEach((option) => {
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this.form[option.name] = option.value
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})
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}
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}else{
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this.form[item.name] = item.value
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}
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})
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if(this.hasValue){
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this.form = this.deepMerge(this.form, this.modelValue)
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}
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this.getData()
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},
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//处理远程选项数据
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getData() {
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this.renderLoading = true
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var remoteData = []
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this.config.formItems.forEach((item) => {
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if(item.options && item.options.remote){
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var req = http.get(item.options.remote.api, item.options.remote.data).then(res=>{
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item.options.items = res.data
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})
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remoteData.push(req)
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}
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})
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Promise.all(remoteData).then(()=>{
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this.renderLoading = false
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})
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},
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//合并深结构对象
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deepMerge(obj1, obj2) {
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let key;
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for (key in obj2) {
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obj1[key] = obj1[key] && obj1[key].toString() === "[object Object]" && (obj2[key] && obj2[key].toString() === "[object Object]") ? this.deepMerge(obj1[key], obj2[key]) : (obj1[key] = obj2[key])
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}
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return obj1
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//return JSON.parse(JSON.stringify(obj1))
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},
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//处理动态隐藏
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hideHandle(item){
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if(item.hideHandle){
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const exp = eval(item.hideHandle.replace(/\$/g,"this.form"))
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return exp
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}
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return false
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},
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//处理动态必填
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rulesHandle(item){
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if(item.requiredHandle){
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const exp = eval(item.requiredHandle.replace(/\$/g,"this.form"))
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var requiredRule = item.rules.find(t => 'required' in t)
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requiredRule.required = exp
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}
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return item.rules
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},
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//数据验证
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validate(valid, obj){
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return this.$refs.form.validate(valid, obj)
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},
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scrollToField(prop){
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return this.$refs.form.scrollToField(prop)
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},
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resetFields(){
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return this.$refs.form.resetFields()
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},
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//提交
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submit(){
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this.$emit("submit", this.form)
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}
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}
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}
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</script>
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<style>
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</style>
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