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445 lines
11 KiB
445 lines
11 KiB
4 years ago
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<template>
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<view class="uni-forms-item" :class="{'uni-forms-item--border':border,'is-first-border':border&&isFirstBorder,'uni-forms-item-error':msg}">
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<view class="uni-forms-item__box">
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<view class="uni-forms-item__inner" :class="['is-direction-'+labelPos,]">
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<view v-if="label" class="uni-forms-item__label" :style="{width:labelWid+'px',justifyContent: justifyContent}">
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<slot name="left">
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<uni-icons v-if="leftIcon" class="label-icon" size="16" :type="leftIcon" :color="iconColor" />
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<text class="label-text">{{label}}</text>
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<text v-if="required" class="is-required">*</text>
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</slot>
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</view>
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<view class="uni-forms-item__content" :class="{'is-input-error-border': msg}">
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<slot></slot>
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</view>
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</view>
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<view v-if="msg" class="uni-error-message" :class="{'uni-error-msg--boeder':border}" :style="{
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paddingLeft: (labelPos === 'left'? Number(labelWid)+5:5) + 'px'
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}"><text class="uni-error-message-text">{{ showMsg === 'undertext' ? msg:'' }}</text></view>
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</view>
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</view>
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</template>
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<script>
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/**
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* FormsItem 表单子组件
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* @description 此组件可以实现表单的输入与校验，包括 "text" 和 "textarea" 类型。
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* @tutorial https://ext.dcloud.net.cn/plugin?id=2773
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* @property {String} name 表单域的属性名，在使用校验规则时必填
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* @property {Boolean} required 左边显示红色"*"号，样式显示不会对校验规则产生效果（默认 false）
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* @property {String} validate-trigger = [bind|submit] 表单校验时机（默认 submit）
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* @value bind 数据发生变化时触发
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* @value submit 提交表单是触发
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* @property {String} left-icon label左边的图标，限uni-ui的图标名称
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* @property {String} icon-color 左边通过icon配置的图标的颜色 （默认 #606266）
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* @property {String} label 输入框左边的文字提示
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* @property {Number} label-width label的宽度，单位px
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* @property {String} label-align = [left|center|right] label的文字对齐方式（默认 left）
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* @value left 左对齐
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* @value center 居中对齐
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* @value right 右对齐
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* @property {String} label-position = [top|left] label的文字的位置（默认 left）
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* @value top 顶部显示 label
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* @value left 左侧显示 label
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* @property {String} error-message 显示的错误提示内容，如果为空字符串或者false，则不显示错误信息
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*/
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export default {
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name: "uniFormsItem",
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props: {
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// 自定义内容
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custom: {
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type: Boolean,
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default: false
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},
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// 是否显示报错信息
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showMessage: {
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type: Boolean,
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default: true
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},
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name: String,
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required: Boolean,
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validateTrigger: {
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type: String,
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default: ''
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},
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leftIcon: String,
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iconColor: {
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type: String,
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default: '#606266'
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},
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label: String,
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// 左边标题的宽度单位px
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labelWidth: {
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type: [Number, String],
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default: ''
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},
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// 对齐方式，left|center|right
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labelAlign: {
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type: String,
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default: ''
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},
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// lable的位置，可选为 left-左边，top-上边
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labelPosition: {
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type: String,
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default: ''
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},
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errorMessage: {
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type: [String, Boolean],
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default: ''
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}
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},
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data() {
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return {
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errorTop: false,
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errorBottom: false,
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labelMarginBottom: '',
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errorWidth: '',
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errMsg: '',
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val: '',
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labelPos: '',
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labelWid: '',
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labelAli: '',
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showMsg: 'undertext',
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border: false,
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isFirstBorder: false
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};
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},
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computed: {
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msg() {
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return this.errorMessage || this.errMsg;
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},
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fieldStyle() {
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let style = {}
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if (this.labelPos == 'top') {
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style.padding = '0 0'
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this.labelMarginBottom = '6px'
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}
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if (this.labelPos == 'left' && this.msg !== false && this.msg != '') {
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style.paddingBottom = '0px'
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this.errorBottom = true
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this.errorTop = false
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} else if (this.labelPos == 'top' && this.msg !== false && this.msg != '') {
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this.errorBottom = false
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this.errorTop = true
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} else {
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// style.paddingBottom = ''
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this.errorTop = false
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this.errorBottom = false
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}
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return style
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},
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// uni不支持在computed中写style.justifyContent = 'center'的形式，故用此方法
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justifyContent() {
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if (this.labelAli === 'left') return 'flex-start';
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if (this.labelAli === 'center') return 'center';
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if (this.labelAli === 'right') return 'flex-end';
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}
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},
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watch: {
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validateTrigger(trigger) {
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this.formTrigger = trigger
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}
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},
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created() {
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this.form = this.getForm()
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this.group = this.getForm('uniGroup')
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this.formRules = []
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this.formTrigger = this.validateTrigger
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if (this.form) {
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this.form.childrens.push(this)
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}
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this.init()
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},
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destroyed() {
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if (this.form) {
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this.form.childrens.forEach((item, index) => {
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if (item === this) {
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this.form.childrens.splice(index, 1)
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delete this.form.formData[item.name]
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}
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})
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}
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},
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methods: {
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init() {
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if (this.form) {
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let {
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formRules,
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validator,
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formData,
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value,
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labelPosition,
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labelWidth,
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labelAlign,
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errShowType
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} = this.form
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this.labelPos = this.labelPosition ? this.labelPosition : labelPosition
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this.labelWid = this.label ? (this.labelWidth ? this.labelWidth : labelWidth) : 0
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this.labelAli = this.labelAlign ? this.labelAlign : labelAlign
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// 判断第一个 item
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if (!this.form.isFirstBorder) {
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this.form.isFirstBorder = true
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this.isFirstBorder = true
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}
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// 判断 group 里的第一个 item
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if (this.group) {
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if (!this.group.isFirstBorder) {
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this.group.isFirstBorder = true
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this.isFirstBorder = true
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}
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}
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this.border = this.form.border
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this.showMsg = errShowType
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if (formRules) {
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this.formRules = formRules[this.name] || {}
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}
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this.validator = validator
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} else {
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this.labelPos = this.labelPosition || 'left'
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this.labelWid = this.labelWidth || 65
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this.labelAli = this.labelAlign || 'left'
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}
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},
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/**
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* 获取父元素实例
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*/
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getForm(name = 'uniForms') {
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let parent = this.$parent;
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let parentName = parent.$options.name;
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while (parentName !== name) {
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parent = parent.$parent;
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if (!parent) return false
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parentName = parent.$options.name;
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}
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return parent;
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},
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/**
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* 移除该表单项的校验结果
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*/
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clearValidate() {
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this.errMsg = ''
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},
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setValue(value) {
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if (this.name) {
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if (this.errMsg) this.errMsg = ''
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this.form.formData[this.name] = this.form._getValue(this.name, value)
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if (!this.formRules || (typeof(this.formRules) && JSON.stringify(this.formRules) === '{}')) return
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this.triggerCheck(this.form._getValue(this.name, value))
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}
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},
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/**
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* 校验规则
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* @param {Object} value
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*/
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async triggerCheck(value, callback) {
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let promise = null;
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this.errMsg = ''
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// if no callback, return promise
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// if (callback && typeof callback !== 'function' && Promise) {
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// promise = new Promise((resolve, reject) => {
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// callback = function(valid) {
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// !valid ? resolve(valid) : reject(valid)
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// };
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// });
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// }
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// if (!this.validator) {
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// typeof callback === 'function' && callback(null);
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// if (promise) return promise
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// }
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if (!this.validator) return
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const isNoField = this.isRequired(this.formRules.rules || [])
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let isTrigger = this.isTrigger(this.formRules.validateTrigger, this.validateTrigger, this.form.validateTrigger)
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let result = null
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if (!(!isTrigger)) {
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result = await this.validator.validateUpdate({
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[this.name]: value
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}, this.form.formData)
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}
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// 判断是否必填,非必填，不填不校验，填写才校验
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if (!isNoField && (value === undefined || value === '')) {
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result = null
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}
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if (isTrigger && result && result.errorMessage) {
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const inputComp = this.form.inputChildrens.find(child => child.rename === this.name)
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if (inputComp) {
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inputComp.errMsg = result.errorMessage
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}
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if (this.form.errShowType === 'toast') {
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uni.showToast({
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title: result.errorMessage || '校验错误',
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icon: 'none'
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})
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}
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if (this.form.errShowType === 'modal') {
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uni.showModal({
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title: '提示',
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content: result.errorMessage || '校验错误'
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})
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}
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}
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this.errMsg = !result ? '' : result.errorMessage
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// 触发validate事件
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this.form.validateCheck(result ? result : null)
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// typeof callback === 'function' && callback(result ? result : null);
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// if (promise) return promise
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},
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/**
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* 触发时机
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* @param {Object} event
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*/
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isTrigger(rule, itemRlue, parentRule) {
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let rl = true;
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// bind submit
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if (rule === 'submit' || !rule) {
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if (rule === undefined) {
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if (itemRlue !== 'bind') {
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if (!itemRlue) {
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return parentRule === 'bind' ? true : false
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}
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return false
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}
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return true
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}
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return false
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}
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return true;
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},
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// 是否有必填字段
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isRequired(rules) {
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let isNoField = false
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for (let i = 0; i < rules.length; i++) {
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const ruleData = rules[i]
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if (ruleData.required) {
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isNoField = true
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break
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}
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}
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return isNoField
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}
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}
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};
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</script>
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<style scoped>
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.uni-forms-item {
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position: relative;
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padding: 0px;
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text-align: left;
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color: #333;
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font-size: 14px;
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}
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.uni-forms-item__box {
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position: relative;
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}
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.uni-forms-item__inner {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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padding-bottom: 22px;
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}
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.is-direction-left {
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flex-direction: row;
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}
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.is-direction-top {
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flex-direction: column;
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}
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.uni-forms-item__label {
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/* #ifndef APP-NVUE */
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display: flex;
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flex-shrink: 0;
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box-sizing: border-box;
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/* #endif */
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flex-direction: row;
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align-items: center;
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width: 65px;
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padding: 5px 0;
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height: 36px;
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margin-right: 5px;
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}
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.uni-forms-item__label .label-text {
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font-size: 14px;
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color: #333;
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}
|
||
|
|
|
||
|
|
.uni-forms-item__content {
|
||
|
|
/* #ifndef APP-NVUE */
|
||
|
|
width: 100%;
|
||
|
|
box-sizing: border-box;
|
||
|
|
min-height: 36px;
|
||
|
|
/* #endif */
|
||
|
|
flex: 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
.label-icon {
|
||
|
|
margin-right: 5px;
|
||
|
|
margin-top: -1px;
|
||
|
|
}
|
||
|
|
|
||
|
|
.is-required {
|
||
|
|
color: #dd524d;
|
||
|
|
}
|
||
|
|
|
||
|
|
.uni-error-message {
|
||
|
|
position: absolute;
|
||
|
|
bottom: 0px;
|
||
|
|
left: 0;
|
||
|
|
text-align: left;
|
||
|
|
}
|
||
|
|
|
||
|
|
.uni-error-message-text {
|
||
|
|
line-height: 22px;
|
||
|
|
color: #dd524d;
|
||
|
|
font-size: 12px;
|
||
|
|
}
|
||
|
|
|
||
|
|
.uni-error-msg--boeder {
|
||
|
|
position: relative;
|
||
|
|
bottom: 0;
|
||
|
|
line-height: 22px;
|
||
|
|
}
|
||
|
|
|
||
|
|
.is-input-error-border {
|
||
|
|
border-color: #dd524d;
|
||
|
|
}
|
||
|
|
|
||
|
|
.uni-forms-item--border {
|
||
|
|
margin-bottom: 0;
|
||
|
|
padding: 10px 0;
|
||
|
|
border-top: 1px #eee solid;
|
||
|
|
}
|
||
|
|
|
||
|
|
.uni-forms-item--border .uni-forms-item__inner {
|
||
|
|
padding: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
.uni-forms-item-error {
|
||
|
|
padding-bottom: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
.is-first-border {
|
||
|
|
/* #ifndef APP-NVUE */
|
||
|
|
border: none;
|
||
|
|
/* #endif */
|
||
|
|
/* #ifdef APP-NVUE */
|
||
|
|
border-width: 0;
|
||
|
|
/* #endif */
|
||
|
|
}
|
||
|
|
</style>
|