发请求，支持捕获数据

Tevin

2022-07-18 a6bb16a7788b3ac4de10183ebe42864100cf2cdd

 forms/form/CFormItem.vue

@@ -1,22 +1,12 @@
/**
 * CFormItem
 * CFormItem - 表单套装组件，单项包囊器
 * @author Tevin
 * @tutorial rules see https://github.com/yiminghe/async-validator#type
 */

<template>
    <view class="c-form-item">
        <view class="c-form-item-label">
            <text
                class="required"
                v-if="required"
            >*</text>
            <text>{{label || name}}</text>
        </view>
        <slot
            :value="formData[name]"
            :onChange="evt=>onChange(evt)"
        />
        <slot :itemRes="itemRes" />
    </view>
</template>

@@ -27,14 +17,62 @@
export default {
    name: 'CFormItem',
    props: {
        // 表单数据资源（表单组件内部机制专用）
        formRes: Object,
        // 表单项字段键名
        name: String,
        // 表单项中文名
        label: String,
        // 表单项验证规则之是否必填
        required: Boolean,
        // 表单项验证规则之复合规则
        //   例如：[{type:'string', min: 2, max: 100}]
        //   常用项：
        //     type        string           类型，常见有 string、number、boolean、array、object、url、email
        //     len         number           string 类型时为字符串长度；number 类型时为确定数字； array 类型时为数组长度
        //     max         number           必须设置 type：string 类型为字符串最大长度；number 类型时为最大值；array 类型时为数组最大长度
        //     min         number           必须设置 type：string 类型为字符串最小长度；number 类型时为最小值；array 类型时为数组最小长度
        //     pattern     RegExp           正则表达式匹配
        //     required    boolean          是否为必选字段
        //     transform   (value) => any   将字段值转换成目标值后进行校验
        //     message     string           错误信息，不设置时会通过模板自动生成
        rules: Array,
        formData: Object,
        // 表单是否禁用
        disabled: Boolean,
    },
    data() {
        return {};
        return {
            error: false,
        };
    },
    computed: {
        itemRes() {
            return {
                formData: this.formRes.formData,
                name: this.name,
                label: this.label,
                required: this.isRequired,
                disabled: this.disabled,
                error: this.error,
                onChange: evt => this.onChange(evt),
            };
        },
        isRequired() {
            if (this.required) {
                return true;
            } else {
                if (!this.rules || this.rules.length === 0) {
                    return false;
                } else if (this.rules.length > 0) {
                    for (let rule of this.rules) {
                        if (rule.required) {
                            return true;
                        }
                    }
                    return false;
                }
            }
        },
    },
    methods: {
        onChange(evt) {
@@ -46,15 +84,16 @@
                    !hasOwn.call(evt, 'constructor') &&
                    !hasOwn.call(evt.constructor.prototype, 'isPrototypeOf')
                ) {
                    throw new Error('错误的表单项 onChange 参数类型！（At: ' + this.name + '）');
                    return;
                    throw new Error(
                        '错误的表单项 onChange 参数类型！（At: ' + this.name + '）'
                    );
                }
            }
            // 未改变值不触发
            if (this.formData[this.name] === evt) {
            if (this.formRes.formData[this.name] === evt) {
                return;
            }
            this.formData.$handleChange({
            this.formRes.$handleChange({
                [this.name]: evt,
            });
        },
@@ -63,13 +102,15 @@
        this.$nextTick(() => {
            // 未设置验证
            if (!this.required && !this.rules) {
                this.formData.$regItemValidator(this.name, () => {
                this.formRes.$regItemValidator(this.name, validateType => {
                    this.error = false;
                    return Promise.resolve({
                        name: this.name,
                        passed: true,
                    });
                });
            } else {
                // 验证规则
                const descriptor = this.rules || [];
                if (this.required) {
                    descriptor.unshift({
@@ -79,20 +120,31 @@
                const validator = new Schema({
                    [this.name]: descriptor,
                });
                validator.messages(validateMsgs); // 自定义验证消息
                this.formData.$regItemValidator(this.name, () => {
                // 汉化通用验证消息
                validator.messages(validateMsgs);
                // 注册验证
                let errTimer = null;
                this.formRes.$regItemValidator(this.name, validateType => {
                    return validator
                        .validate({
                            [this.name]: this.formData[this.name],
                            [this.name]: this.formRes.formData[this.name],
                        })
                        .then(
                            (res) => {
                            res => {
                                this.error = false;
                                return {
                                    name: this.name,
                                    passed: true,
                                };
                            },
                            ({ errors, fields }) => {
                                if (validateType !== 'msgOnly') {
                                    this.error = true;
                                    clearTimeout(errTimer);
                                    errTimer = setTimeout(() => {
                                        this.error = false;
                                    }, 5000);
                                }
                                return {
                                    name: this.name,
                                    passed: false,
@@ -108,7 +160,7 @@
        });
    },
    beforeDestroy() {
        this.formData.$regItemValidator(this.name, null);
        this.formRes.$regItemValidator(this.name, null);
    },
};
</script>