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@mini-dev/form

v0.0.3

Published

一个小程序表单组件,用来辅助填写简单表单。

Downloads

6

Readme

Form

一个小程序表单组件,用来辅助填写简单表单。

安装

npm install @mini-dev/form

Usage

    <form-view model="{{viewModel}}" bindchange="onFormChanged" bindsubmit="onFormSubmit">
        <form-plain model-name="type"/>
        <form-input model-name="age" disabled="{{!formEnable}}" type="number"/>
        <form-radio model-name="contract" disabled="{{!formEnable}}"/>
        <form-submit/>
    </form-view>

工作原理

form-view 监测到 model 属性发生改变之后,会将改变同步到所有表单字段组件。 字段组件根据 model-name 属性,获取属于当前组件的属性值,然后根据定义,展示结果。

同时,字段属性会把字段的修改,同步给 form-view,form-view 会收集所有的变更,及时更新 model。

model 的基本配置

model 的基本格式如下:


viewModel = {
            name: {
                name: '姓名',
                value: 'xpy',
                placeholder: '请输入姓名'
            },
            age: {
                name: '年龄',
                value: 22,
                valueType: Number,
            },
            type: {
                name: '职位',
                value: 1,
                getValueView(modelItem) {
                    return modelItem.value === 0 ? '管理员' : '普通员工';
                }
            }}

一个 key 对应一个字段,对于每个字段 name 和 value 是必须的,getValueView 是可选的。

getValueView 的作用是将 value 映射为可读性更好的描述文本,当然,如果在 model 字段中没有配置此方法,会使用字段组件默认的 getValueView。 通常都是直接显示 value,不同的字段组件会定义不同的默认 getValueView。

如上面的例子:type 字段的 value 是 1,如果没有 getValueView 方法,页面就会显示 1,加上了 getValueView 方法之后,页面就显示为 普通员工

如果配置了 valueType,则在 value 发生变化的时候,会先进行 value 的类型转换,再进行后续的处理。 当前支持的 valueType 包括:Number、Boolean。

组件列表

plain
input
textarea
radio
checkbox
picker
file
submit