index.vue
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<!--
* @Description: 表单渲染器，根据json生成表单
-->
<template>
<div class="v-form-container">
<Form class="v-form-model" ref="eFormModel" :model="formModel" v-bind="formModelProps">
<Row>
<FormRender
v-for="(schema, index) of noHiddenList"
:key="index"
:schema="schema"
:formConfig="formConfig"
:formData="formModelNew"
@change="handleChange"
:setFormModel="setFormModel"
@submit="handleSubmit"
@reset="resetFields"
>
<template v-if="schema && schema.componentProps" #[`schema.componentProps!.slotName`]>
<slot
:name="schema.componentProps!.slotName"
v-bind="{ formModel: formModel, field: schema.field, schema }"
></slot>
</template>
</FormRender>
</Row>
</Form>
</div>
</template>
<script lang="ts">
import { computed, defineComponent, PropType, provide, ref, unref } from 'vue';
import FormRender from './components/FormRender.vue';
import { IFormConfig, AForm } from '../../typings/v-form-component';
import { Form, Row, Col } from 'ant-design-vue';
import { useFormInstanceMethods } from '../../hooks/useFormInstanceMethods';
import { IProps, IVFormMethods, useVFormMethods } from '../../hooks/useVFormMethods';
import { useVModel } from '@vueuse/core';
import { omit } from 'lodash-es';
export default defineComponent({
name: 'VFormCreate',
components: {
FormRender,
Form,
Row,
},
props: {
fApi: {
type: Object,
},
formModel: {
type: Object,
default: () => ({}),
},
formConfig: {
type: Object as PropType<IFormConfig>,
required: true,
},
},
emits: ['submit', 'change', 'update:fApi', 'update:formModel'],
setup(props, context) {
const wrapperComp = props.formConfig.layout == 'vertical' ? Col : Row;
const { emit } = context;
const eFormModel = ref<AForm | null>(null);
const formModelNew = computed({
get: () => props.formModel,
set: (value) => emit('update:formModel', value),
});
const noHiddenList = computed(() => {
return (
props.formConfig.schemas &&
props.formConfig.schemas.filter((item) => item.hidden !== true)
);
});
const fApi = useVModel(props, 'fApi', emit);
const { submit, validate, clearValidate, resetFields, validateField } =
useFormInstanceMethods(props, formModelNew, context, eFormModel);
const { linkOn, ...methods } = useVFormMethods(
{ formConfig: props.formConfig, formData: props.formModel } as unknown as IProps,
context,
eFormModel,
{
submit,
validate,
validateField,
resetFields,
clearValidate,
},
);
fApi.value = methods;
const handleChange = (_event) => {
const { schema, value } = _event;
const { field } = unref(schema);
linkOn[field!]?.forEach((formItem) => {
formItem.update?.(value, formItem, fApi.value as IVFormMethods);
});
};
/**
* 获取表单属性
*/
const formModelProps = computed(
() => omit(props.formConfig, ['disabled', 'labelWidth', 'schemas']) as Recordable,
);
const handleSubmit = () => {
submit();
};
provide('formModel', formModelNew);
const setFormModel = (key, value) => {
formModelNew.value[key] = value;
};
provide<(key: String, value: any) => void>('setFormModelMethod', setFormModel);
// 把祖先组件的方法项注入到子组件中，子组件可通过inject获取
return {
eFormModel,
submit,
validate,
validateField,
resetFields,
clearValidate,
handleChange,
formModelProps,
handleSubmit,
setFormModel,
formModelNew,
wrapperComp,
noHiddenList,
};
},
});
</script>
<style lang="less" scoped>
.v-form-model {
overflow: hidden;
}
</style>