<template>
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<Select @dropdownVisibleChange="handleFetch" v-bind="$attrs" @change="handleChange" :options="getOptions" v-model:value="state">
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<template #[item]="data" v-for="item in Object.keys($slots)">
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<slot :name="item" v-bind="data || {}"></slot>
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</template>
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<template #suffixIcon v-if="loading">
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<LoadingOutlined spin />
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</template>
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<template #notFoundContent v-if="loading">
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<span>
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<LoadingOutlined spin class="mr-1" />
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{{ t('component.form.apiSelectNotFound') }}
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</span>
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</template>
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</Select>
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</template>
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<script lang="ts">
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import { defineComponent, PropType, ref, watchEffect, computed, unref, watch } from 'vue';
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import { Select } from 'ant-design-vue';
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import { isFunction } from '/@/utils/is';
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import { useRuleFormItem } from '/@/hooks/component/useFormItem';
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import { useAttrs } from '/@/hooks/core/useAttrs';
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import { get, omit } from 'lodash-es';
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import { LoadingOutlined } from '@ant-design/icons-vue';
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import { useI18n } from '/@/hooks/web/useI18n';
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import { propTypes } from '/@/utils/propTypes';
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type OptionsItem = { label: string; value: string; disabled?: boolean };
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export default defineComponent({
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name: 'ApiSelect',
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components: {
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Select,
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LoadingOutlined,
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},
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inheritAttrs: false,
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props: {
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value: [Array, Object, String, Number],
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numberToString: propTypes.bool,
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api: {
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type: Function as PropType<(arg?: Recordable) => Promise<OptionsItem[]>>,
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default: null,
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},
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// api params
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params: {
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type: Object as PropType<Recordable>,
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default: () => ({}),
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},
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// support xxx.xxx.xx
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resultField: propTypes.string.def(''),
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labelField: propTypes.string.def('label'),
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valueField: propTypes.string.def('value'),
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immediate: propTypes.bool.def(true),
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},
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emits: ['options-change', 'change'],
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setup(props, { emit }) {
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const options = ref<OptionsItem[]>([]);
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const loading = ref(false);
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const isFirstLoad = ref(true);
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const emitData = ref<any[]>([]);
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const attrs = useAttrs();
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const { t } = useI18n();
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// Embedded in the form, just use the hook binding to perform form verification
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const [state, setState] = useRuleFormItem(props, 'value', 'change', emitData);
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const getOptions = computed(() => {
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const { labelField, valueField, numberToString } = props;
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return unref(options).reduce((prev, next: Recordable) => {
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if (next) {
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const value = next[valueField];
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prev.push({
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...omit(next, [labelField, valueField]),
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label: next[labelField],
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value: numberToString ? `${value}` : value,
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});
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}
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return prev;
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}, [] as OptionsItem[]);
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});
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watchEffect(() => {
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props.immediate && fetch();
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});
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watch(
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() => props.params,
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() => {
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!unref(isFirstLoad) && fetch();
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},
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{ deep: true }
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);
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async function fetch() {
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const api = props.api;
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if (!api || !isFunction(api)) return;
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options.value = [];
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try {
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loading.value = true;
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const res = await api(props.params);
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if (Array.isArray(res)) {
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options.value = res;
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emitChange();
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return;
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}
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if (props.resultField) {
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options.value = get(res, props.resultField) || [];
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}
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emitChange();
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} catch (error) {
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console.warn(error);
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} finally {
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loading.value = false;
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//--@updateBy-begin----author:liusq---date:20210914------for:判断选择模式，multiple多选情况下的value值空的情况下需要设置为数组------
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unref(attrs).mode == 'multiple' && !Array.isArray(unref(state)) && setState([]);
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//--@updateBy-end----author:liusq---date:20210914------for:判断选择模式，multiple多选情况下的value值空的情况下需要设置为数组------
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}
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}
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async function handleFetch() {
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if (!props.immediate && unref(isFirstLoad)) {
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await fetch();
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isFirstLoad.value = false;
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}
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}
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function emitChange() {
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emit('options-change', unref(getOptions));
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}
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function handleChange(_, ...args) {
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emitData.value = args;
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}
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return { state, attrs, getOptions, loading, t, handleFetch, handleChange };
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},
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});
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</script>
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