fix: 🐛 兼容字典下拉数据源和回显值类型不一致场景

Former-commit-id: 9823b72487d02b4286249fd783a1bc836f1f3b5b
This commit is contained in:
hxr
2023-08-28 23:18:17 +08:00
parent a2c858ecca
commit 5fd62c26fe
2 changed files with 34 additions and 22 deletions

View File

@@ -1,20 +1,18 @@
<template> <template>
<div> <el-select
<el-select v-model="selectedValue"
v-model="selectedValue" :placeholder="placeholder"
:placeholder="placeholder" :disabled="disabled"
:disabled="disabled" clearable
clearable @change="handleChange"
@change="handleChange" >
> <el-option
<el-option v-for="option in options"
v-for="option in options" :key="option.value"
:key="option.value" :label="option.label"
:label="option.label" :value="option.value"
:value="option.value" />
/> </el-select>
</el-select>
</div>
</template> </template>
<script setup lang="ts"> <script setup lang="ts">
@@ -29,8 +27,7 @@ const props = defineProps({
required: true, required: true,
}, },
modelValue: { modelValue: {
type: String, type: [String, Number],
default: "",
}, },
placeholder: { placeholder: {
type: String, type: String,
@@ -46,9 +43,24 @@ const emits = defineEmits(["update:modelValue"]); // 父组件监听事件,同
const options: Ref<OptionType[]> = ref([]); // 字典下拉数据源 const options: Ref<OptionType[]> = ref([]); // 字典下拉数据源
const selectedValue = computed(() => props.modelValue.toString()); // 将父组件的值统一转化String和下拉数据源进行比较避免值的类型不一致导致回显失败 const selectedValue = ref<string | number | undefined>();
function handleChange(val?: string) { watch([options, () => props.modelValue], ([newOptions, newModelValue]) => {
if (newOptions.length === 0) return; // 下拉数据源加载未完成不回显
if (newModelValue == undefined) {
selectedValue.value = undefined;
return;
}
if (typeof newOptions[0].value === "number") {
selectedValue.value = Number(newModelValue);
} else if (typeof newOptions[0].value === "string") {
selectedValue.value = String(newModelValue);
} else {
selectedValue.value = newModelValue;
}
});
function handleChange(val?: string | number | undefined) {
emits("update:modelValue", val); emits("update:modelValue", val);
} }

View File

@@ -1,7 +1,7 @@
<!-- 字典组件示例 --> <!-- 字典组件示例 -->
<script setup lang="ts"> <script setup lang="ts">
const stringValue = ref("1"); // 性别(值为String) const stringValue = ref("1"); // 性别(值为String)
const nmberValue = ref(1); // 性别(值为Number) const numberValue = ref(1); // 性别(值为Number)
</script> </script>
<template> <template>
@@ -22,7 +22,7 @@ const nmberValue = ref(1); // 性别(值为Number)
</el-form-item> </el-form-item>
<el-form-item label="性别"> <el-form-item label="性别">
<dictionary v-model="nmberValue" type-code="gender" /> <dictionary v-model="numberValue" type-code="gender" />
<el-link :underline="false" type="success" class="ml-5" <el-link :underline="false" type="success" class="ml-5"
>值为Number: const value = ref(1); >值为Number: const value = ref(1);
</el-link> </el-link>