One of the challenges I'm facing involves creating a VueJS component with an input field for file type. Below is the code for my component:
<template>
<div class="flex-col justify-start w-full">
<div class="mt-2 block uppercase tracking-wide text-gray-700 text-xs font-bold mb-2">{{ label }}</div>
<input
class="block appearance-none w-full bg-gray-200 border border-gray-200 text-gray-700 py-3 px-4 pr-8 rounded leading-tight focus:outline-none focus:bg-white focus:border-gray-500"
:class="errorDisplay ? 'border-red-500 focus:bg-white focus:border-red-500': ''"
type="file"
:value="value" @input="emitEvent($event)"
ref="input_file"
>
<span v-if="hint" class="text-xs text-gray-400 font-medium">{{ hint }}</span>
<span v-if="errorDisplay" class="text-xs text-pink-600 font-medium">{{ errorDisplay }}</span>
</div>
</template>
<script>
export default {
name: "InputFile",
props: {
label: String,
hint: {
type: String,
default: () => ''
},
error: {
type: Array,
default: () => []
},
placeholder: String,
value: Object,
},
methods: {
emitEvent(event) {
var reader = new FileReader();
reader.readAsDataURL(event.target.files[0]);
reader.onload = () => {
const docs = {
name: event.target.files[0].name,
size: event.target.files[0].size,
lastModifiedDate: event.target.files[0].lastModifiedDate,
base64: reader.result
};
console.log(docs);
this.$emit('input', docs)
};
}
},
computed: {
errorDisplay() {
if(this.error.length)
return this.error.join(', ');
else
return '';
}
}
}
</script>
When calling my component, I encountered the following issue:
<template>
<div class="flex items-center justify-start">
<div class="w-1/2 m-2 rounded-lg shadow-lg border b-gray-400 rounded flex flex-col justify-start items-start p-6 bg-white">
<div class="border-b -m-2 mb-3 px-6 py-2 flex-none w-full justify-start text-gray-700 font-semibold"> Base Controls </div>
<input-file
label="Upload file"
v-model="upload_file"
:error="errors['upload_file']"
>
</input-file>
<div class="mt-4 text-center">
<button @click="submit()" class="inline-block px-4 py-2 rounded-lg shadow-md bg-teal-500 hover:bg-teal-400 focus:outline-none focus:shadow-outline text-white text-sm tracking-wider font-semibold">Submit</button>
</div>
</div>
</div>
</template>
<script>
import InputFile from "../Elements/Forms/Inputs/File";
export default {
name: "Forms",
components: {
InputFile,
},
data() {
return {
upload_file: '',
errors: {},
}
},
methods: {
submit() {
//Submit code...
}
}
}
</script>
An error message I'm encountering reads as follows:
Error in nextTick: "InvalidStateError: Failed to set the 'value' property on 'HTMLInputElement': This input element accepts a filename, which may only be programmatically set to the empty string."
Although the event is being emitted and upload_file is successfully assigned the desired value, I'm still facing this issue. I attempted to change upload_file to an object, but this resulted in an error and the component not being displayed. How can I go about resolving this concern?