useForm

Overview

Generate and provide a form context for a form, using the provided initial values, including methods to update the form's values, errors, messages, touched state, modified state, and to reset the form.

Signature

useForm(props)

Parameters

Name	Type	Required	Description
props	object	yes	The form context's initial values.

props Properties

Name	Type	Required	Default	Description
initialValues	object			The form's initial values. Not mutated, but changes reset the form.

Returns

FormContext

Examples

<script setup>
import Button from "@vueda/controls/button/Button.vue"
import { ConfirmationRequiredError, ServerFeedbackError } from "@vueda/utils/errors.js";
const myState = reactive({
    submitting: false,
    // when initialValues is changed, the form's values are reset to match
    initialValues: {},
});
const formContext = useForm(myState);
const handleSubmit = async () => {
    try {
        myState.submitting = true;
        // allow all validation to run
        formContext.setAllTouched();
        await nextTick();
        if (formContext.state.anyError) {
            return;
        }
        if (!formContext.state.anyModified) {
            return;
        }
        await submitToServer(formContext.state.submittingValues);
    } catch (e) {
        if (e instanceof ServerFeedbackError && !(e instanceof ConfirmationRequiredError)) {
            formContext.handleServerFormValidationError(e);
            return;
        }
        throw e;
    } finally {
        myState.submitting = false;
    }
};
</script>
<template>
<form @submit.prevent="handleSubmit">
    <form-message type="error" />
    <form-message type="message" />
    <form-field name="field1" label="Field 1">
        <form-label>
            <widget-input />
        </form-label>
    </form-field>
    <form-field name="field2" label="Field 2" validation="numeric" :max-value="100" :min-value="1">
        <form-label>
            <widget-input step="1" />
        </form-label>
    </form-field>
    <Button type="submit">Submit</Button>
</form>
</template>

Source

client/lib/use/useForm.js:660