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This is an experimental plugin adding support for forms
inside kea logic, with full TypeScript/TypeGen support.
kea-forms
requires kea-typegen 1.1.5+
and kea 2.4.5+
.
yarn add kea-forms
Set it up like all other kea plugins:
import { Provider, resetContext } from 'kea'
import { formsPlugin } from 'kea-forms'
resetContext({
plugins: [formsPlugin],
})
Code like this:
import { kea } from 'kea-forms'
import { forms } from 'kea-forms'
export interface UserFormType {
name: string
email: string
}
export const formsLogic = kea<formsLogicType<UserFormType>>([
// ... actions, reducers, ...
forms({
userForm: {
defaults: {
name: '',
email: '',
} as UserFormType,
errors: (values) => ({
name: !values.name && 'Please enter a name',
email: !values.email
? 'Please enter an email'
: !validateEmail(values.email)
? 'Please enter a valid email'
: null,
}),
submit: (formValues) => {
console.log('submitting!', formValues)
},
showErrorsOnTouch: true,
alwaysShowErrors: false,
},
}),
// ... other listeners, etc
])
Produces the following actions and values:
interface formsLogicType {
actions: {
setUserFormValue: (key: string, value: any) => void
setUserFormValues: (values: Partial<UserFormType>) => void
touchUserFormField: (key: string) => void
resetUserForm: (values?: UserFormType) => void
submitUserForm: () => void
submitUserFormRequest: (userForm: UserFormType) => void
submitUserFormSuccess: (userForm: UserFormType) => void
submitUserFormFailure: (error: Error) => void
}
values: {
userForm: UserFormType
userFormChanges: DeepPartial<UserFormType>
userFormTouches: DeepPartialMap<UserFormType, boolean>
isUserFormSubmitting: boolean
showUserFormErrors: boolean
userFormChanged: boolean
userFormTouched: boolean
userFormValidationErrors: DeepPartialMap<UserFormType, ValidationErrorType>
userFormHasErrors: boolean
userFormErrors: DeepPartialMap<UserFormType, ValidationErrorType>
isUserFormValid: boolean
}
}
Then use the provided Form
and Field
helpers inside your component:
import { formsLogic } from './formsLogic'
import { useActions, useValues } from 'kea'
import { Form, Field } from 'kea-forms'
function MyForm() {
const { isUserFormSubmitting } = useValues(formsLogic)
const { setUserFormValue } = useActions(formsLogic)
return (
<div>
<p>Demonstrating a simple form below</p>
<Form logic={formsLogic} form="userForm">
<Field name="name" label="Name">
{/* "value" and "onChange" added automatically */}
<input className="form-input" />
</Field>
<button type="button" onClick={() => setUserFormValue('guest', '')}>
No Guest
</button>
<button type="button" onClick={() => setUserFormValue('guest', 'Other Name')}>
Other Guest
</button>
<Field name="subscribe">
{({ onChange, value }) => (
<label>
<input type="checkbox" onChange={(e) => onChange(e.target.checked)} value={value} /> Subscribe to our
newsletter!!
</label>
)}
</Field>
<div>
<input type="submit" value={isUserFormSubmitting ? '... ' : 'Submit Form!'} className="form-submit" />
</div>
</Form>
</div>
)
}
See the code in the demo
folder for more.
3.2.0
FAQs
Form helpers for Kea
The npm package kea-forms receives a total of 3,495 weekly downloads. As such, kea-forms popularity was classified as popular.
We found that kea-forms demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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