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React Formik utilise submitForm en dehors de <Formik />

Comportement actuel

<Formik
    isInitialValid
    initialValues={{ first_name: 'Test', email: '[email protected]' }}
    validate={validate}
    ref={node => (this.form = node)}
    onSubmitCallback={this.onSubmitCallback}
    render={formProps => {
        const fieldProps = { formProps, margin: 'normal', fullWidth: true, };
        const {values} = formProps;
        return (
            <Fragment>
                <form noValidate>
                    <TextField
                        {...fieldProps}
                        required
                        autoFocus
                        value={values.first_name}
                        type="text"
                        name="first_name"

                    />

                    <TextField
                        {...fieldProps}
                        name="last_name"
                        type="text"
                    />

                    <TextField
                        {...fieldProps}
                        required
                        name="email"
                        type="email"
                        value={values.email}

                    />
                </form>
                <Button onClick={this.onClick}>Login</Button>
            </Fragment>
        );
    }}
/>

J'essaie cette solution https://github.com/jaredpalmer/formik/issues/73#issuecomment-31716977 mais elle me renvoie toujours Uncaught TypeError: _this.props.onSubmit is not a function

Quand j'ai essayé de console.log(this.form) il y a submitForm fonction.

Des gars de solution?

- Version Formik: dernière - React Version: v16 - OS: Mac OS

reactjsformik
8
ssuhat

trouvé le coupable.

Il n'y a plus de onSubmitCallback sur les accessoires Formik. Devrait le changer en onSubmit

0
ssuhat

Vous pouvez lier formikProps.submitForm (Soumission programmatique de Formik) à un composant parent, puis déclenchez la soumission du parent:

import React from 'react';
import { Formik } from 'formik';

class MyForm extends React.Component {
    render() {
        const { bindSubmitForm } = this.props;
        return (
            <Formik
                initialValues={{ a: '' }}
                onSubmit={(values, { setSubmitting }) => {
                    console.log({ values });
                    setSubmitting(false);
                }}
            >
                {(formikProps) => {
                    const { values, handleChange, handleBlur, handleSubmit } = formikProps;

                    // bind the submission handler remotely
                    bindSubmitForm(formikProps.submitForm);

                    return (
                        <form noValidate onSubmit={handleSubmit}>
                            <input type="text" name="a" value={values.a} onChange={handleChange} onBlur={handleBlur} />
                        </form>
                    )
                }}
            </Formik>
        )
    }
}

class MyApp extends React.Component {

    // will hold access to formikProps.submitForm, to trigger form submission outside of the form
    submitMyForm = null;

    handleSubmitMyForm = (e) => {
        if (this.submitMyForm) {
            this.submitMyForm(e);
        }
    };
    bindSubmitForm = (submitForm) => {
        this.submitMyForm = submitForm;
    };
    render() {
        return (
            <div>
                <button onClick={this.handleSubmitMyForm}>Submit from outside</button>
                <MyForm bindSubmitForm={this.bindSubmitForm} />
            </div>
        )
    }
}

export default MyApp;
23
Elise Chant

Pour ceux qui se demandent quelle est la solution via React hooks:

// Attach this to your <Formik>
const formRef = useRef()

const handleSubmit = () => {
  if (formRef.current) {
    formRef.current.handleSubmit()
  }
}
2
Eric Martin