Validation component for material-ui forms

Simple form validation component for material-ui library inspired by formsy-react

Supported types:

• Text (TextValidator)
• Select (SelectValidator)
• AutoComplete (AutoCompleteValidator)
• Date (DateValidator)
• Time (TimeValidator)

Default validation rules:

• matchRegexp
• isEmail
• isEmpty
• required
• trim
• isNumber
• isFloat
• isPositive
• minNumber
• maxNumber

Some rules can accept extra parameter, example:

<TextValidator
   {...someProps}
   validators={['minNumber:0', 'maxNumber:255', 'matchRegexp:^[0-9]$']}
/>

Example

Usage

You can pass any props of field components, but note that errorText prop will be replaced when validation errors occurred. Your component must provide a theme.

import React from 'react';
import RaisedButton from 'material-ui/RaisedButton';
import { ValidatorForm, TextValidator} from 'react-material-ui-form-validator';

class MyForm extends React.Component {

    constructor(props) {
        super(props);

        this.handleChange = this.handleChange.bind(this);
    }

    handleChange(event) {
        const email = event.target.value;
        this.setState({ email });
    }

    handleSubmit() {
        // your submit logic
    }

    render() {
        const { email } = this.state;
        return (
            <ValidatorForm
                ref="form"
                onSubmit={this.handleSubmit}
                onError={errors => console.log(errors)}
            >
                <TextValidator
                    floatingLabelText="Email"
                    onChange={this.handleChange}
                    name="email"
                    value={email}
                    validators={['required', 'isEmail']}
                    errorMessages={['this field is required', 'email is not valid']}
                />
                <RaisedButton type="submit" />
            </ValidatorForm>
        );
    }
}

You can add your custom rules:

import React from 'react';
import RaisedButton from 'material-ui/RaisedButton';
import { ValidatorForm, TextValidator} from 'react-material-ui-form-validator';

class ResetPasswordForm extends React.Component {

    constructor(props) {
        super(props);
        this.state = {
            user: {},
        };
        this.handleChange = this.handleChange.bind(this);
    }

    componentWillMount() {
        // custom rule will have name 'isPasswordMatch'
        ValidatorForm.addValidationRule('isPasswordMatch', (value) => {
            if (value !== this.state.user.password) {
                return false;
            }
            return true;
        });
    }

    handleChange(event) {
        const { user } = this.state;
        user[event.target.name] = event.target.value;
        this.setState({ user });
    }

    handleSubmit() {
        // your submit logic
    }

    render() {
        const { user } = this.state;

        return (
            <ValidatorForm
                onSubmit={this.handleSubmit}
            >
                <TextValidator
                    floatingLabelText="Password"
                    onChange={this.handleChange}
                    name="password"
                    type="password"
                    validators={['required']}
                    errorMessages={['this field is required']}
                    value={user.password}
                />
                <TextValidator
                    floatingLabelText="Repeat password"
                    onChange={this.handleChange}
                    name="repeatPassword"
                    type="password"
                    validators={['isPasswordMatch', 'required']}
                    errorMessages={['password mismatch', 'this field is required']}
                    value={user.repeatPassword}
                />
                <RaisedButton type="submit" />
            </ValidatorForm>
        );
    }

Currently material-ui doesn't support error messages for switches, but you can easily add your own:

import React from 'react';
import { red300 } from 'material-ui/styles/colors';
import Checkbox from 'material-ui/Checkbox';
import { ValidatorComponent } from 'react-material-ui-form-validator';

class CheckboxValidatorElement extends ValidatorComponent {

    render() {
        const { errorMessages, validators, requiredError, value, ...rest } = this.props;

        return (
            <div>
                <Checkbox
                    {...rest}
                    ref={(r) => { this.input = r; }}
                />
                {this.errorText()}
            </div>
        );
    }

    errorText() {
        const { isValid } = this.state;

        if (isValid) {
            return null;
        }

        const style = {
            right: 0,
            fontSize: '12px',
            color: red300,
            position: 'absolute',
            marginTop: '-25px',
        };

        return (
            <div style={style}>
                {this.getErrorMessage()}
            </div>
        );
    }
}

export default CheckboxValidatorElement;

    componentWillMount() {
        ValidatorForm.addValidationRule('isTruthy', value => value);
    }
...
    <CheckboxValidatorElement
        ...
        validators=['isTruthy']
        errorMessages=['this field is required']
        checked={value}
        value={value} <---- you must provide this prop, it will be used only for validation
    />

Advanced usage

API

ValidatorForm

| Prop | Required | Type | Default value | Description | |-----------------|----------|----------|---------------|------------------------------------------------------------------------------------------------------------------------------| | onSubmit | true | function | | Callback for form that fires when all validations are passed | | instantValidate | false | bool | true | If true, form will be validated after each field change. If false, form will be validated only after clicking submit button. | | onError | false | function | | Callback for form that fires when some of validations are not passed. It will return array of elements which not valid. |

All validated fields (ValidatorComponent)

| Prop | Required | Type | Default value | Description | |-----------------|----------|----------|---------------|----------------------------------------------------------------------------------------| | validators | false | array | | Array of validators. See list of default validators above. | | errorMessages | false | array | | Array of error messages. Order of messages should be the same as validators prop. | | name | true | string | | Name of input | | validatorListener | false | function | | It triggers after each validation. It will return true or false |

Contributing

This component covers all my needs, but feel free to contribute.