Validation component for material-ui forms

Demo

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.