react-form-validator-core

To help you get started, we've collected the most common ways that react-form-validator-core is being used within popular public projects.

unosquare / uno-react / src / functions / validations.ts View on Github

function validateEndDate(endValue: string, startValue: string): boolean {
    const startDate = parseISO(startValue);
    const endDate = parseISO(endValue);
    return differenceInMinutes(endDate, startDate) > 0;
}

ValidatorForm.addValidationRule('validateEndDate', validateEndDate);

function startDateGreaterThanEndDate(startValue: string, endValue: string): boolean {
    return endValue !== null ? validateEndDate(endValue, startValue) : true;
}

ValidatorForm.addValidationRule('startDateGreaterThanEndDate', startDateGreaterThanEndDate);

ValidatorForm.addValidationRule('isImage', (value: string, extensionFile: string) =>
    imageRegex.test(extensionFile.toLowerCase()),
);

ValidatorForm.addValidationRule('atLeastOneLowerAndUpperCase', (value: string) => lettersRegex.test(value));

ValidatorForm.addValidationRule('atLeastOneNumber', (value: string) => numberRegex.test(value));

ValidatorForm.addValidationRule('atLeastOneSpecialCharacter', (value: string) => nonAlphanumericRegex.test(value));

ValidatorForm.addValidationRule(
    'isPasswordMatch',
    (value: string, comparedValue: string): boolean => value === comparedValue,
);

ValidatorForm.addValidationRule('password', (value: string): boolean => !!value.match(passwordRegex));

View more ways to use react-form-validator-core

Validation component for react forms

Simple form validation component for react forms inspired by formsy-react

Default validation rules:

• matchRegexp
• isEmail
• isEmpty
• required
• trim
• isNumber
• isFloat
• isPositive
• minNumber
• maxNumber
• minFloat
• maxFloat
• isString
• minStringLength
• maxStringLength
• maxFileSize
• allowedExtensions

Some rules can accept extra parameter, example:

Usage

import React from 'react';
import { ValidatorComponent } from 'react-form-validator-core';

class TextValidator extends ValidatorComponent {

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

        return (
            <div>
                <input> { this.input = r; }}
                /&gt;
                {this.errorText()}
            </div>
        );
    }

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

        if (isValid) {
            return null;
        }

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

export default TextValidator;

...
import { ValidatorForm } from 'react-form-validator-core';
...
render() {
    return (
        
            
            <button type="submit">submit</button>
        
    );
}
...

class FileValidator extends ValidatorComponent {
  render() {
    const { errorMessages, validators, requiredError, validatorListener, value, ...rest } = this.props;
    return (
      <div>
        <input type="file">
        {this.errorText()}
      </div>
    );
  }

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

    if (isValid) {
      return null;
    }

    return <div style="{{">{this.getErrorMessage()}</div>;
  }
}
export default FileValidator;

...
import { ValidatorForm } from 'react-form-validator-core';
...
render() {
    return (
        
            
            <button type="submit">submit</button>
        
    );
}
...

You can add your own rules

ValidatorForm.addValidationRule('isPasswordMatch', (value) => {
    if (value !== this.state.user.password) {
        return false;
    }
    return true;
});

Get them

ValidatorForm.getValidationRule('isPasswordMatch');

Remove them

ValidatorForm.removeValidationRule('isPasswordMatch');

And check is validation rule already in list

ValidatorForm.hasValidationRule('isPasswordMatch');

Migration guide

From 0.x to 1.x

Breaking changes was introduced in order to avoid legacy context. You should change render method of your input components to renderValidatorComponent.

Before:

import React from 'react';
import { ValidatorComponent } from 'react-form-validator-core';

class TextValidator extends ValidatorComponent {
    render() {
        // return your validated component
    }
}

export default TextValidator;

After:

import React from 'react';
import { ValidatorComponent } from 'react-form-validator-core';

class TextValidator extends ValidatorComponent {
    renderValidatorComponent() {
        // return your validated component
    }
}

export default TextValidator;

API

ValidatorForm

• Props

• Instance methods (via ref)

• Static methods (via class)

All validated fields (ValidatorComponent)

• Props

• Methods

Implementations

• material-ui

Contributing

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