react-form-input-validation
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2.1.0 • Public • Published

React Form Input Validation

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A customized validatorjs library to validate the react forms. It uses the both Controlled Components and React Hooks approach for validation.

Why use react-form-input-validation?

  • JQuery Free.
  • Auto Controlled State.
  • Able to use in both State and Stateless components.
  • Compatible with libraries like Material UI, and etc.
  • Readable and declarative validation rules which is inspired by laravel framework.
  • Error messages with multilingual support.
  • Handy to manage multiple forms in same page.

Installation

To install the stable version:

Using npm as your package manager.

  npm install --save react-form-input-validation

Using yarn as your package manager.

  yarn add react-form-input-validation

Usage

Class component

The given below example is for Class component. View all available apis in documentation.

import React from "react";
import ReactFormInputValidation from "react-form-input-validation";

class ValidationForm extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      fields: {
        name: "",
        email: "",
        phone_number: ""
      },
      errors: {}
    };
    this.form = new ReactFormInputValidation(this);
    this.form.useRules({
        name: "required",
        email: "required|email",
        phone_number: "required|numeric|digits_between:10,12",
    });
    this.form.onformsubmit = (fields) => {
      // Do you ajax calls here.
    }
  }

  render() {
    return (<React.Fragment>
        <form onSubmit={this.form.handleSubmit}>
            <p>
              <label>
                Name
                <input
                  type="text"
                  name="name"
                  onBlur={this.form.handleBlurEvent}
                  onChange={this.form.handleChangeEvent}
                  value={this.state.fields.name}
                />
              </label>
              <label className="error">
                {this.state.errors.name ? this.state.errors.name : ""}
              </label>
            </p>

            <p>
              <label>
                Email
                <input
                  type="email"
                  name="email"
                  onBlur={this.form.handleBlurEvent}
                  onChange={this.form.handleChangeEvent}
                  value={this.state.fields.email}
                />
              </label>
              <label className="error">
                {this.state.errors.email ? this.state.errors.email : ""}
              </label>
            </p>

            <p>
              <label>
                Phone
                <input
                  type="tel"
                  name="phone_number"
                  onBlur={this.form.handleBlurEvent}
                  onChange={this.form.handleChangeEvent}
                  value={this.state.fields.phone_number}
                />
              </label>
              <label className="error">
                {this.state.errors.phone_number ? this.state.errors.phone_number : ""}
              </label>
            </p>
            <p>
              <button type="submit">Submit</button>
            </p>
        </form>
    </React.Fragment>)
  }
}

Functional Component

The given below example is for Functional component with the usage of hooks. View all available apis in documentation.

Example 1

import React from "react";
import { useFormInputValidation } from "react-form-input-validation";

const ValidationForm = () => {
  const [fields, errors, form] = useFormInputValidation({
    customer_name: "",
    email_address: "",
    phone_number: "",
  }, {
    customer_name: "required",
    email_address: "required|email",
    phone_number: "required|numeric|digits_between:10,12"
  });

  const onSubmit = async (event) => {
    const isValid = await form.validate(event);
    if (isValid) {
      // console.log(fields, errors);
      // Perform api call here
    }
  }
  
  return <div style={{maxWidth: "600px", margin: "0 auto"}}>
  <h3>React Form Input Validation - validate</h3>
  <form
    className="myForm"
    noValidate
    autoComplete="off"
    onSubmit={onSubmit}
  >
    <p>
      <label>
        Name
        <input
          type="text"
          name="customer_name"
          onBlur={form.handleBlurEvent}
          onChange={form.handleChangeEvent}
          value={state.fields.customer_name}
      />
      </label>
      <label className="error">
        {errors.customer_name
          ? errors.customer_name
          : ""}
      </label>
    </p>

    <p>
      <label>
        Phone
        <input
          type="tel"
          name="phone_number"
          onBlur={form.handleBlurEvent}
          onChange={form.handleChangeEvent}
          value={fields.phone_number}
        />
      </label>
      <label className="error">
        {errors.phone_number
          ? errors.phone_number
          : ""}
      </label>
    </p>

    <p>
      <label>
        Email
        <input
          type="email"
          name="email_address"
          onBlur={form.handleBlurEvent}
          onChange={form.handleChangeEvent}
          value={fields.email_address}
        />
      </label>
      <label className="error">
        {errors.email_address
          ? errors.email_address
          : ""}
      </label>
    </p>

    <p>
      <button type="submit">Submit</button>
    </p>
  </form>
</div>
}

export default ValidationForm;

Example 2

import React from "react";
import { useFormInputValidation } from "react-form-input-validation";

const ValidationForm2 = () => {
    const [fields, errors, form] = useFormInputValidation({
      email_address: "",
      password: "",
    }, {
      email_address: "required|email",
      password: "required"
    });
  
    useEffect(() => {
      if (form.isValidForm) {
        // console.log(fields, errors, form);
        // Perform api call here
      }
    }, [])
    
    return <div style={{maxWidth: "600px", margin: "0 auto"}}>
    <h3>React Form Input Validation - usage of form.isValidForm</h3>
    <form
      className="myForm"
      noValidate
      autoComplete="off"
      onSubmit={form.handleSubmit}
    >
      <p>
        <label>
          Email
          <input
            type="email"
            name="email_address"
            onBlur={form.handleBlurEvent}
            onChange={form.handleChangeEvent}
            value={fields.email_address}
          />
        </label>
        <label className="error">
          {errors.email_address
            ? errors.email_address
            : ""}
        </label>
      </p>
  
      <p>
        <label>
          Password
          <input
            type="tel"
            name="password"
            onBlur={form.handleBlurEvent}
            onChange={form.handleChangeEvent}
            value={fields.password}
          />
        </label>
        <label className="error">
          {errors.password
            ? errors.password
            : ""}
        </label>
      </p>
  
      <p>
        <button type="submit">Submit</button>
      </p>
    </form>
  </div>
  }
  
  export default ValidationForm2;

Custom attribute name

Refer the below example to override the attribute name,

    <input
        type="text"
        name="name"
        onBlur={this.form.handleBlurEvent}
        onChange={this.form.handleChangeEvent}
        value={this.state.fields.name}
        data-attribute-name="Username"
    />

The output will be like, "The Username field is required.".

Supported form fields

Form Fields and Attributes Supported By Library
text
password
email
url
number
checkbox
radio
search
tel
date
month
week
time
datetime-local
textarea
select
color
Combo Box Fields
file
range
image

The input types button, submit, reset, hidden are exceptional from the above list.

Versions

Latest Version: 2.0.5. For more versions refer VERSIONS.md.

Changelog

Recently Updated? Please read the changelog.

License

This project is licensed under the GPLv3 License - see the LICENSE.md file for details.

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