DoContact WordPress Plugin

Description

DoContact is a WordPress plugin that enables you to collect visitor contact submissions via AJAX. It features real-time form validation, secure data storage in a custom database table, and an admin interface to view all submissions. The plugin provides a clean, user-friendly contact form with validation for email addresses and phone numbers.

Features

• ✅ AJAX Form Submission - Submit contact forms without page reload
• ✅ Real-time Validation - Instant feedback as users type
• ✅ Email Validation - Server-side and client-side email format validation
• ✅ Phone Number Validation - Exactly 10 digits, numbers only
• ✅ Name Validation - Only letters and spaces allowed
• ✅ Secure Storage - Custom database table for storing submissions
• ✅ Admin Dashboard - View all submissions in WordPress admin
• ✅ IP Address Tracking - Automatically captures visitor IP addresses
• ✅ Pagination - Efficient pagination for large numbers of submissions
• ✅ Security - Nonce verification and input sanitization
• ✅ Responsive Design - Mobile-friendly form design
• ✅ Accessibility - ARIA labels and proper form structure

Requirements

• WordPress 5.0 or higher
• PHP 7.2 or higher
• MySQL 5.6 or higher

Installation

1. Download the Plugin

   • Download the plugin files to your computer

2. Upload to WordPress

   • Navigate to wp-content/plugins/ in your WordPress installation
   • Create a folder named Do-Contact
   • Upload all plugin files to this folder

3. Activate the Plugin

   • Go to WordPress Admin → Plugins
   • Find "DoContact" in the plugin list
   • Click "Activate"

4. Database Setup

   • The plugin will automatically create the required database table upon activation
   • Table name: wp_docontact_submissions (prefix may vary based on your WordPress setup)

Usage

Adding the Contact Form

Use the shortcode [docontact_form] anywhere on your WordPress site:

[docontact_form]

Example:

• Add it to a page: Create a new page and insert [docontact_form]
• Add it to a post: Insert [docontact_form] in your post content
• Add it to a widget: Use a text widget and insert the shortcode

Form Fields

The contact form includes the following fields:

• Full Name (Required)

  • Only letters and spaces allowed
  • Real-time validation prevents invalid characters

• Email (Required)

  • Valid email format required
  • Real-time validation feedback

• Phone Number (Required)

  • Exactly 10 digits
  • Numbers only
  • Auto-formatted as user types

• Service Required (Optional)

  • Dropdown with options:
    • General Inquiry
    • Web Development
    • SEO
    • Support
    • Other

• Message (Optional)

  • Free text area for additional comments

Viewing Submissions

1. Navigate to Tools → DoContact Submissions in WordPress admin
2. View all submissions in a paginated table
3. See submission details including:
   • Submission ID
   • Full Name
   • Email (clickable mailto link)
   • Phone Number
   • Service Required
   • Message
   • IP Address
   • Submission Date/Time (UTC)

File Structure

Do-Contact/
├── docontact.php                    # Main plugin file
├── README.md                        # This file
├── assets/
│   ├── css/
│   │   ├── admin.css               # Admin page styles
│   │   └── form.css                # Frontend form styles
│   └── js/
│       ├── admin.js                # Admin page JavaScript
│       └── form.js                 # Frontend form JavaScript with validation
└── includes/
    ├── class-docontact-activator.php    # Handles plugin activation & DB setup
    ├── class-docontact-db.php           # Database operations wrapper
    ├── class-docontact-validator.php   # Server-side validation logic
    ├── class-docontact-ajax.php         # AJAX request handler
    ├── class-docontact-shortcode.php    # Shortcode renderer
    └── class-docontact-admin.php        # Admin page renderer

Database Schema

The plugin creates a custom table wp_docontact_submissions with the following structure:

Indexes:

• Primary key on id
• Index on email for faster lookups

Security Features

• Nonce Verification - All AJAX requests are protected with WordPress nonces
• Input Sanitization - All user inputs are sanitized using WordPress functions
• Output Escaping - All outputs are escaped to prevent XSS attacks
• Capability Checks - Admin pages require manage_options capability
• SQL Injection Prevention - Uses $wpdb->prepare() for all database queries
• Direct Access Protection - All PHP files check for ABSPATH before execution

Validation Rules

Frontend (JavaScript)

• Full Name: Only letters and spaces, real-time filtering
• Email: Standard email format validation
• Phone: Exactly 10 digits, numbers only, maxlength restriction

Backend (PHP)

• Full Name: Regex pattern /^[A-Za-z\s]+$/
• Email: PHP filter_var() with FILTER_VALIDATE_EMAIL
• Phone: Exactly 10 digits, numbers only

Hooks & Filters

The plugin uses standard WordPress hooks:

• register_activation_hook - Creates database table on activation
• wp_enqueue_scripts - Registers frontend assets
• admin_enqueue_scripts - Registers admin assets
• admin_menu - Adds admin menu item
• wp_ajax_docontact_submit - Handles logged-in user AJAX requests
• wp_ajax_nopriv_docontact_submit - Handles guest user AJAX requests

Customization

Styling

The form styles can be customized by overriding CSS classes:

• .docontact-wrap - Main form container
• .doc-button - Submit button
• .doc-field-error - Field error messages
• .doc-success - Success messages
• .doc-error - Error messages

Service Options

To modify service options, edit the $service_options array in:

• includes/class-docontact-shortcode.php
• includes/class-docontact-ajax.php
• includes/class-docontact-admin.php

Troubleshooting

Form Not Appearing

• Ensure the shortcode [docontact_form] is correctly placed
• Check that the plugin is activated
• Verify JavaScript is enabled in the browser

Submissions Not Saving

• Check database table exists: wp_docontact_submissions
• Verify WordPress database user has CREATE/INSERT permissions
• Check browser console for JavaScript errors

Validation Not Working

• Clear browser cache
• Ensure jQuery is loaded (WordPress includes it by default)
• Check browser console for JavaScript errors

Admin Page Not Accessible

• Verify user has manage_options capability (Administrator role)
• Check that the plugin is activated

Changelog

Version 1.0.0

• Initial release
• AJAX form submission
• Real-time validation
• Admin submission viewer
• Custom database table
• IP address tracking
• Pagination support

Support

For issues, questions, or contributions, please contact the plugin author.

License

This plugin is provided as-is for use with WordPress.

Credits

Author: Chamika Shashipriya
Version: 1.0.0
Text Domain: docontact

Note: This plugin follows WordPress coding standards and best practices for security, performance, and maintainability.

Made By Chamika Shashipriya Under DoAcadamy Module 2 Assignment 1 of Full-Stack Web Developer Industrial Training Program