Skip to content

FORM_BUILDER_README.md

Latest commit

 

History

History
271 lines (215 loc) · 6.88 KB

FORM_BUILDER_README.md

File metadata and controls

271 lines (215 loc) · 6.88 KB

Advanced Form Builder - Implementation Guide

Overview

This document describes the implementation of the Advanced Form Builder feature for the Verinode project. This feature allows users to create dynamic, custom proof templates with various field types, validation rules, and conditional logic.

Features Implemented

✅ Core Features

  • Drag-and-drop form builder interface - Intuitive visual form building
  • Multiple field types - Text, number, email, date, file, select, radio, checkbox, rating, range, signature, and more
  • Custom validation rules per field - Required, min/max length, pattern matching, custom functions
  • Conditional logic and field dependencies - Show/hide fields based on user input
  • Form template saving and loading - Persistent storage of form configurations
  • Real-time form preview - Live preview with device simulation (mobile, tablet, desktop)
  • Mobile-responsive form rendering - Forms work on all device sizes
  • Accessibility compliance - Proper ARIA labels and semantic HTML
  • Form analytics and usage tracking - Track form views, submissions, and completion rates
  • Export/import form configurations - JSON-based template sharing

Architecture

Frontend Components

Core Components

  1. FormBuilder.tsx - Main form builder interface with drag-and-drop
  2. FieldLibrary.tsx - Sidebar with available field types
  3. ValidationRules.tsx - Field validation configuration
  4. ConditionalLogic.tsx - Field dependency rules
  5. FormPreview.tsx - Real-time form preview with device simulation

Supporting Components

  • FormBuilderPage.tsx - Page wrapper for the form builder
  • FormTemplatesPage.tsx - Template management interface

Services

  • formBuilderService.ts - API service for form operations
  • formBuilder.ts - TypeScript types and interfaces

Data Models

FormTemplate

interface FormTemplate {
  id: string;
  name: string;
  description?: string;
  fields: FormField[];
  settings: FormSettings;
  metadata: TemplateMetadata;
}

FormField

interface FormField {
  id: string;
  type: FieldType;
  label: string;
  name: string;
  placeholder?: string;
  description?: string;
  defaultValue?: any;
  required: boolean;
  disabled: boolean;
  validationRules: ValidationRuleConfig[];
  conditionalLogic?: ConditionalLogic[];
  options?: Array<{ label: string; value: string }>;
  settings: Record<string, any>;
  order: number;
}

Field Types Supported

Basic Fields

  • Text Input
  • Number
  • Email
  • Password
  • URL
  • Phone
  • Text Area

Choice Fields

  • Dropdown (Select)
  • Multi Select
  • Radio Buttons
  • Checkboxes

Date & Time Fields

  • Date Picker
  • Date & Time Picker
  • Time Picker

File Fields

  • File Upload
  • Image Upload

Special Fields

  • Star Rating
  • Range Slider
  • Digital Signature

Validation Rules

Built-in Rules

  • Required field validation
  • Minimum/Maximum length
  • Minimum/Maximum value
  • Pattern matching (regex)
  • Email format validation
  • URL format validation

Custom Validation

  • JavaScript-based custom validation functions
  • Access to form data for cross-field validation

Conditional Logic

Operators

  • Equals / Not Equals
  • Contains / Not Contains
  • Starts With / Ends With
  • Greater Than / Less Than
  • Is Empty / Is Not Empty
  • Is Checked / Is Not Checked

Actions

  • Show / Hide fields
  • Enable / Disable fields
  • Make fields required

API Endpoints

Form Templates

  • POST /api/form-templates - Create template
  • GET /api/form-templates/:id - Get template
  • PUT /api/form-templates/:id - Update template
  • DELETE /api/form-templates/:id - Delete template
  • GET /api/form-templates - List templates with filters

Form Submissions

  • POST /api/form-templates/:id/submit - Submit form
  • GET /api/form-templates/:id/submissions - Get submissions
  • PATCH /api/form-submissions/:id/status - Update submission status

Analytics

  • GET /api/form-templates/:id/analytics - Get form analytics
  • GET /api/form-templates/:id/usage - Get usage statistics

Export/Import

  • GET /api/form-templates/:id/export - Export template
  • POST /api/form-templates/import - Import template

Usage

Creating a Form

  1. Navigate to /form-builder
  2. Drag fields from the library to the form canvas
  3. Configure field properties (label, validation, etc.)
  4. Set up conditional logic if needed
  5. Preview the form in real-time
  6. Save the template

Managing Templates

  1. Navigate to /form-templates
  2. View all saved templates
  3. Edit, duplicate, or delete templates
  4. Export/import templates for sharing

Accessibility Features

  • Semantic HTML structure
  • ARIA labels and descriptions
  • Keyboard navigation support
  • Screen reader compatibility
  • High contrast mode support
  • Focus management

Mobile Responsiveness

  • Responsive grid layouts
  • Touch-friendly interfaces
  • Optimized field rendering for mobile
  • Device-specific preview modes
  • Progressive enhancement

Performance Optimizations

  • Lazy loading of form components
  • Efficient state management
  • Optimized re-rendering
  • Code splitting for large forms
  • Caching of form configurations

Security Considerations

  • Input sanitization
  • XSS prevention
  • CSRF protection
  • File upload validation
  • Rate limiting for submissions

Testing

Unit Tests

  • Component rendering tests
  • Validation logic tests
  • Conditional logic tests
  • Service layer tests

Integration Tests

  • Form submission flow
  • Template CRUD operations
  • Export/import functionality

E2E Tests

  • Complete form building workflow
  • Cross-browser compatibility
  • Mobile device testing

Browser Support

  • Chrome 90+
  • Firefox 88+
  • Safari 14+
  • Edge 90+

Future Enhancements

Planned Features

  • Form themes and styling
  • Advanced analytics dashboard
  • Form collaboration features
  • Multi-step forms
  • Payment integration
  • Third-party integrations (Zapier, webhooks)
  • Advanced conditional logic (AND/OR operators)
  • Form versioning and rollback
  • A/B testing for forms

Performance Improvements

  • Virtual scrolling for large forms
  • Offline form support
  • Progressive Web App features
  • Server-side rendering

Troubleshooting

Common Issues

  1. Drag and drop not working - Check react-beautiful-dnd installation
  2. Form not saving - Verify API connectivity and authentication
  3. Validation not triggering - Ensure validation rules are properly configured
  4. Conditional logic not working - Check field names and operator usage

Debug Mode

Enable debug mode by setting localStorage.setItem('formBuilderDebug', 'true') to see detailed console logs.

Contributing

When contributing to the form builder:

  1. Follow the existing code style
  2. Add TypeScript types for new features
  3. Include unit tests for new functionality
  4. Update documentation
  5. Test accessibility compliance

License

This feature is part of the Verinode project and follows the same MIT license.