Revert "Add version control system functionality with branch management, history tracking, and merge operations"

This reverts commit f3d28817a5.
This commit is contained in:
pacnpal
2025-02-08 17:37:30 -05:00
parent 03f9df4bab
commit 71b73522ae
125 changed files with 617 additions and 15830 deletions

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@@ -1,74 +1,146 @@
# Comment System Architecture Fix
# Active Context
## Required Code Modifications
## Current Project State
### 1. Central CommentThread Model (comments/models.py)
```python
from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation
from django.contrib.contenttypes.models import ContentType
from django.db import models
### Active Components
- Django backend with core apps
- accounts
- analytics
- companies
- core
- designers
- email_service
- history_tracking
- location
- media
- moderation
- parks
- reviews
- rides
class CommentThread(models.Model):
"""Centralized comment threading system"""
content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey()
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
### Implementation Status
1. Backend Framework
- ✅ Django setup
- ✅ Database models
- ✅ Authentication system
- ✅ Admin interface
class Meta:
indexes = [
models.Index(fields=["content_type", "object_id"]),
]
app_label = 'comments'
```
2. Frontend Integration
- ✅ HTMX integration
- ✅ AlpineJS setup
- ✅ Tailwind CSS configuration
### 2. Model Reference Updates (Example for companies/models.py)
```python
# In all affected models (companies, rides, parks, reviews):
from comments.models import CommentThread
3. Core Features
- ✅ User authentication
- ✅ Park management
- ✅ Ride tracking
- ✅ Review system
- ✅ Location services
- ✅ Media handling
class Company(models.Model):
# ... existing fields ...
comments = GenericRelation(CommentThread) # Updated reference
```
## Current Focus Areas
### 3. Historical Records Adjustment
```python
# Historical model definitions:
class HistoricalCompany(HistoricalRecords):
comments = models.ForeignKey(
'comments.CommentThread', # Unified reference
on_delete=models.SET_NULL,
null=True,
blank=True
)
```
### Active Development
1. Content Management
- Moderation workflow refinement
- Content quality metrics
- User contribution tracking
## Migration Execution Plan
2. User Experience
- Frontend performance optimization
- UI/UX improvements
- Responsive design enhancements
1. Generate initial comment thread migration:
```bash
./manage.py makemigrations comments --name create_commentthread
```
3. System Reliability
- Error handling improvements
- Testing coverage
- Performance monitoring
2. Create dependent migrations for each modified app:
```bash
for app in companies rides parks reviews; do
./manage.py makemigrations $app --name update_comment_references
done
```
## Immediate Next Steps
3. Migration dependency chain:
```python
# In each app's migration file:
dependencies = [
('comments', '0001_create_commentthread'),
]
```
### Technical Tasks
1. Testing
- [ ] Increase test coverage
- [ ] Implement integration tests
- [ ] Add performance tests
## Validation Checklist
- [ ] Run full test suite: `uv test ./manage.py test`
- [ ] Execute system check: `uv run ./manage.py check --deploy`
- [ ] Verify database schema changes in migration files
- [ ] Confirm admin interface comment relationships
2. Documentation
- [ ] Complete API documentation
- [ ] Update setup guides
- [ ] Document common workflows
3. Performance
- [ ] Optimize database queries
- [ ] Implement caching strategy
- [ ] Improve asset loading
### Feature Development
1. Content Quality
- [ ] Enhanced moderation tools
- [ ] Automated content checks
- [ ] Media optimization
2. User Features
- [ ] Profile enhancements
- [ ] Contribution tracking
- [ ] Notification system
## Known Issues
### Backend
1. Performance
- Query optimization needed for large datasets
- Caching implementation incomplete
2. Technical Debt
- Some views need refactoring
- Test coverage gaps
- Documentation updates needed
### Frontend
1. UI/UX
- Mobile responsiveness improvements
- Loading state refinements
- Error feedback enhancements
2. Technical
- JavaScript optimization needed
- Asset loading optimization
- Form validation improvements
## Recent Changes
### Last Update: 2025-02-06
1. Memory Bank Initialization
- Created core documentation structure
- Migrated existing documentation
- Established documentation patterns
2. System Documentation
- Product context defined
- Technical architecture documented
- System patterns established
## Upcoming Milestones
### Short-term Goals
1. Q1 2025
- Complete moderation system
- Launch enhanced user profiles
- Implement analytics tracking
2. Q2 2025
- Media system improvements
- Performance optimization
- Mobile experience enhancement
### Long-term Vision
1. Platform Growth
- Expanded park coverage
- Enhanced community features
- Advanced analytics
2. Technical Evolution
- Architecture scalability
- Feature extensibility
- Performance optimization

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@@ -1,33 +0,0 @@
# Historical Model Comment Fixes
## Problem
System check errors occurred because historical models referenced CommentThread in their own app context (e.g. `companies.commentthread`) instead of the actual `comments.CommentThread` model.
## Solution
Added `excluded_fields = ['comments']` to Meta classes of all affected models to exclude comment relationships from historical tracking. Note: Initially tried `history_exclude` but this was incorrect - django-simple-history uses `excluded_fields`.
## Affected Models (Fixed)
- Company (companies/models.py)
- Manufacturer (companies/models.py)
- Designer (companies/models.py)
- Park (parks/models.py)
- ParkArea (parks/models.py)
- Ride (rides/models.py)
- RideModel (rides/models.py)
- Review (reviews/models.py)
## Implementation Details
Each model's Meta class was updated to exclude the comments field from historical tracking:
```python
class Meta:
# ... other Meta options ...
excluded_fields = ['comments'] # Exclude from historical tracking
```
This prevents django-simple-history from attempting to track the GenericRelation field in historical models, which was causing the system check errors.
## Verification
Run system checks to verify fix:
```bash
python manage.py check

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@@ -1,123 +0,0 @@
# Version Control System Evaluation
## Overview
Comprehensive evaluation of the project's version control implementation conducted on 2025-02-07.
## Core Architecture Assessment
### Strengths
- Well-structured modular design with clear separation of concerns
- Robust history tracking using Django's HistoricalRecords
- Comprehensive branch and changeset management
- Built-in comment threading and review system
- Strong monitoring and metrics collection
### Data Model Design
#### Core Models
- `HistoricalModel` (Abstract base)
- `VersionBranch` (Branch management)
- `VersionTag` (Version tagging)
- `ChangeSet` (Atomic changes)
- `CommentThread` & `Comment` (Review system)
#### Relationships
✅ Properly structured relationships between models
✅ Effective use of GenericForeignKey for flexibility
✅ Clear handling of model history
## Implementation Analysis
### Version Control Features
1. Branching System
- ✅ Branch hierarchy with parent-child relationships
- ✅ Branch metadata and activity tracking
- ✅ Lock management for concurrent access
2. Change Tracking
- ✅ Atomic changesets with approval workflow
- ✅ Detailed change metadata
- ✅ Dependency tracking
- ✅ Revert capabilities
3. Review System
- ✅ Threaded comments with mentions
- ✅ Line-specific annotations
- ✅ Resolution tracking
### Monitoring & Performance
- Comprehensive metrics collection
- Performance tracking for operations
- Database query monitoring
- Cache performance tracking
- Structured logging with Sentry integration
## Areas for Improvement
### 1. Performance Optimizations
- Consider implementing batch processing for large changesets
- Add caching for frequently accessed version history
- Optimize query patterns for large history sets
### 2. Feature Enhancements
- Add support for cherry-picking changes between branches
- Implement automated conflict resolution for simple cases
- Add hooks system for custom version control events
### 3. Scalability Considerations
- Implement archive strategy for old history records
- Add partitioning support for large history tables
- Consider async processing for heavy operations
### 4. Maintenance Recommendations
- Implement automated cleanup for orphaned records
- Add integrity checks for version history
- Enhance monitoring with custom alerts
## Security Assessment
- ✅ Proper access control in place
- ✅ Branch locking mechanism
- ✅ Audit trail for all operations
- 🔄 Consider adding encryption for sensitive changes
## Integration Points
- Well-integrated with Django's ORM
- Clean API endpoints for version control operations
- Frontend integration through structured responses
- Monitoring integration with external services
## Recommendations
### Short Term
1. Implement batch processing for large changesets
2. Add caching layer for version history
3. Create automated cleanup procedures
### Medium Term
1. Develop cherry-picking functionality
2. Implement automated conflict resolution
3. Add versioning hooks system
### Long Term
1. Implement archiving strategy
2. Add partitioning support
3. Enhance async processing capabilities
## Maintainability
### Documentation
- ✅ Well-documented API
- ✅ Comprehensive user guide
- ✅ Clear technical documentation
- 🔄 Consider adding more code examples
### Testing
- ✅ Unit tests present
- ✅ Integration testing
- 🔄 Add more performance tests
- 🔄 Enhance stress testing
## Final Assessment
The version control system is well-implemented with robust features and good maintainability. While there are areas for improvement, the core functionality is solid and provides a strong foundation for future enhancements.
Overall Rating: ⭐⭐⭐⭐☆ (4/5)

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@@ -57,16 +57,6 @@
- Added filter state management
- Enhanced URL handling
5. `templates/moderation/partials/location_map.html` and `location_widget.html`
- Added Leaflet maps integration
- Enhanced location selection
- Improved geocoding
6. `templates/moderation/partials/coaster_fields.html`
- Added detailed coaster stats form
- Enhanced validation
- Improved field organization
## Testing Notes
### Tested Scenarios
@@ -76,9 +66,6 @@
- Loading states and error handling
- Filter functionality
- Form submissions and validation
- Location selection and mapping
- Dark mode transitions
- Toast notifications
### Browser Support
- Chrome 90+
@@ -86,17 +73,6 @@
- Safari 14+
- Edge 90+
## Dependencies
- HTMX
- AlpineJS
- TailwindCSS
- Leaflet (for maps)
## Known Issues
- Filter reset might not clear all states
- Mobile scroll performance with many items
- Loading skeleton flicker on fast connections
## Next Steps
### 1. Performance Optimization
@@ -125,4 +101,15 @@
- Update user guide with new features
- Add keyboard shortcut documentation
- Update accessibility guidelines
- Add performance benchmarks
- Add performance benchmarks
## Known Issues
- Filter reset might not clear all states
- Mobile scroll performance with many items
- Loading skeleton flicker on fast connections
## Dependencies
- HTMX
- AlpineJS
- TailwindCSS
- Leaflet (for maps)

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# Version Control Feature
## Strategic Overview
### Purpose
The version control system provides comprehensive content versioning, branching, and merging capabilities across ThrillWiki's models, enabling parallel content development and safe experimentation.
### Key Decisions
#### 1. Infrastructure Integration
- **Decision**: Leverage existing Django database and Redis infrastructure
- **Rationale**:
- Reduces operational complexity
- Maintains consistent data storage patterns
- Utilizes existing backup and monitoring systems
- **Impact**: Simplified deployment and maintenance
#### 2. Architecture Pattern
- **Decision**: Implement as a Django app (history_tracking)
- **Rationale**:
- Follows Django's modular architecture
- Enables easy integration with other apps
- Maintains consistent development patterns
- **Impact**: Clean separation of concerns and reusability
#### 3. Performance Strategy
- **Decision**: Built-in batch processing and caching
- **Rationale**:
- Handles large-scale content changes efficiently
- Optimizes frequently accessed version history
- Reduces database load
- **Impact**: Scales well with growing content and user base
### Technical Integration
#### Database Layer
- Uses existing PostgreSQL database
- Creates dedicated version control tables
- Integrates with Django's ORM
- Maintains data consistency through transactions
#### Caching Layer
- Uses existing Redis infrastructure
- Dedicated cache prefixes (vc_*)
- Configurable cache durations
- Automatic cache invalidation
#### Application Layer
- Modular Django app design
- HTMX integration for UI updates
- AlpineJS for client-side interactions
- Tailwind CSS for styling
## Implementation Details
### Core Components
1. Models
- HistoricalModel (base class)
- VersionBranch (branch management)
- ChangeSet (atomic changes)
- CommentThread (review system)
2. Features
- Branch management
- Change tracking
- Merge operations
- Review system
- Performance monitoring
3. Integration Points
- Model versioning
- Template components
- API endpoints
- Admin interface
### Usage Patterns
#### Model Integration
```python
class YourModel(HistoricalModel):
# Automatic version control capabilities
pass
```
#### Branch Management
```python
with branch_context(branch):
# Changes tracked in specific branch
model.save()
```
#### Batch Operations
```python
with BatchOperation() as batch:
# Efficient handling of multiple changes
batch.process_changes(changes)
```
## Development Guidelines
### Best Practices
1. Use batch operations for multiple changes
2. Implement proper branch management
3. Handle merge conflicts explicitly
4. Monitor performance metrics
5. Cache frequently accessed data
### Anti-Patterns to Avoid
1. Direct model changes outside branch context
2. Inefficient querying of version history
3. Ignoring batch operations for bulk changes
4. Manual cache management
## Monitoring and Maintenance
### Performance Monitoring
- Operation timing metrics
- Cache hit rates
- Database query patterns
- Memory usage
- API response times
### Health Checks
- Branch integrity
- Cache consistency
- Database indexes
- Query performance
- System resources
## Future Considerations
### Planned Enhancements
1. Advanced conflict resolution
2. Enhanced performance monitoring
3. Additional caching strategies
4. Improved UI components
### Scalability Path
1. Partition strategies for large histories
2. Advanced caching patterns
3. Async operation handling
4. Archive management
## Documentation Map
### Technical Documentation
- Implementation Guide: `history_tracking/README.md`
- API Documentation: `docs/version_control_api.md`
- User Guide: `docs/version_control_user_guide.md`
### Architecture Documentation
- Technical Context: `memory-bank/techContext.md`
- System Patterns: `memory-bank/systemPatterns.md`
- Evaluation Report: `memory-bank/evaluations/version_control_evaluation.md`
## Support and Maintenance
### Common Issues
1. Cache invalidation
2. Merge conflicts
3. Performance optimization
4. Data consistency
### Resolution Steps
1. Monitor system metrics
2. Review error logs
3. Check cache status
4. Verify database integrity
## Integration Status
✅ Database Integration
✅ Redis Configuration
✅ Model Integration
✅ UI Components
✅ API Endpoints
✅ Documentation
✅ Monitoring Setup

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# Change Approval Workflow Implementation Plan
## Core Requirements
1. Configurable approval stages
2. Role-based reviewer assignments
3. Parallel vs sequential approvals
4. Audit trail of decisions
5. Integration with existing locks/comments
## Technical Integration
- **State Machine**
Extend StateMachine interface:
```typescript
interface ApprovalStateMachine extends StateMachine {
currentStage: ApprovalStage;
requiredApprovers: UserRef[];
overridePolicy: 'majority' | 'unanimous';
}
```
- **Model Extensions**
Enhance ChangeSet (line 7):
```python
class ChangeSet(models.Model):
approval_state = models.JSONField(default=list) # [{stage: 1, approvers: [...]}]
approval_history = models.JSONField(default=list)
```
- **API Endpoints**
Add to VersionControlViewSet (line 128):
```python
@action(detail=True, methods=['post'])
def submit_for_approval(self, request, pk=None):
"""Transition change set to approval state"""
```
## Security Considerations
- Approval chain validation
- Non-repudiation requirements
- Conflict resolution protocols
- Approval delegation safeguards
## Phase Plan
1. **Week 1**: State machine implementation
2. **Week 2**: Approval UI components
3. **Week 3**: Integration testing
4. **Week 4**: Deployment safeguards

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# Branch Locking System Implementation Plan
## Core Requirements
1. Role-based locking permissions
2. Lock state indicators in UI
3. Lock override protocols
4. Audit logging for lock events
5. Maximum lock duration: 48hrs
## Technical Integration
- **Model Extensions**
Enhance `VersionBranch` (line 14):
```python
class VersionBranch(models.Model):
lock_status = models.JSONField(default=dict) # {user: ID, expires: datetime}
lock_history = models.JSONField(default=list)
```
- **Manager Methods**
Add to `BranchManager` (line 141):
```python
def acquire_lock(self, branch, user, duration=48):
"""Implements lock with timeout"""
def release_lock(self, branch, force=False):
"""Handles lock release with permission checks"""
```
- **UI Components**
Update `VersionControlUI` interface (line 58):
```typescript
lockState: {
isLocked: boolean;
lockedBy: UserRef;
expiresAt: Date;
canOverride: boolean;
};
```
## Security Considerations
- Permission escalation prevention
- Lock expiration enforcement
- Audit log integrity checks
- Session validation for lock holders
## Phase Plan
1. **Week 1**: Locking backend implementation
2. **Week 2**: Permission system integration
3. **Week 3**: UI indicators & controls
4. **Week 4**: Audit system & testing

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# Change Commenting System Implementation Plan
## Core Requirements
1. Threaded comment conversations
2. @mention functionality
3. File/line anchoring
4. Notification system
5. Comment resolution tracking
## Technical Integration
- **Model Relationships**
Extend `HistoricalRecord` (line 31):
```python
class HistoricalRecord(models.Model):
comments = GenericRelation('CommentThread') # Enables change comments
```
- **Collaboration System**
Enhance interface (line 85):
```typescript
interface CollaborationSystem {
createCommentThread(
changeId: string,
anchor: LineRange,
initialComment: string
): Promise<CommentThread>;
}
```
- **UI Components**
New `InlineCommentPanel` component:
```typescript
interface CommentProps {
thread: CommentThread;
canResolve: boolean;
onReply: (content: string) => void;
onResolve: () => void;
}
```
## Notification Matrix
| Event Type | Notification Channel | Escalation Path |
|------------|----------------------|-----------------|
| New comment | In-app, Email | After 24hrs → Slack DM |
| @mention | Mobile push, Email | After 12hrs → SMS |
| Resolution | In-app | None |
## Phase Plan
1. **Week 1**: Comment storage infrastructure
2. **Week 2**: Anchoring system & UI
3. **Week 3**: Notification pipeline
4. **Week 4**: Moderation tools & audit

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# Version Control System Enhancement Plan
## Current Implementation
The project currently uses django-simple-history with custom extensions:
- `HistoricalModel` base class for history tracking
- `HistoricalChangeMixin` for change tracking and diff computation
- `HistoricalSlug` for slug history management
## Enhanced Version Control Standards
### 1. Core VCS Features
#### Branching System
```python
class VersionBranch:
name = models.CharField(max_length=255)
parent = models.ForeignKey('self', null=True)
created_at = models.DateTimeField(auto_now_add=True)
metadata = models.JSONField()
```
- Support for feature branches
- Parallel version development
- Branch merging capabilities
- Conflict resolution system
#### Tagging System
```python
class VersionTag:
name = models.CharField(max_length=255)
version = models.ForeignKey(HistoricalRecord)
metadata = models.JSONField()
```
- Named versions (releases, milestones)
- Semantic versioning support
- Tag annotations and metadata
#### Change Sets
```python
class ChangeSet:
branch = models.ForeignKey(VersionBranch)
changes = models.JSONField() # Structured changes
metadata = models.JSONField()
dependencies = models.JSONField()
```
- Atomic change grouping
- Dependency tracking
- Rollback capabilities
### 2. Full Stack Integration
#### Frontend Integration
##### Version Control UI
```typescript
interface VersionControlUI {
// Core Components
VersionHistory: Component;
BranchView: Component;
DiffViewer: Component;
MergeResolver: Component;
// State Management
versionStore: {
currentVersion: Version;
branches: Branch[];
history: HistoryEntry[];
pendingChanges: Change[];
};
// Actions
actions: {
createBranch(): Promise<void>;
mergeBranch(): Promise<void>;
revertChanges(): Promise<void>;
resolveConflicts(): Promise<void>;
};
}
```
##### Real-time Collaboration
```typescript
interface CollaborationSystem {
// WebSocket integration
socket: WebSocket;
// Change tracking
pendingChanges: Map<string, Change>;
// Conflict resolution
conflictResolver: ConflictResolver;
}
```
##### HTMX Integration
```html
<!-- Version Control Components -->
<div class="version-control-panel"
hx-get="/api/vcs/status"
hx-trigger="load, every 30s">
<!-- Branch Selector -->
<div class="branch-selector"
hx-get="/api/vcs/branches"
hx-target="#branch-list">
</div>
<!-- Change History -->
<div class="history-view"
hx-get="/api/vcs/history"
hx-trigger="load, branch-change from:body">
</div>
<!-- Merge Interface -->
<div class="merge-panel"
hx-post="/api/vcs/merge"
hx-trigger="merge-requested">
</div>
</div>
```
#### Backend Integration
##### API Layer
```python
class VersionControlViewSet(viewsets.ModelViewSet):
@action(detail=True, methods=['post'])
def create_branch(self, request):
"""Create new version branch"""
@action(detail=True, methods=['post'])
def merge_branch(self, request):
"""Merge branches with conflict resolution"""
@action(detail=True, methods=['post'])
def tag_version(self, request):
"""Create version tag"""
@action(detail=True, methods=['get'])
def changelog(self, request):
"""Get structured change history"""
```
##### Change Tracking System
```python
class ChangeTracker:
"""Track changes across the system"""
def track_change(self, instance, change_type, metadata=None):
"""Record a change in the system"""
def batch_track(self, changes):
"""Track multiple changes atomically"""
def compute_diff(self, version1, version2):
"""Compute detailed difference between versions"""
```
### 3. Data Integrity & Validation
#### Validation System
```python
class VersionValidator:
"""Validate version control operations"""
def validate_branch_creation(self, branch_data):
"""Validate branch creation request"""
def validate_merge(self, source_branch, target_branch):
"""Validate branch merge possibility"""
def validate_revert(self, version, target_state):
"""Validate revert operation"""
```
#### Consistency Checks
```python
class ConsistencyChecker:
"""Ensure data consistency"""
def check_reference_integrity(self):
"""Verify all version references are valid"""
def verify_branch_hierarchy(self):
"""Verify branch relationships"""
def validate_change_sets(self):
"""Verify change set consistency"""
```
### 4. Advanced Features
#### Merge Strategies
```python
class MergeStrategy:
"""Define how merges are handled"""
def auto_merge(self, source, target):
"""Attempt automatic merge"""
def resolve_conflicts(self, conflicts):
"""Handle merge conflicts"""
def apply_resolution(self, resolution):
"""Apply conflict resolution"""
```
#### Dependency Management
```python
class DependencyTracker:
"""Track version dependencies"""
def track_dependencies(self, change_set):
"""Record dependencies for changes"""
def verify_dependencies(self, version):
"""Verify all dependencies are met"""
def resolve_dependencies(self, missing_deps):
"""Resolve missing dependencies"""
```
## Implementation Phases
### Phase 1: Core VCS Enhancement (Weeks 1-4)
1. Implement branching system
2. Add tagging support
3. Develop change set tracking
4. Create basic frontend interface
### Phase 2: Full Stack Integration (Weeks 5-8)
1. Build comprehensive frontend UI
2. Implement real-time collaboration
3. Develop API endpoints
4. Add WebSocket support
### Phase 3: Advanced Features (Weeks 9-12)
1. Implement merge strategies
2. Add dependency tracking
3. Enhance conflict resolution
4. Build monitoring system
### Phase 4: Testing & Optimization (Weeks 13-16)
1. Comprehensive testing
2. Performance optimization
3. Security hardening
4. Documentation completion
## Success Metrics
### Technical Metrics
- Branch operation speed (<500ms)
- Merge success rate (>95%)
- Conflict resolution time (<5min avg)
- Version retrieval speed (<200ms)
### User Experience Metrics
- UI response time (<300ms)
- Successful merges (>90%)
- User satisfaction score (>4.5/5)
- Feature adoption rate (>80%)
### System Health Metrics
- System uptime (>99.9%)
- Data integrity (100%)
- Backup success rate (100%)
- Recovery time (<5min)
## Monitoring & Maintenance
### System Monitoring
- Real-time performance tracking
- Error rate monitoring
- Resource usage tracking
- User activity monitoring
### Maintenance Tasks
- Regular consistency checks
- Automated testing
- Performance optimization
- Security updates
## Security Considerations
### Access Control
- Role-based permissions
- Audit logging
- Activity monitoring
- Security scanning
### Data Protection
- Encryption at rest
- Secure transmission
- Regular backups
- Data retention policies

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@@ -1,22 +0,0 @@
## Critical Implementation Revisions
### Phase 1.1: Core Model Updates (2 Days)
1. Add lock fields to VersionBranch
2. Implement StateMachine base class
3. Extend HistoricalChangeMixin with structured diffs
### Phase 2.1: Manager Classes (3 Days)
```python
class LockManager(models.Manager):
def get_locked_branches(self):
return self.filter(lock_status__isnull=False)
class StateMachine:
def __init__(self, workflow):
self.states = workflow['states']
self.transitions = workflow['transitions']
```
### Phase 3.1: Security Backports (1 Day)
- Add model clean() validation
- Implement permission check decorators

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# Version Control System Implementation Status
## Overview
The version control system has been successfully implemented according to the implementation plan and technical guide. The system provides a robust version control solution integrated with django-simple-history and enhanced with branching, merging, and real-time collaboration capabilities.
## Implemented Components
### 1. Core Models
```python
# Core version control models in history_tracking/models.py
- VersionBranch: Manages parallel development branches
- VersionTag: Handles version tagging and releases
- ChangeSet: Tracks atomic groups of changes
- Integration with HistoricalModel and HistoricalChangeMixin
```
### 2. Business Logic Layer
```python
# Managers and utilities in history_tracking/managers.py and utils.py
- BranchManager: Branch operations and management
- ChangeTracker: Change tracking and history
- MergeStrategy: Merge operations and conflict handling
- Utilities for conflict resolution and diff computation
```
### 3. Frontend Integration
```html
# HTMX-based components in history_tracking/templates/
- Version Control Panel (version_control_panel.html)
- Branch Management (branch_list.html, branch_create.html)
- Change History Viewer (history_view.html)
- Merge Interface (merge_panel.html, merge_conflicts.html)
```
### 4. API Layer
```python
# Views and endpoints in history_tracking/views.py
- VersionControlPanel: Main VCS interface
- BranchListView: Branch management
- HistoryView: Change history display
- MergeView: Merge operations
- BranchCreateView: Branch creation
- TagCreateView: Version tagging
```
### 5. Signal Handlers
```python
# Signal handlers in history_tracking/signals.py
- Automatic change tracking
- Changeset management
- Branch context management
```
## Database Schema Changes
- Created models for branches, tags, and changesets
- Added proper indexes for performance
- Implemented GenericForeignKey relationships for flexibility
- Migrations created and applied successfully
## URL Configuration
```python
# Added to thrillwiki/urls.py
path("vcs/", include("history_tracking.urls", namespace="history"))
```
## Integration Points
1. django-simple-history integration
2. HTMX for real-time updates
3. Generic relations for flexibility
4. Signal handlers for automatic tracking
## Features Implemented
- [x] Branch creation and management
- [x] Version tagging system
- [x] Change tracking and history
- [x] Merge operations with conflict resolution
- [x] Real-time UI updates via HTMX
- [x] Generic content type support
- [x] Atomic change grouping
- [x] Branch relationship management
## Next Steps
1. Add comprehensive test suite
2. Implement performance monitoring
3. Add user documentation
4. Consider adding advanced features like:
- Branch locking
- Advanced merge strategies
- Custom diff viewers
## Technical Documentation
- Implementation plan: [implementation-plan.md](implementation-plan.md)
- Technical guide: [technical-guide.md](technical-guide.md)
- API documentation: To be created
- User guide: To be created
## Performance Considerations
- Indexed key fields for efficient querying
- Optimized database schema
- Efficient change tracking
- Real-time updates without full page reloads
## Security Measures
- Login required for all VCS operations
- Proper validation of all inputs
- CSRF protection
- Access control on branch operations
## Monitoring
Future monitoring needs:
- Branch operation metrics
- Merge success rates
- Conflict frequency
- System performance metrics

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@@ -1,43 +0,0 @@
# Version Control System Implementation Checklist
## Core Implementation ✓
- [x] Models
- [x] VersionBranch
- [x] VersionTag
- [x] ChangeSet
- [x] Generic relationships for flexibility
- [x] Managers
- [x] BranchManager
- [x] ChangeTracker
- [x] MergeStrategy
- [x] UI Components
- [x] Version Control Panel
- [x] Branch List
- [x] History View
- [x] Merge Panel
- [x] Branch Creation Form
## Future Enhancements
- [ ] Add visual diff viewer - [See Visual Diff Viewer Plan](visual-diff-viewer.md)
- [ ] Implement branch locking - [See Branch Locking System](branch-locking.md)
- [ ] Add commenting on changes - [See Change Comments Framework](change-comments.md)
- [ ] Create change approval workflow - [See Approval Workflow Docs](approval-workflow.md)
- [ ] Add version comparison tool - [See Comparison Tool Spec](version-comparison.md)
## Documentation Updates ✓
- [x] README creation
- [x] Implementation guide
- [x] Template integration guide
- [x] API documentation
- [x] User guide
## Testing Requirements ✓
- [x] Unit Tests
- [x] Integration Tests
- [x] UI Tests
## Monitoring Setup ✓
- [x] Performance Metrics
- [x] Error Tracking

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@@ -1,14 +0,0 @@
# Version Control Feature Integration Matrix
| Feature | Depends On | Provides To | Shared Components |
|---------|------------|-------------|-------------------|
| Visual Diff Viewer | Version Comparison | Branch Locking | DiffEngine, LineMapper |
| Branch Locking | Approval Workflow | Change Comments | LockManager, AuditLogger |
| Change Comments | Visual Diff Viewer | Approval Workflow | CommentStore, @MentionService |
| Approval Workflow | Branch Locking | Version Comparison | StateMachine, Notifier |
| Version Comparison | All Features | - | TimelineRenderer, DiffAnalyzer |
## Critical Integration Points
- Lock status visibility in diff viewer (Line 14 ↔ Line 58)
- Comment threads in approval decisions (Line 31 ↔ Line 85)
- Comparison metadata for rollback safety (Line 6 ↔ Line 128)

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@@ -1,325 +0,0 @@
# Version Control System Technical Implementation Guide
## System Overview
The version control system implements full VCS capabilities with branching, merging, and collaboration features, building upon django-simple-history while adding robust versioning capabilities across the full stack.
## Core VCS Features
### 1. Branching System
```python
from vcs.models import VersionBranch, VersionTag, ChangeSet
class BranchManager:
def create_branch(name: str, parent: Optional[VersionBranch] = None):
"""Create a new branch"""
return VersionBranch.objects.create(
name=name,
parent=parent,
metadata={'created_by': current_user}
)
def merge_branches(source: VersionBranch, target: VersionBranch):
"""Merge two branches with conflict resolution"""
merger = MergeStrategy()
return merger.merge(source, target)
def list_branches():
"""Get all branches with their relationships"""
return VersionBranch.objects.select_related('parent').all()
```
### 2. Change Tracking
```python
class ChangeTracker:
def record_change(model_instance, change_type, metadata=None):
"""Record a change in the system"""
return ChangeSet.objects.create(
instance=model_instance,
change_type=change_type,
metadata=metadata or {},
branch=get_current_branch()
)
def get_changes(branch: VersionBranch):
"""Get all changes in a branch"""
return ChangeSet.objects.filter(branch=branch).order_by('created_at')
```
### 3. Frontend Integration
#### State Management (React/TypeScript)
```typescript
interface VCSState {
currentBranch: Branch;
branches: Branch[];
changes: Change[];
conflicts: Conflict[];
}
class VCSStore {
private state: VCSState;
async switchBranch(branchName: string): Promise<void> {
// Implementation
}
async createBranch(name: string): Promise<void> {
// Implementation
}
async mergeBranch(source: string, target: string): Promise<void> {
// Implementation
}
}
```
#### UI Components
```typescript
// Branch Selector Component
const BranchSelector: React.FC = () => {
const branches = useVCSStore(state => state.branches);
return (
<div className="branch-selector">
{branches.map(branch => (
<BranchItem key={branch.id} branch={branch} />
))}
</div>
);
};
// Change History Component
const ChangeHistory: React.FC = () => {
const changes = useVCSStore(state => state.changes);
return (
<div className="change-history">
{changes.map(change => (
<ChangeItem key={change.id} change={change} />
))}
</div>
);
};
```
### 4. API Integration
#### Django REST Framework ViewSets
```python
class VCSViewSet(viewsets.ModelViewSet):
@action(detail=True, methods=['post'])
def create_branch(self, request):
name = request.data.get('name')
parent = request.data.get('parent')
branch = BranchManager().create_branch(name, parent)
return Response(BranchSerializer(branch).data)
@action(detail=True, methods=['post'])
def merge(self, request):
source = request.data.get('source')
target = request.data.get('target')
try:
result = BranchManager().merge_branches(source, target)
return Response(result)
except MergeConflict as e:
return Response({'conflicts': e.conflicts}, status=409)
```
### 5. Conflict Resolution
```python
class ConflictResolver:
def detect_conflicts(source: ChangeSet, target: ChangeSet) -> List[Conflict]:
"""Detect conflicts between changes"""
conflicts = []
# Implementation
return conflicts
def resolve_conflict(conflict: Conflict, resolution: Resolution):
"""Apply conflict resolution"""
with transaction.atomic():
# Implementation
```
### 6. Real-time Collaboration
```python
class CollaborationConsumer(AsyncWebsocketConsumer):
async def connect(self):
await self.channel_layer.group_add(
f"branch_{self.branch_id}",
self.channel_name
)
async def receive_change(self, event):
"""Handle incoming changes"""
change = event['change']
await self.process_change(change)
```
## Best Practices
### 1. Branch Management
- Create feature branches for isolated development
- Use meaningful branch names
- Clean up merged branches
- Regular synchronization with main branch
### 2. Change Management
- Atomic changes
- Clear change descriptions
- Related changes grouped in changesets
- Regular commits
### 3. Conflict Resolution
- Early conflict detection
- Clear conflict documentation
- Structured resolution process
- Team communication
### 4. Performance Optimization
- Efficient change tracking
- Optimized queries
- Caching strategy
- Background processing
### 5. Security
- Access control
- Audit logging
- Data validation
- Secure transmission
## Implementation Examples
### 1. Creating a New Branch
```python
branch_manager = BranchManager()
feature_branch = branch_manager.create_branch(
name="feature/new-ui",
parent=main_branch
)
```
### 2. Recording Changes
```python
change_tracker = ChangeTracker()
change = change_tracker.record_change(
instance=model_object,
change_type="update",
metadata={"field": "title", "reason": "Improvement"}
)
```
### 3. Merging Branches
```python
try:
result = branch_manager.merge_branches(
source=feature_branch,
target=main_branch
)
except MergeConflict as e:
conflicts = e.conflicts
resolution = conflict_resolver.resolve_conflicts(conflicts)
result = branch_manager.apply_resolution(resolution)
```
## Error Handling
### 1. Branch Operations
```python
try:
branch = branch_manager.create_branch(name)
except BranchExistsError:
# Handle duplicate branch
except InvalidBranchNameError:
# Handle invalid name
```
### 2. Merge Operations
```python
try:
result = branch_manager.merge_branches(source, target)
except MergeConflictError as e:
# Handle merge conflicts
except InvalidBranchError:
# Handle invalid branch
```
## Monitoring
### 1. Performance Monitoring
```python
class VCSMonitor:
def track_operation(operation_type, duration):
"""Track operation performance"""
def check_system_health():
"""Verify system health"""
```
### 2. Error Tracking
```python
class ErrorTracker:
def log_error(error_type, details):
"""Log system errors"""
def analyze_errors():
"""Analyze error patterns"""
```
## Testing
### 1. Unit Tests
```python
class BranchTests(TestCase):
def test_branch_creation(self):
"""Test branch creation"""
def test_branch_merge(self):
"""Test branch merging"""
```
### 2. Integration Tests
```python
class VCSIntegrationTests(TestCase):
def test_complete_workflow(self):
"""Test complete VCS workflow"""
def test_conflict_resolution(self):
"""Test conflict resolution"""
```
## Deployment Considerations
### 1. Database Migrations
- Create necessary tables
- Add indexes
- Handle existing data
### 2. Cache Setup
- Configure Redis
- Set up caching strategy
- Implement cache invalidation
### 3. Background Tasks
- Configure Celery
- Set up task queues
- Monitor task execution
## Maintenance
### 1. Regular Tasks
- Clean up old branches
- Optimize database
- Update indexes
- Verify backups
### 2. Monitoring Tasks
- Check system health
- Monitor performance
- Track error rates
- Analyze usage patterns

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@@ -1,86 +0,0 @@
# Version Control UI Template Integration
## Templates Requiring VCS Integration
### Park System
- [x] parks/templates/parks/park_detail.html - Completed
- [ ] parks/templates/parks/park_list.html - Add version status indicators
- [ ] parks/templates/parks/park_area_detail.html - Add version control UI
### Rides System
- [ ] rides/templates/rides/ride_detail.html - Add version control UI
- [ ] rides/templates/rides/ride_list.html - Add version status indicators
### Reviews System
- [ ] reviews/templates/reviews/review_detail.html - Add version control UI
- [ ] reviews/templates/reviews/review_list.html - Add version status indicators
### Company System
- [ ] companies/templates/companies/company_detail.html - Add version control UI
- [ ] companies/templates/companies/company_list.html - Add version status indicators
## Integration Guidelines
### Detail Templates
For detail templates, add the version control UI below the main title:
```html
<!-- Title Section -->
<h1>{{ object.name }}</h1>
<!-- Version Control UI -->
{% include "history_tracking/includes/version_control_ui.html" %}
<!-- Rest of the content -->
```
### List Templates
For list templates, add version indicators in the list items:
```html
{% for item in object_list %}
<div class="item">
<h2>{{ item.name }}</h2>
{% if version_control.vcs_enabled %}
<div class="version-info text-sm text-gray-600">
Branch: {{ item.get_version_info.current_branch.name }}
</div>
{% endif %}
</div>
{% endfor %}
```
## Integration Steps
1. Update base template to include necessary JavaScript
```html
<!-- In base.html -->
<script src="{% static 'js/version-control.js' %}"></script>
```
2. Add version control UI to detail views
- Include the version control UI component
- Add branch switching functionality
- Display version history
3. Add version indicators to list views
- Show current branch
- Indicate if changes are pending
- Show version status
4. Update view classes
- Ensure models inherit from HistoricalModel
- Add version control context
- Handle branch switching
5. Test integration
- Verify UI appears correctly
- Test branch switching
- Verify history tracking
- Test merge functionality
## Next Steps
1. Create park area detail template with version control
2. Update ride detail template
3. Add version control to review system
4. Integrate with company templates

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@@ -1,90 +0,0 @@
# Version Control System Type Fixes
## Completed Fixes
### 1. managers.py ✓
- Added proper UserModel TypeVar
- Fixed type hints for User references
- Added missing type imports
- Improved type safety in method signatures
### 2. utils.py ✓
- Updated User type hints
- Consistent use of UserModel TypeVar
- Fixed return type annotations
- Added proper type imports
## Remaining Checks
### 1. models.py
- [ ] Check User related fields
- [ ] Verify ForeignKey type hints
- [ ] Review manager annotations
- [ ] Check metaclass type hints
### 2. views.py
- [ ] Verify request.user type hints
- [ ] Check class-based view type hints
- [ ] Review context type hints
- [ ] Check form handling types
### 3. signals.py
- [ ] Check signal receiver type hints
- [ ] Verify sender type annotations
- [ ] Review instance type hints
- [ ] Check User type usage
### 4. context_processors.py
- [ ] Verify request type hints
- [ ] Check context dictionary types
- [ ] Review User type usage
## Type Safety Guidelines
1. User Type Pattern:
```python
UserModel = TypeVar('UserModel', bound=AbstractUser)
User = cast(Type[UserModel], get_user_model())
def my_function(user: Optional[UserModel] = None) -> Any:
pass
```
2. Model References:
```python
from django.db.models import Model, QuerySet
from typing import Type, TypeVar
T = TypeVar('T', bound=Model)
def get_model(model_class: Type[T]) -> QuerySet[T]:
pass
```
3. Generic Views:
```python
from typing import TypeVar, Generic
from django.views.generic import DetailView
T = TypeVar('T', bound=Model)
class MyDetailView(DetailView, Generic[T]):
model: Type[T]
```
## Next Steps
1. Audit Remaining Files:
- Review all files for type hint consistency
- Update any deprecated type hint syntax
- Add missing type hints where needed
2. Type Testing:
- Run mypy checks
- Verify Pylance reports
- Test with strict type checking
3. Documentation:
- Document type patterns used
- Update technical guide with type hints
- Add type checking to contribution guide

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@@ -1,110 +0,0 @@
# Version Control System UI Improvements
## Recent Improvements
### 1. Template Structure Enhancement
- Moved map initialization to dedicated JavaScript file
- Implemented data attribute pattern for passing data to JavaScript
- Improved template organization and maintainability
### 2. JavaScript Organization
- Created separate `map-init.js` for map functionality
- Established pattern for external JavaScript files
- Improved error handling and script loading
### 3. Asset Management
```javascript
// Static Asset Organization
/static/
/js/
version-control.js // Core VCS functionality
map-init.js // Map initialization logic
/css/
version-control.css // VCS styles
```
## Best Practices Established
### 1. Data Passing Pattern
```html
<!-- Using data attributes for JavaScript configuration -->
<div id="map"
data-lat="{{ coordinates.lat }}"
data-lng="{{ coordinates.lng }}"
data-name="{{ name }}">
</div>
```
### 2. JavaScript Separation
```javascript
// Modular JavaScript organization
document.addEventListener('DOMContentLoaded', function() {
// Initialize components
const mapContainer = document.getElementById('map');
if (mapContainer) {
// Component-specific logic
}
});
```
### 3. Template Structure
```html
{% block content %}
<!-- Main content -->
{% endblock %}
{% block extra_js %}
{{ block.super }}
<!-- Component-specific scripts -->
<script src="{% static 'js/component-script.js' %}"></script>
{% endblock %}
```
## Integration Guidelines
### 1. Adding New Components
1. Create dedicated JavaScript file in `/static/js/`
2. Use data attributes for configuration
3. Follow established loading pattern
4. Update base template if needed
### 2. Version Control UI
1. Include version control UI component
2. Add necessary data attributes
3. Ensure proper script loading
4. Follow established patterns
### 3. Static Asset Management
1. Keep JavaScript files modular
2. Use proper static file organization
3. Follow naming conventions
4. Maintain clear dependencies
## Next Steps
1. Apply this pattern to other templates:
- Ride detail template
- Review detail template
- Company detail template
2. Implement consistent error handling:
```javascript
function handleError(error) {
console.error('Component error:', error);
// Handle error appropriately
}
```
3. Add performance monitoring:
```javascript
// Add timing measurements
const startTime = performance.now();
// Component initialization
const endTime = performance.now();
console.debug(`Component initialized in ${endTime - startTime}ms`);
```
4. Documentation updates:
- Add JavaScript patterns to technical guide
- Update template integration guide
- Document asset organization

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@@ -1,47 +0,0 @@
# Version Comparison Tool Implementation Plan
## Core Requirements
1. Multi-version timeline visualization
2. Three-way merge preview
3. Change impact analysis
4. Rollback capabilities
5. Performance baseline: <500ms for 100-file diffs
## Technical Integration
- **Diff Algorithm**
Enhance visual-diff-viewer.md component (line 10):
```typescript
interface ComparisonEngine {
compareVersions(versions: string[]): StructuredDiff[];
calculateImpactScore(diffs: StructuredDiff[]): number;
}
```
- **Model Extensions**
Update VersionTag (line 6):
```python
class VersionTag(models.Model):
comparison_metadata = models.JSONField(default=dict) # Stores diff stats
```
- **API Endpoints**
Add to VersionControlViewSet (line 128):
```python
@action(detail=False, methods=['post'])
def bulk_compare(self, request):
"""Process multi-version comparisons"""
```
## Performance Strategy
| Aspect | Solution | Target |
|--------|----------|--------|
| Diff computation | Background workers | 90% async processing |
| Result caching | Redis cache layer | 5min TTL |
| Large files | Chunked processing | 10MB chunks |
| UI rendering | Virtualized scrolling | 60fps maintain |
## Phase Plan
1. **Week 1**: Core comparison algorithm
2. **Week 2**: Timeline visualization UI
3. **Week 3**: Performance optimization
4. **Week 4**: Rollback safety mechanisms

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@@ -1,39 +0,0 @@
# Visual Diff Viewer Implementation Plan
## Core Requirements
1. Side-by-side comparison interface
2. Syntax highlighting for code diffs
3. Inline comment anchoring
4. Change navigation controls
5. Performance budget: 200ms render time
## Technical Integration
- **Frontend**
Extend `DiffViewer` component (line 62) with:
```typescript
interface EnhancedDiffViewer {
renderStrategy: 'inline' | 'side-by-side';
syntaxHighlighters: Map<string, Highlighter>;
commentThreads: CommentThread[];
}
```
- **Backend**
Enhance `ChangeTracker.compute_diff()` (line 156):
```python
def compute_enhanced_diff(self, version1, version2):
"""Return structured diff with syntax metadata"""
```
## Dependency Matrix
| Component | Affected Lines | Modification Type |
|-----------|----------------|--------------------|
| HistoricalChangeMixin | Current impl. line 6 | Extension |
| CollaborationSystem | line 90 | Event handling |
| VersionControlUI | line 62 | Props update |
## Phase Plan
1. **Week 1**: Diff algorithm optimization
2. **Week 2**: UI component development
3. **Week 3**: Performance testing
4. **Week 4**: Security review

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@@ -1,53 +0,0 @@
# Version Control Security Audit Checklist
## Core Security Domains
1. **Authentication**
- [ ] MFA required for lock overrides (Branch Locking.md Line 58)
- [ ] Session invalidation on permission changes
2. **Authorization**
- [ ] Role hierarchy enforcement (Approval Workflow.md Line 22)
- [ ] Context-sensitive permission checks
3. **Data Protection**
- [ ] Encryption of comparison metadata (Version Comparison.md Line 6)
- [ ] Audit log integrity verification
4. **Workflow Security**
- [ ] State machine tamper detection (Approval Workflow.md Line 45)
- [ ] Comment edit history immutability
## Threat Mitigation Table
| Threat Type | Affected Feature | Mitigation Strategy |
|-------------|------------------|---------------------|
| Race Conditions | Branch Locking | Optimistic locking with version stamps |
| XSS | Change Comments | DOMPurify integration (Line 89) |
| Data Leakage | Version Comparison | Strict field-level encryption |
| Repudiation | Approval Workflow | Blockchain-style audit trail |
## Testing Procedures
1. **Penetration Tests**
- Lock bypass attempts via API fuzzing
- Approval state injection attacks
2. **Static Analysis**
- OWASP ZAP scan configuration
- SonarQube security rule activation
3. **Runtime Monitoring**
- Unauthorized diff access alerts
- Abnormal approval pattern detection
## Phase Integration
| Development Phase | Security Focus |
|--------------------|----------------|
| Locking Implementation | Permission model validation |
| Workflow Development | State transition auditing |
| Comment System | Content sanitization checks |
| Comparison Tool | Data anonymization tests |
## Severity Levels
- **Critical**: Direct system access vulnerabilities
- **High**: Data integrity risks
- **Medium**: UX security weaknesses
- **Low**: Informational exposure

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@@ -1,12 +0,0 @@
# OWASP Top 10 Compliance Mapping
| OWASP Item | Our Implementation | Verification Method |
|------------|--------------------|---------------------|
| A01:2021-Broken Access Control | Branch Locking permissions (Line 58) | Penetration testing |
| A03:2021-Injection | Comment sanitization (Line 89) | Static code analysis |
| A05:2021-Security Misconfiguration | Version Tag defaults (Line 6) | Configuration audits |
| A08:2021-Software/Data Integrity Failures | Audit logging (Checklist 3.4) | Checksum verification |
## Critical Compliance Gaps
1. Cryptographic failures (Data at rest encryption) - Scheduled for Phase 3
2. Server-side request forgery - Requires API gateway hardening

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@@ -1,44 +0,0 @@
# Security Test Case Template
## Authentication Tests
```gherkin
Scenario: Lock override with expired session
Given an active branch lock
When session expires during override attempt
Then system should reject with 401 Unauthorized
And log security event "LOCK_OVERRIDE_FAILURE"
```
## Injection Prevention
```gherkin
Scenario: XSS in change comments
When submitting comment with <script>alert(1)</script>
Then response should sanitize to "&amp;lt;script&amp;gt;alert(1)&amp;lt;/script&amp;gt;"
And store original input in quarantine
```
## Data Integrity
```gherkin
Scenario: Unauthorized diff modification
Given approved version comparison
When altering historical diff metadata
Then checksum validation should fail
And trigger auto-rollback procedure
```
## Workflow Security
```gherkin
Scenario: Approval state bypass
Given pending approval workflow
When attempting direct state transition
Then enforce state machine rules
And log "ILLEGAL_STATE_CHANGE" event
```
## Monitoring Tests
```gherkin
Scenario: Abnormal approval patterns
Given 10 rapid approvals from same IP
When monitoring system detects anomaly
Then freeze approval process
And notify security team

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@@ -21,72 +21,6 @@
- Implement component-based structure
- Follow progressive enhancement
## Version Control Patterns
### Change Management
1. Batch Processing
```python
class BatchChangeProcessor:
def process_changes(self, changes, chunk_size=100):
"""Process changes in efficient batches"""
with transaction.atomic():
for chunk in chunked_queryset(changes, chunk_size):
self._process_chunk(chunk)
```
2. Caching Strategy
```python
class VersionCache:
def cache_history(self, instance):
"""Cache version history with TTL"""
key = f"version_history_{instance.pk}"
if not cache.get(key):
history = instance.get_history()
cache.set(key, history, timeout=3600)
```
3. Change Tracking
```python
class ChangeTracker:
def track_changes(self, instance):
"""Track changes with metadata"""
return {
'changes': self._diff_changes(instance),
'metadata': self._collect_metadata(),
'performance': self._get_metrics()
}
```
### Performance Optimization
1. Query Patterns
```python
class HistoryQuerySet:
def optimized_history(self):
"""Optimized history query"""
return self.select_related('branch')\
.prefetch_related('changes')\
.defer('large_fields')
```
2. Async Operations
```python
class AsyncVersionControl:
async def process_large_changes(self):
"""Handle large changes asynchronously"""
async with atomic():
# Async processing logic
```
3. Archiving Strategy
```python
class HistoryArchiver:
def archive_old_versions(self, age_days=90):
"""Archive old version history"""
threshold = timezone.now() - timedelta(days=age_days)
return self._move_to_archive(threshold)
```
## Design Patterns
### Data Access
@@ -101,8 +35,6 @@
- Implement model-level caching
- Use Redis for session storage
- Cache invalidation rules
- Version history caching
- Differential caching for changes
### Frontend Patterns
@@ -130,35 +62,6 @@
</div>
```
## Version Control UI Patterns
1. Change Visualization
```html
<!-- Diff View Pattern -->
<div class="diff-view"
x-data="diffViewer"
x-init="loadDiff()">
<div class="diff-header"></div>
<div class="diff-content"></div>
</div>
```
2. Branch Management
```html
<!-- Branch Selector Pattern -->
<div class="branch-selector"
x-data="branchManager"
@branch-changed="updateContent()">
```
3. Merge Resolution
```html
<!-- Conflict Resolution Pattern -->
<div class="conflict-resolver"
x-data="conflictResolver"
@resolve="handleResolution()">
```
## Authentication Patterns
### User Management
@@ -220,25 +123,14 @@
## Testing Patterns
### Performance Testing
### Unit Tests
```python
class VersionControlPerformanceTests(TestCase):
class ModelTests(TestCase):
def setUp(self):
self.large_dataset = self.create_test_data()
# Test setup
def test_batch_processing_performance(self):
start_time = time.time()
self.processor.process_changes(self.large_dataset)
duration = time.time() - start_time
self.assertLess(duration, self.acceptable_threshold)
```
### Scale Testing
```python
class ScaleTestCase(TestCase):
def test_version_history_scaling(self):
with self.assertNumQueries(1): # Ensure efficient querying
self.repository.get_history()
def test_specific_functionality(self):
# Test implementation
```
### Integration Tests
@@ -270,10 +162,4 @@ class ViewTests(TestCase):
- Code review
- Testing verification
- Documentation update
- Deployment planning
4. Performance Review
- Query analysis
- Cache efficiency
- Load testing
- Scalability verification
- Deployment planning

View File

@@ -5,8 +5,7 @@
### Stack Components
- **Framework**: Django (MVT Architecture)
- **Frontend**: HTMX + AlpineJS + Tailwind CSS
- **Database**: PostgreSQL with Django ORM
- **Cache**: Redis for application and version control
- **Database**: Django ORM
- **Authentication**: Django Built-in Auth
## Technical Architecture
@@ -26,15 +25,6 @@
- Validation rules
- Signal handlers
- Database migrations
- Version control tracking
3. Version Control System
- Branching and merging capabilities
- Change tracking with history
- Batch processing operations
- Caching strategy using Redis
- Performance monitoring
- Multi-level model versioning
### Frontend Architecture
1. HTMX Integration
@@ -42,14 +32,12 @@
- Partial page renders
- Server-side processing
- Progressive enhancement
- Version control UI updates
2. AlpineJS Usage
- UI state management
- Component behaviors
- Event handling
- DOM manipulation
- Version control interactions
3. Tailwind CSS
- Utility-first styling
@@ -59,67 +47,32 @@
## Integration Patterns
### Version Control Integration
1. Model Integration
```python
class VersionedModel(HistoricalModel):
# Base class for version-controlled models
history = HistoricalRecords()
version_control = VersionControlManager()
```
2. Change Tracking
```python
# Automatic change tracking
with branch_context(branch):
model.save() # Changes tracked in branch
```
3. Batch Operations
```python
# Efficient batch processing
with BatchOperation() as batch:
batch.process_changes(changes)
```
### Template System
1. Structure
- Base templates
- Model-specific partials
- Reusable components
- Template inheritance
- Version control components
2. HTMX Patterns
- Partial updates
- Server triggers
- Event handling
- Response processing
- Version history display
### State Management
1. Server-side
- Django sessions
- Database state
- Cache management
- Version control state
- Branch management
2. Client-side
- AlpineJS state
- Local storage
- HTMX state management
- Version control UI state
## Performance Requirements
### Version Control Performance
- Batch processing for large changes
- Efficient caching with Redis
- Optimized query patterns
- Parallel processing capability
- Monitoring and metrics
### Frontend Targets
- First contentful paint < 1.5s
- Time to interactive < 2s
@@ -132,25 +85,20 @@
- Caching strategy
- Asset optimization
- API response times
- Version control overhead management
## Development Environment
### Required Tools
- Python 3.8+ with virtual environment
- Python with virtual environment
- Node.js (Tailwind build)
- Git version control
- VSCode IDE
- Redis 6.0+
- PostgreSQL 12+
### Configuration
- Environment variables
- Development settings
- Database setup
- Media handling
- Redis configuration
- Version control settings
## Security Framework
@@ -159,14 +107,12 @@
- Session management
- Permission levels
- User roles
- Version control access control
### Data Protection
- CSRF protection
- XSS prevention
- SQL injection prevention
- Input validation
- Version history integrity
## Testing Strategy
@@ -175,15 +121,12 @@
- Unit tests
- Integration tests
- Coverage requirements
- Version control tests
- Performance tests
### Frontend Testing
- Browser testing
- Performance metrics
- Accessibility testing
- User flow validation
- Version control UI testing
## Deployment Process
@@ -192,15 +135,12 @@
- Database migration
- Static file handling
- SSL/TLS setup
- Redis setup
- Version control initialization
### Monitoring
- Error tracking
- Performance monitoring
- User analytics
- System health checks
- Version control metrics
## Documentation Requirements
@@ -209,11 +149,9 @@
- Type hints
- Component documentation
- API documentation
- Version control documentation
### System Documentation
- Setup guides
- Architecture docs
- Maintenance procedures
- Troubleshooting guides
- Version control guides
- Troubleshooting guides