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A convenience wrapper function that logs audit events specifically for document version operations by delegating to a generic log_event function with the resource_type fixed as 'DocumentVersion'.

Purpose

This function provides a specialized interface for logging audit trail events related to document versions in a document management system. It simplifies the logging process by automatically setting the resource type to 'DocumentVersion' and forwarding all parameters to the underlying log_event function. This is useful for tracking version-related activities such as creation, updates, deletions, or access events for document versions.

Source Code

def log_version_event(event_type: str,
                    user: Union[DocUser, str],
                    version_uid: str,
                    details: Optional[Dict[str, Any]] = None) -> Optional[str]:
    """
    Log a document version event.
    
    Args:
        event_type: Type of event from EVENT_TYPES
        user: User who performed the action or their UID
        version_uid: UID of document version
        details: Additional details about the event
        
    Returns:
        UID of the created audit event or None if creation failed
    """
    return log_event(
        event_type=event_type,
        user=user,
        resource_uid=version_uid,
        resource_type='DocumentVersion',
        details=details
    )

Parameters

Parameter Details

event_type: A string representing the type of event being logged. Must be a valid value from EVENT_TYPES (not shown in code but referenced in docstring). Examples might include 'created', 'updated', 'deleted', 'accessed', etc.

user: The user who performed the action. Can be either a DocUser object (a user model from the CDocs system) or a string representing the user's UID. This flexibility allows for logging events when you have either the full user object or just the identifier.

version_uid: A string containing the unique identifier (UID) of the document version that this event relates to. This is used as the resource_uid in the underlying log_event call.

details: An optional dictionary containing additional contextual information about the event. Can include any key-value pairs relevant to the specific event being logged. Defaults to None if no additional details are needed.

Return Value

Type: Optional[str]

Returns an Optional[str] which is either the UID (unique identifier) of the newly created audit event record as a string if the logging was successful, or None if the audit event creation failed for any reason (e.g., database error, validation failure).

Dependencies

• CDocs
• typing

Required Imports

from typing import Dict, Any, Optional, Union
from CDocs.models.user_extensions import DocUser

Usage Example

from typing import Dict, Any, Optional, Union
from CDocs.models.user_extensions import DocUser

# Assuming log_event is defined in the same module
# Example 1: Log a version creation event with a DocUser object
user = DocUser(uid='user123', name='John Doe')
event_uid = log_version_event(
    event_type='version_created',
    user=user,
    version_uid='version_abc123',
    details={'file_size': 1024, 'format': 'pdf'}
)
if event_uid:
    print(f'Event logged with UID: {event_uid}')

# Example 2: Log a version access event with just a user UID
event_uid = log_version_event(
    event_type='version_accessed',
    user='user456',
    version_uid='version_xyz789',
    details={'access_method': 'download', 'ip_address': '192.168.1.1'}
)

# Example 3: Log a simple event without additional details
event_uid = log_version_event(
    event_type='version_deleted',
    user='user789',
    version_uid='version_def456'
)

Best Practices

• Always provide valid event_type values that exist in the EVENT_TYPES constant to ensure consistency across the audit trail
• Include meaningful details in the details parameter to provide context for future audit reviews
• Check the return value to verify that the event was successfully logged before proceeding with critical operations
• Use DocUser objects when available for richer audit information, but user UIDs are acceptable when the full object is not accessible
• Ensure the version_uid corresponds to an actual document version in the system to maintain referential integrity
• Consider wrapping calls to this function in try-except blocks if database connectivity issues are a concern
• This function depends on log_event being defined in the same module - ensure that dependency is available

Tags

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