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A convenience wrapper function that logs approval-related events by delegating to a generic log_event function with the resource_type fixed as 'Approval'.

Purpose

This function provides a specialized interface for logging audit trail events specifically related to approval workflows. It simplifies the logging of approval events by automatically setting the resource_type to 'Approval' and forwarding all other parameters to the underlying log_event function. This is useful for tracking approval actions such as creation, modification, submission, or deletion of approval records in a document management system.

Source Code

def log_approval_event(event_type: str,
                     user: Union[DocUser, str],
                     approval_uid: str,
                     details: Optional[Dict[str, Any]] = None) -> Optional[str]:
    """
    Log an approval event.
    
    Args:
        event_type: Type of event from EVENT_TYPES
        user: User who performed the action or their UID
        approval_uid: UID of approval
        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=approval_uid,
        resource_type='Approval',
        details=details
    )

Parameters

Parameter Details

event_type: A string representing the type of event being logged. Should be one of the predefined values from EVENT_TYPES constant (not shown in code but referenced in docstring). Examples might include 'created', 'updated', 'submitted', 'approved', 'rejected', etc.

user: The user who performed the approval action. Can be either a DocUser object (a custom 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.

approval_uid: A string containing the unique identifier (UID) of the approval record being logged. This links the audit event to the specific approval resource in the database.

details: An optional dictionary containing additional contextual information about the event. Can include any key-value pairs relevant to the specific event type, such as changed fields, reasons for actions, timestamps, or other metadata. Defaults to None if not provided.

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 event creation failed for any reason (database error, validation failure, etc.).

Dependencies

• logging
• uuid
• typing
• datetime
• json
• CDocs

Required Imports

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

Usage Example

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

# Example 1: Log approval creation with DocUser object
user = DocUser.get_by_uid('user_123')
event_uid = log_approval_event(
    event_type='created',
    user=user,
    approval_uid='approval_456',
    details={'status': 'pending', 'priority': 'high'}
)
if event_uid:
    print(f'Logged approval creation event: {event_uid}')

# Example 2: Log approval submission with user UID string
event_uid = log_approval_event(
    event_type='submitted',
    user='user_789',
    approval_uid='approval_456',
    details={'submitted_at': '2023-10-15T10:30:00Z', 'comment': 'Ready for review'}
)

# Example 3: Log approval without additional details
event_uid = log_approval_event(
    event_type='approved',
    user='user_123',
    approval_uid='approval_456'
)

Best Practices

• Always use valid event_type values from the EVENT_TYPES constant to ensure consistency in audit logs
• Check the return value to verify that the event was successfully logged before proceeding with critical operations
• Include meaningful details in the details parameter to provide context for future audit reviews
• Use DocUser objects when available for richer user information in audit trails, but user UID strings are acceptable when the full object is not accessible
• Ensure the approval_uid corresponds to an existing approval record in the database
• Consider wrapping calls in try-except blocks if the underlying log_event function may raise exceptions
• Use this function consistently for all approval-related events to maintain a complete audit trail

Tags

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