File

File attachment DocType.

Stores metadata about uploaded files. Actual file content
is stored via StorageAdapter (local, S3, GCS, etc.).

Attributes:
    file_name: Original filename as uploaded
    file_url: Storage URL/path for retrieval
    file_size: Size in bytes
    content_type: MIME type (e.g., "application/pdf")
    attached_to_doctype: DocType this file is attached to
    attached_to_name: Document ID this file is attached to
    is_private: If True, requires authentication to access

Example:
    file = File(
        file_name="report.pdf",
        file_url="/files/2024/01/report-abc123.pdf",
        file_size=51200,
        content_type="application/pdf",
        is_private=True,
    )

Source: file.py

Fields

Field	Type	Required	Description	Validators
file_name	str		Original filename	-
file_url	str		Storage URL/path	-
file_size	int		File size in bytes	-
content_type	str		MIME type	-
attached_to_doctype	None		DocType this file is attached to	-
attached_to_name	None		Document ID this file is attached to	-
is_private	bool		If True, requires authentication	-

Permissions

Role	Create	Delete	Read	Write
Guest			✓
User	✓	✓	✓	✓

Configuration

Setting	Value
Submittable	False
Track Changes	True

Controller

Controller hooks are implemented in *_controller.py files. Available lifecycle hooks:

• validate() - Called before save, raise exceptions for validation errors
• before_insert() - Called before inserting a new document
• after_insert() - Called after successfully inserting
• before_save() - Called before saving (insert or update)
• after_save() - Called after saving
• before_delete() - Called before deleting
• after_delete() - Called after deleting