Write
(
mapping
=
None
,
*
,
ignore_unknown_fields
=
False
,
**
kwargs
)
A write on a document. .. attribute:: update
A document to write.
Attributes
Name
Description
delete
str
A document name to delete. In the format:
projects/{project_id}/databases/{database_id}/documents/{document_path}
.transform
update_mask
google.cloud.firestore_v1.types.DocumentMask
The fields to update in this write. This field can be set only when the operation is
update
.
If the mask is not set for an update
and the document
exists, any existing data will be overwritten. If the mask
is set and the document on the server has fields not covered
by the mask, they are left unchanged. Fields referenced in
the mask, but not present in the input document, are deleted
from the document on the server. The field paths in this
mask must not contain a reserved field name.update_transforms
Sequence[ google.cloud.firestore_v1.types.DocumentTransform.FieldTransform
]
The transforms to perform after update. This field can be set only when the operation is
update
.
If present, this write is equivalent to performing update
and transform
to the same document atomically
and in order.current_document
google.cloud.firestore_v1.types.Precondition
An optional precondition on the document. The write will fail if this is set and not met by the target document.
