918 ability to freeze datasets or version

.flake8

@@ -1,5 +1,5 @@
 [flake8]
 max-line-length = 180
-extend-ignore = E203, E266, E501, W503, E741, E711
+extend-ignore = E203, E266, E501, W503, E741, E711, E712
 exclude = .svn,CVS,.bzr,.hg,.git,__pycache__,venv/*,src/*,.rst,build
 max-complexity=16

backend/app/db/dataset/download.py

@@ -0,0 +1,21 @@
+from app.models.datasets import DatasetDB, DatasetFreezeDB
+from beanie import PydanticObjectId
+from beanie.odm.operators.update.general import Inc
+
+
+async def _increment_data_downloads(dataset_id: str):
+    # if working draft
+    if (
+        dataset := await DatasetDB.find_one(
+            DatasetDB.id == PydanticObjectId(dataset_id)
+        )
+    ) is not None:
+        await dataset.update(Inc({DatasetDB.downloads: 1}))
+
+    # if published version
+    if (
+        dataset := await DatasetFreezeDB.find_one(
+            DatasetFreezeDB.id == PydanticObjectId(dataset_id)
+        )
+    ) is not None:
+        await dataset.update(Inc({DatasetFreezeDB.downloads: 1}))