fix: remove parent_id until backwards compat bug is addressed (#252)

Original issue:
#237
Core library fix:
Unstructured-IO/unstructured#1526

Anyone who calls `partition_via_api` will hit this bug until they
upgrade `unstructured`, which includes any Langchain users of
`UnstructuredAPIFileLoader`. The immediate fix is to remove `parent_id`
from the hosted api. Next, we can ensure that [langchain
users](langchain-ai/langchain#11025) are up to
date. Finally, the core library fix above will address any new fields
going forward. It will be safe to readd the `parent_id` once users are
generally on `unstructured>=0.10.15`.

Author: awalker4

CHANGELOG.md

@@ -1,6 +1,7 @@
-## 0.0.47-dev0
+## 0.0.47-dev1
 
 * **Adds `chunking_strategy` kwarg and associated params** These params allow users to "chunk" elements into larger or smaller `CompositeElement`s
+* **Remove `parent_id` from the element metadata**. New metadata fields are causing errors with existing installs. We'll readd this once a fix is widely available.
 
 ## 0.0.46
 

prepline_general/api/general.py

@@ -436,6 +436,11 @@ def pipeline_api(
         if element.metadata.detection_class_prob:
             elements[i].metadata.detection_class_prob = None
 
+        # Remove this until new md fields aren't breaking users
+        # See https://github.com/Unstructured-IO/unstructured/pull/1526
+        if element.metadata.parent_id:
+            elements[i].metadata.parent_id = None
+
     if response_type == "text/csv":
         df = convert_to_dataframe(elements)
         return df.to_csv(index=False)