Integrate new filtering (#59)

* Integrate filtering operators on nuclia.py

* better doc format

* better doc format

* Add unit test for filter parsing

* Add unit test for filter parsing

* Update and delete by resource slug

* Adapt changes

docs/05-search.md

@@ -54,3 +54,35 @@ Based on a `find` request, Nuclia uses a generative AI to answer the question ba
   search = sdk.NucliaSearch()
   search.chat(query="My question")
   ```
+
+## Filtering
+
+Any endpoint that involves search (`search`, `find` and `chat`) also support more advanced filtering expressions. Expressions can have one of the following operators:
+
+- `all`: this is the default. Will make search return results containing all specified filter labels.
+- `any`: returns results containing at least one of the labels.
+- `none`: returns results that do not contain any of the labels.
+- `not_all`: returns results that do not contain all specified labels.
+
+Note that multiple expressions can be chained in the `filters` parameter and the conjunction of all of them will be computed.
+
+Here are some examples:
+
+- CLI:
+
+  ```bash
+  nuclia kb search find --query="My search" --filters="[{'any':['/icon/application/pdf','/icon/image/mp4']}]"
+  ```
+
+- SDK:
+
+  ```python
+  from nuclia import sdk
+  from nucliadb_models.search import Filter
+
+  search = sdk.NucliaSearch()
+  search.chat(
+    query="My question",
+    filters=[Filter(any=['/classification.labels/region/Europe','/classification.labels/region/Asia'])],
+  )
+  ```

nuclia/sdk/kbs.py

@@ -37,7 +37,6 @@ def list(self, account: Optional[str] = None):
                 if self._auth._config.kbs_token is not None
                 else []
             )
-
             return result
         else:
             matching_account = retrieve_account(

nuclia/sdk/search.py

@@ -4,6 +4,7 @@
 
 from nucliadb_models.search import (
     ChatRequest,
+    Filter,
     FindRequest,
     KnowledgeboxFindResults,
     Relations,
@@ -48,8 +49,8 @@ def search(
         self,
         *,
         query: Union[str, SearchRequest] = "",
-        filters: Optional[List[str]] = None,
-        **kwargs
+        filters: Optional[Union[List[str], List[Filter]]] = None,
+        **kwargs,
     ):
         """
         Perform a search query.
@@ -72,18 +73,21 @@ def find(
         query: Union[str, FindRequest] = "",
         highlight: Optional[bool] = False,
         relations: Optional[bool] = False,
-        filters: Optional[List[str]] = None,
-        **kwargs
+        filters: Optional[Union[List[str], List[Filter]]] = None,
+        **kwargs,
     ):
         """
         Perform a find query.
 
         See https://docs.nuclia.dev/docs/api#tag/Search/operation/Find_Knowledge_Box_kb__kbid__find_post
         """
-
         ndb: NucliaDBClient = kwargs["ndb"]
         if isinstance(query, str) and highlight is not None:
-            req = FindRequest(query=query, highlight=highlight, filters=(filters or []))
+            req = FindRequest(
+                query=query,
+                highlight=highlight,
+                filters=filters or [],
+            )
         elif isinstance(query, FindRequest):
             req = query
         else:
@@ -99,8 +103,8 @@ def chat(
         self,
         *,
         query: Union[str, ChatRequest],
-        filters: Optional[List[str]] = None,
-        **kwargs
+        filters: Optional[Union[List[str], List[Filter]]] = None,
+        **kwargs,
     ):
         """
         Answer a question.
@@ -109,7 +113,7 @@ def chat(
         """
         ndb: NucliaDBClient = kwargs["ndb"]
         if isinstance(query, str):
-            req = ChatRequest(query=query, filters=(filters or []))
+            req = ChatRequest(query=query, filters=filters or [])
         else:
             req = query
         response = ndb.chat(req)