Combines search formatter and parser function

The parser was extracting the list of search results from the json
object returned by the search endpoint, and the formatter was converting
an individual json entry into a SearchResult object. This just merged
them into one function, because they are never used separately.

bookwyrm/connectors/abstract_connector.py

@@ -52,11 +52,9 @@ class AbstractMinimalConnector(ABC):
         """Format the search results based on the formt of the query"""
         # TODO: inventaire min confidence
         parser = self.parse_search_data
-        formatter = self.format_search_result
         if maybe_isbn(query):
             parser = self.parse_isbn_search_data
-            formatter = self.format_isbn_search_result
-        return [formatter(doc) for doc in parser(data)[:10]]
+        return list(parser(data))[:10]
 
     @abstractmethod
     def get_or_create_book(self, remote_id):
@@ -66,18 +64,10 @@ class AbstractMinimalConnector(ABC):
     def parse_search_data(self, data):
         """turn the result json from a search into a list"""
 
-    @abstractmethod
-    def format_search_result(self, search_result):
-        """create a SearchResult obj from json"""
-
     @abstractmethod
     def parse_isbn_search_data(self, data):
         """turn the result json from a search into a list"""
 
-    @abstractmethod
-    def format_isbn_search_result(self, search_result):
-        """create a SearchResult obj from json"""
-
 
 class AbstractConnector(AbstractMinimalConnector):
     """generic book data connector"""

bookwyrm/connectors/bookwyrm_connector.py

@@ -11,14 +11,10 @@ class Connector(AbstractMinimalConnector):
         return activitypub.resolve_remote_id(remote_id, model=models.Edition)
 
     def parse_search_data(self, data):
-        return data
-
-    def format_search_result(self, search_result):
+        for search_result in data:
             search_result["connector"] = self
-        return SearchResult(**search_result)
+            yield SearchResult(**search_result)
 
     def parse_isbn_search_data(self, data):
-        return data
-
-    def format_isbn_search_result(self, search_result):
-        return self.format_search_result(search_result)
+        for search_result in data:
+            yield self.format_search_result(search_result)

bookwyrm/connectors/inventaire.py

@@ -78,15 +78,13 @@ class Connector(AbstractConnector):
         }
 
     def parse_search_data(self, data):
-        return data.get("results")
-
-    def format_search_result(self, search_result):
+        for search_result in data.get("results"):
             images = search_result.get("image")
             cover = f"{self.covers_url}/img/entities/{images[0]}" if images else None
             # a deeply messy translation of inventaire's scores
             confidence = float(search_result.get("_score", 0.1))
             confidence = 0.1 if confidence < 150 else 0.999
-        return SearchResult(
+            yield SearchResult(
                 title=search_result.get("label"),
                 key=self.get_remote_id(search_result.get("uri")),
                 author=search_result.get("description"),
@@ -98,17 +96,12 @@ class Connector(AbstractConnector):
 
     def parse_isbn_search_data(self, data):
         """got some daaaata"""
-        results = data.get("entities")
-        if not results:
-            return []
-        return list(results.values())
-
-    def format_isbn_search_result(self, search_result):
-        """totally different format than a regular search result"""
+        results = data.get("entities", [])
+        for search_result in list(results.values()):
             title = search_result.get("claims", {}).get("wdt:P1476", [])
             if not title:
-            return None
-        return SearchResult(
+                continue
+            yield SearchResult(
                 title=title[0],
                 key=self.get_remote_id(search_result.get("uri")),
                 author=search_result.get("description"),

bookwyrm/connectors/openlibrary.py

@@ -153,15 +153,13 @@ class Connector(AbstractConnector):
         return f"{self.covers_url}/b/id/{image_name}"
 
     def parse_search_data(self, data):
-        return data.get("docs")
-
-    def format_search_result(self, search_result):
+        for search_result in data.get("docs"):
             # build the remote id from the openlibrary key
             key = self.books_url + search_result["key"]
             author = search_result.get("author_name") or ["Unknown"]
             cover_blob = search_result.get("cover_i")
             cover = self.get_cover_url([cover_blob], size="M") if cover_blob else None
-        return SearchResult(
+            yield SearchResult(
                 title=search_result.get("title"),
                 key=key,
                 author=", ".join(author),
@@ -171,14 +169,12 @@ class Connector(AbstractConnector):
             )
 
     def parse_isbn_search_data(self, data):
-        return list(data.values())
-
-    def format_isbn_search_result(self, search_result):
+        for search_result in list(data.values()):
             # build the remote id from the openlibrary key
             key = self.books_url + search_result["key"]
             authors = search_result.get("authors") or [{"name": "Unknown"}]
             author_names = [author.get("name") for author in authors]
-        return SearchResult(
+            yield SearchResult(
                 title=search_result.get("title"),
                 key=key,
                 author=", ".join(author_names),