Simplify bookwyrm connector abstract

bookwyrm/connectors/abstract_connector.py

@@ -16,20 +16,13 @@ class ConnectorException(HTTPError):
     ''' when the connector can't do what was asked '''
 
 
-class AbstractConnector(ABC):
-    ''' generic book data connector '''
-
+class AbstractMinimalConnector(ABC):
+    ''' just the bare bones, for other bookwyrm instances '''
     def __init__(self, identifier):
         # load connector settings
         info = models.Connector.objects.get(identifier=identifier)
         self.connector = info
 
-        self.key_mappings = []
-
-        # fields we want to look for in book data to copy over
-        # title we handle separately.
-        self.book_mappings = []
-
         # the things in the connector model to copy over
         self_fields = [
             'base_url',
@@ -44,15 +37,6 @@ class AbstractConnector(ABC):
         for field in self_fields:
             setattr(self, field, getattr(info, field))
 
-
-    def is_available(self):
-        ''' check if you're allowed to use this connector '''
-        if self.max_query_count is not None:
-            if self.connector.query_count >= self.max_query_count:
-                return False
-        return True
-
-
     def search(self, query, min_confidence=None):
         ''' free text search '''
         resp = requests.get(
@@ -70,9 +54,40 @@ class AbstractConnector(ABC):
             results.append(self.format_search_result(doc))
         return results
 
-
+    @abstractmethod
     def get_or_create_book(self, remote_id):
         ''' pull up a book record by whatever means possible '''
+
+    @abstractmethod
+    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 '''
+
+
+class AbstractConnector(AbstractMinimalConnector):
+    ''' generic book data connector '''
+    def __init__(self, identifier):
+        super().__init__(identifier)
+
+        self.key_mappings = []
+
+        # fields we want to look for in book data to copy over
+        # title we handle separately.
+        self.book_mappings = []
+
+
+    def is_available(self):
+        ''' check if you're allowed to use this connector '''
+        if self.max_query_count is not None:
+            if self.connector.query_count >= self.max_query_count:
+                return False
+        return True
+
+
+    def get_or_create_book(self, remote_id):
         # try to load the book
         book = models.Book.objects.select_subclasses().filter(
             origin_id=remote_id
@@ -157,7 +172,7 @@ class AbstractConnector(ABC):
 
     def update_book_from_data(self, book, data, update_cover=True):
         ''' for creating a new book or syncing with data '''
-        book = self.update_from_mappings(book, data, self.book_mappings)
+        book = update_from_mappings(book, data, self.book_mappings)
 
         author_text = []
         for author in self.get_authors_from_data(data):
@@ -246,39 +261,28 @@ class AbstractConnector(ABC):
     def get_cover_from_data(self, data):
         ''' load cover '''
 
-
-    @abstractmethod
-    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 expand_book_data(self, book):
         ''' get more info on a book '''
 
 
-    def update_from_mappings(self, obj, data, mappings):
-        ''' assign data to model with mappings '''
-        for mapping in mappings:
-            # check if this field is present in the data
-            value = data.get(mapping.remote_field)
-            if not value:
-                continue
+def update_from_mappings(obj, data, mappings):
+    ''' assign data to model with mappings '''
+    for mapping in mappings:
+        # check if this field is present in the data
+        value = data.get(mapping.remote_field)
+        if not value:
+            continue
 
-            # extract the value in the right format
-            try:
-                value = mapping.formatter(value)
-            except:
-                continue
+        # extract the value in the right format
+        try:
+            value = mapping.formatter(value)
+        except:
+            continue
 
-            # assign the formatted value to the model
-            obj.__setattr__(mapping.local_field, value)
-        return obj
+        # assign the formatted value to the model
+        obj.__setattr__(mapping.local_field, value)
+    return obj
 
 
 def get_date(date_string):

bookwyrm/connectors/bookwyrm_connector.py

@@ -1,9 +1,9 @@
 ''' using another bookwyrm instance as a source of book data '''
 from bookwyrm import activitypub, models
-from .abstract_connector import AbstractConnector, SearchResult
+from .abstract_connector import AbstractMinimalConnector, SearchResult
 
 
-class Connector(AbstractConnector):
+class Connector(AbstractMinimalConnector):
     ''' this is basically just for search '''
 
     def get_or_create_book(self, remote_id):
@@ -14,24 +14,3 @@ class Connector(AbstractConnector):
 
     def format_search_result(self, search_result):
         return SearchResult(**search_result)
-
-    def get_remote_id_from_data(self, data):
-        pass
-
-    def is_work_data(self, data):
-        pass
-
-    def get_edition_from_work_data(self, data):
-        pass
-
-    def get_work_from_edition_date(self, data):
-        pass
-
-    def get_cover_from_data(self, data):
-        pass
-
-    def expand_book_data(self, book):
-        pass
-
-    def get_authors_from_data(self, data):
-        pass

bookwyrm/connectors/openlibrary.py

@@ -7,7 +7,7 @@ from django.core.files.base import ContentFile
 from bookwyrm import models
 from .abstract_connector import AbstractConnector, SearchResult, Mapping
 from .abstract_connector import ConnectorException
-from .abstract_connector import get_date, get_data
+from .abstract_connector import get_date, get_data, update_from_mappings
 from .openlibrary_languages import languages
 
 
@@ -184,7 +184,7 @@ class Connector(AbstractConnector):
         data = get_data(url)
 
         author = models.Author(openlibrary_key=olkey)
-        author = self.update_from_mappings(author, data, self.author_mappings)
+        author = update_from_mappings(author, data, self.author_mappings)
         name = data.get('name')
         # TODO this is making some BOLD assumption
         if name: