Use database as source for initializing connector

fedireads/connectors/abstract_connector.py

@@ -1,6 +1,7 @@
 ''' functionality outline for a book data connector '''
 from abc import ABC, abstractmethod
 
+from fedireads import models
 from fedireads.connectors import CONNECTORS
 
 
@@ -13,15 +14,22 @@ class AbstractConnector(ABC):
         if not settings:
             raise ValueError('No connector with name "%s"' % connector_name)
 
-        try:
-            self.url = settings['BASE_URL']
-            self.covers_url = settings['COVERS_URL']
-            self.db_field = settings['DB_KEY_FIELD']
-            self.key_name = settings['KEY_NAME']
-        except KeyError:
-            raise KeyError('Invalid connector settings')
-        # TODO: politeness settings
+        info = models.Connector.objects.get(name=settings['db_name'])
+        self.model = info
 
+        self.url = info.base_url
+        self.covers_url = info.covers_url
+        self.search_url = info.search_url
+        self.key_name = info.key_name
+        self.max_query_count = info.max_query_count
+
+
+    def is_available(self):
+        ''' check if you're allowed to use this connector '''
+        if self.model.max_query_count is not None:
+            if self.model.query_count >= self.model.max_query_count:
+                return False
+        return True
 
     @abstractmethod
     def search(self, query):