Split up backend modules

chainsyncer/backend/memory.py

@@ -0,0 +1,51 @@
+# standard imports
+import logging
+
+logg = logging.getLogger().getChild(__name__)
+
+
+class MemBackend:
+
+    def __init__(self, chain_spec, object_id, target_block=None):
+        self.object_id = object_id
+        self.chain_spec = chain_spec
+        self.block_height = 0
+        self.tx_height = 0
+        self.flags = 0
+        self.target_block = target_block
+        self.db_session = None
+
+
+    def connect(self):
+        pass
+
+
+    def disconnect(self):
+        pass
+
+
+    def set(self, block_height, tx_height):
+        logg.debug('stateless backend received {} {}'.format(block_height, tx_height))
+        self.block_height = block_height
+        self.tx_height = tx_height
+
+
+    def get(self):
+        return ((self.block_height, self.tx_height), self.flags)
+
+
+    def target(self):
+        return (self.target_block, self.flags)
+
+
+    def register_filter(self, name):
+        pass
+
+
+    def complete_filter(self, n):
+        pass
+
+
+    def __str__(self):
+        return "syncer membackend chain {} cursor".format(self.get())
+        

chainsyncer/backend/sql.py

@@ -10,7 +10,7 @@ from chainsyncer.db.models.sync import BlockchainSync
 from chainsyncer.db.models.filter import BlockchainSyncFilter
 from chainsyncer.db.models.base import SessionBase
 
-logg = logging.getLogger(__name__)
+logg = logging.getLogger().getChild(__name__)
 
 
 class SyncerBackend:
@@ -287,57 +287,12 @@ class SyncerBackend:
 
 
     def complete_filter(self, n):
+        self.connect()
         self.db_object_filter.set(n)
-
+        self.db_session.add(self.db_object_filter)
+        self.db_session.commit()
+        self.disconnect()
 
 
     def __str__(self):
         return "syncerbackend chain {} start {} target {}".format(self.chain(), self.start(), self.target())
-        
-
-
-class MemBackend:
-
-    def __init__(self, chain_spec, object_id, target_block=None):
-        self.object_id = object_id
-        self.chain_spec = chain_spec
-        self.block_height = 0
-        self.tx_height = 0
-        self.flags = 0
-        self.target_block = target_block
-        self.db_session = None
-
-
-    def connect(self):
-        pass
-
-
-    def disconnect(self):
-        pass
-
-
-    def set(self, block_height, tx_height):
-        logg.debug('stateless backend received {} {}'.format(block_height, tx_height))
-        self.block_height = block_height
-        self.tx_height = tx_height
-
-
-    def get(self):
-        return ((self.block_height, self.tx_height), self.flags)
-
-
-    def target(self):
-        return (self.target_block, self.flags)
-
-
-    def register_filter(self, name):
-        pass
-
-
-    def complete_filter(self, n):
-        pass
-
-
-    def __str__(self):
-        return "syncer membackend chain {} cursor".format(self.get())
-