Add changes.

crawlers/mooncrawl/mooncrawl/metadata_crawler/cli.py

@@ -11,6 +11,7 @@ from moonstreamdb.db import (
     MOONSTREAM_DB_URI,
     MOONSTREAM_POOL_SIZE,
     create_moonstream_engine,
+    yield_db_read_only_session_ctx,
 )
 from sqlalchemy.orm import sessionmaker
 from .db import (
@@ -91,11 +92,13 @@ def parse_metadata(
     db_session = process_session()
 
     # run crawling of levels
+
+    with yield_db_read_only_session_ctx() as db_session_read_only:
         try:
 
             # get all tokens with uri
             logger.info("Requesting all tokens with uri from database")
-        uris_of_tokens = get_uris_of_tokens(db_session, blockchain_type)
+            uris_of_tokens = get_uris_of_tokens(db_session_read_only, blockchain_type)
 
             tokens_uri_by_address: Dict[str, Any] = {}
 
@@ -109,11 +112,15 @@ def parse_metadata(
                 logger.info(f"Starting to crawl metadata for address: {address}")
 
                 already_parsed = get_current_metadata_for_address(
-                db_session=db_session, blockchain_type=blockchain_type, address=address
+                    db_session=db_session_read_only,
+                    blockchain_type=blockchain_type,
+                    address=address,
                 )
 
                 maybe_updated = get_tokens_wich_maybe_updated(
-                db_session=db_session, blockchain_type=blockchain_type, address=address
+                    db_session=db_session_read_only,
+                    blockchain_type=blockchain_type,
+                    address=address,
                 )
                 leak_rate = 0.0
 

crawlers/mooncrawl/mooncrawl/metadata_crawler/db.py

@@ -244,9 +244,9 @@ def clean_labels_from_db(
         WHERE
             label=:label
             AND address=:address
-            AND polygon_labels.id  not in (select id from lates_token_metadata) RETURNING polygon_labels.block_number;
+            AND {}.id  not in (select id from lates_token_metadata) RETURNING {}.block_number;
     """.format(
-            table, table
+            table, table, table, table
         ),
         {"address": address, "label": METADATA_CRAWLER_LABEL},
     )