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Diffstat (limited to 'gn3')
-rw-r--r--gn3/db_utils.py18
1 files changed, 12 insertions, 6 deletions
diff --git a/gn3/db_utils.py b/gn3/db_utils.py
index 862d76c..4827358 100644
--- a/gn3/db_utils.py
+++ b/gn3/db_utils.py
@@ -7,20 +7,21 @@ import xapian
 from flask import current_app
 
 
-def parse_db_url() -> Tuple:
+def parse_db_url(sql_uri: str) -> Tuple:
     """function to parse SQL_URI env variable note:there\
     is a default value for SQL_URI so a tuple result is\
     always expected"""
-    parsed_db = urlparse(current_app.config["SQL_URI"])
+    parsed_db = urlparse(sql_uri)
     return (
         parsed_db.hostname, parsed_db.username, parsed_db.password,
         parsed_db.path[1:], parsed_db.port)
 
 
 # This function is deprecated. Use database_connection instead.
-def database_connector() -> mdb.Connection:
+def database_connector(sql_uri: str = "") -> mdb.Connection:
     """function to create db connector"""
-    host, user, passwd, db_name, db_port = parse_db_url()
+    host, user, passwd, db_name, db_port = parse_db_url(
+        sql_uri or current_app.config["SQL_URI"])
 
     return mdb.connect(host, user, passwd, db_name, port=(db_port or 3306))
 
@@ -33,10 +34,15 @@ class Connection(Protocol):
         ...
 
 
+## We need to decouple current_app from this module and function, but since this
+## function is used throughout the code, that will require careful work to update
+## all the code to pass the `sql_uri` argument, and make it a compulsory argument
+## rather than its current optional state.
 @contextlib.contextmanager
-def database_connection() -> Iterator[Connection]:
+def database_connection(sql_uri: str = "") -> Iterator[Connection]:
     """Connect to MySQL database."""
-    host, user, passwd, db_name, port = parse_db_url()
+    host, user, passwd, db_name, port = parse_db_url(
+        sql_uri or current_app.config["SQL_URI"])
     connection = mdb.connect(db=db_name,
                              user=user,
                              passwd=passwd or '',