added dedup tools to settings. first pass of mass tag editting to gallery view.

app/__init__.py

@@ -6,9 +6,6 @@ from flask.cli import with_appcontext
 from flask_sqlalchemy import SQLAlchemy
 from flask_migrate import Migrate
 from werkzeug.middleware.proxy_fix import ProxyFix
-from sqlalchemy import event
-from sqlalchemy.engine import Engine
-import sqlite3
 
 db = SQLAlchemy()
 migrate = Migrate()
@@ -56,14 +53,6 @@ def celery_beat_command():
         '--loglevel=info'
     ])
 
-@event.listens_for(Engine, "connect")
-def set_sqlite_pragma(dbapi_connection, connection_record):
-    # Only apply to SQLite connections
-    if isinstance(dbapi_connection, sqlite3.Connection):
-        cursor = dbapi_connection.cursor()
-        cursor.execute("PRAGMA foreign_keys = ON")
-        cursor.close()
-
 def create_app(config_class='config.Config'):
     app = Flask(__name__)
     app.config.from_object(config_class)