Import MetaData and add naming convention

data/database.py

@@ -8,14 +8,30 @@ import os
 
 from dotenv import load_dotenv
 
-from sqlalchemy import create_engine, Date, Integer, String
+from sqlalchemy import create_engine, Date, Integer, MetaData, String
 from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column, sessionmaker
 
 
 load_dotenv()
 
+"""
+    Databse naming conventions.
+    ix == index
+    uq == unique constraint
+    ck == check constraint
+    fk == foreign key
+    pk == primary key
+"""
+DATABASE_NAMING_CONVENTION = {
+    "ix": "ix_%(table)s_%(column_0_label)s",
+    "uq": "uq_%(table)s_%(column_0_label)s",
+    "ck": "ck_%(table)s_%(column_0_label)s",
+    "fk": "fk_%(table)s_%(column_0_label)s",
+    "pk": "pk_%(table)s_%(column_0_label)s",
+}
+
 class Base(DeclarativeBase):
-    pass
+    metadata = MetaData(naming_convention=DATABASE_NAMING_CONVENTION)
 
 
 class DataAccessLayer: