Add SeaLion model

models/sealion.py

@@ -0,0 +1,32 @@
+from sqlalchemy import Column, String, Integer, Float, DateTime
+from sqlalchemy.sql import func
+from app.api.db.base_class import Base
+import uuid
+
+class SeaLion(Base):
+    __tablename__ = "sea_lions"
+
+    id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
+    name = Column(String, nullable=False)
+    species = Column(String, nullable=False)
+    age = Column(Integer)
+    weight = Column(Float)
+    location = Column(String, index=True)
+
+    # Timestamps
+    created_at = Column(DateTime, default=func.now())
+    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())
+```
+
+This SQLAlchemy model defines a `SeaLion` class that extends the `Base` class. It includes the following columns:
+
+- `id`: A primary key column of type `String` that uses a UUID as the default value.
+- `name`: A required `String` column for the sea lion's name.
+- `species`: A required `String` column for the sea lion's species.
+- `age`: An optional `Integer` column for the sea lion's age.
+- `weight`: An optional `Float` column for the sea lion's weight.
+- `location`: A `String` column for the sea lion's location, indexed for faster queries.
+- `created_at`: A `DateTime` column that stores the record's creation timestamp, with a default value of the current time.
+- `updated_at`: A `DateTime` column that stores the record's last update timestamp, with a default value of the current time and an `onupdate` trigger to update the value on each record modification.
+
+This model can be used with FastAPI and Alembic migrations to manage sea lion data in a database.