added documentation to the Sources schema

rag_app/database/schema.py

@@ -1,9 +1,20 @@
 from sqlmodel import SQLModel, Field
 from typing import Optional
-
 import datetime
 
 class Sources(SQLModel, table=True):
+    """
+    Database schema for the Sources table.
+    
+    Attributes:
+        id (Optional[int]): The primary key for the table.
+        url (str): The URL of the source.
+        title (Optional[str]): The title of the source.
+        hash_id (str): A unique identifier for the source.
+        created_at (float): Timestamp indicating when the entry was created.
+        summary (str): A summary of the source content.
+        embedded (bool): Flag indicating whether the source is embedded.
+    """
     id: Optional[int] = Field(default=None, primary_key=True)
     url: str = Field()
     title: Optional[str] = Field(default="NA", unique=False)
@@ -12,4 +23,4 @@ class Sources(SQLModel, table=True):
     summary: str = Field(default="")
     embedded: bool = Field(default=False)
 
-    __table_args__ = {"extend_existing": True}
+    __table_args__ = {"extend_existing": True}