Modified startup logic, added user dump

fp3_1.py

@@ -1,5 +1,6 @@
+import sqlalchemy
 from sqlalchemy import create_engine, Column, Integer, String, ForeignKey, Float, DateTime
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import declarative_base
 from sqlalchemy.orm import relationship, sessionmaker
 import sys
 from flask import Flask, render_template
@@ -69,6 +70,8 @@ class User(Base):
     credentials = Column(String)
     creation_date = Column(DateTime)
     modification_date = Column(DateTime)
+    def __str__(self):
+        return f"{self.id=} {self.username=} {self.creation_date=} {self.modification_date=}"
 
 class RetailerProduct(Base):
     __tablename__ = 'retailer_product'
@@ -78,11 +81,24 @@ class RetailerProduct(Base):
 # Create the database tables
 Base.metadata.create_all(engine)
 
+@app.route('/')
+def homepage():
+    # Create a session
+    session = Session()
+
+    # Get all the classes from SQLAlchemy
+    classes = Base.__subclasses__()
+
+    statement = sqlalchemy.select(User)
+    users = session.scalars(statement).all()
+
+    # Render the template with the classes
+    return render_template('test3.html', classes=classes, users=users)
+
 # Create command-line arguments for the user class
 def main():
     if len(sys.argv) < 2:
-        print("Usage: python user_tool.py [create|edit|delete]")
-        return
+        app.run()
 
     command = sys.argv[1]
 
@@ -143,21 +159,8 @@ def main():
             print("User not found.")
 
     else:
-        print("Invalid command.")
+        print("Usage: python user_tool.py [create|edit|delete]")
+        return
 
 if __name__ == "__main__":
-    main()
-
-@app.route('/')
-def homepage():
-    # Create a session
-    session = Session()
-
-    # Get all the classes from SQLAlchemy
-    classes = Base.__subclasses__()
-
-    # Render the template with the classes
-    return render_template('test3.html', classes=classes)
-
-if __name__ == '__main__':
-    app.run()
+    main()

templates/test3.html

@@ -10,5 +10,12 @@
         <li>{{ class.__name__ }}</li>
         {% endfor %}
     </ul>
+
+    <h1>User Dump</h1>
+    <ul>
+        {% for user in users %}
+        <li>{{ user }}</li>
+        {% endfor %}
+    </ul>
 </body>
 </html>