app.py

app.py

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+import sqlite3
+import gradio as gr
+
+# Connect to SQLite database (or create it)
+conn = sqlite3.connect("users.db", check_same_thread=False)
+cursor = conn.cursor()
+
+# Create table if not exists
+cursor.execute('''
+CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    email TEXT NOT NULL UNIQUE
+)
+''')
+conn.commit()
+
+# CRUD functions
+
+def create_user(name, email):
+    try:
+        cursor.execute("INSERT INTO users (name, email) VALUES (?, ?)", (name, email))
+        conn.commit()
+        return "User created successfully!"
+    except sqlite3.IntegrityError:
+        return "Email already exists."
+
+def read_users():
+    cursor.execute("SELECT * FROM users")
+    rows = cursor.fetchall()
+    if not rows:
+        return "No users found."
+    result = ""
+    for row in rows:
+        result += f"ID: {row[0]}, Name: {row[1]}, Email: {row[2]}\n"
+    return result
+
+def update_user(user_id, name, email):
+    cursor.execute("SELECT * FROM users WHERE id = ?", (user_id,))
+    if cursor.fetchone() is None:
+        return "User ID not found."
+    try:
+        cursor.execute("UPDATE users SET name = ?, email = ? WHERE id = ?", (name, email, user_id))
+        conn.commit()
+        return "User updated successfully!"
+    except sqlite3.IntegrityError:
+        return "Email already exists."
+
+def delete_user(user_id):
+    cursor.execute("SELECT * FROM users WHERE id = ?", (user_id,))
+    if cursor.fetchone() is None:
+        return "User ID not found."
+    cursor.execute("DELETE FROM users WHERE id = ?", (user_id,))
+    conn.commit()
+    return "User deleted successfully!"
+
+# Gradio interface
+
+with gr.Blocks() as demo:
+    gr.Markdown("# Simple SQLite3 CRUD with Gradio")
+
+    with gr.Tab("Create User"):
+        name_in = gr.Textbox(label="Name")
+        email_in = gr.Textbox(label="Email")
+        create_btn = gr.Button("Create User")
+        create_out = gr.Textbox(label="Output")
+        create_btn.click(create_user, inputs=[name_in, email_in], outputs=create_out)
+
+    with gr.Tab("Read Users"):
+        read_btn = gr.Button("Show All Users")
+        read_out = gr.Textbox(label="Users", lines=10)
+        read_btn.click(read_users, outputs=read_out)
+
+    with gr.Tab("Update User"):
+        update_id = gr.Number(label="User ID")
+        update_name = gr.Textbox(label="New Name")
+        update_email = gr.Textbox(label="New Email")
+        update_btn = gr.Button("Update User")
+        update_out = gr.Textbox(label="Output")
+        update_btn.click(update_user, inputs=[update_id, update_name, update_email], outputs=update_out)
+
+    with gr.Tab("Delete User"):
+        delete_id = gr.Number(label="User ID")
+        delete_btn = gr.Button("Delete User")
+        delete_out = gr.Textbox(label="Output")
+        delete_btn.click(delete_user, inputs=delete_id, outputs=delete_out)
+
+demo.launch(debug=True)