From 0eec7b0d7a58a8bcf90cbbbe0f4ffe17593eb8c5 Mon Sep 17 00:00:00 2001
From: Mohammad Rameen <qwerty@dummy.com>
Date: Sun, 14 Sep 2025 10:57:37 +0530
Subject: [PATCH] Added final project

---
 .../day-63-library-project-end/.DS_Store      | Bin 0 -> 6148 bytes
 .../instance/books.db                         | Bin 0 -> 12288 bytes
 .../day-63-library-project-end/main.py        | 102 ++++++++++++++++++
 .../requirements.txt                          |   3 +
 .../templates/add.html                        |  18 ++++
 .../templates/edit_rating.html                |  16 +++
 .../templates/index.html                      |  23 ++++
 7 files changed, 162 insertions(+)
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/.DS_Store
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/instance/books.db
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/main.py
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/requirements.txt
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/templates/add.html
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/templates/edit_rating.html
 create mode 100644 Visual Studio Code Projects/day-63-library-project-end/templates/index.html

diff --git a/Visual Studio Code Projects/day-63-library-project-end/.DS_Store b/Visual Studio Code Projects/day-63-library-project-end/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..a9580684b71a1a79fb179156dee4147d0678830b
GIT binary patch
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diff --git a/Visual Studio Code Projects/day-63-library-project-end/instance/books.db b/Visual Studio Code Projects/day-63-library-project-end/instance/books.db
new file mode 100644
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GIT binary patch
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HcmV?d00001

diff --git a/Visual Studio Code Projects/day-63-library-project-end/main.py b/Visual Studio Code Projects/day-63-library-project-end/main.py
new file mode 100644
index 0000000..04509cb
--- /dev/null
+++ b/Visual Studio Code Projects/day-63-library-project-end/main.py	
@@ -0,0 +1,102 @@
+from flask import Flask, render_template, request, redirect, url_for
+from flask_sqlalchemy import SQLAlchemy
+from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
+from sqlalchemy import Integer, String, Float
+
+'''
+Red underlines? Install the required packages first: 
+Open the Terminal in PyCharm (bottom left). 
+
+On Windows type:
+python -m pip install -r requirements.txt
+
+On MacOS type:
+pip3 install -r requirements.txt
+
+This will install the packages from requirements.txt for this project.
+'''
+
+app = Flask(__name__)
+
+# CREATE DATABASE
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+app.config['SQLALCHEMY_DATABASE_URI'] = "sqlite:///books.db"
+# Create the extension
+db = SQLAlchemy(model_class=Base)
+# initialise the app with the extension
+db.init_app(app)
+
+
+# CREATE TABLE
+class Book(db.Model):
+    id: Mapped[int] = mapped_column(Integer, primary_key=True)
+    title: Mapped[str] = mapped_column(
+        String(250), unique=True, nullable=False)
+    author: Mapped[str] = mapped_column(String(250), nullable=False)
+    rating: Mapped[float] = mapped_column(Float, nullable=False)
+
+
+# Create table schema in the database. Requires application context.
+with app.app_context():
+    db.create_all()
+
+
+@app.route('/')
+def home():
+    # READ ALL RECORDS
+    # Construct a query to select from the database. Returns the rows in the database
+    result = db.session.execute(db.select(Book).order_by(Book.title))
+    # Use .scalars() to get the elements rather than entire rows from the database
+    all_books = result.scalars().all()
+    return render_template("index.html", books=all_books)
+
+
+@app.route("/add", methods=["GET", "POST"])
+def add():
+    if request.method == "POST":
+        # CREATE RECORD
+        new_book = Book(
+            title=request.form["title"],
+            author=request.form["author"],
+            rating=request.form["rating"]
+        )
+        db.session.add(new_book)
+        db.session.commit()
+        return redirect(url_for('home'))
+    return render_template("add.html")
+
+
+@app.route("/edit", methods=["GET", "POST"])
+def edit():
+    if request.method == "POST":
+        # UPDATE RECORD
+        book_id = request.form["id"]
+        book_to_update = db.get_or_404(Book, book_id)
+        book_to_update.rating = request.form["rating"]
+        db.session.commit()
+        return redirect(url_for('home'))
+    book_id = request.args.get('id')
+    book_selected = db.get_or_404(Book, book_id)
+    return render_template("edit_rating.html", book=book_selected)
+
+
+@app.route("/delete")
+def delete():
+    book_id = request.args.get('id')
+
+    # DELETE A RECORD BY ID
+    book_to_delete = db.get_or_404(Book, book_id)
+    # Alternative way to select the book to delete.
+    # book_to_delete = db.session.execute(db.select(Book).where(Book.id == book_id)).scalar()
+    db.session.delete(book_to_delete)
+    db.session.commit()
+    return redirect(url_for('home'))
+
+
+if __name__ == "__main__":
+    app.run(debug=True)
diff --git a/Visual Studio Code Projects/day-63-library-project-end/requirements.txt b/Visual Studio Code Projects/day-63-library-project-end/requirements.txt
new file mode 100644
index 0000000..fd97d61
--- /dev/null
+++ b/Visual Studio Code Projects/day-63-library-project-end/requirements.txt	
@@ -0,0 +1,3 @@
+Flask==3.0.0
+flask_sqlalchemy==3.1.1
+SQLAlchemy==2.0.25
\ No newline at end of file
diff --git a/Visual Studio Code Projects/day-63-library-project-end/templates/add.html b/Visual Studio Code Projects/day-63-library-project-end/templates/add.html
new file mode 100644
index 0000000..d013934
--- /dev/null
+++ b/Visual Studio Code Projects/day-63-library-project-end/templates/add.html	
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Add Book</title>
+  </head>
+  <body>
+    <form action="{{ url_for('add') }}" method="POST">
+      <label>Book Name</label>
+      <input name="title" type="text" />
+      <label>Book Author</label>
+      <input name="author" type="text" />
+      <label>Rating</label>
+      <input name="rating" type="text" />
+      <button type="submit">Add Book</button>
+    </form>
+  </body>
+</html>
diff --git a/Visual Studio Code Projects/day-63-library-project-end/templates/edit_rating.html b/Visual Studio Code Projects/day-63-library-project-end/templates/edit_rating.html
new file mode 100644
index 0000000..d074419
--- /dev/null
+++ b/Visual Studio Code Projects/day-63-library-project-end/templates/edit_rating.html	
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Edit Rating</title>
+  </head>
+  <body>
+    <form action="{{ url_for('edit') }}" method="POST">
+      <p>Book Name: {{book.title}}</p>
+      <p>Current Rating {{book.rating}}</p>
+      <input hidden="hidden" name="id" value="{{book.id}}" />
+      <input name="rating" type="text" placeholder="New Rating" />
+      <button type="submit">Change Rating</button>
+    </form>
+  </body>
+</html>
diff --git a/Visual Studio Code Projects/day-63-library-project-end/templates/index.html b/Visual Studio Code Projects/day-63-library-project-end/templates/index.html
new file mode 100644
index 0000000..1342135
--- /dev/null
+++ b/Visual Studio Code Projects/day-63-library-project-end/templates/index.html	
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Library</title>
+  </head>
+  <body>
+    <h1>My Library</h1>
+    {% if books == []: %}
+    <p>Library is empty.</p>
+    {% endif %}
+    <ul>
+      {% for book in books %}
+      <li>
+        <a href="{{ url_for('delete', id=book.id) }}">Delete</a>
+        {{book.title}} - {{book.author}} - {{book.rating}}/10
+        <a href="{{ url_for('edit', id=book.id) }}">Edit Rating</a>
+      </li>
+      {% endfor %}
+    </ul>
+    <a href="{{ url_for('add') }}">Add New Book</a>
+  </body>
+</html>