module retro

Pipfile

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+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+
+[requires]
+python_version = "3.6"

module1-web-application-development-with-flask/.gitignore

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+migrations/
+
+test_db.db

module1-web-application-development-with-flask/Pipfile

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+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+flask = "*"
+flask-sqlalchemy = "*"
+flask-migrate = "*"
+
+[requires]
+python_version = "3.6"

module1-web-application-development-with-flask/web_app/__init__.py

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+from flask import Flask
+
+from web_app.routes.home_routes import home_routes
+from web_app.routes.book_routes import book_routes
+from web_app.routes.user_routes import user_routes
+from web_app.models import db, migrate
+
+
+DATABASE_URI = "sqlite:///test_db.db"
+
+
+def create_app():
+    app = Flask(__name__)
+
+    app.config["SQLALCHEMY_DATABASE_URI"] = DATABASE_URI
+    db.init_app(app)
+    migrate.init_app(app, db)
+
+    app.register_blueprint(home_routes)
+    app.register_blueprint(book_routes)
+    app.register_blueprint(user_routes)
+    return app
+
+
+if __name__ == "__main__":
+    my_app = create_app()
+    my_app.run(debug=True)

module1-web-application-development-with-flask/web_app/models.py

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+
+
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+
+
+db = SQLAlchemy()
+
+migrate = Migrate()
+
+
+class Book(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(128))
+    author_id = db.Column(db.String(128))
+
+
+class User(db.Model):
+    # __table_name__ = "user"
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(128))
+
+
+class Tweet(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    user_id = db.Column(db.Integer, db.ForeignKey("user.id"))
+    text = db.Column(db.String(500))

module1-web-application-development-with-flask/web_app/routes/book_routes.py

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+
+from flask import Blueprint, jsonify, request, render_template, redirect, flash
+from pdb import set_trace as st
+from web_app.models import Book, db
+
+book_routes = Blueprint("book_routes", __name__)
+
+
+@book_routes.route("/books.json")
+def list_books_json():
+    book_records = Book.query.all()
+    return jsonify(book_records)
+
+
+@book_routes.route("/books")
+def list_books():
+    book_records = Book.query.all()
+    return render_template("books.html", message="Here's some books", books=book_records)
+
+
+@book_routes.route("/books/new")
+def new_book():
+    return render_template("new_book.html")
+
+
+@book_routes.route("/books/create", methods=["POST"])
+def create_book():
+    print("FORM DATA:", dict(request.form))
+    new_book = Book(title=request.form["book_title"], author_id=request.form["author_name"])
+
+    db.session.add(new_book)
+    db.session.commit()
+    return redirect(f"/books")

module1-web-application-development-with-flask/web_app/routes/home_routes.py

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+from flask import Blueprint
+
+home_routes = Blueprint("home_routes", __name__)
+
+
+@home_routes.route("/")
+def index():
+    x = 2 + 2
+    return f"Hello World {x}"
+
+
+@home_routes.route("/about")
+def about():
+    return "about me"

module1-web-application-development-with-flask/web_app/routes/user_routes.py

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+
+from flask import Blueprint, jsonify, request, render_template, redirect, flash
+from pdb import set_trace as st
+from web_app.models import Tweet, User, db
+from sqlalchemy.orm import joinedload
+
+
+user_routes = Blueprint("user_routes", __name__)
+
+
+@user_routes.route("/users/")
+def list_users():
+    user_records = User.query.all()
+    return render_template("users.html", users=user_records)
+
+
+@user_routes.route("/users/<username>/")
+def list_user_tweets(username=None):
+    user = User.query.filter_by(username=username).first()
+    user_id = user.id
+    user_tweets = Tweet.query.filter_by(user_id=user_id).all()
+    # st()
+    return render_template("user_tweets.html", username=username, user_tweets=user_tweets)
+
+
+@user_routes.route("/users/<username>/new_tweet", methods=["POST"])
+def user_create_new_tweet(username=None):
+    user = User.query.filter_by(username=username).first()
+    # st()
+    user_id = user.id
+    new_tweet = Tweet(user_id=user_id, text=request.form["tweet_text"])
+    db.session.add(new_tweet)
+    db.session.commit()
+    return redirect(f"/users/{username}/")
+
+
+@user_routes.route("/users/new/")
+def new_user():
+    return render_template("new_user.html")
+
+
+@user_routes.route("/users/create", methods=["POST"])
+def create_user():
+    new_user = User(username=request.form["username"])
+    print("FORM DATA:", dict(request.form))
+    db.session.add(new_user)
+    db.session.commit()
+    # flash("asdf")
+    return redirect("/users")

module1-web-application-development-with-flask/web_app/templates/books.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+
+    {% if books %}
+    <ul>
+        {% for book in books %}
+        <p>
+            <li>{{ book.title }}</li>
+        </p>
+        {% endfor %}
+    </ul>
+    {% else %}
+        <p>no books!</p>
+    {% endif %}
+
+
+</body>
+</html>