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main.py
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main.py
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from flask import Flask, render_template, redirect, url_for, flash, request, abort
from flask_bootstrap import Bootstrap
from flask_ckeditor import CKEditor
from datetime import date
from werkzeug.security import generate_password_hash, check_password_hash
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy.orm import relationship
from flask_login import UserMixin, login_user, LoginManager, login_required, current_user, logout_user
from forms import CreatePostForm, RegisterForm, LoginForm, CommentForm
from flask_gravatar import Gravatar
import smtplib
import os
from functools import wraps
EMAIL = os.getenv("EMAIL")
PASSWORD = os.getenv("PASSWORD")
app = Flask(__name__)
app.config['SECRET_KEY'] = os.getenv("SECRET_KEY")
ckeditor = CKEditor(app)
Bootstrap(app)
# # CONNECT TO DB
app.config['SQLALCHEMY_DATABASE_URI'] = os.getenv("DATABASE_URL", "sqlite:///blog.db")
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
login_manager = LoginManager()
login_manager.init_app(app)
@login_manager.user_loader
def load_user(user_id):
return User.query.get(int(user_id))
# # CONFIGURE TABLES
class User(UserMixin, db.Model):
__tablename__ = "users"
id = db.Column(db.Integer, primary_key=True)
email = db.Column(db.String(50), unique=True, nullable=False)
hashed_password = db.Column(db.String(250), nullable=False)
name = db.Column(db.String(50), nullable=False)
posts = relationship("BlogPost", back_populates="author")
comments = relationship("Comment", back_populates="author")
class BlogPost(db.Model):
__tablename__ = "blog_posts"
id = db.Column(db.Integer, primary_key=True)
author_id = db.Column(db.Integer, db.ForeignKey("users.id"))
author = relationship("User", back_populates="posts")
title = db.Column(db.String(250), unique=True, nullable=False)
subtitle = db.Column(db.String(250), nullable=False)
date = db.Column(db.String(250), nullable=False)
body = db.Column(db.Text, nullable=False)
img_url = db.Column(db.String(250), nullable=False)
comments = relationship("Comment", back_populates="parent_post")
class Comment(db.Model):
__tablename__ = "comments"
id = db.Column(db.Integer, primary_key=True)
author_id = db.Column(db.Integer, db.ForeignKey("users.id"))
author = relationship("User", back_populates="comments")
post_id = db.Column(db.Integer, db.ForeignKey("blog_posts.id"))
parent_post = relationship("BlogPost", back_populates="comments")
text = db.Column(db.String(500), nullable=False)
with app.app_context():
db.create_all()
gravatar = Gravatar(app, size=80, rating='g', default='retro', force_default=False, force_lower=False,
use_ssl=False, base_url=None)
# admin only decorator
def admin_only(f):
@wraps(f)
def decorated_function(*args, **kwargs):
try:
if current_user.id != 1:
return abort(403)
except AttributeError:
return redirect(url_for("get_all_posts"))
else:
return f(*args, **kwargs)
return decorated_function
@app.route('/')
def get_all_posts():
posts = BlogPost.query.all()
return render_template("index.html", all_posts=posts)
@app.route('/register', methods=["GET", "POST"])
def register():
form = RegisterForm()
if form.validate_on_submit():
user = User.query.filter(User.email == form.email.data).first()
if user:
flash("That email is already registered. Login instead.")
return redirect(url_for("login"))
hashed_pd = generate_password_hash(form.password.data)
new_user = User(
email=form.email.data,
hashed_password=hashed_pd,
name=form.name.data
)
db.session.add(new_user)
db.session.commit()
flash("Complete the registration. Please log in.")
return redirect(url_for("login"))
return render_template("register.html", form=form)
@app.route('/login', methods=["GET", "POST"])
def login():
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter(User.email == form.email.data).first()
if user is None:
flash("This email is not registered. Please try again.")
return redirect(url_for("login"))
elif not check_password_hash(user.hashed_password, form.password.data):
flash("Password is not correct. Please try again.")
return redirect(url_for("login"))
else:
login_user(user)
return redirect(url_for("get_all_posts"))
return render_template("login.html", form=form)
@app.route('/logout')
@login_required
def logout():
logout_user()
return redirect(url_for('get_all_posts'))
@app.route("/post/<int:post_id>", methods=["GET", "POST"])
def show_post(post_id):
requested_post = BlogPost.query.get(post_id)
form = CommentForm()
comments = Comment.query.filter(Comment.post_id == post_id).all()
if form.validate_on_submit():
if current_user.is_authenticated:
new_comment = Comment(
author_id=current_user.id,
post_id=post_id,
text=form.comment.data
)
db.session.add(new_comment)
db.session.commit()
return redirect(url_for("show_post", post_id=post_id))
else:
flash("You need to login or register to comment.")
return redirect(url_for("login"))
return render_template("post.html", post=requested_post, form=form, comments=comments, gravatar=gravatar)
@app.route("/about")
def about():
return render_template("about.html")
@app.route('/contact', methods=["GET", "POST"])
def contact():
if request.method == 'POST':
name = request.form["name"]
email = request.form["email"]
phone = request.form["phone"]
message = request.form["message"]
with smtplib.SMTP("smtp.gmail.com", port=587) as connection:
connection.starttls()
connection.login(user=EMAIL, password=PASSWORD)
connection.sendmail(
from_addr=EMAIL,
to_addrs=EMAIL,
msg=f"Subject:Blog Question!\n\n"
f"Name: {name}\n"
f"email: {email}\n"
f"Phone: {phone}\n"
f"Message: {message}".encode("utf-8")
)
return render_template("contact.html", msg_sent=True)
return render_template("contact.html", msg_sent=False)
@app.route("/new-post", methods=["GET", "POST"])
@admin_only
def add_new_post():
form = CreatePostForm()
if form.validate_on_submit():
new_post = BlogPost(
title=form.title.data,
subtitle=form.subtitle.data,
body=form.body.data,
img_url=form.img_url.data,
author=current_user,
date=date.today().strftime("%B %d, %Y")
)
db.session.add(new_post)
db.session.commit()
return redirect(url_for("get_all_posts"))
return render_template("make-post.html", form=form)
@app.route("/edit-post/<int:post_id>", methods=["GET", "POST"])
@admin_only
def edit_post(post_id):
post = BlogPost.query.get(post_id)
edit_form = CreatePostForm(
title=post.title,
subtitle=post.subtitle,
img_url=post.img_url,
body=post.body
)
if edit_form.validate_on_submit():
post.title = edit_form.title.data
post.subtitle = edit_form.subtitle.data
post.img_url = edit_form.img_url.data
post.author_id = current_user.id
post.body = edit_form.body.data
db.session.commit()
return redirect(url_for("show_post", post_id=post.id))
return render_template("make-post.html", form=edit_form)
@app.route("/delete/<int:post_id>")
@admin_only
def delete_post(post_id):
post_to_delete = BlogPost.query.get(post_id)
db.session.delete(post_to_delete)
db.session.commit()
return redirect(url_for('get_all_posts'))
if __name__ == "__main__":
app.run(host='0.0.0.0', port=5000)