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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, abort
from flask_bootstrap import Bootstrap
from flask_ckeditor import CKEditor
from datetime import date
from functools import wraps
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 LoginForm, RegisterForm, CreatePostForm, CommentForm
from flask_gravatar import Gravatar
import os
app = Flask(__name__)
app.config['SECRET_KEY'] = os.environ.get("SECRET_KEY")
ckeditor = CKEditor(app)
Bootstrap(app)
##CONNECT TO DB
app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get("DATABASE_URL", "sqlite:https:///blog.db")
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
login_manager = LoginManager()
login_manager.init_app(app)
gravatar = Gravatar(app, size=100, rating='g', default='retro', force_default=False, force_lower=False, use_ssl=False, base_url=None)
@login_manager.user_loader
def load_user(user_id):
return User.query.get(int(user_id))
def admin_only(f):
@wraps(f)
def decorated_function(*args,**kwargs):
if current_user.get_id()!="1":
return abort(403)
return f(*args, **kwargs)
return decorated_function
##CONFIGURE TABLES
class User(UserMixin, db.Model):
__tablename__ = "users"
id = db.Column(db.Integer, primary_key=True)
email = db.Column(db.String(100), unique=True)
password = db.Column(db.String(100))
name = db.Column(db.String(100))
posts = relationship("BlogPost", back_populates="author")
comments = relationship("Comment", back_populates="comment_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")
comments = relationship("Comment", back_populates='parent_post')
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)
class Comment(db.Model):
__tablename__ ='comments'
id = db.Column(db.Integer, primary_key=True)
text = db.Column(db.Text, nullable=False)
author_id = db.Column(db.Integer, db.ForeignKey("users.id"))
comment_author = relationship("User", back_populates="comments")
post_id = db.Column(db.Integer, db.ForeignKey("blog_posts.id"))
parent_post = relationship('BlogPost', back_populates='comments')
db.create_all()
@app.route('/')
def get_all_posts():
posts = BlogPost.query.all()
return render_template("index.html", all_posts=posts, logged_in=current_user.is_authenticated, id=current_user.get_id())
@app.route('/register', methods=['POST','GET'])
def register():
register_form = RegisterForm()
if register_form.validate_on_submit():
if User.query.filter_by(email=register_form.email.data).first():
flash("You've already signed up with that email, log in instead.")
return redirect(url_for('login'))
hashed_password = generate_password_hash(register_form.password.data, method='pbkdf2:sha256', salt_length=8)
new_user = User(email=register_form.email.data,password=hashed_password,name=register_form.name.data)
db.session.add(new_user)
db.session.commit()
login_user(new_user)
return redirect(url_for('get_all_posts'))
return render_template("register.html", form=register_form, logged_in=current_user.is_authenticated)
@app.route('/login', methods=['POST','GET'])
def login():
form = LoginForm()
if form.validate_on_submit():
password = form.password.data
user = User.query.filter_by(email=form.email.data).first()
if user:
if check_password_hash(user.password, password):
login_user(user)
return redirect(url_for('get_all_posts'))
else:
flash('Password incorrect ,please try again')
return redirect(url_for('login'))
else:
flash("Email that you enter does not exist.")
return redirect(url_for('login'))
return render_template("login.html", form=form, logged_in=current_user.is_authenticated)
@app.route('/logout')
def logout():
logout_user()
return redirect(url_for('get_all_posts'))
@app.route("/post/<int:post_id>", methods=['POST','GET'])
def show_post(post_id):
form = CommentForm()
requested_post = BlogPost.query.get(post_id)
if form.validate_on_submit():
if current_user.is_authenticated:
new_comment = Comment(
text=form.comment.data,
comment_author=current_user,
parent_post=requested_post
)
db.session.add(new_comment)
db.session.commit()
else:
flash("You need to log in")
return redirect(url_for('login'))
return render_template("post.html", post=requested_post, logged_in=current_user.is_authenticated, id=current_user.get_id(), form=form)
@app.route("/about")
def about():
return render_template("about.html", logged_in=current_user.is_authenticated)
@app.route("/contact")
def contact():
return render_template("contact.html", logged_in=current_user.is_authenticated)
@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, logged_in=current_user.is_authenticated)
@app.route("/edit-post/<int:post_id>", methods=['POST','GET'])
@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.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, logged_in=current_user.is_authenticated)
@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(port=5000)