def index():
db=get_db()
posts = db.execute(
'SELECT p.id, title, body, created, author_id, username'
' FROM post p JOIN user u ON p.author_id = u.id'
' ORDER BY created DESC'
).fetchall()
return render_template('blog/index.html', posts=posts)
def load_logged_in_user():
user_id = session.get('user_id')
if user_id is None:
g.user = None
else:
g.user = get_db().execute('SELECT * FROM user WHERE id = ?',
(user_id, )).fetchone()
def delete(id):
post=get_post(id)
db = get_db()
db.execute(
'DELETE FROM post WHERE id = ?',
(id,)
)
db.commit()
return redirect(url_for('blog.index'))
def get_post(id,check_auther=True):
post = get_db().execute(
'SELECT p.id, title, body, created, author_id, username'
' FROM post p JOIN user u ON p.author_id = u.id'
' WHERE p.id = ?',
(id,)
).fetchone()
if post is None:
abort(404, "Post id {0} doen't exist ".format(id))
if check_auther and post['author_id']!= g.user['id']:
abort(403)
return post
def create():
if request.method == 'POST':
title=request.form['title']
body=request.form['body']
error = None
if not title:
error = "Please give a name to your post"
if error is not None:
flash(error)
else:
db= get_db()
db.execute(
'INSERT INTO post (title,body,author_id)'
'VALUES(?,?,?)',(title,body,g.user['id'])
)
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/create.html')
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
error = None
db = get_db()
user = db.execute('SELECT * FROM user WHERE username = ?',
(username, )).fetchone()
if user is None:
error = "Incorrect username"
elif not check_password_hash(user['password'], password):
error = "Password is incorrect"
if error is None:
session.clear()
session['user_id'] = user['id']
return redirect(url_for('index'))
flash(error)
return render_template('auth/login.html')
def update(id):
post = get_post(id)
if request.method== 'POST':
title = request.form['title']
body = request.form['body']
error = None
if not title :
error = 'Title is Required'
if error is not None:
flash(error)
else:
db= get_db()
db.execute(
'UPDATE post SET title =?, body =?'
' WHERE id = ?',
(title,body,id)
)
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/update.html', post=post)
def register():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
userExistError = db.execute('SELECT id from user WHERE username = ?',
(username, )).fetchone()
if not username:
error = "Username is required"
elif not password:
error = "Password is reuired"
elif userExistError is not None:
error = "User {} is already registered ".format(username)
if error is None:
db.execute('INSERT INTO user (username, password) VALUES (?,?)',
(username, generate_password_hash(password)))
db.commit()
return redirect(url_for('auth.login'))
flash(error)
return render_template('auth/register.html')