def get_post(id, check_author=True):
get_db().cursor.execute(
'SELECT p.postid, subject, body, postdate, creatorid, username'
' FROM posts p JOIN users u ON p.creatorid = u.userid'
' WHERE p.postid = %s', (id, ))
post = get_db().cursor.fetchone()
if post is None:
abort(404, "Post id {0} doesn't exist.".format(id))
if check_author and post[4] != g.userid:
abort(403)
return post
def delete(id):
get_post(id)
db = get_db()
db.cursor.execute('DELETE FROM posts WHERE postid = %s', (id, ))
db.commit()
return redirect(url_for('blog.index'))
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
db.cursor.execute(
'SELECT * from Users WHERE username = %s', (username,)
)
user = db.cursor.fetchone()
# verify password
if user is None:
error = 'Username does not exist.'
elif not check_password_hash(user[2], password):
error = 'You entered an incorrect password.'
if error is None:
# store the user id in a new session and return to homepage
session.clear()
session['user_id'] = user[0]
return redirect(url_for('index'))
flash(error)
return render_template('auth/login.html')
def register():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
firstName = request.form['firstName']
lastName = request.form['lastName']
db = get_db()
error = None
if not username:
error = 'Username is required.'
elif not password:
error = 'Password is required.'
db.cursor.execute(
'SELECT userID from Users WHERE username = %s', (username,)
)
if db.cursor.fetchone() is not None:
error = 'User {0} is already registered.'.format(username)
# redirect to login page after done executing
# saves registered username and hashed pw to db
if error is None:
db.cursor.execute(
'INSERT INTO Users (username, pass, firstName, lastName) VALUES (%s, %s, %s, %s)',
(username, generate_password_hash(password), firstName, lastName)
)
db.commit()
return redirect(url_for('auth.login'))
flash(error)
return render_template('auth/register.html')
def index():
db = get_db()
db.cursor.execute(
'SELECT p.postid, subject, body, postdate, creatorid, username'
' FROM posts p JOIN users u ON p.creatorid = u.userid'
' ORDER BY postdate DESC')
p = db.cursor.fetchall()
return render_template('blog/index.html', posts=p)
def search(searchstring=""):
s = searchstring
if not s:
s = ""
db = get_db()
db.cursor.execute(
'SELECT p.postid, subject, body, postdate, creatorid, username'
' FROM posts p JOIN users u ON p.creatorid = u.userid'
' WHERE body LIKE %s'
' OR subject LIKE %s'
' ORDER BY postdate DESC', (
'%' + s + '%',
'%' + s + '%',
))
p = db.cursor.fetchall()
return render_template('blog/search.html', posts=p)
def create():
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.cursor.execute(
'INSERT INTO posts (subject, body, creatorid)'
' VALUES (%s, %s, %s)', (title, body, g.userid))
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/create.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.cursor.execute(
'UPDATE posts SET subject = %s, body = %s WHERE postid = %s',
(title, body, id))
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/update.html', post=post)
def load_logged_in_user():
user_id = session.get('user_id')
if user_id is None:
g.userid = None
else:
get_db().cursor.execute(
'SELECT * from Users WHERE userID = %s', (user_id,)
)
u = get_db().cursor.fetchone()
if(u):
g.userid = u[0]
g.username = u[1]
g.firstname = u[3]
g.filter = ""
get_db().cursor.execute(
'SELECT * from access_types WHERE userID = %s', (user_id,)
)
a = get_db().cursor.fetchone()
if(a):
g.userisadmin = True
