def answer(id):
post = (get_db().execute(
"SELECT id, body FROM post"
" WHERE id = ?",
(id, ),
).fetchone())
if request.method == "POST":
comment = request.form["ans"]
error = None
if not comment:
error = "Answer is required."
if error is not None:
flash(error)
else:
db = get_db()
db.execute(
"INSERT INTO answer (comment, post_id, author_c) VALUES (?, ?, ?)",
(comment, id, g.user["id"]),
)
db.commit()
return redirect(url_for("blog.index"))
return render_template("blog/answer.html", post=post)
def register():
if request.method == "POST":
username = request.form["username"]
password = request.form["password"]
db = get_db()
error = None
if not username:
error = "Username is required."
elif not password:
error = "Password is required."
elif (db.execute("SELECT id FROM user WHERE username = ?",
(username, )).fetchone() is not None):
error = "User {0} 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")
def index():
db = get_db()
if request.method == "POST":
search = request.form["search"]
error = None
if not search:
error = "Title is required."
if error is not None:
flash(error)
posts = db.execute(
"SELECT p.id, title, body, tag, created, author_id, username"
" FROM post p JOIN user u ON p.author_id = u.id"
" WHERE p.title LIKE ?",
('%' + search + '%', ),
).fetchall()
if not posts:
posts = db.execute(
"SELECT p.id, title, body, tag, created, author_id, username"
" FROM post p JOIN user u ON p.author_id = u.id"
" WHERE p.tag LIKE ?",
('%' + search + '%', ),
).fetchall()
else:
posts = db.execute(
"SELECT p.id, title, body, tag, created, author_id, username"
" FROM post p JOIN user u ON p.author_id = u.id"
" ORDER BY created DESC").fetchall()
ans = db.execute("SELECT a.id, comment, time_added, post_id, author_c"
" FROM answer a JOIN post p ON a.post_id = p.id"
" ORDER BY created DESC").fetchall()
return render_template("blog/index.html", **locals())
def update(id):
post = get_post(id)
if request.method == "POST":
title = request.form["title"]
body = request.form["body"]
tag = request.form["tag"]
error = None
if not title:
error = "Title is required."
if not body:
error = "Description is required."
if error is not None:
flash(error)
else:
db = get_db()
db.execute(
"UPDATE post SET title = ?, body = ?, tag = ? WHERE id = ?",
(title, body, tag, 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.user = None
else:
g.user = (get_db().execute("SELECT * FROM user WHERE id = ?",
(user_id, )).fetchone())
def get_ans(id):
ans = (get_db().execute(
"SELECT a.id, comment, post_id, author_c"
" FROM answer a JOIN post p ON a.post_id = p.id"
" WHERE a.id = ?",
(id, ),
).fetchone())
if ans is None:
abort(404, "Answer id {0} doesn't exist.".format(id))
return ans
def get_post(id, check_author=True):
post = (get_db().execute(
"SELECT p.id, title, body, tag, 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} doesn't exist.".format(id))
if check_author and post["author_id"] != g.user["id"]:
abort(403)
return post
def update_ans(id):
answer = get_ans(id)
if request.method == "POST":
comment = request.form["ans"]
error = None
if not comment:
error = "Answer is required."
if error is not None:
flash(error)
else:
db = get_db()
db.execute("UPDATE answer SET comment = ? WHERE id = ?",
(comment, id))
db.commit()
return redirect(url_for("blog.index"))
return render_template("blog/update_ans.html", answer=answer)
def login():
if request.method == "POST":
username = request.form["username"]
password = request.form["password"]
db = get_db()
error = None
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 = "Incorrect password."
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 create():
if request.method == "POST":
title = request.form["title"]
body = request.form["body"]
tag = request.form["tag"]
error = None
if not title:
error = "Title is required."
if not body:
error = "Description is required."
if error is not None:
flash(error)
else:
db = get_db()
db.execute(
"INSERT INTO post (title, body, tag, author_id) VALUES (?, ?, ?, ?)",
(title, body, tag, g.user["id"]),
)
db.commit()
return redirect(url_for("blog.index"))
return render_template("blog/create.html")
def delete_ans(id):
get_ans(id)
db = get_db()
db.execute("DELETE FROM answer WHERE id = ?", (id, ))
db.commit()
return redirect(url_for("blog.index"))