I’m basically building a secured online diary application with Flask. However my Python source code returns a syntax error when I try to test the app. I can’t detect what’s wrong with the syntax. Your help will be appreciated.
I’m attaching a screenshot of the error. And here’s my SQL database’s schema:
CREATE TABLE users (
id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
username TEXT NOT NULL,
hash TEXT NOT NULL
);
CREATE TABLE sqlite_sequence(name,seq);
CREATE UNIQUE INDEX username ON users (username);
CREATE TABLE diaries (
id INTEGER PRIMARY KEY AUTOINCREMENT,
user_id INTEGER NOT NULL,
name TEXT NOT NULL,
time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
title TEXT NOT NULL,
description TEXT NOT NULL,
img_url TEXT,
FOREIGN KEY(user_id) REFERENCES users(id)
);
New error: unsupported value
>Solution :
It is INSERT statement that causes error.
Well, not the insert itself but the way you’re using it.
Values should be passed as a tuple (values between "(" and ")")
So, you need to update db.execute line with something like that
db.execute("insert into table_name(col1, col2) values(?, ?)", (col1_val, col2_val))
UPD. regarding the error on second screenshot.
db.execute("Select…) does not return a value but a set of values.
So, you might wanted to use fetchone() as in docs
res = cur.execute('SELECT count(rowid) FROM stocks') # gets you set records
print(res.fetchone()) # get first record
Anyway, check the docs I provided you link to with.