I am trying to query my sqlite database using flask routing such as
@app.route ('/movies/genres/<name>/')
def test(name = None):
g.db = connect_db()
cur = g.db.execute('select * from movies where category = ?', [name])
movies = [dict(id=row[0], movie_name=row[1]) for row in cur.fetchall()]
g.db.close()
return render_template('test.html', movies=movies, name=name)
The routing does work but the page doesn't display any data from the database.
{% for movie in movies %}
<div>
<div class="well" style="width:220px; height:312px; float:left; margin:10px; padding:5px;">
<img src="{{ movie.poster }}" alt="uh oh" style="width:209px;height:300px"> {{ movie.movie_name }}
</div>
{% endfor %}
{% endblock %}
Can anyone see what the issue might be?
The error is probably somewhere else, because this works for me:
File demo.py
:
#!/usr/bin/env python3
from flask import Flask, g, render_template
import sqlite3
app = Flask(__name__)
@app.route('/movies/genres/<name>/')
def test(name=None):
g.db = connect_db()
cur = g.db.execute('select id, name from movies where category = ?', [name])
movies = [dict(id=row[0], movie_name=row[1]) for row in cur.fetchall()]
g.db.close()
return render_template('test.html', movies=movies, name=name)
def connect_db():
return sqlite3.connect('example.db')
def init_db():
conn = connect_db()
c = conn.cursor()
try:
c.execute('create table movies (id int, name text, category text)')
c.execute('insert into movies (id, name, category) values (?, ?, ?)', (1, 'Alien', 'sci-fi'))
c.execute('insert into movies (id, name, category) values (?, ?, ?)', (2, 'Aliens', 'sci-fi'))
c.execute('insert into movies (id, name, category) values (?, ?, ?)', (3, 'Prometheus', 'sci-fi'))
except sqlite3.OperationalError as e:
assert 'table movies already exists' in str(e)
conn.commit()
conn.close()
def main():
init_db()
app.run(debug=True)
if __name__ == '__main__':
main()
File templates/test.html
:
<ul>
{%- for movie in movies %}
<li>{{ movie.movie_name }}</li>
{%- endfor %}
</ul>
Console:
$ ./demo.py &
* Running on http://127.0.0.1:5000/
$ curl 127.0.0.1:5000/movies/genres/sci-fi/
<ul>
<li>Alien</li>
<li>Aliens</li>
<li>Prometheus</li>
</ul>
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