so, i just learn about make some website with flask. everything was fine until this error makes me crazy. can u solve my problem?
this is my def function to delete some note
@views.route('/delete-note',methods=['POST'])
def delete_note():
note = json.loads(request.data)
noteId = note['noteId']
note = Note.query.get(noteId)
if note:
if note.user_id == current_user.id:
db.session.delete(noteId)
db.session.commit()
return jsonify({})
and this is my .js code
function deleteNote(noteId) {
fetch("/delete-note", {
method: "POST",
body: JSON.stringify({ noteId: noteId }),
}).then((_res) => {
window.location.href = "/";
});
}
and this is how i make the button with html
<ul class="list-group list-group-flush" id="notes">
{% for note in user.notes %}
<li class="list-group-item">
{{ note.data }}
<button type="button" class="close" onClick="deleteNote({{ note.id }})">
<span aria-hidden="true">×</span>
</button>
</li>
{% endfor %}
</ul>
can u help me? i dont know how to solve it. please help me
Are you loading the js file correctly. You can try loading the function before the HTML markup eg
<head>
<script>
function deleteNote(noteId) {
fetch("/delete-note", {
method: "POST",
body: JSON.stringify({ noteId: noteId }),
}).then((_res) => {
window.location.href = "/";
});
}</script>
</head>
<body>
<ul class="list-group list-group-flush" id="notes">
{% for note in user.notes %}
<li class="list-group-item">
{{ note.data }}
<button type="button" class="close" onClick="deleteNote({{ note.id }})">
<span aria-hidden="true">×</span>
</button>
</li>
{% endfor %}
</ul>
</body>