My website lets a teacher create multiple questions for an assignment. Once the assignment is created, a student can come and write an answer for each question.
My problem is that only one answer is saved for each entry. For example, there are two questions in an assignment. The answer for question 1 is "asdf", the answer for question 2 is "fdsa". The content for both answers will be saved as "asdf", when they should be unique.
I have tried printing request.form and it looks like this (excluding the csrf_tokens):
('code_content', 'asdf'), ('code_content', 'fdsa'), ('submit', 'Submit Assignment')]
So I know that fdsa is still in there somewhere, but I'm not able to access it. If this is important, there were two csrf_tokens that were the exact same when printing request.form.
To get that data, I created a 'GetQuestionContent()' form for as many questions in the assignment. Like this:
questions = []
question_content_forms = []
for question in Question.query.all():
if int(question.owner) == int(assignment_id):
questions.append(question)
question_content_forms = [GetQuestionContent() for item in range(0, len(questions))]
Then, in the HTML, I write the form like this:
<form method="POST">
{% for question in questions %}
<div >
<h2 id="heading{{ question.id }}">
<button
type="button"
data-bs-toggle="collapse"
data-bs-target="#collapse{{ question.id }}"
aria-expanded="false"
aria-controls="collapse{{ question.id }}">
{{ question.title }}
</button>
</h2>
<div id="collapse{{ question.id }}"
aria-labelledby="heading{{ question.id }}"
data-bs-parent="#questionsAccordion">
<p>
<small>
<strong>Question Description</strong>
<br>
{% if question.description != "" %}
{{ question.description|safe }}
{% else %}
<em>The assignment creator did not provide a description for this question.</em>
{% endif %}
</small>
</p>
{{ question_content_forms[loop.index - 1].hidden_tag() }}
{% if question.type == "code" %}
<div >
{{ question_content_forms[loop.index - 1].code_content(id = "editor") }}
</div>
{% endif %}
{% if question.type == "text" %}
{{ question_content_forms[loop.index - 1].text_content|safe }}
{% endif %}
</div>
</div>
{% endfor %}
{% if current_user.account_type == "Student" %}
{{ submit_button.submit(, value="Submit Assignment")}}
{% endif %}
</form>
When the user presses submit, I want to get every answer and put it into their own entry for the StudentQuestionSubmission table in my database. This is what that code looks like:
if request.method == "POST" and submit_button.data:
print(request.form)
index = 0
for question in questions:
question_to_submit = StudentQuestionSubmission(question_id = int(question.id),
student_id = int(current_user.id))
if question.type == "code":
question_to_submit.question_content = question_content_forms[index].code_content.data
elif question.type == "text":
question_to_submit.question_content = question_content_forms[index].text_content.data
print(f"\n\n{ question_content_forms[index].code_content.data } \n \
{ question_content_forms[index].text_content.data } \n\n")
index = 1
db.session.add(question_to_submit)
assignment_to_submit = StudentAssignmentSubmission(assignment_id = int(assignment_id),
student_id = int(current_user.id),
has_submitted = True,
submission_date = date.today())
db.session.add(assignment_to_submit)
db.session.commit()
flash(f"'{assignment.name}' has been succesfully submitted.")
return redirect(url_for('classroom_assignments_list', class_id = class_id, paper_id = paper_id))
You can see that I print the data of the textboxes. It will output 'asdf' on both iterations even if I wrote something entirely different for question 2.
I appreciate any help. Thank you.
EDIT: 'hackily' getting the content from multiple instances of the same form using request.form.to_dict(flat=False)['your_form_field']
Here's the new code:
if request.method == "POST" and submit_button.data:
code_content = request.form.to_dict(flat=False)['code_content']
text_content = request.form.to_dict(flat=False)['text_content']
code_content_index = 0
text_content_index = 0
for question in questions:
question_to_submit = StudentQuestionSubmission(question_id = int(question.id),
student_id = int(current_user.id))
if question.type == "code":
question_to_submit.question_content = code_content[code_content_index]
code_content_index = 1
elif question.type == "text":
question_to_submit.question_content = text_content[text_content_index]
text_content_index = 1
print(f"\n\n{ question_to_submit.question_content } \n\n")
db.session.add(question_to_submit)
assignment_to_submit = StudentAssignmentSubmission(assignment_id = int(assignment_id),
student_id = int(current_user.id),
has_submitted = True,
submission_date = date.today())
db.session.add(assignment_to_submit)
db.session.commit()
flash(f"'{assignment.name}' has been succesfully submitted.")
return redirect(url_for('classroom_assignments_list', class_id = class_id, paper_id = paper_id))
CodePudding user response：
My suggestion is not to create multiple forms, but to dynamically create one form for all the necessary questions. In this case it is possible to assign a unique id to each field, which indicates that it belongs to the question.
The following example shows you a possible implementation.
An answer field is added to the form for each question, which has the id of the question in its name. Thus, the respective question can be assigned when rendering and querying the input data.
Flask
from flask import (
Flask,
render_template,
request
)
from flask_sqlalchemy import SQLAlchemy
from flask_wtf import FlaskForm
from wtforms import TextAreaField, SubmitField
from wtforms.validators import DataRequired
import random
app = Flask(__name__)
app.secret_key = 'your secret here'
db = SQLAlchemy(app)
class Question(db.Model):
id = db.Column(db.Integer, primary_key=True)
type = db.Column(db.String)
owner = db.Column(db.Integer)
title = db.Column(db.String)
description = db.Column(db.Text)
with app.app_context():
db.drop_all()
db.create_all()
qs = [Question(
type=random.choice(['code', 'text']),
owner=1,
title=f'Question {i 1}',
description=f'Your description here.'
) for i in range(3)]
db.session.add_all(qs)
db.session.commit()
def form_factory(qs):
class F(FlaskForm):
submit = SubmitField('Submit')
for q in qs:
field = TextAreaField(
q.type.title(),
validators=[
# DataRequired()
],
)
setattr(F, f'q-{q.id}', field)
return F
@app.route('/', methods=['GET', 'POST'])
def index():
questions = Question.query.filter_by(owner=1).all()
form = form_factory(questions)(request.form)
if form.validate_on_submit():
for q in questions:
field = getattr(form, f'q-{q.id}')
print(f'Question-{q.id}\n{field.data}\n')
return render_template('index.html', **locals())
HTML (templates/index.html)
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Index</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-0evHe/X R7YkIZDRvuzKMRqM OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor" crossorigin="anonymous">
</head>
<body>
<div >
<form method="post">
{{ form.hidden_tag() }}
<div id="accordionExample">
{% for q in questions -%}
<div >
<h2 id="heading-{{loop.index}}">
<button
type="button"
data-bs-toggle="collapse"
data-bs-target="#collapse-{{loop.index}}"
aria-expanded="false"
aria-controls="collapse-{{loop.index}}"
>
{{ q.title }}
</button>
</h2>
<div
id="collapse-{{loop.index}}"
aria-labelledby="heading-{{loop.index}}"
data-bs-parent="#accordionExample"
>
<div >
<div >
{{ q.description|safe }}
</div>
{% set field = form|attr('q-{}'.format(q.id)) -%}
<div>
{{ field.label(class_='form-label') }}
{{ field(class_='form-control' ('', ' editor')[q.type=='code']) }}
</div>
</div>
</div>
</div>
{% endfor -%}
</div>
<div >
{{ form.submit(class_='btn btn-primary') }}
</div>
</form>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2" crossorigin="anonymous"></script>
</body>
</html>