I am not a programmer yet (working on it - this is my first big project), so sorry for the messy-ugly code.
I have some issues using QuerySelectField and request.form['form_field_name'] to pull data from a SQlite table and to put it in another table.
I am trying to get data from the name column in the Post model to fill the actual_amount_name column in the ActualPost model, but I think I am actually pulling dictionary keys.
These are the 2 models/tables I am using:
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
title = db.Column(db.String(30), nullable=False, default='planned')
category = db.Column(db.String(30), nullable=False, default=None)
name = db.Column(db.String(30), nullable=True)
planned_amount_month = db.Column(db.Float, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
date_period = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
comments = db.Column(db.Text, nullable=True)
def __repr__(self):
return f"Post('{self.title}, '{self.category}'\
, '{self.name}', '{self.planned_amount_month}'\
, '{self.date_period}', '{self.comments}')"
#the function below queries the above model and passes the data to the QuerySelectField
def db_query():
return Post.query
class ActualPost(db.Model):
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
title = db.Column(db.String(30), nullable=False, default='actual')
category = db.Column(db.String(30), nullable=False, default=)
actual_amount_name = db.Column(db.String(30), nullable=True)
actual_amount = db.Column(db.Float, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
date_posted = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
comments = db.Column(db.Text, nullable=True)
def __repr__(self):
return f"ActualPost('{self.title}, '{self.category}'\
, '{self.actual_amount_name}', '{self.actual_amount}'\
, '{self.date_posted}', '{self.comments}')"
Now the forms:
In the Post model I have a column called name. The data in this filed is added by the user using WTForms (the name field in the class below):
class PostForm(FlaskForm):
title = HiddenField('Please enter the monthly Planned Amount details below:'\
,default='planned')
category = SelectField('Category', choices=[('savings', 'Savings')\
,('income', 'Income'), ('expenses', 'Expense')]\
,validators=[DataRequired()])
name = StringField('Name', validators=[DataRequired()])
planned_amount_per_month = FloatField('Planned Amount'\
,validators=[DataRequired()])
date_period = DateField('Planned Month', format='%Y-%m-%d')
comments = TextAreaField('Comments (optional)')
submit = SubmitField('Post')
In the ActualPost model I have a column called actual_amount_name and I want to fill the data in it by using a WTForm QuerySelectField, which queries the name in the Post model:
class PostActualForm(FlaskForm):
title = HiddenField('Please enter the Actual Amount details below:', default='actual')
category = SelectField('Category', choices=[('savings', 'Savings')\
,('income', 'Income'), ('expenses', 'Expense')]\
,validators=[DataRequired()])
actual_amount_name = QuerySelectField('Name', query_factory=db_query\
,allow_blank=False, get_label='name')
actual_amount = FloatField('Actual Amount', validators=[DataRequired()])
date_posted = DateField('Date of actual amount', format='%Y-%m-%d')
comments = TextAreaField('Comments (optional)')
submit = SubmitField('Post')
This is the route that takes the passes the name data from one model to the other:
@posts.route("/post/new_actual", methods=['GET', 'POST'])
@login_required
def new_actual_post():
form = PostActualForm()
if form.validate_on_submit():
actualpost = ActualPost(title=form.title.data\
,category=form.category.data\
,actual_amount_name=request.form['actual_amount_name']\
,actual_amount=form.actual_amount.data\
,date_posted=form.date_posted.data\
,comments=form.comments.data\
,actual_author=current_user)
db.session.add(actualpost)
db.session.commit()
flash('Your post has been created!', 'success')
return redirect(url_for('main.actual'))
return render_template('create_actual_post.html', title='Actual',
form=form, legend='New Actual Amount')
The issue I have, is that instead of the name being transferred over:

I think that the dictionary key is being transferred and I see a number:

I have been battling this for 3 days and I am fairly certain that QuerySelectField is the culprit.
I have tried other ways of calling the form, like actual_amount_name=request.actual_amount_name.data which errors-out with
sqlalchemy.exc.InterfaceError: <unprintable InterfaceError object>
I have also tried multiple other ways, including get, from this documentation. I have also tried to query the database and to use the SelectField, instead of QuerySelectField, but no luck until now.
I am using the latest versions of Python, Flask, SQLAlchemy, etc, and I am using Pycharm as an IDE
Edit:
Based on the comments received below (thank you all!) I went over the answers from this question
I have removed .all() from the function query_db in my models (edited above as well)
Retried, using actual_amount_name=request.form['actual_amount_name'] in the route and I got the same result (dict key instead of name)
Modified the route to actual_amount_name=form.actual_amount_name.data and I added a bit of code to write the output of the route to a txt file:
actualpost = ActualPost(title=form.title.data, category=form.category.data\
, actual_amount_name=form.actual_amount_name.data\
, actual_amount=form.actual_amount.data, date_posted=form.date_posted.data\
, comments=form.comments.data, actual_author=current_user)
text = open("C:/Users/Ato/Desktop/Proiect Buget/actual_post_test_1.txt", "a")
text.write(str(actualpost))
text.close()
db.session.add(actualpost)
db.session.commit()
The data being written to the txt file contains the correct actual_amount_name (Spook - my cat's name):
ActualPost('actual, 'expenses' , 'Post('planned, 'expenses' , 'Spook', '123.0' , '2018-05-22 00:00:00', '')', '26.5' , '2018-05-22', 'testul 19')
But I get the debugger error:
sqlalchemy.exc.InterfaceError: <unprintable InterfaceError object>
I got it!!!!
while poking some more around StackOverflow, I stumbled over this question and the answer provided to it by the user ACV.
So, all I needed to do was, in my route, to add .name at the end of actual_amount_name=form.actual_amount_name.data, like so:
actual_amount_name=form.actual_amount_name.data.name
This is what my web page table looks like now:

And this is the output in the text file:
ActualPost('actual, 'expenses' , 'Spook', '26.5' , '2018-05-22', 'God dammit' aaaargh#&*^$lkjsdfho')
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