I want to pass a str to be used as the prompt for a form. I thought it would be simple but it is proving to be difficult.
Here is my code:
class PostForm(FlaskForm):
post = TextAreaField(Question, validators=[DataRequired()])
submit = SubmitField('Submit')`
And,
form = PostForm('my question')
the corresponding html
{{ wtf.quick_form(form) }}
So, I still don't have an answer to the question, but I did manage to come up with a solution.
class PostForm(FlaskForm):
post = TextAreaField(_l('This no longer matters'), validators=[DataRequired()])
submit = SubmitField(_l('Submit'))
And then in the routes
from wtforms.fields.core import Label
form = PostForm()
form.post.label = Label("post", 'Real question goes here')}
The explanation for this is that TextAreaField creates a label attribute on post that is accessible and changable, but it needs to be formated correctly as a Label object from wtforms.fields.core. (Simply reassigning it as a string did not work). The representation of this object is:
<label for="post">Real question goes here</label>
And it is of type
<class 'wtforms.fields.core.Label'>
form.post.label.text = f'{<whatever>}'Today I'm figured out about a similar problem as yours. I wanted to pass a variable to FlaskForm. For a small CV creation app, I want to give the user an opportunity to create more than 1 entry for his work experience and I wanted to do it with FieldList and FormField. And I needed to do it on one page so in one form.
My solution is pretty simple python implementation of factory pattern for forms:
class ConstructorForm(FlaskForm):
...
work_experience_form = FieldList(FormField(WorkExperienceForm), min_entries=1, max_entries=1)
skills_form = FieldList(FormField(SkillsForm), min_entries=1, max_entries=1)
...
And here is my function for building extending forms:
def constructor_form(work_experience_forms=1, skills_forms=1):
class _ConstructorForm(ConstructorForm):
pass
_ConstructorForm.work_experience_form = FieldList(
FormField(WorkExperienceForm), min_entries=work_experience_forms, max_entries=work_experience_forms
)
_ConstructorForm.skills_form = FieldList(
FormField(SkillsForm), min_entries=skills_forms, max_entries=skills_forms
)
return _ConstructorForm()
Try this:
def PostForm(question)
class F(Flaskform):
post = TextAreaField(question, validators=[DataRequired()])
submit = SubmitField('Submit')
return F()
