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Python

Posted by Claudio Paladini
Claudio Paladini
13,403 Points

Looping a form within a route (flask)

HI. I created a flask app with two forms: ProjectForm, StepForm. The ProjectForm simply asks for a title a description and a number of steps. Then the StepForm should be rendered on successive pages for as many times ass stated in the ProjectForm.

What I got so far though arrives upto the first StepForm and allows me to submit it, but it will then render the first StepForm again forever:

@app.route("/new_project", methods=("POST", "GET"))
@login_required
def post_project():
    form = forms.ProjectForm()
    if form.validate_on_submit():
        models.Project.create(user=g.user.id,
                              title=form.title.data,
                              steps_number = form.steps_number.data,
                              description=form.description.data.strip())
        flash("Project created", "success")
        if form.steps_number.data != 0:
            project = models.Project.select().where(models.Project.title == form.title.data).get()
            return redirect(url_for("add_step",project_id=project.id))
        if form.steps_number.data == 0:
            return redirect(url_for("projects"))
    return render_template("post_project.html", form=form)

@app.route("/new_step/<int:project_id>", methods=("POST", "GET"))
@login_required
def add_step(project_id):
    form = forms.StepForm()
    project = models.Project.select().where(models.Project.id == project_id).get()
    steps = 0
    for i in range(0,project.steps_number):
        steps+=1
        if form.validate_on_submit():
            models.Step.create(project=project.id,
                                    title=form.title.data.strip(),
                                    instruction=form.instruction.data.strip())
            flash("Step Added", "success")
            if project.steps_number == steps:
                return redirect(url_for("projects"))
        return render_template("add_step.html", form=form, step=steps)