python - Flask does not take WTForms input -

i'm tring create app flask wtforms.

in controller.py have:

@mod_private.route('/portfolio/', methods=['get', 'post']) @login_required def portfolio():    print "in portfolio"  # read    form = createcoinsform(request.form)    if request.method == 'post' , form.validate_on_submit():        print form.coins.data   #i cannot take value        return render_template("private/portfolio.html",form=form)    return render_template("private/portfolio.html",form=form) 

in forms.py:

class createcoinsform(form):     coins = integerfield('coins',                          [datarequired('num required'),                          numberrange(min=0, max=10)]) 

and template

<form method="post" action="/private/portfolio/" accept-charset="utf-8" role="form">            <p> {{ form.coins }}</p>         <p><input type=submit value=generate>     </form> 

my problem, wrote in code cannot retrieve string inserted in template.

your problem suggests using built-in csrf protection on form, , form isn't validating because haven't included csrf token.

try adjusting template so:

<form method="post" action="/private/portfolio/" accept-charset="utf-8" role="form">    {{ form.hidden_tag() }}            <p> {{ form.coins }}</p>         <p><input type=submit value=generate>     </form>