[FIXED] Get choices from a DataBase query in wtforms and flask-sqlalchemy


I’m developing a web app using Flask, SQLAlchemy and WTForms. I would like to get my choices in a SelectField from a query through my DB.

With more details.

my_query = my_table.query.with_entities(My_Entities).all()


[(u’1′,), (u’2′,), (u’3′,)]

My class

class MyForm(Form):
    My_Var = SelectField(choices=RIGHT_HERE)

Is there any way ?


In this situation what you can do is use the extensions that are in WTForms. What you do is import the QuerySelectField that you need:

from wtforms.ext.sqlalchemy.fields import QuerySelectField

Then you create a function that will query the database and return the stuff you need:

def skill_level_choices():      
    return db.session.query(SkillLevel).all()

After you have the query object you can place it into your QuerySelectField by using the query_factory parameter

skill_level = QuerySelectField(u'Skill level',      

Answered By – m1yag1

Answer Checked By – Dawn Plyler (Easybugfix Volunteer)

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