forms.py

from flask_wtf import FlaskForm
from wtforms import TextAreaField, SubmitField, StringField, SelectField
from wtforms.validators import DataRequired, Length


class MyBaseForm(FlaskForm):
    class Meta:
        locales = ['zh']

class NerForm(MyBaseForm):
    ner_text = TextAreaField('ner_text', validators=[DataRequired(), Length(0, 300)])
    submit = SubmitField('确认')

class EntityForm(MyBaseForm):
    entity = StringField('entity', validators=[DataRequired()])
    submit = SubmitField('查询')

class RelationForm(MyBaseForm):
    entity1 = StringField('entity1')
    relation = SelectField('relation', choices=[(1, '无限制')], default=1, coerce=int)
    entity2 = StringField('entity2')
    submit = SubmitField('查询')