根据flask admin中另一个字段的值显示字段

from flask_admin.contrib.sqla import ModelView
from flask_admin.model import typefmt
from flask_admin.contrib.sqla.form import Select2Widget
from flask_admin.form import rules

class MyModelView(ModelView):
    column_formatters = {
        'dependent_field': typefmt.BASE_FORMATTERS[typefmt.string_formatter],
    }

    column_type_formatters = {
        typefmt.string_formatter: lambda v, c, m, p: typefmt.string_formatter(v, c, m, p) if m.another_field == 'some_value' else ''
    }

    form_widget_args = {
        'dependent_field': {
            'data-role': 'dependent-field',
        }
    }

    form_rules = (
        rules.Field('another_field'),
        rules.Field('dependent_field', dependencies='another_field')
    )