django.forms TypedChoiceField Python Code Examples

TypedChoiceField (documentation), from the Django forms module, enables safe handling of pre-defined selections collected via an HTTP POST request from an HTML form submission.

TypedChoiceField can either be imported from django.forms or django.forms.fields. django.forms is more commonly used because it is less characters for the equivalent effect.

Example 1 from dmd-interpreter

dmd-interpreter (running web app) is a Python tool to aggregate clinically relevant information related to variants in the DMD gene and display that data to a user with a Django web application.

dmd-interpreter / interpreter / forms.py

# forms.py
from django import forms

choices = [(True,'Yes'),(False,'No')]

class IndexForm(forms.Form):
    mutation = forms.CharField(label = 'Mutation', max_length = 100)

class ACMGForm(forms.Form):
    pvs1 = forms.TypedChoiceField(label = 'Does the variant cause a premature stop codon (nonsense)?', choices=choices, widget=forms.RadioSelect)
    pvs2 = forms.TypedChoiceField(label = 'Does the variant cause a frameshift?', choices=choices, widget=forms.RadioSelect)
    pvs3 = forms.TypedChoiceField(label = 'Does the variant cause a multiexon deletion involving key functional domains?', choices=choices, widget=forms.RadioSelect)
    pvs4 = forms.TypedChoiceField(label = 'Does the variant cause a change in splice site?', choices=choices, widget=forms.RadioSelect)
    pvs5 = forms.TypedChoiceField(label = 'Does the variant cause a change in initiation codon?', choices=choices, widget=forms.RadioSelect)
    ps1 = forms.TypedChoiceField(label = 'Is there a reported pathogenic variant causing the same amino acid change?', choices=choices, widget=forms.RadioSelect)
    ps2 = forms.TypedChoiceField(label = 'Is the variant <i>de novo</i> (confirmed to not be present in either parent)?', choices=choices, widget=forms.RadioSelect)
    ps3 = forms.TypedChoiceField(label = 'Are there well-established <i>in vitro</i> studies predicting a damaging effect of this variant on the gene or gene product?', choices=choices, widget=forms.RadioSelect)
    ps4 = forms.TypedChoiceField(label = 'Is this variant more prevalence in affected individuals versus controls? (OR > 5.0)', choices=choices, widget=forms.RadioSelect)
    pm1 = forms.TypedChoiceField(label = 'Is this variant located in a mutational hot spot and/or critical functional domain?', choices=choices, widget=forms.RadioSelect)
    pm2 = forms.TypedChoiceField(label = 'Is the variant absent from controls (autosomal dominant), or found at an extremely low frequency (autosomal recessive)? (Ex. in ExAC or 1000 genomes)', choices=choices, widget=forms.RadioSelect)
    pm3 = forms.TypedChoiceField(label = 'Is this variant in a gene linked to an autosomal recessive condition and in <i>trans</i> with a pathogenic variant?', choices=choices, widget=forms.RadioSelect)
    pm4 = forms.TypedChoiceField(label = 'Does the variant change the protein length (while preserving reading frame; deletion, insertion, stop-loss)?', choices=choices, widget=forms.RadioSelect)
    pm5 = forms.TypedChoiceField(label = 'Does the variant cause a missense change at a residue where a different change is known to be pathogenic?', choices=choices, widget=forms.RadioSelect)
    pm6 = forms.TypedChoiceField(label = 'Do you think the variant is <i>de novo</i> but there has not been confirmation (sequencing of parents)?', choices=choices, widget=forms.RadioSelect)
    pp1 = forms.TypedChoiceField(label = 'Is the variant in a known disease-causing gene and has it co-segregated with affected family members?', choices=choices, widget=forms.RadioSelect)
    pp2 = forms.TypedChoiceField(label = 'Is the variant in a gene where disease-causing variants are not commonly missense, and in which missense variants are a common mechanism of disease?', choices=choices, widget=forms.RadioSelect)
    pp3 = forms.TypedChoiceField(label = 'Do multiple <i>in silico</i> functional predication tools support a deleterious effect on the gene or gene product?', choices=choices, widget=forms.RadioSelect)
    pp4 = forms.TypedChoiceField(label = 'Does the patient\'s phenotype and/or family history strongly indicate a disease with a single genetic ontology?', choices=choices, widget=forms.RadioSelect)
    pp5 = forms.TypedChoiceField(label = 'Does a reputable source report the variant as pathogenic (but the evidence is not available)?', choices=choices, widget=forms.RadioSelect)

Example 2 from django-angular

django-angular (project examples website) is a library with helper code to make it easier to use Angular as the front-end to Django projects. The code for django-angular is open source under the MIT license.

django-angular / djng / forms / fields.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

import re
import mimetypes

from django.conf import settings
from django.contrib.staticfiles.storage import staticfiles_storage
from django.core import signing
from django.core.exceptions import ImproperlyConfigured, ValidationError
from django.core.files.storage import default_storage
from django.core.files.uploadedfile import InMemoryUploadedFile, TemporaryUploadedFile
from django.urls import reverse_lazy
from django.forms import fields, models as model_fields, widgets
from django.utils.html import format_html
from django.utils.module_loading import import_string
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy as _, ungettext_lazy

from djng import app_settings
from .widgets import DropFileWidget, DropImageWidget


## ... source file abbreviated to get to the TypedChoiceField examples ...

class TypedChoiceField(MultipleFieldMixin, fields.TypedChoiceField):
    def get_potential_errors(self):
        if isinstance(self.widget, widgets.RadioSelect):
            errors = self.get_multiple_choices_required()
        else:
            errors = self.get_input_required_errors()
        return errors



## ... source file continues with no further examples ...

Example 3 from django-filter

django-filter (project documentation and PyPI page) makes it easier to filter down querysets from the Django ORM by providing common bits of boilerplate code. django-filter is provided as open source.

django-filter / django_filters / filters.py

from collections import OrderedDict
from datetime import timedelta

from django import forms
from django.db.models import Q
from django.db.models.constants import LOOKUP_SEP
from django.forms.utils import pretty_name
from django.utils.itercompat import is_iterable
from django.utils.timezone import now
from django.utils.translation import gettext_lazy as _

from .conf import settings
from .constants import EMPTY_VALUES
from .fields import (
    BaseCSVField,
    BaseRangeField,
    ChoiceField,
    DateRangeField,
    DateTimeRangeField,
    IsoDateTimeField,
    IsoDateTimeRangeField,
    LookupChoiceField,
    ModelChoiceField,
    ModelMultipleChoiceField,
    MultipleChoiceField,
    RangeField,
    TimeRangeField
)
from .utils import get_model_field, label_for_filter


## ... source file abbreviated to get to code examples ...


class TypedChoiceFilter(Filter):
    field_class = forms.TypedChoiceField


class UUIDFilter(Filter):
    field_class = forms.UUIDField


## ... source file continues with no further TypedChoiceField examples ...

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