├── .gitignore ├── LICENSE ├── MANIFEST.in ├── README.rst ├── clever_selects ├── __init__.py ├── admin.py ├── form_fields.py ├── forms.py ├── static │ └── js │ │ └── clever-selects.js ├── templates │ └── clever_selects │ │ └── widgets │ │ └── chained_select.html ├── templatetags │ ├── __init__.py │ └── clever_selects_extras.py ├── views.py └── widgets.py ├── example ├── clever_selects ├── example │ ├── __init__.py │ ├── admin.py │ ├── fixtures │ │ └── initial_data.json │ ├── forms.py │ ├── helpers.py │ ├── models.py │ ├── settings.py │ ├── static │ │ └── js │ │ │ └── jquery-1.10.2.min.js │ ├── templates │ │ ├── cars.html │ │ ├── form.html │ │ └── home.html │ ├── urls.py │ ├── views.py │ └── wsgi.py ├── manage.py └── requirements.txt └── setup.py /.gitignore: -------------------------------------------------------------------------------- 1 | *.py[co] 2 | .DS_Store 3 | .sass-cache 4 | 5 | # Packages 6 | *.egg 7 | *.egg-info 8 | dist 9 | build 10 | eggs 11 | parts 12 | bin 13 | var 14 | sdist 15 | develop-eggs 16 | .installed.cfg 17 | 18 | # Installer logs 19 | pip-log.txt 20 | 21 | # Unit test / coverage reports 22 | .coverage 23 | .tox 24 | 25 | #Translations 26 | *.mo 27 | 28 | #Mr Developer 29 | .mr.developer.cfg 30 | 31 | #IDE 32 | .idea 33 | 34 | #LiClips 35 | .project 36 | .pydevproject -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Copyright 2014 Pragmatic Mates s.r.o. 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining 4 | a copy of this software and associated documentation files (the 5 | "Software"), to deal in the Software without restriction, including 6 | without limitation the rights to use, copy, modify, merge, publish, 7 | distribute, sublicense, and/or sell copies of the Software, and to 8 | permit persons to whom the Software is furnished to do so, subject to 9 | the following conditions: 10 | 11 | The above copyright notice and this permission notice shall be 12 | included in all copies or substantial portions of the Software. 13 | 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 15 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 17 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 18 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 19 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 20 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- /MANIFEST.in: -------------------------------------------------------------------------------- 1 | include README.rst 2 | recursive-include clever_selects/static * 3 | recursive-include clever_selects/templates * -------------------------------------------------------------------------------- /README.rst: -------------------------------------------------------------------------------- 1 | django-clever-selects 2 | ===================== 3 | 4 | This library is inspired by **django-chained-selectbox** from *s-block* 5 | (https://github.com/s-block/django-chained-selectbox). 6 | 7 | It serves chained select box widget for Django framework using AJAX requests for chaining select boxes together. 8 | The values change depending on the parent value. 9 | 10 | Previous mentioned library was intended for use in Django admin only. The new library has frontend functionality, 11 | improved existing instance data initialization and new ``ChainedModelChoiceField``. It also uses custom TestClient which 12 | is able pass ``request.user`` variable into AJAX view if user is logged in. It is very useful if you need to filter result queryset by 13 | user permissions for example. 14 | 15 | Tested on Django 1.4.5. 16 | 17 | 18 | Requirements 19 | ------------ 20 | - Django 21 | 22 | - jQuery 23 | 24 | 25 | Installation 26 | ------------ 27 | 28 | 1. Install python library using pip: pip install django-clever-selects 29 | 30 | 2. Add ``clever_selects`` to ``INSTALLED_APPS`` in your Django settings file 31 | 32 | 3. Add ``clever_selects_extras`` to your ``{% load %}`` statement and put ``{% clever_selects_js_import %}`` tag before closing ```` element. It is important to load clever-selects.js file after body content, so do not put it in the ! 33 | 34 | 35 | Usage 36 | ----- 37 | 38 | Forms 39 | ''''' 40 | 41 | Form must inherit from ``ChainedChoicesMixin`` (or from ``ChainedChoicesForm`` / ``ChainedChoicesModelForm``, depends on your needs) 42 | which loads the options when there is already an instance or initial data:: 43 | 44 | from clever_selects.form_fields import ChainedChoiceField 45 | from clever_selects.forms import ChainedChoicesForm 46 | 47 | 48 | class SimpleChainForm(ChainedChoicesForm): 49 | first_field = ChoiceField(choices=(('', '------------'), (1, '1'), (2, '2'), (3, '3'), (4, '4'), (5, '5'), )) 50 | second_field = ChainedChoiceField(parent_field='first_field', ajax_url=reverse_lazy('ajax_chained_view')) 51 | 52 | 53 | class MultipleChainForm(ChainedChoicesForm): 54 | first_field = ChoiceField(choices=(('', '------------'), (6, 6), (7, 7), (8, 8), (9, 9), (10, 10), )) 55 | second_field = ChainedChoiceField(parent_field='first_field', ajax_url=reverse_lazy('ajax_chained_view')) 56 | third_field = ChainedChoiceField(parent_field='second_field', ajax_url=reverse_lazy('ajax_chained_view')) 57 | fourth_field = ChainedChoiceField(parent_field='third_field', ajax_url=reverse_lazy('ajax_chained_view')) 58 | fifth_field = ChainedChoiceField(parent_field='fourth_field', ajax_url=reverse_lazy('ajax_chained_view')) 59 | 60 | 61 | class ModelChainForm(ChainedChoicesModelForm): 62 | brand = forms.ModelChoiceField(queryset=CarBrand.objects.all(), required=True, 63 | empty_label=_('Select a car brand')) 64 | model = ChainedModelChoiceField(parent_field='brand', ajax_url=reverse_lazy('ajax_chained_models'), 65 | empty_label=_('Select a car model'), model=BrandModel, required=True) 66 | engine = forms.ChoiceField(choices=([('', _('All engine types'))] + Car.ENGINES), required=False) 67 | color = ChainedChoiceField(parent_field='model', ajax_url=reverse_lazy('ajax_chained_colors'), 68 | empty_label=_('Select a car model'), required=False) 69 | 70 | class Meta: 71 | model = Car 72 | 73 | 74 | Notice that ajax URLs could differ of each field for different purposes. See example project for more use cases. 75 | 76 | In order to pre-populate child fields, the form can need to have access to the current user. This can be done by passing 77 | the user to the kwargs of the form's __init__() method in the form's view. The ChainedSelectFormViewMixin takes care 78 | of this for you.:: 79 | 80 | class CreateCarView(ChainedSelectFormViewMixin, CreateView) 81 | template_name = "create_car.html" 82 | form_class = ModelChainForm 83 | model = Car 84 | 85 | Views 86 | ''''' 87 | 88 | Ajax call is made whenever the parent field is changed. You must set up the ajax URL to return json list of lists:: 89 | 90 | class AjaxChainedView(BaseDetailView): 91 | """ 92 | View to handle the ajax request for the field options. 93 | """ 94 | 95 | def get(self, request, *args, **kwargs): 96 | field = request.GET.get('field') 97 | parent_value = request.GET.get("parent_value") 98 | 99 | vals_list = [] 100 | for x in range(1, 6): 101 | vals_list.append(x*int(parent_value)) 102 | 103 | choices = tuple(zip(vals_list, vals_list)) 104 | 105 | response = HttpResponse( 106 | json.dumps(choices, cls=DjangoJSONEncoder), 107 | mimetype='application/javascript' 108 | ) 109 | add_never_cache_headers(response) 110 | return response 111 | 112 | 113 | Or you can use ``ChainedSelectChoicesView`` class helper like this:: 114 | 115 | class AjaxChainedView(ChainedSelectChoicesView): 116 | def get_choices(self): 117 | vals_list = [] 118 | for x in range(1, 6): 119 | vals_list.append(x*int(self.parent_value)) 120 | return tuple(zip(vals_list, vals_list)) 121 | 122 | or like this:: 123 | 124 | class AjaxChainedView(ChainedSelectChoicesView): 125 | def get_child_set(self): 126 | return ChildModel.object.filter(parent_id=self.parent_value) 127 | 128 | Don't forget to update your urls.py:: 129 | 130 | url(r'^ajax/custom-chained-view-url/$', AjaxChainedView.as_view(), name='ajax_chained_view'), 131 | 132 | Authors 133 | ------- 134 | 135 | Library is by `Erik Telepovsky` from `Pragmatic Mates`_. See `our other libraries`_. 136 | 137 | .. _Pragmatic Mates: http://www.pragmaticmates.com/ 138 | .. _our other libraries: https://github.com/PragmaticMates -------------------------------------------------------------------------------- /clever_selects/__init__.py: -------------------------------------------------------------------------------- 1 | VERSION='1.1.0' 2 | -------------------------------------------------------------------------------- /clever_selects/admin.py: -------------------------------------------------------------------------------- 1 | 2 | class ChainedSelectAdminMixin(object): 3 | 4 | def get_form(self, request, obj=None, **kwargs): 5 | form = super(ChainedSelectAdminMixin, self).get_form(request, obj, **kwargs) 6 | if request.user: 7 | form.user = request.user 8 | return form 9 | -------------------------------------------------------------------------------- /clever_selects/form_fields.py: -------------------------------------------------------------------------------- 1 | from __future__ import absolute_import 2 | 3 | from django.core import validators 4 | from django.core.exceptions import ValidationError 5 | from django.forms import ChoiceField 6 | from django.forms.models import ModelChoiceField, ModelMultipleChoiceField 7 | 8 | from .widgets import ChainedSelect, ChainedSelectMultiple 9 | 10 | 11 | class ChainedChoiceField(ChoiceField): 12 | def __init__(self, parent_field, ajax_url, choices=None, empty_label='--------', *args, **kwargs): 13 | self.parent_field = parent_field 14 | self.ajax_url = ajax_url 15 | self.choices = choices or (('', empty_label), ) 16 | self.empty_label = empty_label 17 | 18 | defaults = { 19 | 'widget': ChainedSelect(parent_field=parent_field, ajax_url=ajax_url, attrs={'empty_label': empty_label}), 20 | } 21 | defaults.update(kwargs) 22 | 23 | super(ChainedChoiceField, self).__init__(choices=self.choices, *args, **defaults) 24 | 25 | def valid_value(self, value): 26 | """Dynamic choices so just return True for now""" 27 | return True 28 | 29 | 30 | class ChainedModelChoiceField(ModelChoiceField): 31 | def __init__(self, parent_field, ajax_url, model, empty_label='--------', *args, **kwargs): 32 | self.parent_field = parent_field 33 | self.ajax_url = ajax_url 34 | self.model = model 35 | # self.queryset = model.objects.all() # Large querysets could take long time to load all values (django-cities) 36 | self.queryset = model.objects.none() 37 | self.empty_label = empty_label 38 | 39 | defaults = { 40 | 'widget': ChainedSelect(parent_field=parent_field, ajax_url=ajax_url, attrs={'empty_label': empty_label}), 41 | } 42 | defaults.update(kwargs) 43 | 44 | super(ChainedModelChoiceField, self).__init__(queryset=self.queryset, empty_label=empty_label, *args, **defaults) 45 | 46 | def valid_value(self, value): 47 | """Dynamic choices so just return True for now""" 48 | return True 49 | 50 | def to_python(self, value): 51 | empty_values = getattr(self, 'empty_values', list(validators.EMPTY_VALUES)) 52 | if value in empty_values: 53 | return None 54 | try: 55 | key = self.to_field_name or 'pk' 56 | value = self.model.objects.get(**{key: value}) 57 | except (ValueError, self.queryset.model.DoesNotExist): 58 | raise ValidationError(self.error_messages['invalid_choice'], code='invalid_choice') 59 | return value 60 | 61 | def validate(self, value): 62 | """ 63 | Validates that the input is in self.choices. 64 | """ 65 | super(ChoiceField, self).validate(value) 66 | if value and not self.valid_value(value): 67 | raise ValidationError( 68 | self.error_messages['invalid_choice'], 69 | code='invalid_choice', 70 | params={'value': value}, 71 | ) 72 | 73 | 74 | class ChainedModelMultipleChoiceField(ModelMultipleChoiceField): 75 | def __init__(self, parent_field, ajax_url, model, *args, **kwargs): 76 | self.parent_field = parent_field 77 | self.ajax_url = ajax_url 78 | self.model = model 79 | self.queryset = model.objects.all() 80 | 81 | defaults = { 82 | 'widget': ChainedSelectMultiple(parent_field=parent_field, ajax_url=ajax_url), 83 | } 84 | defaults.update(kwargs) 85 | 86 | super(ChainedModelMultipleChoiceField, self).__init__(queryset=self.queryset, *args, **defaults) 87 | -------------------------------------------------------------------------------- /clever_selects/forms.py: -------------------------------------------------------------------------------- 1 | from __future__ import absolute_import 2 | 3 | import json 4 | 5 | from django import forms 6 | from django.contrib.auth.models import AnonymousUser 7 | from django.core.exceptions import ObjectDoesNotExist 8 | 9 | try: 10 | from django.urls import reverse, resolve 11 | except: 12 | from django.core.urlresolvers import reverse, resolve 13 | 14 | from django.core.validators import EMPTY_VALUES 15 | from django.db import models 16 | from django.http.request import HttpRequest 17 | from django.utils.encoding import smart_str, force_str 18 | 19 | from .form_fields import ChainedChoiceField, ChainedModelChoiceField, ChainedModelMultipleChoiceField 20 | 21 | 22 | class ChainedChoicesMixin(object): 23 | """ 24 | Form Mixin to be used with ChainedChoicesForm and ChainedChoicesModelForm. 25 | It loads the options when there is already an instance or initial data. 26 | """ 27 | user = None 28 | prefix = None 29 | fields = [] 30 | chained_fields_names = [] 31 | chained_model_fields_names = [] 32 | 33 | def init_chained_choices(self, *args, **kwargs): 34 | self.chained_fields_names = self.get_fields_names_by_type(ChainedChoiceField) 35 | self.chained_model_fields_names = self.get_fields_names_by_type(ChainedModelChoiceField) + self.get_fields_names_by_type(ChainedModelMultipleChoiceField) 36 | self.user = kwargs.get('user', self.user) 37 | 38 | if kwargs.get('data', None) is not None: 39 | self.set_choices_via_ajax(kwargs['data']) 40 | 41 | elif len(args) > 0 and args[0] not in EMPTY_VALUES: 42 | self.set_choices_via_ajax(args[0]) 43 | 44 | elif kwargs.get('instance', None) is not None: 45 | oldest_parent_field_names = list(set(self.get_oldest_parent_field_names())) 46 | youngest_child_names = list(set(self.get_youngest_children_field_names())) 47 | 48 | for youngest_child_name in youngest_child_names: 49 | self.find_instance_attr(kwargs['instance'], youngest_child_name) 50 | 51 | for oldest_parent_field_name in oldest_parent_field_names: 52 | try: 53 | self.fields[oldest_parent_field_name].initial = getattr(self, '%s' % oldest_parent_field_name) 54 | except AttributeError: 55 | pass 56 | 57 | self.set_choices_via_ajax() 58 | 59 | elif 'initial' in kwargs and kwargs['initial'] not in EMPTY_VALUES: 60 | self.set_choices_via_ajax(kwargs['initial'], is_initial=True) 61 | else: 62 | for field_name in self.chained_fields_names + self.chained_model_fields_names: 63 | empty_label = self.fields[field_name].empty_label 64 | self.fields[field_name].choices = [('', empty_label)] 65 | 66 | def set_choices_via_ajax(self, kwargs=None, is_initial=False): 67 | for field_name in self.chained_fields_names + self.chained_model_fields_names: 68 | field = self.fields[field_name] 69 | 70 | try: 71 | if kwargs is not None: 72 | # initial data do not have any prefix 73 | if self.prefix in EMPTY_VALUES or is_initial: 74 | parent_value = kwargs.get(field.parent_field, None) 75 | field_value = kwargs.get(field_name, None) 76 | else: 77 | parent_value = kwargs.get('%s-%s' % (self.prefix, field.parent_field), None) 78 | field_value = kwargs.get('%s-%s' % (self.prefix, field_name), None) 79 | else: 80 | parent_value = self.initial.get(field.parent_field, None) 81 | field_value = self.initial.get(field_name, None) 82 | 83 | if parent_value is None: 84 | parent_value = getattr(self, '%s' % field.parent_field, None) 85 | 86 | if field_value is None: 87 | field_value = getattr(self, '%s' % field_name, None) 88 | 89 | field.choices = [('', field.empty_label)] 90 | 91 | # check that parent_value is valid 92 | if parent_value: 93 | parent_value = getattr(parent_value, 'pk', parent_value) 94 | 95 | url = force_str(field.ajax_url) 96 | params = { 97 | 'field_name': field_name, 98 | 'parent_value': parent_value, 99 | 'field_value': field_value 100 | } 101 | 102 | # This will get the callable from the url. 103 | # All we need to do is pass in a 'request' 104 | url_callable = resolve(url).func 105 | 106 | # Build the fake request 107 | fake_request = HttpRequest() 108 | fake_request.META["SERVER_NAME"] = "localhost" 109 | fake_request.META["SERVER_PORT"] = '80' 110 | 111 | # Add parameters and user if supplied 112 | fake_request.method = "GET" 113 | for key, value in params.items(): 114 | fake_request.GET[key] = value 115 | 116 | if hasattr(self, "user") and self.user: 117 | fake_request.user = self.user 118 | else: 119 | fake_request.user = AnonymousUser() 120 | 121 | # Get the response 122 | response = url_callable(fake_request) 123 | 124 | # Apply the data (if it's returned) 125 | if smart_str(response.content): 126 | try: 127 | field.choices += json.loads(smart_str(response.content)) 128 | except ValueError: 129 | raise ValueError('Data returned from request (url={url}, params={params}) could not be deserialized to Python object: {data}'.format( 130 | url=url, 131 | params=params, 132 | data=response.content 133 | )) 134 | 135 | field.initial = field_value 136 | 137 | except ObjectDoesNotExist: 138 | field.choices = () 139 | 140 | def get_fields_names_by_type(self, type_): 141 | result = [] 142 | for field_name in self.fields: 143 | field = self.fields[field_name] 144 | if isinstance(field, type_): 145 | result.append(field_name) 146 | return result 147 | 148 | def get_parent_fields_names(self): 149 | result = [] 150 | for field_name in self.fields: 151 | field = self.fields[field_name] 152 | if hasattr(field, 'parent_field'): 153 | result.append(field.parent_field) 154 | return result 155 | 156 | def get_children_field_names(self, parent_name): 157 | if parent_name in EMPTY_VALUES: 158 | return [] 159 | result = [] 160 | for field_name in self.fields: 161 | field = self.fields[field_name] 162 | if getattr(field, 'parent_field', None) == parent_name: 163 | result.append(field_name) 164 | return result 165 | 166 | def get_chained_fields_names(self): 167 | chained_fields_names = self.get_fields_names_by_type(ChainedChoiceField) 168 | chained_model_fields_names = self.get_fields_names_by_type(ChainedModelChoiceField) 169 | return chained_fields_names + chained_model_fields_names 170 | 171 | def get_oldest_parent_field_names(self): 172 | chained_fields_names = self.get_fields_names_by_type(ChainedChoiceField) 173 | chained_model_fields_names = self.get_fields_names_by_type(ChainedModelChoiceField) 174 | 175 | oldest_parent_field_names = [] 176 | for field_name in self.get_parent_fields_names(): 177 | if field_name not in chained_fields_names and field_name not in chained_model_fields_names: 178 | oldest_parent_field_names.append(field_name) 179 | return oldest_parent_field_names 180 | 181 | def get_youngest_children_field_names(self): 182 | result = [] 183 | chained_fields_names = self.get_fields_names_by_type(ChainedChoiceField) 184 | chained_model_fields_names = self.get_fields_names_by_type(ChainedModelChoiceField) 185 | 186 | for field_name in chained_fields_names + chained_model_fields_names: 187 | if field_name not in self.get_parent_fields_names(): 188 | result.append(field_name) 189 | return result 190 | 191 | def find_instance_attr(self, instance, attr_name): 192 | field = self.fields[attr_name] 193 | if hasattr(instance, attr_name): 194 | attribute = getattr(instance, attr_name) 195 | attr_value = getattr(attribute, 'pk', smart_str(attribute)) if attribute else None 196 | setattr(self, '%s' % attr_name, attr_value) 197 | 198 | if hasattr(field, 'parent_field'): 199 | parent_instance = attribute if isinstance(attribute, models.Model) else instance 200 | self.find_instance_attr(parent_instance, field.parent_field) 201 | 202 | 203 | class ChainedChoicesForm(forms.Form, ChainedChoicesMixin): 204 | """ 205 | Form class to be used with ChainedChoiceField and ChainedSelect widget 206 | If there is request POST data in *args (i.e. form validation was invalid) 207 | then the options will be loaded when the form is built. 208 | """ 209 | 210 | def __init__(self, language_code=None, *args, **kwargs): 211 | if kwargs.get('user'): 212 | self.user = kwargs.pop('user') # To get request.user. Do not use kwargs.pop('user', None) due to potential security hole 213 | super(ChainedChoicesForm, self).__init__(*args, **kwargs) 214 | self.language_code = language_code 215 | self.init_chained_choices(*args, **kwargs) 216 | 217 | def is_valid(self): 218 | if self.language_code: 219 | # response is not translated to requested language code :/ 220 | # so translation is triggered manually 221 | from django.utils.translation import activate 222 | activate(self.language_code) 223 | return super(ChainedChoicesForm, self).is_valid() 224 | 225 | 226 | class ChainedChoicesModelForm(forms.ModelForm, ChainedChoicesMixin): 227 | """ 228 | Form class to be used with ChainedChoiceField and ChainedSelect widget 229 | If there is already an instance (i.e. editing) 230 | then the options will be loaded when the form is built. 231 | """ 232 | 233 | def __init__(self, *args, **kwargs): 234 | if kwargs.get('user'): 235 | self.user = kwargs.pop('user') # To get request.user. Do not use kwargs.pop('user', None) due to potential security hole 236 | super(ChainedChoicesModelForm, self).__init__(*args, **kwargs) 237 | self.language_code = kwargs.get('language_code', None) 238 | self.init_chained_choices(*args, **kwargs) 239 | 240 | def is_valid(self): 241 | if self.language_code: 242 | # response is not translated to requested language code :/ 243 | # so translation is triggered manually 244 | from django.utils.translation import activate 245 | activate(self.language_code) 246 | return super(ChainedChoicesModelForm, self).is_valid() 247 | -------------------------------------------------------------------------------- /clever_selects/static/js/clever-selects.js: -------------------------------------------------------------------------------- 1 | function loadChildChoices(parentField, child) { 2 | var valueField = child; 3 | var ajaxUrl = valueField.getAttribute("ajax_url"); 4 | var emptyLabel = valueField.getAttribute('empty_label') || '--------'; 5 | 6 | var headers = new Headers(); 7 | headers.append("Accept", "application/json"); 8 | 9 | var request = new Request( 10 | ajaxUrl + "?field=" + valueField.getAttribute("name") + "&parent_field=" + parentField.getAttribute("name") + "&parent_value=" + parentField.value, 11 | { 12 | method: "GET", 13 | headers: headers, 14 | credentials: 'same-origin' 15 | } 16 | ); 17 | 18 | fetch(request).then(function(response) { 19 | return response.json(); 20 | }).then(function(options) { 21 | var optionsHTML = ""; 22 | 23 | if (!child[0].hasAttribute("multiple")) { 24 | optionsHTML += ''; 25 | } 26 | 27 | options.forEach(function(option) { 28 | optionsHTML += ''; 29 | }); 30 | 31 | valueField.innerHTML = optionsHTML; 32 | valueField.dispatchEvent(new Event("change")); 33 | valueField.dispatchEvent(new Event("load")); 34 | valueField.dispatchEvent(new Event("liszt:updated")); // support for chosen versions < 1.0.0 35 | valueField.dispatchEvent(new Event("chosen:updated")); // support for chosen versions >= 1.0.0 36 | }); 37 | }; 38 | 39 | function loadAllChainedChoices(parentField) { 40 | var chained_ids = parentField.getAttribute('chained_ids').split(","); 41 | 42 | chained_ids.forEach(function(chained_id) { 43 | var child = document.getElementById(chained_id); 44 | loadChildChoices(parentField, child); 45 | }); 46 | }; 47 | 48 | 49 | document.addEventListener("DOMContentLoaded", function() { 50 | var parentFields = document.querySelectorAll(".chained-parent-field"); 51 | 52 | parentFields.forEach(function(parentField) { 53 | if ( parentField.classList.contains('chzn-done') ) { 54 | $(parentField).change(function() { 55 | loadAllChainedChoices(this); 56 | }); 57 | } else { 58 | parentField.addEventListener("change", function() { loadAllChainedChoices(this); }); 59 | } 60 | }); 61 | }); -------------------------------------------------------------------------------- /clever_selects/templates/clever_selects/widgets/chained_select.html: -------------------------------------------------------------------------------- 1 | {% include "django/forms/widgets/select.html" %} 2 | 19 | -------------------------------------------------------------------------------- /clever_selects/templatetags/__init__.py: -------------------------------------------------------------------------------- 1 | __author__ = 'Erik Telepovsky' 2 | -------------------------------------------------------------------------------- /clever_selects/templatetags/clever_selects_extras.py: -------------------------------------------------------------------------------- 1 | import logging 2 | 3 | from django import template 4 | from django.middleware.csrf import get_token 5 | from django.conf import settings 6 | from django.core.files.storage import get_storage_class 7 | from django.utils.safestring import mark_safe 8 | 9 | from clever_selects import VERSION 10 | 11 | staticfiles_storage = get_storage_class(settings.STATICFILES_STORAGE)() 12 | 13 | register = template.Library() 14 | 15 | log = logging.getLogger('clever_selects') 16 | 17 | 18 | @register.simple_tag(takes_context=True) 19 | def clever_selects_js_import(context, csrf=True): 20 | """ Return the js script tag for the clever-selects.js file. 21 | If the csrf argument is present and it's ``nocsrf`` clever-selects will not 22 | try to mark the request as if it need the csrf token. By default use 23 | the clever_selects_js_import template tag will make django set the csrftoken 24 | cookie on the current request.""" 25 | 26 | csrf = csrf != 'nocsrf' 27 | request = context.get('request') 28 | 29 | if request and csrf: 30 | get_token(request) 31 | elif csrf: 32 | log.warning("The 'request' object must be accessible within the context. " 33 | "You must add 'django.contrib.messages.context_processors.request' " 34 | "to your TEMPLATE_CONTEXT_PROCESSORS and render your views using a RequestContext.") 35 | 36 | url = staticfiles_storage.url('js/clever-selects.js') 37 | return mark_safe('' % (url, VERSION)) 38 | -------------------------------------------------------------------------------- /clever_selects/views.py: -------------------------------------------------------------------------------- 1 | ''' 2 | @author: Erik Telepovsky 3 | ''' 4 | 5 | import json 6 | 7 | from django.core.exceptions import ObjectDoesNotExist 8 | from django.core.validators import EMPTY_VALUES 9 | from django.core.serializers.json import DjangoJSONEncoder 10 | from django.http import HttpResponse 11 | from django.utils.cache import add_never_cache_headers 12 | from django.views.generic.base import View 13 | 14 | 15 | class ChainedSelectFormViewMixin(object): 16 | 17 | def get_form_kwargs(self): 18 | kwargs = super(ChainedSelectFormViewMixin, self).get_form_kwargs() 19 | kwargs.update({'user': self.request.user}) 20 | return kwargs 21 | 22 | 23 | class ChainedSelectChoicesView(View): 24 | child_set = None 25 | 26 | def dispatch(self, request, *args, **kwargs): 27 | self.field = request.GET.get("field") 28 | self.field_value = request.GET.get("field_value", None) 29 | self.parent_field = request.GET.get("parent_field") 30 | self.parent_value = request.GET.get("parent_value") 31 | if self.parent_value in EMPTY_VALUES + ('None', ): 32 | return self.empty_response() 33 | return super(ChainedSelectChoicesView, self).dispatch(request, *args, **kwargs) 34 | 35 | def get(self, request, *args, **kwargs): 36 | response = HttpResponse( 37 | json.dumps(self.get_choices(), cls=DjangoJSONEncoder), 38 | content_type='application/javascript' 39 | ) 40 | add_never_cache_headers(response) 41 | return response 42 | 43 | def empty_response(self): 44 | response = HttpResponse( 45 | json.dumps((), cls=DjangoJSONEncoder), 46 | content_type='application/javascript' 47 | ) 48 | add_never_cache_headers(response) 49 | return response 50 | 51 | def get_child_set(self): 52 | return self.child_set 53 | 54 | def get_choices(self): 55 | choices = [] 56 | if self.parent_value in EMPTY_VALUES + ('None', ) or self.get_child_set() is None: 57 | return [] 58 | try: 59 | for obj in self.get_child_set().all(): 60 | choices.append((obj.pk, str(obj))) 61 | return choices 62 | except ObjectDoesNotExist: 63 | return [] 64 | -------------------------------------------------------------------------------- /clever_selects/widgets.py: -------------------------------------------------------------------------------- 1 | from django.forms.widgets import Select, SelectMultiple 2 | 3 | 4 | class ChainedSelectMixin(object): 5 | """ 6 | A ChoiceField widget mixin where the options for the select are dependent on the value of the parent select field. 7 | When the parent field is changed, an ajax call is made to determine the options. 8 | 9 | Form must inherit from ChainedChoicesMixin (or from helper forms ChainedChoicesForm and ChainedChoicesModelForm) 10 | which loads the options when there is already an instance or initial data. 11 | """ 12 | 13 | template_name = 'clever_selects/widgets/chained_select.html' 14 | 15 | def __init__(self, parent_field=None, ajax_url=None, *args, **kwargs): 16 | self.parent_field = parent_field 17 | self.ajax_url = ajax_url 18 | super(ChainedSelectMixin, self).__init__(*args, **kwargs) 19 | 20 | def get_context(self, name, value, attrs): 21 | context = super(ChainedSelectMixin, self).get_context(name, value, attrs) 22 | 23 | field_prefix = attrs['id'][:attrs['id'].rfind('-') + 1] 24 | 25 | if not field_prefix: 26 | parent_field_id = "id_" + self.parent_field 27 | else: 28 | parent_field_id = field_prefix + self.parent_field 29 | 30 | context['widget']['attrs']['ajax_url'] = self.ajax_url 31 | context['js_parent_field_id'] = parent_field_id 32 | context['js_chained_id'] = attrs['id'] 33 | return context 34 | 35 | 36 | class ChainedSelect(ChainedSelectMixin, Select): 37 | pass 38 | 39 | 40 | class ChainedSelectMultiple(ChainedSelectMixin, SelectMultiple): 41 | pass 42 | -------------------------------------------------------------------------------- /example/clever_selects: -------------------------------------------------------------------------------- 1 | ../clever_selects -------------------------------------------------------------------------------- /example/example/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/PragmaticMates/django-clever-selects/6b54da0f87a2193cf1fdae4b21945ac0979411a7/example/example/__init__.py -------------------------------------------------------------------------------- /example/example/admin.py: -------------------------------------------------------------------------------- 1 | from django.contrib import admin 2 | 3 | from models import CarBrand, BrandModel, Car 4 | 5 | 6 | class ModelInlineAdmin(admin.TabularInline): 7 | model = BrandModel 8 | extra = 2 9 | 10 | 11 | class CarBrandAdmin(admin.ModelAdmin): 12 | inlines = [ModelInlineAdmin, ] 13 | 14 | 15 | class BrandModelAdmin(admin.ModelAdmin): 16 | list_display = ('brand', 'title') 17 | list_filter = ('brand', ) 18 | 19 | 20 | class CarAdmin(admin.ModelAdmin): 21 | list_display = ('__str__', 'engine', 'color', 'numberplate') 22 | list_filter = ('model', ) 23 | 24 | 25 | admin.site.register(CarBrand, CarBrandAdmin) 26 | admin.site.register(BrandModel, BrandModelAdmin) 27 | admin.site.register(Car, CarAdmin) 28 | -------------------------------------------------------------------------------- /example/example/fixtures/initial_data.json: -------------------------------------------------------------------------------- 1 | [{"pk": 2, "model": "example.carbrand", "fields": {"created": "2014-01-08T10:10:49.752Z", "modified": "2014-01-08T10:17:33.856Z", "title": "Audi"}}, {"pk": 3, "model": "example.carbrand", "fields": {"created": "2014-01-08T10:20:16.322Z", "modified": "2014-01-08T10:22:19.863Z", "title": "BMW"}}, {"pk": 4, "model": "example.carbrand", "fields": {"created": "2014-01-08T10:22:56.626Z", "modified": "2014-01-08T10:22:56.626Z", "title": "Jaguar"}}, {"pk": 5, "model": "example.carbrand", "fields": {"created": "2014-01-08T10:24:14.484Z", "modified": "2014-01-08T10:24:14.484Z", "title": "Lexus"}}, {"pk": 6, "model": "example.carbrand", "fields": {"created": "2014-01-08T10:26:57.024Z", "modified": "2014-01-08T10:26:57.024Z", "title": "Porsche"}}, {"pk": 7, "model": "example.carbrand", "fields": {"created": "2014-01-08T10:27:55.739Z", "modified": "2014-01-08T10:27:55.739Z", "title": "\u0160koda"}}, {"pk": 12, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.755Z", "modified": "2014-01-08T10:10:49.755Z", "title": "A1"}}, {"pk": 13, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.756Z", "modified": "2014-01-08T10:10:49.756Z", "title": "A1 Sportback"}}, {"pk": 14, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.757Z", "modified": "2014-01-08T10:10:49.757Z", "title": "A3"}}, {"pk": 15, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.758Z", "modified": "2014-01-08T10:10:49.758Z", "title": "A3 Cabriolet"}}, {"pk": 16, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.759Z", "modified": "2014-01-08T10:10:49.759Z", "title": "A3 Sportback"}}, {"pk": 17, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.760Z", "modified": "2014-01-08T10:10:49.760Z", "title": "A4"}}, {"pk": 18, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.760Z", "modified": "2014-01-08T10:10:49.760Z", "title": "A4 Allroad Quattro"}}, {"pk": 19, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.761Z", "modified": "2014-01-08T10:10:49.761Z", "title": "A4 Avant"}}, {"pk": 20, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.762Z", "modified": "2014-01-08T10:10:49.762Z", "title": "A5 Cabriolet"}}, {"pk": 21, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.762Z", "modified": "2014-01-08T10:10:49.762Z", "title": "A5 Coupe"}}, {"pk": 22, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:10:49.763Z", "modified": "2014-01-08T10:10:49.763Z", "title": "A5 Sportback"}}, {"pk": 23, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.590Z", "modified": "2014-01-08T10:14:32.590Z", "title": "A6"}}, {"pk": 24, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.591Z", "modified": "2014-01-08T10:14:32.591Z", "title": "A6 Allroad quattro"}}, {"pk": 25, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.592Z", "modified": "2014-01-08T10:14:32.592Z", "title": "A6 Avant"}}, {"pk": 26, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.592Z", "modified": "2014-01-08T10:14:32.592Z", "title": "A7"}}, {"pk": 27, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.593Z", "modified": "2014-01-08T10:14:32.593Z", "title": "A7 Sportback"}}, {"pk": 28, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.593Z", "modified": "2014-01-08T10:14:32.593Z", "title": "A8"}}, {"pk": 29, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.594Z", "modified": "2014-01-08T10:14:32.594Z", "title": "A8 L"}}, {"pk": 30, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.595Z", "modified": "2014-01-08T10:14:32.595Z", "title": "A8 L W12"}}, {"pk": 31, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.595Z", "modified": "2014-01-08T10:14:32.595Z", "title": "Q3"}}, {"pk": 32, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.596Z", "modified": "2014-01-08T10:14:32.596Z", "title": "Q5"}}, {"pk": 33, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.596Z", "modified": "2014-01-08T10:14:32.596Z", "title": "Q7"}}, {"pk": 34, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.597Z", "modified": "2014-01-08T10:14:32.597Z", "title": "Q7 W12 TDI"}}, {"pk": 35, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:14:32.597Z", "modified": "2014-01-08T10:14:32.597Z", "title": "R8 Coupe"}}, {"pk": 36, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.890Z", "modified": "2014-01-08T10:17:33.890Z", "title": "R8 Spyder"}}, {"pk": 37, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.891Z", "modified": "2014-01-08T10:17:33.891Z", "title": "RS3 Sportback"}}, {"pk": 38, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.891Z", "modified": "2014-01-08T10:17:33.891Z", "title": "S3"}}, {"pk": 39, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.892Z", "modified": "2014-01-08T10:17:33.892Z", "title": "S3 Sportback"}}, {"pk": 40, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.892Z", "modified": "2014-01-08T10:17:33.892Z", "title": "S4"}}, {"pk": 41, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.893Z", "modified": "2014-01-08T10:17:33.893Z", "title": "S5 Cabriolet"}}, {"pk": 42, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.893Z", "modified": "2014-01-08T10:17:33.893Z", "title": "S5 Coupe"}}, {"pk": 43, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.894Z", "modified": "2014-01-08T10:17:33.894Z", "title": "S5 Sportback"}}, {"pk": 44, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.894Z", "modified": "2014-01-08T10:17:33.894Z", "title": "S6"}}, {"pk": 45, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.895Z", "modified": "2014-01-08T10:17:33.895Z", "title": "S6 Avant"}}, {"pk": 46, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.895Z", "modified": "2014-01-08T10:17:33.895Z", "title": "S8"}}, {"pk": 47, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.896Z", "modified": "2014-01-08T10:17:33.896Z", "title": "TT"}}, {"pk": 48, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.896Z", "modified": "2014-01-08T10:17:33.896Z", "title": "TT Coupe"}}, {"pk": 50, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.897Z", "modified": "2014-01-08T10:17:33.897Z", "title": "TT RS Coupe"}}, {"pk": 51, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.898Z", "modified": "2014-01-08T10:17:33.898Z", "title": "TT RS Roadster"}}, {"pk": 49, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.897Z", "modified": "2014-01-08T10:17:33.897Z", "title": "TT Roadster"}}, {"pk": 52, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.898Z", "modified": "2014-01-08T10:17:33.898Z", "title": "TTS Coupe"}}, {"pk": 53, "model": "example.brandmodel", "fields": {"brand": 2, "created": "2014-01-08T10:17:33.899Z", "modified": "2014-01-08T10:17:33.899Z", "title": "TTS Roadster"}}, {"pk": 54, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.324Z", "modified": "2014-01-08T10:20:16.324Z", "title": "1 3-door"}}, {"pk": 55, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.325Z", "modified": "2014-01-08T10:20:16.325Z", "title": "1 5-door"}}, {"pk": 56, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.326Z", "modified": "2014-01-08T10:20:16.326Z", "title": "1 Cabrio"}}, {"pk": 57, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.327Z", "modified": "2014-01-08T10:20:16.327Z", "title": "1 Coupe"}}, {"pk": 58, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.327Z", "modified": "2014-01-08T10:20:16.327Z", "title": "3 Cabrio"}}, {"pk": 59, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.328Z", "modified": "2014-01-08T10:20:16.328Z", "title": "3 Coupe"}}, {"pk": 60, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.328Z", "modified": "2014-01-08T10:20:16.328Z", "title": "3 Sedan"}}, {"pk": 61, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.329Z", "modified": "2014-01-08T10:20:16.329Z", "title": "3 Touring"}}, {"pk": 62, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.329Z", "modified": "2014-01-08T10:20:16.329Z", "title": "4 Cabrio"}}, {"pk": 63, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.329Z", "modified": "2014-01-08T10:20:16.330Z", "title": "4 Coupe"}}, {"pk": 64, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.330Z", "modified": "2014-01-08T10:20:16.330Z", "title": "5 ActiveHybrid"}}, {"pk": 65, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.330Z", "modified": "2014-01-08T10:20:16.330Z", "title": "5 Gran Turismo"}}, {"pk": 66, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.331Z", "modified": "2014-01-08T10:20:16.331Z", "title": "5 Sedan"}}, {"pk": 67, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.331Z", "modified": "2014-01-08T10:20:16.331Z", "title": "5 Touring"}}, {"pk": 68, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.332Z", "modified": "2014-01-08T10:20:16.332Z", "title": "6 Cabrio"}}, {"pk": 69, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.332Z", "modified": "2014-01-08T10:20:16.332Z", "title": "6 Coupe"}}, {"pk": 70, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.333Z", "modified": "2014-01-08T10:20:16.333Z", "title": "6 Gran Coupe"}}, {"pk": 71, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:20:16.333Z", "modified": "2014-01-08T10:20:16.333Z", "title": "7 ActiveHybrid"}}, {"pk": 72, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.887Z", "modified": "2014-01-08T10:22:19.887Z", "title": "7 Sedan"}}, {"pk": 73, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.888Z", "modified": "2014-01-08T10:22:19.888Z", "title": "M3 Cabrio"}}, {"pk": 74, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.889Z", "modified": "2014-01-08T10:22:19.889Z", "title": "M3 Coupe"}}, {"pk": 75, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.889Z", "modified": "2014-01-08T10:22:19.889Z", "title": "M3 Sedan"}}, {"pk": 76, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.890Z", "modified": "2014-01-08T10:22:19.890Z", "title": "M5 Sedan"}}, {"pk": 77, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.891Z", "modified": "2014-01-08T10:22:19.891Z", "title": "M6 Cabrio"}}, {"pk": 78, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.891Z", "modified": "2014-01-08T10:22:19.891Z", "title": "M6 Coupe"}}, {"pk": 79, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.892Z", "modified": "2014-01-08T10:22:19.892Z", "title": "X1"}}, {"pk": 80, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.892Z", "modified": "2014-01-08T10:22:19.892Z", "title": "X3"}}, {"pk": 81, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.893Z", "modified": "2014-01-08T10:22:19.893Z", "title": "X5"}}, {"pk": 82, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.893Z", "modified": "2014-01-08T10:22:19.893Z", "title": "X5 M"}}, {"pk": 83, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.894Z", "modified": "2014-01-08T10:22:19.894Z", "title": "X6"}}, {"pk": 84, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.895Z", "modified": "2014-01-08T10:22:19.895Z", "title": "X6 M"}}, {"pk": 85, "model": "example.brandmodel", "fields": {"brand": 3, "created": "2014-01-08T10:22:19.895Z", "modified": "2014-01-08T10:22:19.895Z", "title": "Z4"}}, {"pk": 86, "model": "example.brandmodel", "fields": {"brand": 4, "created": "2014-01-08T10:22:56.628Z", "modified": "2014-01-08T10:22:56.628Z", "title": "XF"}}, {"pk": 87, "model": "example.brandmodel", "fields": {"brand": 4, "created": "2014-01-08T10:22:56.629Z", "modified": "2014-01-08T10:22:56.629Z", "title": "XJ"}}, {"pk": 88, "model": "example.brandmodel", "fields": {"brand": 4, "created": "2014-01-08T10:22:56.630Z", "modified": "2014-01-08T10:22:56.630Z", "title": "XK"}}, {"pk": 89, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.485Z", "modified": "2014-01-08T10:24:14.485Z", "title": "CT"}}, {"pk": 90, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.487Z", "modified": "2014-01-08T10:24:14.487Z", "title": "CT Hybrid"}}, {"pk": 91, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.487Z", "modified": "2014-01-08T10:24:14.487Z", "title": "GS"}}, {"pk": 92, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.488Z", "modified": "2014-01-08T10:24:14.488Z", "title": "GS Hybrid"}}, {"pk": 93, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.488Z", "modified": "2014-01-08T10:24:14.488Z", "title": "IS"}}, {"pk": 94, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.490Z", "modified": "2014-01-08T10:24:14.490Z", "title": "IS 250 C"}}, {"pk": 95, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.490Z", "modified": "2014-01-08T10:24:14.490Z", "title": "IS F"}}, {"pk": 96, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.491Z", "modified": "2014-01-08T10:24:14.491Z", "title": "LS"}}, {"pk": 97, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.492Z", "modified": "2014-01-08T10:24:14.492Z", "title": "LS Hybrid"}}, {"pk": 98, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.492Z", "modified": "2014-01-08T10:24:14.492Z", "title": "RX"}}, {"pk": 99, "model": "example.brandmodel", "fields": {"brand": 5, "created": "2014-01-08T10:24:14.493Z", "modified": "2014-01-08T10:24:14.493Z", "title": "RX Hybrid"}}, {"pk": 100, "model": "example.brandmodel", "fields": {"brand": 6, "created": "2014-01-08T10:26:57.029Z", "modified": "2014-01-08T10:26:57.029Z", "title": "911"}}, {"pk": 101, "model": "example.brandmodel", "fields": {"brand": 6, "created": "2014-01-08T10:26:57.031Z", "modified": "2014-01-08T10:26:57.031Z", "title": "Boxter"}}, {"pk": 102, "model": "example.brandmodel", "fields": {"brand": 6, "created": "2014-01-08T10:26:57.032Z", "modified": "2014-01-08T10:26:57.032Z", "title": "Cayanne"}}, {"pk": 103, "model": "example.brandmodel", "fields": {"brand": 6, "created": "2014-01-08T10:26:57.033Z", "modified": "2014-01-08T10:26:57.033Z", "title": "Cayman"}}, {"pk": 104, "model": "example.brandmodel", "fields": {"brand": 6, "created": "2014-01-08T10:26:57.034Z", "modified": "2014-01-08T10:26:57.034Z", "title": "Panamera"}}, {"pk": 105, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.741Z", "modified": "2014-01-08T10:27:55.741Z", "title": "Citigo"}}, {"pk": 106, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.742Z", "modified": "2014-01-08T10:27:55.742Z", "title": "Fabia"}}, {"pk": 107, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.742Z", "modified": "2014-01-08T10:27:55.743Z", "title": "Octavia"}}, {"pk": 108, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.743Z", "modified": "2014-01-08T10:27:55.743Z", "title": "Rapid"}}, {"pk": 109, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.744Z", "modified": "2014-01-08T10:27:55.744Z", "title": "Rapid Spaceback"}}, {"pk": 110, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.745Z", "modified": "2014-01-08T10:27:55.745Z", "title": "Roomster"}}, {"pk": 111, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.745Z", "modified": "2014-01-08T10:27:55.745Z", "title": "Superb"}}, {"pk": 112, "model": "example.brandmodel", "fields": {"brand": 7, "created": "2014-01-08T10:27:55.746Z", "modified": "2014-01-08T10:27:55.746Z", "title": "Yeti"}}, {"pk": 2, "model": "example.car", "fields": {"engine": "DIESEL", "created": "2014-01-09T08:48:42.907Z", "color": "WHITE", "modified": "2014-01-09T09:52:14.549Z", "numberplate": "A500", "model": 32}}, {"pk": 1, "model": "example.car", "fields": {"engine": "GASOLINE", "created": "2014-01-08T15:57:31.831Z", "color": "BLACK", "modified": "2014-01-09T09:52:37.215Z", "numberplate": "BMW333", "model": 76}}, {"pk": 9, "model": "example.car", "fields": {"engine": "GASOLINE", "created": "2014-01-09T09:45:50.896Z", "color": "RED", "modified": "2014-01-09T09:51:55.037Z", "numberplate": "P911", "model": 100}}, {"pk": 10, "model": "example.car", "fields": {"engine": "GASOLINE", "created": "2014-01-09T09:47:26.909Z", "color": "WHITE", "modified": "2014-01-09T09:52:52.774Z", "numberplate": "SK666", "model": 109}}] -------------------------------------------------------------------------------- /example/example/forms.py: -------------------------------------------------------------------------------- 1 | from django.core.urlresolvers import reverse_lazy 2 | from django.forms import ChoiceField, ModelChoiceField 3 | from django.utils.translation import gettext_lazy as _ 4 | 5 | from clever_selects.form_fields import ChainedChoiceField, ChainedModelChoiceField 6 | from clever_selects.forms import ChainedChoicesForm, ChainedChoicesModelForm 7 | 8 | from helpers import CONTINENTS, GENDER 9 | from models import CarBrand, Car, BrandModel 10 | 11 | 12 | class SimpleChainForm(ChainedChoicesForm): 13 | gender = ChoiceField(choices=[('', _('Select a gender'))] + list(GENDER)) 14 | name = ChainedChoiceField(parent_field='gender', ajax_url=reverse_lazy('ajax_chained_names'), empty_label=_('Select name')) 15 | 16 | 17 | class MultipleChainForm(ChainedChoicesForm): 18 | continent = ChoiceField(choices=[('', _('Select a continent'))] + list(CONTINENTS)) 19 | country = ChainedChoiceField(parent_field='continent', ajax_url=reverse_lazy('ajax_chained_countries')) 20 | city = ChainedChoiceField(parent_field='country', ajax_url=reverse_lazy('ajax_chained_cities')) 21 | 22 | 23 | class ModelChainForm(ChainedChoicesModelForm): 24 | brand = ModelChoiceField(queryset=CarBrand.objects.all(), required=True, empty_label=_('Select a car brand')) 25 | model = ChainedModelChoiceField(parent_field='brand', ajax_url=reverse_lazy('ajax_chained_models'), 26 | empty_label=_('Select a car model'), model=BrandModel, required=True) 27 | engine = ChoiceField(choices=([('', _('All engine types'))] + Car.ENGINES), required=False) 28 | color = ChainedChoiceField(parent_field='model', ajax_url=reverse_lazy('ajax_chained_colors'), 29 | empty_label=_('Select a car model'), required=False) 30 | 31 | class Meta: 32 | model = Car 33 | fields = ['brand', 'model', 'engine', 'color', 'numberplate'] 34 | -------------------------------------------------------------------------------- /example/example/helpers.py: -------------------------------------------------------------------------------- 1 | __author__ = 'Erik Telepovsky' 2 | 3 | 4 | GENDER_MALE = 'male' 5 | GENDER_FEMALE = 'female' 6 | GENDER = ( 7 | (GENDER_MALE, 'Male'), 8 | (GENDER_FEMALE, 'Female') 9 | ) 10 | 11 | NAMES = { 12 | GENDER_MALE: ['Andrew', 'Arthur', 'Ian', 'Eric', 'Leonard', 'Lukas', 'Matt', 'Peter', 'Vincent'], 13 | GENDER_FEMALE: ['Allison', 'Angela', 'Catherine', 'Elisabeth', 'Evangeline', 'Heidi', 'Katie', 'Lilly', 'Susan'] 14 | } 15 | 16 | CONTINENT_NORTH_AMERICA = 'north_america' 17 | CONTINENT_SOUTH_AMERICA = 'south_america' 18 | CONTINENT_EUROPE = 'europe' 19 | CONTINENT_ASIA = 'asia' 20 | CONTINENT_AFRICA = 'africa' 21 | CONTINENT_AUSTRALIA = 'australia' 22 | CONTINENT_ANTARCTICA = 'antarctica' 23 | CONTINENTS = ( 24 | (CONTINENT_NORTH_AMERICA, 'North America'), 25 | (CONTINENT_SOUTH_AMERICA, 'South America'), 26 | (CONTINENT_EUROPE, 'Europe'), 27 | (CONTINENT_ASIA, 'Asia'), 28 | (CONTINENT_AFRICA, 'Africa'), 29 | (CONTINENT_AUSTRALIA, 'Australia'), 30 | (CONTINENT_ANTARCTICA, 'Antarctica') 31 | ) 32 | 33 | 34 | # North America 35 | COUNTRY_ALASKA = 'Alaska' 36 | COUNTRY_CANADA = 'Canada' 37 | COUNTRY_USA = 'USA' 38 | COUNTRY_MEXICO = 'Mexico' 39 | 40 | # South America 41 | COUNTRY_COLOMBIA = 'Colombia' 42 | COUNTRY_VENEZUELA = 'Venezuela' 43 | COUNTRY_BRAZIL = 'Brazil' 44 | COUNTRY_CHILE = 'Chile' 45 | COUNTRY_URUGUAY = 'Uruguay' 46 | COUNTRY_ARGENTINA = 'Argentina' 47 | 48 | # Europe 49 | COUNTRY_SLOVAKIA = 'Slovakia' 50 | COUNTRY_SPAIN = 'Spain' 51 | COUNTRY_BULGARIA = 'Bulgaria' 52 | COUNTRY_PORTUGAL = 'Portugal' 53 | COUNTRY_ITALY = 'Italy' 54 | COUNTRY_UNITED_KINGDOM = 'United Kingdom' 55 | 56 | # Asia 57 | COUNTRY_CHINA = 'China' 58 | COUNTRY_RUSSIA = 'Russia' 59 | COUNTRY_JAPAN = 'Japan' 60 | COUNTRY_INDIA = 'India' 61 | 62 | # Africa 63 | COUNTRY_ALGERIA = 'Algeria' 64 | COUNTRY_EGYPT = 'Egypt' 65 | COUNTRY_SUDAN = 'Sudan' 66 | COUNTRY_ETHIOPIA = 'Ethiopia' 67 | COUNTRY_SOMALIA = 'Somalia' 68 | COUNTRY_MADAGASCAR = 'Madagascar' 69 | 70 | # Australia 71 | COUNTRY_WESTERN_AUSTRALIA = 'Western Australia' 72 | COUNTRY_NORTHERN_TERRITORY = 'Northern Territory' 73 | COUNTRY_SOUTH_AUSTRALIA = 'South Australia' 74 | COUNTRY_QUEENSLAND = 'Queensland' 75 | COUNTRY_NEW_SOUTH_WALES = 'New South Wales' 76 | COUNTRY_VICTORIA = 'Victoria' 77 | COUNTRY_AUSTRALIAN_CAPITAL_TERRITORY = 'Australian Capital Territory' 78 | COUNTRY_TASMANIA = 'Tasmania' 79 | 80 | # Antarctica 81 | COUNTRY_SOUTH_ORKNEY_ISLANDS = 'South Orkney Islands' 82 | COUNTRY_GRAHAM_LAND = 'Graham Land' 83 | COUNTRY_MARIE_BYRD_LAND = 'Marie Byrd Land' 84 | COUNTRY_QEEN_MAUD_LAND = 'Queen Maud Land' 85 | COUNTRY_VICTORIA_LAND = 'Victoria Land' 86 | COUNTRY_WILKES_LAND = 'Wilkes Land' 87 | 88 | COUNTRIES = { 89 | CONTINENT_NORTH_AMERICA: [ 90 | COUNTRY_ALASKA, COUNTRY_CANADA, COUNTRY_USA, COUNTRY_MEXICO 91 | ], 92 | CONTINENT_SOUTH_AMERICA: [ 93 | COUNTRY_COLOMBIA, COUNTRY_VENEZUELA, COUNTRY_BRAZIL, COUNTRY_CHILE, COUNTRY_URUGUAY, COUNTRY_ARGENTINA 94 | ], 95 | CONTINENT_EUROPE: [ 96 | COUNTRY_SLOVAKIA, COUNTRY_SPAIN, COUNTRY_BULGARIA, COUNTRY_PORTUGAL, COUNTRY_ITALY, COUNTRY_UNITED_KINGDOM 97 | ], 98 | CONTINENT_ASIA: [ 99 | COUNTRY_CHINA, COUNTRY_RUSSIA, COUNTRY_JAPAN, COUNTRY_INDIA 100 | ], 101 | CONTINENT_AFRICA: [ 102 | COUNTRY_ALGERIA, COUNTRY_EGYPT, COUNTRY_SUDAN, COUNTRY_ETHIOPIA, COUNTRY_SOMALIA, COUNTRY_MADAGASCAR 103 | ], 104 | CONTINENT_AUSTRALIA: [ 105 | COUNTRY_WESTERN_AUSTRALIA, COUNTRY_NORTHERN_TERRITORY, COUNTRY_SOUTH_AUSTRALIA, COUNTRY_QUEENSLAND, 106 | COUNTRY_NEW_SOUTH_WALES, COUNTRY_VICTORIA, COUNTRY_TASMANIA, COUNTRY_AUSTRALIAN_CAPITAL_TERRITORY 107 | ], 108 | CONTINENT_ANTARCTICA: [ 109 | COUNTRY_SOUTH_ORKNEY_ISLANDS, COUNTRY_GRAHAM_LAND, COUNTRY_MARIE_BYRD_LAND, COUNTRY_QEEN_MAUD_LAND, 110 | COUNTRY_VICTORIA_LAND, COUNTRY_WILKES_LAND 111 | ] 112 | } 113 | 114 | CITIES = { 115 | # North America 116 | COUNTRY_ALASKA: [ 117 | 'Anchorage', 'Fairbanks', 'Juneau', 'Sitka', 'Ketchikan', 'Wasilla', 'Kenai' 118 | ], 119 | COUNTRY_CANADA: [ 120 | 'Ottawa', 'Edmonton', 'Victoria', 'Winnipeg', 'Halifax', 'Toronto', 'Charlottetown', 'Quebec City' 121 | ], 122 | COUNTRY_USA: [ 123 | 'New York', 'Los Angeles', 'Chicago', 'Houston', 'Philadelphia', 'Phoenix', 'San Antonio', 'San Diego' 124 | ], 125 | COUNTRY_MEXICO: [ 126 | 'Mexico City', 'Ecatepec', 'Guadalajara', 'Puebla', 'Leon', 'Juarez', 'Tijuana' 127 | ], 128 | 129 | # South America 130 | COUNTRY_COLOMBIA: [ 131 | 'Bogota', 'Medellin', 'Cali', 'Barranquilla', 'Cartagena' 132 | ], 133 | COUNTRY_VENEZUELA: [ 134 | 'Isla Raton', 'La Esmeralda', 'Maroa', 'Puerto Ayacucho', 'San Carlos de Rio Negro', 135 | ], 136 | COUNTRY_BRAZIL: [ 137 | 'Sao Paulo', 'Rio de Janeiro', 'Salvador', 'Fortaleza', 'Belo Horizonte' 138 | ], 139 | COUNTRY_CHILE: [ 140 | 'Puente Alto', 'Maipu', 'La Florida', 'Las Condes', 'San Bernardo' 141 | ], 142 | COUNTRY_URUGUAY: [ 143 | 'Montevideo', 'Salto', 'Ciudad de la Costa', 'Paysandu', 'Las Piedras', 'Rivera', 'Maldonado' 144 | ], 145 | COUNTRY_ARGENTINA: [ 146 | 'Buenos Aires', 'Cordoba', 'Rosario', 'Mendoza', 'La Plata' 147 | ], 148 | 149 | # Europe 150 | COUNTRY_SLOVAKIA: [ 151 | 'Bratislava', 'Kosice', 'Trebisov', 'Poprad', 'Zilina', 'Puchov', 'Banska Bystrica', 'Presov' 152 | ], 153 | COUNTRY_SPAIN: [ 154 | 'Madrid', 'Barcelona', 'Valencia', 'Seville', 'Zaragoza', 'Malaga', 'Murcia' 155 | ], 156 | COUNTRY_BULGARIA: [ 157 | 'Sofia', 'Plovdiv', 'Varna', 'Burgas', 'Ruse', 'Stara Zagora', 'Pleven', 'Sliven' 158 | ], 159 | COUNTRY_PORTUGAL: [ 160 | 'Lisbon', 'Porto', 'Vila Nova de Gaia', 'Amadora', 'Braga', 'Agualva-Cacem', 'Funchal' 161 | ], 162 | COUNTRY_ITALY: [ 163 | 'Rome', 'Milan', 'Naples', 'Turin', 'Palermo', 'Genoa', 'Bologna', 'Florence', 'Bari', 'Catania', 'Venice' 164 | ], 165 | COUNTRY_UNITED_KINGDOM: [ 166 | 'London', 'Wells', 'Ripon', 'Truro', 'Ely', 'Chichester', 'Worcester', 'Oxford' 167 | ], 168 | 169 | # Asia 170 | COUNTRY_CHINA: [ 171 | 'Beijing', 'Shanghai', 'Hong Kong', 'Jinjiang', 'Xiamen', 'Sihui' 172 | ], 173 | COUNTRY_RUSSIA: [ 174 | 'Moscow', 'Saint Petersburg', 'Novosibirsk', 'Yekaterinburg', 'Nizhny Novgorod', 'Samara', 'Omsk', 'Kazan' 175 | ], 176 | COUNTRY_JAPAN: [ 177 | 'Tokyo', 'Aichi', 'Akita', 'Chiba', 'Fukui', 'Fukushima', 'Hokkaido', 'Ishikawa', 'Kyoto', 'Osaka' 178 | ], 179 | COUNTRY_INDIA: [ 180 | 'Mumbai', 'Delhi', 'Bangalore', 'Hyderabad', 'Ahmedabad', 'Chennai', 'Kolkata', 'Jaipur' 181 | ], 182 | 183 | # Africa 184 | COUNTRY_ALGERIA: [ 185 | 'Alger', 'Oran', 'Constantine', 'Annaba', 'Blida', 'Batna', 'Djelfa' 186 | ], 187 | COUNTRY_EGYPT: [ 188 | 'Cairo', 'Alexandria', 'Giza', 'Shubra El-Kheima', 'Port Said', 'Suez', 'Luxor' 189 | ], 190 | COUNTRY_SUDAN: [ 191 | 'Omdurman', 'Khartoum', 'Khartoum Bahri', 'Nyala', 'Port Sudan', 'Kassala', 'Ubayyid', 'Kosti', 'Wad Madani' 192 | ], 193 | COUNTRY_ETHIOPIA: [ 194 | 'Addis Ababa', 'Dire Dawa', 'Mek\'ele', 'Adama', 'Gondar', 'Awasa', 'Bahir Dar', 'Jimma', 'Dessie' 195 | ], 196 | COUNTRY_SOMALIA: [ 197 | 'Mogadishu', 'Hargeisa', 'Bosaso', 'Galkayo', 'Berbera', 'Merca' 198 | ], 199 | COUNTRY_MADAGASCAR: [ 200 | 'Antananarivo', 'Toamasina', 'Antsirabe', 'Fianarantsoa', 'Mahajanga', 'Toliara', 'Antsiranana' 201 | ], 202 | 203 | # Australia 204 | COUNTRY_WESTERN_AUSTRALIA: [ 205 | 'Perth', 'Bunbury' 206 | ], 207 | COUNTRY_NORTHERN_TERRITORY: [ 208 | 'Darwin', 'Toowoomba' 209 | ], 210 | COUNTRY_SOUTH_AUSTRALIA: [ 211 | 'Adelaide' 212 | ], 213 | COUNTRY_QUEENSLAND: [ 214 | 'Brisbane', 'Gold Coast-Tweed', 'Sunshine Coast', 'Townsville', 'Cairns' 215 | ], 216 | COUNTRY_NEW_SOUTH_WALES: [ 217 | 'Sydney', 'Newcastle-Maitland', 'Wollongong', 'Albury-Wodonga' 218 | ], 219 | COUNTRY_VICTORIA: [ 220 | 'Melbourne', 'Geelong', 'Ballarat', 'Bendigo', 'Shepparton-Mooroopna' 221 | ], 222 | COUNTRY_AUSTRALIAN_CAPITAL_TERRITORY: [ 223 | 'Canberra-Queanbeyan', 224 | ], 225 | COUNTRY_TASMANIA: [ 226 | 'Hobart', 'Launceston' 227 | ], 228 | 229 | # Antarctica 230 | COUNTRY_SOUTH_ORKNEY_ISLANDS: [ 231 | 232 | ], 233 | COUNTRY_GRAHAM_LAND: [ 234 | 235 | ], 236 | COUNTRY_MARIE_BYRD_LAND: [ 237 | 238 | ], 239 | COUNTRY_QEEN_MAUD_LAND: [ 240 | 241 | ], 242 | COUNTRY_VICTORIA_LAND: [ 243 | 244 | ], 245 | COUNTRY_WILKES_LAND: [ 246 | 247 | ], 248 | } 249 | -------------------------------------------------------------------------------- /example/example/models.py: -------------------------------------------------------------------------------- 1 | from django.db import models 2 | from django.utils.translation import gettext_lazy as _ 3 | 4 | 5 | class CarBrand(models.Model): 6 | title = models.CharField(_('title'), max_length=128, unique=True) 7 | created = models.DateTimeField(_('created'), auto_now_add=True) 8 | modified = models.DateTimeField(_('modified'), auto_now=True) 9 | 10 | def __str__(self): 11 | return self.title 12 | 13 | class Meta: 14 | db_table = 'example_car_brands' 15 | verbose_name = _('car brand') 16 | verbose_name_plural = _('car brands') 17 | ordering = ['title', ] 18 | 19 | 20 | class BrandModel(models.Model): 21 | brand = models.ForeignKey(CarBrand, verbose_name=_('car brand')) 22 | title = models.CharField(_('title'), max_length=128) 23 | created = models.DateTimeField(_('created'), auto_now_add=True) 24 | modified = models.DateTimeField(_('modified'), auto_now=True) 25 | 26 | def __str__(self): 27 | return self.title 28 | 29 | class Meta: 30 | db_table = 'example_brand_models' 31 | verbose_name = _('brand model') 32 | verbose_name_plural = _('brand models') 33 | unique_together = (('brand', 'title'),) 34 | ordering = ['brand', 'title', ] 35 | 36 | 37 | class Car(models.Model): 38 | ENGINES = [ 39 | ('DIESEL', _('Diesel')), 40 | ('GASOLINE', _('Gasoline')) 41 | ] 42 | COLORS = [ 43 | ('RED', _('red')), 44 | ('GREEN', _('green')), 45 | ('BLUE', _('blue')), 46 | ('WHITE', _('white')), 47 | ('BLACK', _('black')), 48 | ('YELLOW', _('yellow')), 49 | ('SILVER', _('silver')), 50 | ('PINK', _('pink')) 51 | ] 52 | 53 | model = models.ForeignKey(BrandModel, verbose_name=_('car brand model')) 54 | engine = models.CharField(choices=ENGINES, max_length=8) 55 | color = models.CharField(choices=COLORS, max_length=8, blank=True, null=True, default=None) 56 | numberplate = models.CharField(max_length=16, unique=True) 57 | created = models.DateTimeField(_('created'), auto_now_add=True) 58 | modified = models.DateTimeField(_('modified'), auto_now=True) 59 | 60 | def __str__(self): 61 | return '%(brand)s %(model)s' % { 62 | 'brand': self.brand, 63 | 'model': self.model, 64 | } 65 | 66 | @property 67 | def brand(self): 68 | return self.model.brand 69 | 70 | class Meta: 71 | db_table = 'example_cars' 72 | verbose_name = _('car') 73 | verbose_name_plural = _('cars') 74 | ordering = ['model__brand', 'model', 'numberplate'] 75 | -------------------------------------------------------------------------------- /example/example/settings.py: -------------------------------------------------------------------------------- 1 | # Django settings for example project. 2 | 3 | DEBUG = True 4 | TEMPLATE_DEBUG = DEBUG 5 | 6 | ADMINS = ( 7 | # ('Your Name', 'your_email@example.com'), 8 | ) 9 | 10 | MANAGERS = ADMINS 11 | 12 | DATABASES = { 13 | 'default': { 14 | 'ENGINE': 'django.db.backends.postgresql_psycopg2', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'. 15 | 'NAME': 'example', # Or path to database file if using sqlite3. 16 | 'USER': 'example', # Not used with sqlite3. 17 | 'PASSWORD': 'example', # Not used with sqlite3. 18 | 'HOST': '', # Set to empty string for localhost. Not used with sqlite3. 19 | 'PORT': '', # Set to empty string for default. Not used with sqlite3. 20 | } 21 | } 22 | 23 | # Hosts/domain names that are valid for this site; required if DEBUG is False 24 | # See https://docs.djangoproject.com/en/1.4/ref/settings/#allowed-hosts 25 | ALLOWED_HOSTS = [] 26 | 27 | # Local time zone for this installation. Choices can be found here: 28 | # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name 29 | # although not all choices may be available on all operating systems. 30 | # In a Windows environment this must be set to your system time zone. 31 | TIME_ZONE = 'America/Chicago' 32 | 33 | # Language code for this installation. All choices can be found here: 34 | # http://www.i18nguy.com/unicode/language-identifiers.html 35 | LANGUAGE_CODE = 'en-us' 36 | 37 | SITE_ID = 1 38 | 39 | # If you set this to False, Django will make some optimizations so as not 40 | # to load the internationalization machinery. 41 | USE_I18N = True 42 | 43 | # If you set this to False, Django will not format dates, numbers and 44 | # calendars according to the current locale. 45 | USE_L10N = True 46 | 47 | # If you set this to False, Django will not use timezone-aware datetimes. 48 | USE_TZ = True 49 | 50 | # Absolute filesystem path to the directory that will hold user-uploaded files. 51 | # Example: "/home/media/media.lawrence.com/media/" 52 | MEDIA_ROOT = '' 53 | 54 | # URL that handles the media served from MEDIA_ROOT. Make sure to use a 55 | # trailing slash. 56 | # Examples: "http://media.lawrence.com/media/", "http://example.com/media/" 57 | MEDIA_URL = '' 58 | 59 | # Absolute path to the directory static files should be collected to. 60 | # Don't put anything in this directory yourself; store your static files 61 | # in apps' "static/" subdirectories and in STATICFILES_DIRS. 62 | # Example: "/home/media/media.lawrence.com/static/" 63 | STATIC_ROOT = '' 64 | 65 | # URL prefix for static files. 66 | # Example: "http://media.lawrence.com/static/" 67 | STATIC_URL = '/static/' 68 | 69 | # Additional locations of static files 70 | STATICFILES_DIRS = ( 71 | # Put strings here, like "/home/html/static" or "C:/www/django/static". 72 | # Always use forward slashes, even on Windows. 73 | # Don't forget to use absolute paths, not relative paths. 74 | ) 75 | 76 | # List of finder classes that know how to find static files in 77 | # various locations. 78 | STATICFILES_FINDERS = ( 79 | 'django.contrib.staticfiles.finders.FileSystemFinder', 80 | 'django.contrib.staticfiles.finders.AppDirectoriesFinder', 81 | # 'django.contrib.staticfiles.finders.DefaultStorageFinder', 82 | ) 83 | 84 | # Make this unique, and don't share it with anybody. 85 | SECRET_KEY = '3(q1o$0-wpnrx7i789c5j$5*#-rc50m^x3n!jia_cl7_k=v1(c' 86 | 87 | # List of callables that know how to import templates from various sources. 88 | TEMPLATE_LOADERS = ( 89 | 'django.template.loaders.filesystem.Loader', 90 | 'django.template.loaders.app_directories.Loader', 91 | # 'django.template.loaders.eggs.Loader', 92 | ) 93 | 94 | MIDDLEWARE_CLASSES = ( 95 | 'django.middleware.common.CommonMiddleware', 96 | 'django.contrib.sessions.middleware.SessionMiddleware', 97 | 'django.middleware.csrf.CsrfViewMiddleware', 98 | 'django.contrib.auth.middleware.AuthenticationMiddleware', 99 | 'django.contrib.messages.middleware.MessageMiddleware', 100 | # Uncomment the next line for simple clickjacking protection: 101 | # 'django.middleware.clickjacking.XFrameOptionsMiddleware', 102 | ) 103 | 104 | 105 | ROOT_URLCONF = 'example.urls' 106 | 107 | # Python dotted path to the WSGI application used by Django's runserver. 108 | WSGI_APPLICATION = 'example.wsgi.application' 109 | 110 | TEMPLATE_DIRS = ( 111 | # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates". 112 | # Always use forward slashes, even on Windows. 113 | # Don't forget to use absolute paths, not relative paths. 114 | ) 115 | 116 | INSTALLED_APPS = ( 117 | 'django.contrib.auth', 118 | 'django.contrib.contenttypes', 119 | 'django.contrib.sessions', 120 | 'django.contrib.sites', 121 | 'django.contrib.messages', 122 | 'django.contrib.staticfiles', 123 | # Uncomment the next line to enable the admin: 124 | 'django.contrib.admin', 125 | # Uncomment the next line to enable admin documentation: 126 | 'django.contrib.admindocs', 127 | 128 | 'clever_selects', 129 | 130 | 'example' 131 | ) 132 | 133 | # A sample logging configuration. The only tangible logging 134 | # performed by this configuration is to send an email to 135 | # the site admins on every HTTP 500 error when DEBUG=False. 136 | # See http://docs.djangoproject.com/en/dev/topics/logging for 137 | # more details on how to customize your logging configuration. 138 | LOGGING = { 139 | 'version': 1, 140 | 'disable_existing_loggers': False, 141 | 'filters': { 142 | 'require_debug_false': { 143 | '()': 'django.utils.log.RequireDebugFalse' 144 | } 145 | }, 146 | 'handlers': { 147 | 'mail_admins': { 148 | 'level': 'ERROR', 149 | 'filters': ['require_debug_false'], 150 | 'class': 'django.utils.log.AdminEmailHandler' 151 | } 152 | }, 153 | 'loggers': { 154 | 'django.request': { 155 | 'handlers': ['mail_admins'], 156 | 'level': 'ERROR', 157 | 'propagate': True, 158 | }, 159 | } 160 | } 161 | -------------------------------------------------------------------------------- /example/example/static/js/jquery-1.10.2.min.js: 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