from __future__ import unicode_literals from django import forms from django.contrib.admin.utils import (flatten_fieldsets, lookup_field, display_for_field, label_for_field, help_text_for_field) from django.contrib.admin.templatetags.admin_static import static from django.contrib.contenttypes.models import ContentType from django.core.exceptions import ObjectDoesNotExist from django.db.models.fields.related import ManyToManyRel from django.forms.utils import flatatt from django.template.defaultfilters import capfirst from django.utils.encoding import force_text, smart_text from django.utils.html import conditional_escape, format_html from django.utils.safestring import mark_safe from django.utils import six from django.utils.translation import ugettext_lazy as _ from django.conf import settings ACTION_CHECKBOX_NAME = '_selected_action' class ActionForm(forms.Form): action = forms.ChoiceField(label=_('Action:')) select_across = forms.BooleanField(label='', required=False, initial=0, widget=forms.HiddenInput({'class': 'select-across'})) checkbox = forms.CheckboxInput({'class': 'action-select'}, lambda value: False) class AdminForm(object): def __init__(self, form, fieldsets, prepopulated_fields, readonly_fields=None, model_admin=None): self.form, self.fieldsets = form, fieldsets self.prepopulated_fields = [{ 'field': form[field_name], 'dependencies': [form[f] for f in dependencies] } for field_name, dependencies in prepopulated_fields.items()] self.model_admin = model_admin if readonly_fields is None: readonly_fields = () self.readonly_fields = readonly_fields def __iter__(self): for name, options in self.fieldsets: yield Fieldset( self.form, name, readonly_fields=self.readonly_fields, model_admin=self.model_admin, **options ) def _media(self): media = self.form.media for fs in self: media = media + fs.media return media media = property(_media) class Fieldset(object): def __init__(self, form, name=None, readonly_fields=(), fields=(), classes=(), description=None, model_admin=None): self.form = form self.name, self.fields = name, fields self.classes = ' '.join(classes) self.description = description self.model_admin = model_admin self.readonly_fields = readonly_fields def _media(self): if 'collapse' in self.classes: extra = '' if settings.DEBUG else '.min' js = ['jquery%s.js' % extra, 'jquery.init.js', 'collapse%s.js' % extra] return forms.Media(js=[static('admin/js/%s' % url) for url in js]) return forms.Media() media = property(_media) def __iter__(self): for field in self.fields: yield Fieldline(self.form, field, self.readonly_fields, model_admin=self.model_admin) class Fieldline(object): def __init__(self, form, field, readonly_fields=None, model_admin=None): self.form = form # A django.forms.Form instance if not hasattr(field, "__iter__") or isinstance(field, six.text_type): self.fields = [field] else: self.fields = field self.has_visible_field = not all(field in self.form.fields and self.form.fields[field].widget.is_hidden for field in self.fields) self.model_admin = model_admin if readonly_fields is None: readonly_fields = () self.readonly_fields = readonly_fields def __iter__(self): for i, field in enumerate(self.fields): if field in self.readonly_fields: yield AdminReadonlyField(self.form, field, is_first=(i == 0), model_admin=self.model_admin) else: yield AdminField(self.form, field, is_first=(i == 0)) def errors(self): return mark_safe('\n'.join(self.form[f].errors.as_ul() for f in self.fields if f not in self.readonly_fields).strip('\n')) class AdminField(object): def __init__(self, form, field, is_first): self.field = form[field] # A django.forms.BoundField instance self.is_first = is_first # Whether this field is first on the line self.is_checkbox = isinstance(self.field.field.widget, forms.CheckboxInput) def label_tag(self): classes = [] contents = conditional_escape(force_text(self.field.label)) if self.is_checkbox: classes.append('vCheckboxLabel') if self.field.field.required: classes.append('required') if not self.is_first: classes.append('inline') attrs = {'class': ' '.join(classes)} if classes else {} # checkboxes should not have a label suffix as the checkbox appears # to the left of the label. return self.field.label_tag(contents=mark_safe(contents), attrs=attrs, label_suffix='' if self.is_checkbox else None) def errors(self): return mark_safe(self.field.errors.as_ul()) class AdminReadonlyField(object): def __init__(self, form, field, is_first, model_admin=None): label = label_for_field(field, form._meta.model, model_admin) # Make self.field look a little bit like a field. This means that # {{ field.name }} must be a useful class name to identify the field. # For convenience, store other field-related data here too. if callable(field): class_name = field.__name__ if field.__name__ != '' else '' else: class_name = field self.field = { 'name': class_name, 'label': label, 'field': field, 'help_text': help_text_for_field(class_name, form._meta.model) } self.form = form self.model_admin = model_admin self.is_first = is_first self.is_checkbox = False self.is_readonly = True def label_tag(self): attrs = {} if not self.is_first: attrs["class"] = "inline" label = self.field['label'] return format_html('{1}:', flatatt(attrs), capfirst(force_text(label))) def contents(self): from django.contrib.admin.templatetags.admin_list import _boolean_icon from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE field, obj, model_admin = self.field['field'], self.form.instance, self.model_admin try: f, attr, value = lookup_field(field, obj, model_admin) except (AttributeError, ValueError, ObjectDoesNotExist): result_repr = EMPTY_CHANGELIST_VALUE else: if f is None: boolean = getattr(attr, "boolean", False) if boolean: result_repr = _boolean_icon(value) else: result_repr = smart_text(value) if getattr(attr, "allow_tags", False): result_repr = mark_safe(result_repr) else: if isinstance(f.rel, ManyToManyRel) and value is not None: result_repr = ", ".join(map(six.text_type, value.all())) else: result_repr = display_for_field(value, f) return conditional_escape(result_repr) class InlineAdminFormSet(object): """ A wrapper around an inline formset for use in the admin system. """ def __init__(self, inline, formset, fieldsets, prepopulated_fields=None, readonly_fields=None, model_admin=None): self.opts = inline self.formset = formset self.fieldsets = fieldsets self.model_admin = model_admin if readonly_fields is None: readonly_fields = () self.readonly_fields = readonly_fields if prepopulated_fields is None: prepopulated_fields = {} self.prepopulated_fields = prepopulated_fields def __iter__(self): for form, original in zip(self.formset.initial_forms, self.formset.get_queryset()): view_on_site_url = self.opts.get_view_on_site_url(original) yield InlineAdminForm(self.formset, form, self.fieldsets, self.prepopulated_fields, original, self.readonly_fields, model_admin=self.opts, view_on_site_url=view_on_site_url) for form in self.formset.extra_forms: yield InlineAdminForm(self.formset, form, self.fieldsets, self.prepopulated_fields, None, self.readonly_fields, model_admin=self.opts) yield InlineAdminForm(self.formset, self.formset.empty_form, self.fieldsets, self.prepopulated_fields, None, self.readonly_fields, model_admin=self.opts) def fields(self): fk = getattr(self.formset, "fk", None) for i, field_name in enumerate(flatten_fieldsets(self.fieldsets)): if fk and fk.name == field_name: continue if field_name in self.readonly_fields: yield { 'label': label_for_field(field_name, self.opts.model, self.opts), 'widget': { 'is_hidden': False }, 'required': False, 'help_text': help_text_for_field(field_name, self.opts.model), } else: yield self.formset.form.base_fields[field_name] def _media(self): media = self.opts.media + self.formset.media for fs in self: media = media + fs.media return media media = property(_media) class InlineAdminForm(AdminForm): """ A wrapper around an inline form for use in the admin system. """ def __init__(self, formset, form, fieldsets, prepopulated_fields, original, readonly_fields=None, model_admin=None, view_on_site_url=None): self.formset = formset self.model_admin = model_admin self.original = original if original is not None: self.original_content_type_id = ContentType.objects.get_for_model(original).pk self.show_url = original and view_on_site_url is not None self.absolute_url = view_on_site_url super(InlineAdminForm, self).__init__(form, fieldsets, prepopulated_fields, readonly_fields, model_admin) def __iter__(self): for name, options in self.fieldsets: yield InlineFieldset(self.formset, self.form, name, self.readonly_fields, model_admin=self.model_admin, **options) def needs_explicit_pk_field(self): # Auto fields are editable (oddly), so need to check for auto or non-editable pk if self.form._meta.model._meta.has_auto_field or not self.form._meta.model._meta.pk.editable: return True # Also search any parents for an auto field. (The pk info is propagated to child # models so that does not need to be checked in parents.) for parent in self.form._meta.model._meta.get_parent_list(): if parent._meta.has_auto_field: return True return False def field_count(self): # tabular.html uses this function for colspan value. num_of_fields = 0 if self.has_auto_field(): num_of_fields += 1 num_of_fields += len(self.fieldsets[0][1]["fields"]) if self.formset.can_order: num_of_fields += 1 if self.formset.can_delete: num_of_fields += 1 return num_of_fields def pk_field(self): return AdminField(self.form, self.formset._pk_field.name, False) def fk_field(self): fk = getattr(self.formset, "fk", None) if fk: return AdminField(self.form, fk.name, False) else: return "" def deletion_field(self): from django.forms.formsets import DELETION_FIELD_NAME return AdminField(self.form, DELETION_FIELD_NAME, False) def ordering_field(self): from django.forms.formsets import ORDERING_FIELD_NAME return AdminField(self.form, ORDERING_FIELD_NAME, False) class InlineFieldset(Fieldset): def __init__(self, formset, *args, **kwargs): self.formset = formset super(InlineFieldset, self).__init__(*args, **kwargs) def __iter__(self): fk = getattr(self.formset, "fk", None) for field in self.fields: if fk and fk.name == field: continue yield Fieldline(self.form, field, self.readonly_fields, model_admin=self.model_admin) class AdminErrorList(forms.utils.ErrorList): """ Stores all errors for the form/formsets in an add/change stage view. """ def __init__(self, form, inline_formsets): super(AdminErrorList, self).__init__() if form.is_bound: self.extend(list(six.itervalues(form.errors))) for inline_formset in inline_formsets: self.extend(inline_formset.non_form_errors()) for errors_in_inline_form in inline_formset.errors: self.extend(list(six.itervalues(errors_in_inline_form)))