from django import forms from django.conf import settings from django.contrib.admin.util import flatten_fieldsets, lookup_field from django.contrib.admin.util import display_for_field, label_for_field from django.contrib.contenttypes.models import ContentType from django.core.exceptions import ObjectDoesNotExist from django.db.models.fields import FieldDoesNotExist from django.db.models.fields.related import ManyToManyRel from django.forms.util import flatatt from django.utils.encoding import force_unicode, smart_unicode from django.utils.html import escape, conditional_escape from django.utils.safestring import mark_safe from django.utils.translation import ugettext_lazy as _ 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, normalize_fieldsets(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 first_field(self): try: fieldset_name, fieldset_options = self.fieldsets[0] field_name = fieldset_options['fields'][0] if not isinstance(field_name, basestring): field_name = field_name[0] return self.form[field_name] except (KeyError, IndexError): pass try: return iter(self.form).next() except StopIteration: return None 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 = u' '.join(classes) self.description = description self.model_admin = model_admin self.readonly_fields = readonly_fields def _media(self): if 'collapse' in self.classes: return forms.Media(js=['%sjs/collapse.min.js' % settings.ADMIN_MEDIA_PREFIX]) 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__"): self.fields = [field] else: self.fields = field 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(u'\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 = [] if self.is_checkbox: classes.append(u'vCheckboxLabel') contents = force_unicode(escape(self.field.label)) else: contents = force_unicode(escape(self.field.label)) + u':' if self.field.field.required: classes.append(u'required') if not self.is_first: classes.append(u'inline') attrs = classes and {'class': u' '.join(classes)} or {} return self.field.label_tag(contents=contents, attrs=attrs) class AdminReadonlyField(object): def __init__(self, form, field, is_first, model_admin=None): self.field = field 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" name = forms.forms.pretty_name( label_for_field(self.field, self.model_admin.model, self.model_admin) ) contents = force_unicode(escape(name)) + u":" return mark_safe('%(contents)s' % { "attrs": flatatt(attrs), "contents": contents, }) 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, self.form.instance, self.model_admin try: f, attr, value = lookup_field(field, obj, model_admin) except (AttributeError, 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_unicode(value) if getattr(attr, "allow_tags", False): result_repr = mark_safe(result_repr) else: if value is None: result_repr = EMPTY_CHANGELIST_VALUE elif isinstance(f.rel, ManyToManyRel): result_repr = ", ".join(map(unicode, 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, 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 def __iter__(self): for form, original in zip(self.formset.initial_forms, self.formset.get_queryset()): yield InlineAdminForm(self.formset, form, self.fieldsets, self.opts.prepopulated_fields, original, self.readonly_fields, model_admin=self.model_admin) for form in self.formset.extra_forms: yield InlineAdminForm(self.formset, form, self.fieldsets, self.opts.prepopulated_fields, None, self.readonly_fields, model_admin=self.model_admin) yield InlineAdminForm(self.formset, self.formset.empty_form, self.fieldsets, self.opts.prepopulated_fields, None, self.readonly_fields, model_admin=self.model_admin) def fields(self): fk = getattr(self.formset, "fk", None) for i, field in enumerate(flatten_fieldsets(self.fieldsets)): if fk and fk.name == field: continue if field in self.readonly_fields: label = label_for_field(field, self.opts.model, self.model_admin) yield (False, forms.forms.pretty_name(label)) else: field = self.formset.form.base_fields[field] yield (field.widget.is_hidden, field.label) 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): 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 hasattr(original, 'get_absolute_url') super(InlineAdminForm, self).__init__(form, fieldsets, prepopulated_fields, readonly_fields) 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 has_auto_field(self): if self.form._meta.model._meta.has_auto_field: return True # Also search any parents for an auto field. 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.util.ErrorList): """ Stores all errors for the form/formsets in an add/change stage view. """ def __init__(self, form, inline_formsets): if form.is_bound: self.extend(form.errors.values()) for inline_formset in inline_formsets: self.extend(inline_formset.non_form_errors()) for errors_in_inline_form in inline_formset.errors: self.extend(errors_in_inline_form.values()) def normalize_fieldsets(fieldsets): """ Make sure the keys in fieldset dictionaries are strings. Returns the normalized data. """ result = [] for name, options in fieldsets: result.append((name, normalize_dictionary(options))) return result def normalize_dictionary(data_dict): """ Converts all the keys in "data_dict" to strings. The keys must be convertible using str(). """ for key, value in data_dict.items(): if not isinstance(key, str): del data_dict[key] data_dict[str(key)] = value return data_dict