--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/admin/helpers.py Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,231 @@
+
+from django import forms
+from django.conf import settings
+from django.utils.html import escape
+from django.utils.safestring import mark_safe
+from django.utils.encoding import force_unicode
+from django.contrib.admin.util import flatten_fieldsets
+from django.contrib.contenttypes.models import ContentType
+from django.utils.translation import ugettext_lazy as _
+
+ACTION_CHECKBOX_NAME = '_selected_action'
+
+class ActionForm(forms.Form):
+ action = forms.ChoiceField(label=_('Action:'))
+
+checkbox = forms.CheckboxInput({'class': 'action-select'}, lambda value: False)
+
+class AdminForm(object):
+ def __init__(self, form, fieldsets, prepopulated_fields):
+ 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()]
+
+ def __iter__(self):
+ for name, options in self.fieldsets:
+ yield Fieldset(self.form, name, **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, fields=(), classes=(), description=None):
+ self.form = form
+ self.name, self.fields = name, fields
+ self.classes = u' '.join(classes)
+ self.description = description
+
+ def _media(self):
+ if 'collapse' in self.classes:
+ return forms.Media(js=['%sjs/admin/CollapsedFieldsets.js' % settings.ADMIN_MEDIA_PREFIX])
+ return forms.Media()
+ media = property(_media)
+
+ def __iter__(self):
+ for field in self.fields:
+ yield Fieldline(self.form, field)
+
+class Fieldline(object):
+ def __init__(self, form, field):
+ self.form = form # A django.forms.Form instance
+ if isinstance(field, basestring):
+ self.fields = [field]
+ else:
+ self.fields = field
+
+ def __iter__(self):
+ for i, field in enumerate(self.fields):
+ 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]).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 InlineAdminFormSet(object):
+ """
+ A wrapper around an inline formset for use in the admin system.
+ """
+ def __init__(self, inline, formset, fieldsets):
+ self.opts = inline
+ self.formset = formset
+ self.fieldsets = fieldsets
+
+ 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)
+ for form in self.formset.extra_forms:
+ yield InlineAdminForm(self.formset, form, self.fieldsets, self.opts.prepopulated_fields, None)
+
+ def fields(self):
+ fk = getattr(self.formset, "fk", None)
+ for field_name in flatten_fieldsets(self.fieldsets):
+ if fk and fk.name == field_name:
+ continue
+ 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):
+ self.formset = formset
+ 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)
+
+ def __iter__(self):
+ for name, options in self.fieldsets:
+ yield InlineFieldset(self.formset, self.form, name, **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)
+
+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
+