X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/1d3756407233b937d7491bde6dd4046fb8b4b6d6..66d42c282c25daff0aa34ae374a05439ce2868c6:/admin/base.py?ds=inline diff --git a/admin/base.py b/admin/base.py index f4a5f2f..75fa336 100644 --- a/admin/base.py +++ b/admin/base.py @@ -1,7 +1,15 @@ +from django.conf import settings from django.contrib import admin from django.contrib.contenttypes import generic +from django.http import HttpResponse +from django.utils import simplejson as json +from django.utils.html import escape from philo.models import Tag, Attribute -from philo.forms import AttributeForm, AttributeInlineFormSet +from philo.models.fields.entities import ForeignKeyAttribute, ManyToManyAttribute +from philo.admin.forms.attributes import AttributeForm, AttributeInlineFormSet +from philo.admin.widgets import TagFilteredSelectMultiple +from philo.forms.entities import EntityForm, proxy_fields_for_entity_model +from mptt.admin import MPTTModelAdmin COLLAPSE_CLASSES = ('collapse', 'collapse-closed', 'closed',) @@ -12,22 +20,158 @@ class AttributeInline(generic.GenericTabularInline): ct_fk_field = 'entity_object_id' model = Attribute extra = 1 - template = 'admin/philo/edit_inline/tabular_attribute.html' allow_add = True classes = COLLAPSE_CLASSES form = AttributeForm formset = AttributeInlineFormSet - exclude = ['value_object_id'] + fields = ['key', 'value_content_type'] + if 'grappelli' in settings.INSTALLED_APPS: + template = 'admin/philo/edit_inline/grappelli_tabular_attribute.html' + else: + template = 'admin/philo/edit_inline/tabular_attribute.html' +# HACK to bypass model validation for proxy fields +class SpoofedHiddenFields(object): + def __init__(self, proxy_fields, value): + self.value = value + self.spoofed = list(set(value) - set(proxy_fields)) + + def __get__(self, instance, owner): + if instance is None: + return self.spoofed + return self.value + + +class SpoofedAddedFields(SpoofedHiddenFields): + def __init__(self, proxy_fields, value): + self.value = value + self.spoofed = list(set(value) | set(proxy_fields)) + + +def hide_proxy_fields(cls, attname): + val = getattr(cls, attname, []) + proxy_fields = getattr(cls, 'proxy_fields') + if val: + setattr(cls, attname, SpoofedHiddenFields(proxy_fields, val)) + +def add_proxy_fields(cls, attname): + val = getattr(cls, attname, []) + proxy_fields = getattr(cls, 'proxy_fields') + setattr(cls, attname, SpoofedAddedFields(proxy_fields, val)) + + +class EntityAdminMetaclass(admin.ModelAdmin.__metaclass__): + def __new__(cls, name, bases, attrs): + new_class = super(EntityAdminMetaclass, cls).__new__(cls, name, bases, attrs) + hide_proxy_fields(new_class, 'raw_id_fields') + add_proxy_fields(new_class, 'readonly_fields') + return new_class +# END HACK + class EntityAdmin(admin.ModelAdmin): + __metaclass__ = EntityAdminMetaclass + form = EntityForm inlines = [AttributeInline] save_on_top = True + proxy_fields = [] + + def formfield_for_dbfield(self, db_field, **kwargs): + """ + Override the default behavior to provide special formfields for EntityEntitys. + Essentially clones the ForeignKey/ManyToManyField special behavior for the Attribute versions. + """ + if not db_field.choices and isinstance(db_field, (ForeignKeyAttribute, ManyToManyAttribute)): + request = kwargs.pop("request", None) + # Combine the field kwargs with any options for formfield_overrides. + # Make sure the passed in **kwargs override anything in + # formfield_overrides because **kwargs is more specific, and should + # always win. + if db_field.__class__ in self.formfield_overrides: + kwargs = dict(self.formfield_overrides[db_field.__class__], **kwargs) + + # Get the correct formfield. + if isinstance(db_field, ManyToManyAttribute): + formfield = self.formfield_for_manytomanyattribute(db_field, request, **kwargs) + elif isinstance(db_field, ForeignKeyAttribute): + formfield = self.formfield_for_foreignkeyattribute(db_field, request, **kwargs) + + # For non-raw_id fields, wrap the widget with a wrapper that adds + # extra HTML -- the "add other" interface -- to the end of the + # rendered output. formfield can be None if it came from a + # OneToOneField with parent_link=True or a M2M intermediary. + # TODO: Implement this. + #if formfield and db_field.name not in self.raw_id_fields: + # formfield.widget = admin.widgets.RelatedFieldWidgetWrapper(formfield.widget, db_field, self.admin_site) + + return formfield + return super(EntityAdmin, self).formfield_for_dbfield(db_field, **kwargs) + + def formfield_for_foreignkeyattribute(self, db_field, request=None, **kwargs): + """Get a form field for a ForeignKeyAttribute field.""" + db = kwargs.get('using') + if db_field.name in self.raw_id_fields: + kwargs['widget'] = admin.widgets.ForeignKeyRawIdWidget(db_field, db) + #TODO: Add support for radio fields + #elif db_field.name in self.radio_fields: + # kwargs['widget'] = widgets.AdminRadioSelect(attrs={ + # 'class': get_ul_class(self.radio_fields[db_field.name]), + # }) + # kwargs['empty_label'] = db_field.blank and _('None') or None + + return db_field.formfield(**kwargs) + + def formfield_for_manytomanyattribute(self, db_field, request=None, **kwargs): + """Get a form field for a ManyToManyAttribute field.""" + db = kwargs.get('using') + + if db_field.name in self.raw_id_fields: + kwargs['widget'] = admin.widgets.ManyToManyRawIdWidget(db_field, using=db) + kwargs['help_text'] = '' + #TODO: Add support for filtered fields. + #elif db_field.name in (list(self.filter_vertical) + list(self.filter_horizontal)): + # kwargs['widget'] = widgets.FilteredSelectMultiple(db_field.verbose_name, (db_field.name in self.filter_vertical)) + + return db_field.formfield(**kwargs) + + +class TreeAdmin(MPTTModelAdmin): + pass + + +class TreeEntityAdmin(EntityAdmin, TreeAdmin): + pass class TagAdmin(admin.ModelAdmin): list_display = ('name', 'slug') prepopulated_fields = {"slug": ("name",)} search_fields = ["name"] + + def response_add(self, request, obj, post_url_continue='../%s/'): + # If it's an ajax request, return a json response containing the necessary information. + if request.is_ajax(): + return HttpResponse(json.dumps({'pk': escape(obj._get_pk_val()), 'unicode': escape(obj)})) + return super(TagAdmin, self).response_add(request, obj, post_url_continue) + + +class AddTagAdmin(admin.ModelAdmin): + def formfield_for_manytomany(self, db_field, request=None, **kwargs): + """ + Get a form Field for a ManyToManyField. + """ + # If it uses an intermediary model that isn't auto created, don't show + # a field in admin. + if not db_field.rel.through._meta.auto_created: + return None + + if db_field.rel.to == Tag and db_field.name in (list(self.filter_vertical) + list(self.filter_horizontal)): + opts = Tag._meta + if request.user.has_perm(opts.app_label + '.' + opts.get_add_permission()): + kwargs['widget'] = TagFilteredSelectMultiple(db_field.verbose_name, (db_field.name in self.filter_vertical)) + return db_field.formfield(**kwargs) + + return super(AddTagAdmin, self).formfield_for_manytomany(db_field, request, **kwargs) + admin.site.register(Tag, TagAdmin) \ No newline at end of file