from django.db import models
from django import forms
from django.utils.translation import ugettext as _
from django.utils.safestring import mark_safe
from xadmin.sites import site
from xadmin.views import BaseAdminPlugin, ModelFormAdminView, DetailAdminView, ListAdminView
def get_gallery_modal():
return """
""" % (_('Previous'), _('Next'), _('Slideshow'), _('Download'))
class AdminImageField(forms.ImageField):
def widget_attrs(self, widget):
return {'label': self.label}
class AdminImageWidget(forms.FileInput):
"""
A ImageField Widget that shows its current value if it has one.
"""
def __init__(self, attrs={}):
super(AdminImageWidget, self).__init__(attrs)
def render(self, name, value, attrs=None, renderer=None):
output = []
if value and hasattr(value, "url"):
label = self.attrs.get('label', name)
output.append('
%s ' %
(value.url, label, value.url, _('Change:')))
output.append(super(AdminImageWidget, self).render(name, value, attrs, renderer))
return mark_safe(u''.join(output))
class ModelDetailPlugin(BaseAdminPlugin):
def __init__(self, admin_view):
super(ModelDetailPlugin, self).__init__(admin_view)
self.include_image = False
def get_field_attrs(self, attrs, db_field, **kwargs):
if isinstance(db_field, models.ImageField):
attrs['widget'] = AdminImageWidget
attrs['form_class'] = AdminImageField
self.include_image = True
return attrs
def get_field_result(self, result, field_name):
if isinstance(result.field, models.ImageField):
if result.value:
img = getattr(result.obj, field_name)
result.text = mark_safe('' % (img.url, result.label, img.url))
self.include_image = True
return result
# Media
def get_media(self, media):
if self.include_image:
media = media + self.vendor('image-gallery.js',
'image-gallery.css')
return media
def block_before_fieldsets(self, context, node):
if self.include_image:
return ''
def block_after_fieldsets(self, context, node):
if self.include_image:
return "
"
def block_extrabody(self, context, node):
if self.include_image:
return get_gallery_modal()
class ModelListPlugin(BaseAdminPlugin):
list_gallery = False
def init_request(self, *args, **kwargs):
return bool(self.list_gallery)
# Media
def get_media(self, media):
return media + self.vendor('image-gallery.js', 'image-gallery.css')
def block_results_top(self, context, node):
return ''
def block_results_bottom(self, context, node):
return "
"
def block_extrabody(self, context, node):
return get_gallery_modal()
site.register_plugin(ModelDetailPlugin, DetailAdminView)
site.register_plugin(ModelDetailPlugin, ModelFormAdminView)
site.register_plugin(ModelListPlugin, ListAdminView)