127 lines
5.1 KiB
Python
127 lines
5.1 KiB
Python
import re
|
|
|
|
from django.conf.urls import url
|
|
from django.contrib.admin.utils import unquote
|
|
from django.shortcuts import render, redirect
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from orchestra.admin.utils import wrap_admin_view
|
|
|
|
|
|
class SelectPluginAdminMixin(object):
|
|
plugin = None
|
|
plugin_field = None
|
|
plugin_title = None
|
|
|
|
def get_form(self, request, obj=None, **kwargs):
|
|
if obj:
|
|
try:
|
|
plugin = getattr(obj, '%s_instance' % self.plugin_field)
|
|
except KeyError:
|
|
plugin_name = getattr(obj, self.plugin_field)
|
|
raise KeyError(_("Plugin '%s' is not available.") % plugin_name)
|
|
else:
|
|
self.form = getattr(plugin, 'get_change_form', plugin.get_form)()
|
|
else:
|
|
plugin = self.plugin.get(self.plugin_value)()
|
|
self.form = plugin.get_form()
|
|
self.plugin_instance = plugin
|
|
return super(SelectPluginAdminMixin, self).get_form(request, obj, **kwargs)
|
|
|
|
def get_fields(self, request, obj=None):
|
|
""" Try to maintain original field ordering """
|
|
fields = super(SelectPluginAdminMixin, self).get_fields(request, obj)
|
|
head_fields = list(self.get_readonly_fields(request, obj))
|
|
head, tail = [], []
|
|
for field in fields:
|
|
if field in head_fields:
|
|
head.append(field)
|
|
else:
|
|
tail.append(field)
|
|
return head + tail
|
|
|
|
def get_urls(self):
|
|
""" Hooks select account url """
|
|
urls = super(SelectPluginAdminMixin, self).get_urls()
|
|
opts = self.model._meta
|
|
info = opts.app_label, opts.model_name
|
|
select_urls = [
|
|
url("/select-plugin/$",
|
|
wrap_admin_view(self, self.select_plugin_view),
|
|
name='%s_%s_select_plugin' % info),
|
|
]
|
|
return select_urls + urls
|
|
|
|
def select_plugin_view(self, request):
|
|
opts = self.model._meta
|
|
context = {
|
|
'plugin_title': self.plugin_title or 'Plugins',
|
|
'opts': opts,
|
|
'app_label': opts.app_label,
|
|
'field': self.plugin_field,
|
|
'field_name': opts.get_field_by_name(self.plugin_field)[0].verbose_name,
|
|
'plugin': self.plugin,
|
|
'plugins': self.plugin.get_plugins(),
|
|
}
|
|
template = 'admin/plugins/select_plugin.html'
|
|
return render(request, template, context)
|
|
|
|
def get_plugin_value(self, request):
|
|
plugin_value = request.GET.get(self.plugin_field) or request.POST.get(self.plugin_field)
|
|
if not plugin_value and request.method == 'POST':
|
|
# HACK baceuse django add_preserved_filters removes extising queryargs
|
|
value = re.search(r"%s=([^&^']+)[&']" % self.plugin_field,
|
|
request.META.get('HTTP_REFERER', ''))
|
|
if value:
|
|
plugin_value = value.groups()[0]
|
|
return plugin_value
|
|
|
|
def add_view(self, request, form_url='', extra_context=None):
|
|
""" Redirects to select account view if required """
|
|
if request.user.is_superuser:
|
|
plugin_value = self.get_plugin_value(request)
|
|
if plugin_value or len(self.plugin.get_plugins()) == 1:
|
|
self.plugin_value = plugin_value
|
|
if not plugin_value:
|
|
self.plugin_value = self.plugin.get_plugins()[0].get_name()
|
|
plugin = self.plugin.get(self.plugin_value)
|
|
context = {
|
|
'title': _("Add new %s") % plugin.verbose_name,
|
|
}
|
|
context.update(extra_context or {})
|
|
return super(SelectPluginAdminMixin, self).add_view(
|
|
request, form_url=form_url, extra_context=context)
|
|
return redirect('./select-plugin/?%s' % request.META['QUERY_STRING'])
|
|
|
|
def change_view(self, request, object_id, form_url='', extra_context=None):
|
|
obj = self.get_object(request, unquote(object_id))
|
|
try:
|
|
verbose = getattr(obj, '%s_class' % self.plugin_field).verbose_name
|
|
except KeyError:
|
|
raise KeyError(_("Plugin '%s' is not available.") % getattr(obj, self.plugin_field))
|
|
context = {
|
|
'title': _("Change %s") % verbose,
|
|
}
|
|
context.update(extra_context or {})
|
|
return super(SelectPluginAdminMixin, self).change_view(
|
|
request, object_id, form_url=form_url, extra_context=context)
|
|
|
|
def save_model(self, request, obj, form, change):
|
|
if not change:
|
|
setattr(obj, self.plugin_field, self.plugin_value)
|
|
obj.save()
|
|
|
|
|
|
def display_plugin_field(field_name):
|
|
def inner(modeladmin, obj, field_name=field_name):
|
|
try:
|
|
plugin_class = getattr(obj, '%s_class' % field_name)
|
|
except KeyError:
|
|
value = getattr(obj, field_name)
|
|
return "<span style='color:red;' title='Not available'>%s</span>" % value
|
|
return getattr(obj, 'get_%s_display' % field_name)()
|
|
inner.short_description = field_name
|
|
inner.admin_order_field = field_name
|
|
inner.allow_tags = True
|
|
return inner
|