109 lines
4 KiB
Python
109 lines
4 KiB
Python
from django.conf.urls import patterns, url
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from django.contrib.admin.utils import unquote
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from django.shortcuts import render, redirect
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from django.utils.text import camel_case_to_spaces
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from django.utils.translation import ugettext_lazy as _
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from orchestra.admin.utils import wrap_admin_view
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from orchestra.utils.functional import cached
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class SelectPluginAdminMixin(object):
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plugin = None
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plugin_field = None
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def get_form(self, request, obj=None, **kwargs):
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if obj:
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self.form = getattr(obj, '%s_class' % self.plugin_field)().get_form()
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else:
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self.form = self.plugin.get_plugin(self.plugin_value)().get_form()
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return super(SelectPluginAdminMixin, self).get_form(request, obj=obj, **kwargs)
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def get_urls(self):
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""" Hooks select account url """
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urls = super(SelectPluginAdminMixin, self).get_urls()
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opts = self.model._meta
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info = opts.app_label, opts.model_name
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select_urls = patterns("",
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url("/select-plugin/$",
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wrap_admin_view(self, self.select_plugin_view),
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name='%s_%s_select_plugin' % info),
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)
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return select_urls + urls
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def select_plugin_view(self, request):
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opts = self.model._meta
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context = {
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'opts': opts,
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'app_label': opts.app_label,
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'field': self.plugin_field,
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'field_name': opts.get_field_by_name(self.plugin_field)[0].verbose_name,
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'plugin': self.plugin,
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'plugins': self.plugin.get_plugins(),
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}
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template = 'admin/plugins/select_plugin.html'
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return render(request, template, context)
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def add_view(self, request, form_url='', extra_context=None):
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""" Redirects to select account view if required """
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if request.user.is_superuser:
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plugin_value = request.GET.get(self.plugin_field) or request.POST.get(self.plugin_field)
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if plugin_value or len(self.plugin.get_plugins()) == 1:
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self.plugin_value = plugin_value
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if not plugin_value:
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self.plugin_value = self.plugin.get_plugins()[0].get_name()
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context = {
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'title': _("Add new %s") % camel_case_to_spaces(self.plugin_value),
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}
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context.update(extra_context or {})
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return super(SelectPluginAdminMixin, self).add_view(request, form_url=form_url,
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extra_context=context)
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return redirect('./select-plugin/?%s' % request.META['QUERY_STRING'])
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def change_view(self, request, object_id, form_url='', extra_context=None):
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obj = self.get_object(request, unquote(object_id))
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plugin_value = getattr(obj, self.plugin_field)
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context = {
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'title': _("Change %s") % camel_case_to_spaces(str(plugin_value)),
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}
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context.update(extra_context or {})
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return super(SelectPluginAdminMixin, self).change_view(request, object_id,
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form_url=form_url, extra_context=context)
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def save_model(self, request, obj, form, change):
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if not change:
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setattr(obj, self.plugin_field, self.plugin_value)
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obj.save()
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class PluginAdapter(object):
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""" Adapter class for using model classes as plugins """
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model = None
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name_field = None
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def __init__(self, instance):
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self.instance = instance
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@classmethod
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@cached
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def get_plugins(cls):
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plugins = []
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for instance in cls.model.objects.filter(is_active=True):
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plugins.append(cls(instance))
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return plugins
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@classmethod
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def get_plugin(cls, name):
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return cls(cls.model.objects.get(**{cls.name_field:name}))
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@property
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def verbose_name(self):
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return self.instance.verbose_name or str(getattr(self.instance, self.name_field))
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def get_name(self):
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return getattr(self.instance, self.name_field)
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def __call__(self):
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return self
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