127 lines
5.0 KiB
Python
127 lines
5.0 KiB
Python
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import re
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from django.urls import re_path as 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.translation import gettext_lazy as _
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from orchestra.admin.utils import wrap_admin_view
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class SelectPluginAdminMixin(object):
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plugin = None
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plugin_field = None
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plugin_title = None
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def get_form(self, request, obj=None, **kwargs):
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if obj:
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try:
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plugin = getattr(obj, '%s_instance' % self.plugin_field)
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except KeyError:
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plugin_name = getattr(obj, self.plugin_field)
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raise KeyError(_("Plugin '%s' is not available.") % plugin_name)
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else:
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self.form = getattr(plugin, 'get_change_form', plugin.get_form)()
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else:
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plugin = self.plugin.get(self.plugin_value)()
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self.form = plugin.get_form()
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self.plugin_instance = plugin
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return super(SelectPluginAdminMixin, self).get_form(request, obj, **kwargs)
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def get_fields(self, request, obj=None):
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""" Try to maintain original field ordering """
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fields = super(SelectPluginAdminMixin, self).get_fields(request, obj)
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head_fields = list(self.get_readonly_fields(request, obj))
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head, tail = [], []
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for field in fields:
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if field in head_fields:
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head.append(field)
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else:
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tail.append(field)
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return head + tail
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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 = [
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url("add/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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'plugin_title': self.plugin_title or 'Plugins',
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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(self.plugin_field).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 get_plugin_value(self, request):
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plugin_value = request.GET.get(self.plugin_field) or request.POST.get(self.plugin_field)
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if not plugin_value and request.method == 'POST':
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# HACK baceuse django add_preserved_filters removes extising queryargs
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value = re.search(r"%s=([^&^']+)[&']" % self.plugin_field,
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request.META.get('HTTP_REFERER', ''))
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if value:
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plugin_value = value.groups()[0]
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return plugin_value
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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 = self.get_plugin_value(request)
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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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plugin = self.plugin.get(self.plugin_value)
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context = {
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'title': _("Add new %s") % plugin.verbose_name,
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}
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context.update(extra_context or {})
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return super(SelectPluginAdminMixin, self).add_view(
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request, form_url=form_url, 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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try:
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verbose = getattr(obj, '%s_class' % self.plugin_field).verbose_name
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except KeyError:
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raise KeyError(_("Plugin '%s' is not available.") % getattr(obj, self.plugin_field))
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context = {
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'title': _("Change %s") % verbose,
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}
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context.update(extra_context or {})
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return super(SelectPluginAdminMixin, self).change_view(
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request, object_id, 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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def display_plugin_field(field_name):
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def inner(modeladmin, obj, field_name=field_name):
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try:
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getattr(obj, '%s_class' % field_name)
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except KeyError:
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value = getattr(obj, field_name)
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return "<span style='color:red;' title='Not available'>%s</span>" % value
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return getattr(obj, 'get_%s_display' % field_name)()
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inner.short_description = field_name
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inner.admin_order_field = field_name
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inner.allow_tags = True
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return inner
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