django-orchestra-test/orchestra/contrib/miscellaneous/admin.py

124 lines
4.7 KiB
Python

from django import forms
from django.contrib import admin
from django.core.urlresolvers import reverse
from django.db import models
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy as _
from orchestra.admin import ExtendedModelAdmin
from orchestra.admin.utils import admin_link
from orchestra.contrib.accounts.admin import AccountAdminMixin
from orchestra.contrib.accounts.filters import IsActiveListFilter
from orchestra.plugins import PluginModelAdapter
from orchestra.plugins.admin import SelectPluginAdminMixin
from orchestra.utils.python import import_class
from . import settings
from .models import MiscService, Miscellaneous
class MiscServicePlugin(PluginModelAdapter):
model = MiscService
name_field = 'name'
class MiscServiceAdmin(ExtendedModelAdmin):
list_display = (
'name', 'verbose_name', 'num_instances', 'has_identifier', 'has_amount', 'is_active'
)
list_editable = ('is_active',)
list_filter = ('has_identifier', 'has_amount', IsActiveListFilter)
fields = (
'verbose_name', 'name', 'description', 'has_identifier', 'has_amount', 'is_active'
)
prepopulated_fields = {'name': ('verbose_name',)}
change_readonly_fields = ('name',)
def num_instances(self, misc):
""" return num slivers as a link to slivers changelist view """
num = misc.instances__count
url = reverse('admin:miscellaneous_miscellaneous_changelist')
url += '?service__name={}'.format(misc.name)
return mark_safe('<a href="{0}">{1}</a>'.format(url, num))
num_instances.short_description = _("Instances")
num_instances.admin_order_field = 'instances__count'
def get_queryset(self, request):
qs = super(MiscServiceAdmin, self).get_queryset(request)
return qs.annotate(models.Count('instances', distinct=True))
def formfield_for_dbfield(self, db_field, **kwargs):
""" Make value input widget bigger """
if db_field.name == 'description':
kwargs['widget'] = forms.Textarea(attrs={'cols': 70, 'rows': 2})
return super(MiscServiceAdmin, self).formfield_for_dbfield(db_field, **kwargs)
class MiscellaneousAdmin(AccountAdminMixin, SelectPluginAdminMixin, admin.ModelAdmin):
list_display = (
'__str__', 'service_link', 'amount', 'account_link', 'dispaly_active'
)
list_filter = ('service__name', 'is_active')
list_select_related = ('service', 'account')
search_fields = ('identifier', 'description', 'account__username')
plugin_field = 'service'
plugin = MiscServicePlugin
service_link = admin_link('service')
def dispaly_active(self, instance):
return instance.active
dispaly_active.short_description = _("Active")
dispaly_active.boolean = True
dispaly_active.admin_order_field = 'is_active'
def get_service(self, obj):
if obj is None:
return self.plugin.get(self.plugin_value).related_instance
else:
return obj.service
def get_fields(self, request, obj=None):
fields = ['account', 'description', 'is_active']
if obj is not None:
fields = ['account_link', 'description', 'is_active']
service = self.get_service(obj)
if service.has_amount:
fields.insert(-1, 'amount')
if service.has_identifier:
fields.insert(1, 'identifier')
return fields
def get_form(self, request, obj=None, **kwargs):
form = super(SelectPluginAdminMixin, self).get_form(request, obj, **kwargs)
service = self.get_service(obj)
def clean_identifier(self, service=service):
identifier = self.cleaned_data['identifier']
validator_path = settings.MISCELLANEOUS_IDENTIFIER_VALIDATORS.get(service.name, None)
if validator_path:
validator = import_class(validator_path)
validator(identifier)
return identifier
form.clean_identifier = clean_identifier
return form
def formfield_for_dbfield(self, db_field, **kwargs):
""" Make value input widget bigger """
if db_field.name == 'description':
kwargs['widget'] = forms.Textarea(attrs={'cols': 70, 'rows': 4})
return super(MiscellaneousAdmin, self).formfield_for_dbfield(db_field, **kwargs)
def save_model(self, request, obj, form, change):
if not change:
plugin = self.plugin
kwargs = {
plugin.name_field: self.plugin_value
}
setattr(obj, self.plugin_field, plugin.model.objects.get(**kwargs))
obj.save()
admin.site.register(MiscService, MiscServiceAdmin)
admin.site.register(Miscellaneous, MiscellaneousAdmin)