django-orchestra/orchestra/admin/utils.py

135 lines
4.9 KiB
Python
Raw Normal View History

2014-05-08 16:59:35 +00:00
from functools import update_wrapper
from django.conf import settings
from django.contrib import admin
from django.core.urlresolvers import reverse
from django.db import models
from django.utils import importlib
from django.utils.html import escape
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy as _
from orchestra.models.utils import get_field_value
from orchestra.utils.time import timesince, timeuntil
def get_modeladmin(model, import_module=True):
""" returns the modeladmin registred for model """
for k,v in admin.site._registry.iteritems():
if k is model:
2014-07-08 15:19:15 +00:00
return type(v)
2014-05-08 16:59:35 +00:00
if import_module:
# Sometimes the admin module is not yet imported
app_label = model._meta.app_label
for app in settings.INSTALLED_APPS:
if app.endswith(app_label):
app_label = app
importlib.import_module('%s.%s' % (app_label, 'admin'))
return get_modeladmin(model, import_module=False)
def insertattr(model, name, value, weight=0):
""" Inserts attribute to a modeladmin """
2014-07-08 15:19:15 +00:00
modeladmin = model
if models.Model in model.__mro__:
modeladmin = get_modeladmin(model)
2014-05-08 16:59:35 +00:00
# Avoid inlines defined on parent class be shared between subclasses
# Seems that if we use tuples they are lost in some conditions like changing
# the tuple in modeladmin.__init__
if not getattr(modeladmin, name):
setattr(type(modeladmin), name, [])
inserted_attrs = getattr(modeladmin, '__inserted_attrs__', {})
if not name in inserted_attrs:
weights = {}
if hasattr(modeladmin, 'weights') and name in modeladmin.weights:
weights = modeladmin.weights.get(name)
inserted_attrs[name] = [ (attr, weights.get(attr, 0)) for attr in getattr(modeladmin, name) ]
inserted_attrs[name].append((value, weight))
inserted_attrs[name].sort(key=lambda a: a[1])
setattr(modeladmin, name, [ attr[0] for attr in inserted_attrs[name] ])
setattr(modeladmin, '__inserted_attrs__', inserted_attrs)
def wrap_admin_view(modeladmin, view):
""" Add admin authentication to view """
def wrapper(*args, **kwargs):
return modeladmin.admin_site.admin_view(view)(*args, **kwargs)
return update_wrapper(wrapper, view)
def set_default_filter(queryarg, request, value):
""" set default filters for changelist_view """
if queryarg not in request.GET:
q = request.GET.copy()
if callable(value):
value = value(request)
q[queryarg] = value
request.GET = q
request.META['QUERY_STRING'] = request.GET.urlencode()
def link(*args, **kwargs):
""" utility function for creating admin links """
field = args[0] if args else ''
order = kwargs.pop('order', field)
popup = kwargs.pop('popup', False)
def display_link(self, instance):
obj = getattr(instance, field, instance)
if not getattr(obj, 'pk', False):
return '---'
opts = obj._meta
view_name = 'admin:%s_%s_change' % (opts.app_label, opts.model_name)
url = reverse(view_name, args=(obj.pk,))
extra = ''
if popup:
extra = 'onclick="return showAddAnotherPopup(this);"'
return '<a href="%s" %s>%s</a>' % (url, extra, obj)
display_link.allow_tags = True
display_link.short_description = _(field)
display_link.admin_order_field = order
return display_link
def colored(field_name, colours, description='', verbose=False, bold=True):
""" returns a method that will render obj with colored html """
def colored_field(obj, field=field_name, colors=colours, verbose=verbose):
value = escape(get_field_value(obj, field))
color = colors.get(value, "black")
if verbose:
# Get the human-readable value of a choice field
value = getattr(obj, 'get_%s_display' % field)()
colored_value = '<span style="color: %s;">%s</span>' % (color, value)
if bold:
colored_value = '<b>%s</b>' % colored_value
return mark_safe(colored_value)
if not description:
description = field_name.split('__').pop().replace('_', ' ').capitalize()
colored_field.short_description = description
colored_field.allow_tags = True
colored_field.admin_order_field = field_name
return colored_field
def display_timesince(date, double=False):
"""
Format date for messages create_on: show a relative time
with contextual helper to show fulltime format.
"""
if not date:
return 'Never'
date_rel = timesince(date)
if not double:
date_rel = date_rel.split(',')[0]
date_rel += ' ago'
date_abs = date.strftime("%Y-%m-%d %H:%M:%S %Z")
return mark_safe("<span title='%s'>%s</span>" % (date_abs, date_rel))
def display_timeuntil(date):
date_rel = timeuntil(date) + ' left'
date_abs = date.strftime("%Y-%m-%d %H:%M:%S %Z")
return mark_safe("<span title='%s'>%s</span>" % (date_abs, date_rel))