145 lines
5.3 KiB
Python
145 lines
5.3 KiB
Python
from django.contrib import admin, messages
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from django.contrib.contenttypes import generic
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from django.utils.functional import cached_property
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from django.utils.html import escape
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from django.utils.translation import ugettext_lazy as _
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from djcelery.humanize import naturaldate
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from orchestra.admin import ExtendedModelAdmin
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from orchestra.admin.filters import UsedContentTypeFilter
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from orchestra.admin.utils import insertattr, get_modeladmin, link
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from orchestra.core import services
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from orchestra.utils import running_syncdb
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from .forms import ResourceForm
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from .models import Resource, ResourceData, MonitorData
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class ResourceAdmin(ExtendedModelAdmin):
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list_display = (
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'id', 'name', 'verbose_name', 'content_type', 'period', 'ondemand',
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'default_allocation', 'disable_trigger', 'crontab',
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)
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list_filter = (UsedContentTypeFilter, 'period', 'ondemand', 'disable_trigger')
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fieldsets = (
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(None, {
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'fields': ('name', 'content_type', 'period'),
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}),
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(_("Configuration"), {
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'fields': ('verbose_name', 'unit', 'scale', 'ondemand',
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'default_allocation', 'disable_trigger', 'is_active'),
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}),
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(_("Monitoring"), {
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'fields': ('monitors', 'crontab'),
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}),
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)
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change_readonly_fields = ('name', 'content_type', 'period')
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def add_view(self, request, **kwargs):
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""" Warning user if the node is not fully configured """
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if request.method == 'POST':
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messages.warning(request, _(
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"Restarting orchestra and celerybeat is required to fully apply changes. "
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"Remember that new allocated values will be applied when objects are saved."
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))
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return super(ResourceAdmin, self).add_view(request, **kwargs)
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def save_model(self, request, obj, form, change):
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super(ResourceAdmin, self).save_model(request, obj, form, change)
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model = obj.content_type.model_class()
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modeladmin = type(get_modeladmin(model))
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resources = obj.content_type.resource_set.filter(is_active=True)
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inlines = []
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for inline in modeladmin.inlines:
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if inline.model is ResourceData:
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inline = resource_inline_factory(resources)
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inlines.append(inline)
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modeladmin.inlines = inlines
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def formfield_for_dbfield(self, db_field, **kwargs):
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""" filter service content_types """
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if db_field.name == 'content_type':
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models = [ model._meta.model_name for model in services.get() ]
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kwargs['queryset'] = db_field.rel.to.objects.filter(model__in=models)
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return super(ResourceAdmin, self).formfield_for_dbfield(db_field, **kwargs)
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class ResourceDataAdmin(admin.ModelAdmin):
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list_display = (
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'id', 'resource', 'used', 'allocated', 'last_update', 'content_object_link'
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)
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list_filter = ('resource',)
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readonly_fields = ('content_object_link',)
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def content_object_link(self, data):
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return link('content_object')(self, data)
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content_object_link.allow_tags = True
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content_object_link.short_description = _("Content object")
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class MonitorDataAdmin(admin.ModelAdmin):
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list_display = ('id', 'monitor', 'date', 'value', 'content_object_link')
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list_filter = ('monitor',)
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readonly_fields = ('content_object_link',)
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def content_object_link(self, data):
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return link('content_object')(self, data)
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content_object_link.allow_tags = True
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content_object_link.short_description = _("Content object")
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admin.site.register(Resource, ResourceAdmin)
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admin.site.register(ResourceData, ResourceDataAdmin)
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admin.site.register(MonitorData, MonitorDataAdmin)
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# Mokey-patching
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def resource_inline_factory(resources):
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class ResourceInlineFormSet(generic.BaseGenericInlineFormSet):
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def total_form_count(self):
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return len(resources)
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@cached_property
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def forms(self):
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forms = []
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for i, resource in enumerate(resources):
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forms.append(self._construct_form(i, resource=resource))
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return forms
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class ResourceInline(generic.GenericTabularInline):
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model = ResourceData
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verbose_name_plural = _("resources")
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form = ResourceForm
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formset = ResourceInlineFormSet
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can_delete = False
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fields = (
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'verbose_name', 'used', 'display_last_update', 'allocated', 'unit'
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)
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readonly_fields = ('used', 'display_last_update')
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class Media:
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css = {
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'all': ('orchestra/css/hide-inline-id.css',)
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}
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def has_add_permission(self, *args, **kwargs):
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""" Hidde add another """
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return False
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def display_last_update(self, data):
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return '<div title="{0}">{1}</div>'.format(
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escape(str(data.last_update)), escape(naturaldate(data.last_update)),
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)
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display_last_update.short_description = _("last update")
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display_last_update.allow_tags = True
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return ResourceInline
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if not running_syncdb():
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# not run during syncdb
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for resources in Resource.group_by_content_type():
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inline = resource_inline_factory(resources)
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model = resources[0].content_type.model_class()
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insertattr(model, 'inlines', inline)
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