148 lines
5.0 KiB
Python
148 lines
5.0 KiB
Python
from django.contrib import admin
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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 orchestra.admin.html import monospace_format
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from orchestra.admin.utils import admin_link, admin_date, admin_colored
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from .backends import ServiceBackend
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from .models import Server, Route, BackendLog, BackendOperation
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from .widgets import RouteBackendSelect
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STATE_COLORS = {
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BackendLog.RECEIVED: 'darkorange',
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BackendLog.TIMEOUT: 'red',
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BackendLog.STARTED: 'blue',
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BackendLog.SUCCESS: 'green',
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BackendLog.FAILURE: 'red',
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BackendLog.ERROR: 'red',
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BackendLog.REVOKED: 'magenta',
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}
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class RouteAdmin(admin.ModelAdmin):
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list_display = [
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'backend', 'host', 'match', 'display_model', 'display_actions', 'is_active'
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]
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list_editable = ['host', 'match', 'is_active']
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list_filter = ['host', 'is_active', 'backend']
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ordering = ('backend',)
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BACKEND_HELP_TEXT = {
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backend: "This backend operates over '%s'" % ServiceBackend.get_backend(backend).model
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for backend, __ in ServiceBackend.get_choices()
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}
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DEFAULT_MATCH = {
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backend.get_name(): backend.default_route_match for backend in ServiceBackend.get_backends(active=False)
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}
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def display_model(self, route):
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try:
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return escape(route.backend_class.model)
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except KeyError:
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return "<span style='color: red;'>NOT AVAILABLE</span>"
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display_model.short_description = _("model")
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display_model.allow_tags = True
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def display_actions(self, route):
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try:
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return '<br>'.join(route.backend_class.get_actions())
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except KeyError:
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return "<span style='color: red;'>NOT AVAILABLE</span>"
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display_actions.short_description = _("actions")
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display_actions.allow_tags = True
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def formfield_for_dbfield(self, db_field, **kwargs):
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""" Provides dynamic help text on backend form field """
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if db_field.name == 'backend':
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kwargs['widget'] = RouteBackendSelect('this.id', self.BACKEND_HELP_TEXT, self.DEFAULT_MATCH)
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return super(RouteAdmin, self).formfield_for_dbfield(db_field, **kwargs)
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def get_form(self, request, obj=None, **kwargs):
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""" Include dynamic help text for existing objects """
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form = super(RouteAdmin, self).get_form(request, obj, **kwargs)
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if obj:
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form.base_fields['backend'].help_text = self.BACKEND_HELP_TEXT.get(obj.backend, '')
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return form
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class BackendOperationInline(admin.TabularInline):
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model = BackendOperation
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fields = ('action', 'instance_link')
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readonly_fields = ('action', 'instance_link')
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extra = 0
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can_delete = False
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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 instance_link(self, operation):
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try:
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return admin_link('instance')(self, operation)
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except:
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return _("deleted {0} {1}").format(
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escape(operation.content_type), escape(operation.object_id)
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)
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instance_link.allow_tags = True
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instance_link.short_description = _("Instance")
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def has_add_permission(self, *args, **kwargs):
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return False
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def get_queryset(self, request):
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queryset = super(BackendOperationInline, self).get_queryset(request)
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return queryset.prefetch_related('instance')
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def display_mono(field):
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def display(self, log):
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return monospace_format(escape(getattr(log, field)))
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display.short_description = _(field)
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return display
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class BackendLogAdmin(admin.ModelAdmin):
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list_display = (
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'id', 'backend', 'server_link', 'display_state', 'exit_code',
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'display_created', 'execution_time',
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)
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list_display_links = ('id', 'backend')
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list_filter = ('state', 'backend')
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inlines = [BackendOperationInline]
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fields = [
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'backend', 'server_link', 'state', 'mono_script', 'mono_stdout',
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'mono_stderr', 'mono_traceback', 'exit_code', 'task_id', 'display_created',
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'execution_time'
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]
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readonly_fields = fields
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server_link = admin_link('server')
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display_created = admin_date('created_at', short_description=_("Created"))
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display_state = admin_colored('state', colors=STATE_COLORS)
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mono_script = display_mono('script')
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mono_stdout = display_mono('stdout')
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mono_stderr = display_mono('stderr')
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mono_traceback = display_mono('traceback')
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def get_queryset(self, request):
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""" Order by structured name and imporve performance """
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qs = super(BackendLogAdmin, self).get_queryset(request)
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return qs.select_related('server').defer('script', 'stdout')
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def has_add_permission(self, *args, **kwargs):
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return False
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class ServerAdmin(admin.ModelAdmin):
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list_display = ('name', 'address', 'os')
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list_filter = ('os',)
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admin.site.register(Server, ServerAdmin)
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admin.site.register(BackendLog, BackendLogAdmin)
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admin.site.register(Route, RouteAdmin)
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