/usr/share/pyshared/debug_toolbar/panels/template.py is in python-django-debug-toolbar 1:0+git201107220111-96e46c6-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | from os.path import normpath
from pprint import pformat
from django import http
from django.conf import settings
from django.template.context import get_standard_processors
from django.template.loader import render_to_string
from django.test.signals import template_rendered
from django.utils.translation import ugettext_lazy as _
from debug_toolbar.panels import DebugPanel
# Code taken and adapted from Simon Willison and Django Snippets:
# http://www.djangosnippets.org/snippets/766/
# Monkeypatch instrumented test renderer from django.test.utils - we could use
# django.test.utils.setup_test_environment for this but that would also set up
# e-mail interception, which we don't want
from django.test.utils import instrumented_test_render
from django.template import Template
if not hasattr(Template, '_render'): # Django < 1.2
if Template.render != instrumented_test_render:
Template.original_render = Template.render
Template.render = instrumented_test_render
else:
if Template._render != instrumented_test_render:
Template.original_render = Template._render
Template._render = instrumented_test_render
# MONSTER monkey-patch
old_template_init = Template.__init__
def new_template_init(self, template_string, origin=None, name='<Unknown Template>'):
old_template_init(self, template_string, origin, name)
self.origin = origin
Template.__init__ = new_template_init
class TemplateDebugPanel(DebugPanel):
"""
A panel that lists all templates used during processing of a response.
"""
name = 'Template'
has_content = True
def __init__(self, *args, **kwargs):
super(self.__class__, self).__init__(*args, **kwargs)
self.templates = []
template_rendered.connect(self._store_template_info)
def _store_template_info(self, sender, **kwargs):
context_data = kwargs['context']
context_list = []
for context_layer in context_data.dicts:
temp_layer = {}
if hasattr(context_layer, 'items'):
for key, value in context_layer.items():
# Replace any request elements - they have a large
# unicode representation and the request data is
# already made available from the Request Vars panel.
if isinstance(value, http.HttpRequest):
temp_layer[key] = '<<request>>'
# Replace the debugging sql_queries element. The SQL
# data is already made available from the SQL panel.
elif key == 'sql_queries' and isinstance(value, list):
temp_layer[key] = '<<sql_queries>>'
# Replace LANGUAGES, which is available in i18n context processor
elif key == 'LANGUAGES' and isinstance(value, tuple):
temp_layer[key] = '<<languages>>'
else:
temp_layer[key] = value
try:
context_list.append(pformat(temp_layer))
except UnicodeEncodeError:
pass
kwargs['context'] = context_list
self.templates.append(kwargs)
def nav_title(self):
return _('Templates')
def title(self):
num_templates = len([t for t in self.templates
if not (t['template'].name and t['template'].name.startswith('debug_toolbar/'))])
return _('Templates (%(num_templates)s rendered)') % {'num_templates': num_templates}
def url(self):
return ''
def process_request(self, request):
self.request = request
def content(self):
context_processors = dict(
[
("%s.%s" % (k.__module__, k.__name__),
pformat(k(self.request))) for k in get_standard_processors()
]
)
template_context = []
for template_data in self.templates:
info = {}
# Clean up some info about templates
template = template_data.get('template', None)
# Skip templates that we are generating through the debug toolbar.
if template.name and template.name.startswith('debug_toolbar/'):
continue
if not hasattr(template, 'origin'):
continue
if template.origin and template.origin.name:
template.origin_name = template.origin.name
else:
template.origin_name = 'No origin'
info['template'] = template
# Clean up context for better readability
if getattr(settings, 'DEBUG_TOOLBAR_CONFIG', {}).get('SHOW_TEMPLATE_CONTEXT', True):
context_list = template_data.get('context', [])
info['context'] = '\n'.join(context_list)
template_context.append(info)
context = self.context.copy()
context.update({
'templates': template_context,
'template_dirs': [normpath(x) for x in settings.TEMPLATE_DIRS],
'context_processors': context_processors,
})
return render_to_string('debug_toolbar/panels/templates.html', context)
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