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"""
The main DebugToolbar class that loads and renders the Toolbar.
"""
from django.template.loader import render_to_string
class DebugToolbar(object):
def __init__(self, request):
self.request = request
self.panels = []
self.config = {
'INTERCEPT_REDIRECTS': True,
}
# Override this tuple by copying to settings.py as `DEBUG_TOOLBAR_PANELS`
self.default_panels = (
'debug_toolbar.panels.version.VersionDebugPanel',
'debug_toolbar.panels.timer.TimerDebugPanel',
'debug_toolbar.panels.settings_vars.SettingsVarsDebugPanel',
'debug_toolbar.panels.headers.HeaderDebugPanel',
'debug_toolbar.panels.request_vars.RequestVarsDebugPanel',
'debug_toolbar.panels.sql.SQLDebugPanel',
'debug_toolbar.panels.template.TemplateDebugPanel',
#'debug_toolbar.panels.cache.CacheDebugPanel',
'debug_toolbar.panels.signals.SignalDebugPanel',
'debug_toolbar.panels.logger.LoggingPanel',
)
self.load_panels()
def load_panels(self):
"""
Populate debug panels
"""
from django.conf import settings
from django.core import exceptions
# Check if settings has a DEBUG_TOOLBAR_PANELS, otherwise use default
if hasattr(settings, 'DEBUG_TOOLBAR_PANELS'):
self.default_panels = settings.DEBUG_TOOLBAR_PANELS
# Check if settings has a DEBUG_TOOLBAR_CONFIG and updated config
if hasattr(settings, 'DEBUG_TOOLBAR_CONFIG'):
self.config.update(settings.DEBUG_TOOLBAR_CONFIG)
for panel_path in self.default_panels:
try:
dot = panel_path.rindex('.')
except ValueError:
raise exceptions.ImproperlyConfigured, '%s isn\'t a debug panel module' % panel_path
panel_module, panel_classname = panel_path[:dot], panel_path[dot+1:]
try:
mod = __import__(panel_module, {}, {}, [''])
except ImportError, e:
raise exceptions.ImproperlyConfigured, 'Error importing debug panel %s: "%s"' % (panel_module, e)
try:
panel_class = getattr(mod, panel_classname)
except AttributeError:
raise exceptions.ImproperlyConfigured, 'Toolbar Panel module "%s" does not define a "%s" class' % (panel_module, panel_classname)
try:
panel_instance = panel_class()
except:
print panel_class
raise # Bubble up problem loading panel
self.panels.append(panel_instance)
def render_toolbar(self):
"""
Renders the overall Toolbar with panels inside.
"""
return render_to_string('debug_toolbar/base.html', {
'panels': self.panels,
'BASE_URL': self.request.META.get('SCRIPT_NAME', ''),
})
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