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"""
The main DebugToolbar class that loads and renders the Toolbar.
"""
class DebugToolbar(object):
def __init__(self):
self.panels = []
self.panel_list = []
self.content_list = []
def load_panels(self):
"""
Populate debug panel lists from settings.DEBUG_TOOLBAR_PANELS.
"""
from django.conf import settings
from django.core import exceptions
for panel_path in settings.DEBUG_TOOLBAR_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:
continue # Some problem loading panel
self.panels.append(panel_instance)
def render_panels(self):
"""
Renders each panel.
"""
for panel in self.panels:
div_id = 'djDebug%sPanel' % (panel.title().replace(' ', ''))
self.panel_list.append('<li><a title="%(title)s" href="%(url)s">%(title)s</a></li>' % ({
'title': panel.title(),
'url': panel.url() or '#',
}))
self.content_list.append('<div id="%(div_id)s" class="panelContent"><h1>%(title)s</h1>%(content)s</div>' % ({
'div_id': div_id,
'title': panel.title(),
'content': panel.content(),
}))
def render_toolbar(self):
"""
Renders the overall Toolbar with panels inside.
"""
self.render_panels()
template = """
<div id="djDebugToolbar">
<ul id="djDebugPanelList">
%(panels)s
</ul>
%(contents)s
</div>
"""
context = {
'panels': ''.join(self.panel_list),
'contents': ''.join(self.content_list),
}
return template % context
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