class Breadcrumbs(object):
'''A lazy class for building a site breadcrumb trail to keep track
of current request location. It renders as a ``ul`` element
with class name defaulted to ``"breadcrumbs"``.
'''
def __init__(self,
min_length=2,
divider=None,
cn=None,
render_empty=True,
tag='div'):
divider = divider or '›'
self.divider = "<span class='divider'>" + divider + "</span>"
self.min_length = min_length
self.render_empty = render_empty
self.widget = Widget(tag, cn=cn or classes.breadcrumbs)
def items(self, request):
crumbs = []
while request:
crumbs.append(request)
request = request.parent
cutoff = self.min_length - 1
if cutoff:
crumbs = crumbs[:-cutoff]
position = len(crumbs)
for request in crumbs:
li = Widget('li', cn='position{0}'.format(position))
name = request.view.breadcrumb(request)
if position < len(crumbs):
url = request.url
title = request.title
a = Widget('a', name, title=title, href=url)
li.add(a)
li.add(self.divider)
else:
li.add(name)
position -= 1
yield li
def render(self, request):
if request.valid:
ul = Widget('ul')
for li in reversed(tuple(self.items(request))):
ul.add(li)
if ul:
self.widget.add(ul)
return self.widget.render(request)
if self.render_empty:
return NON_BREACKING_SPACE
else:
return ''
def render(self, request):
if request.valid:
ul = Widget("ul")
for li in reversed(tuple(self.items(request))):
ul.add(li)
if ul:
self.widget.add(ul)
return self.widget.render(request)
if self.render_empty:
return NON_BREACKING_SPACE
else:
return ""
def render(self, request):
if request.valid:
ul = Widget('ul')
for li in reversed(tuple(self.items(request))):
ul.add(li)
if ul:
self.widget.add(ul)
return self.widget.render(request)
if self.render_empty:
return NON_BREACKING_SPACE
else:
return ''
class Breadcrumbs(object):
"""A lazy class for building a site breadcrumb trail to keep track
of current request location. It renders as a ``ul`` element
with class name defaulted to ``"breadcrumbs"``.
"""
def __init__(self, min_length=2, divider=None, cn=None, render_empty=True, tag="div"):
divider = divider or "›"
self.divider = "<span class='divider'>" + divider + "</span>"
self.min_length = min_length
self.render_empty = render_empty
self.widget = Widget(tag, cn=cn or classes.breadcrumbs)
def items(self, request):
crumbs = []
while request:
crumbs.append(request)
request = request.parent
cutoff = self.min_length - 1
if cutoff:
crumbs = crumbs[:-cutoff]
position = len(crumbs)
for request in crumbs:
li = Widget("li", cn="position{0}".format(position))
name = request.view.breadcrumb(request)
if position < len(crumbs):
url = request.url
title = request.title
a = Widget("a", name, title=title, href=url)
li.add(a)
li.add(self.divider)
else:
li.add(name)
position -= 1
yield li
def render(self, request):
if request.valid:
ul = Widget("ul")
for li in reversed(tuple(self.items(request))):
ul.add(li)
if ul:
self.widget.add(ul)
return self.widget.render(request)
if self.render_empty:
return NON_BREACKING_SPACE
else:
return ""
def render_instance_default(self, request, instance, **kwargs):
mkp = markups.get(instance.markup)
text = instance.body
if mkp:
text = mkp(request, text)
w = Widget('div', text, cn=classes.sitecontent)
if instance.javascript:
g = script_template % instance.javascript
script = g.replace('\r\n', '\n')
if request.is_xhr:
w.add(script)
else:
request.media.add(media.Media(js=[script]))
return w.render(request)
def render_instance_default(self, request, instance, **kwargs):
mkp = markups.get(instance.markup)
text = instance.body
if mkp:
text = mkp(request, text)
w = Widget('div', text, cn=classes.sitecontent)
if instance.javascript:
g = script_template % instance.javascript
script = g.replace('\r\n','\n')
if request.is_xhr:
w.add(script)
else:
request.media.add(media.Media(js=[script]))
return w.render(request)
def navstream(request, urlselects, secondary_after, level):
for request, nav in sorted(((c, c.in_navigation) for c in request.auth_children()), key=lambda x: x[1]):
if not nav:
continue
link = application_link(request, asbutton=False)
li = Widget("li", link)
secondary = secondary_after and nav > secondary_after
if link.attrs["href"] in urlselects:
li.addClass(classes.state_active)
if level:
slis = list(navstream(request, urlselects, None, level - 1))
if slis:
ul = Widget("ul")
for sli, _ in slis:
ul.add(sli)
li.add(ul)
yield li, secondary
def navstream(request, urlselects, secondary_after, level):
for request, nav in sorted(((c, c.in_navigation)\
for c in request.auth_children()), key=lambda x : x[1]):
if not nav:
continue
link = application_link(request, asbutton=False)
li = Widget('li', link)
secondary = secondary_after and nav > secondary_after
if link.attrs['href'] in urlselects:
li.addClass(classes.state_active)
if level:
slis = list(navstream(request, urlselects, None, level - 1))
if slis:
ul = Widget('ul')
for sli, _ in slis:
ul.add(sli)
li.add(ul)
yield li, secondary
def profile(request, callback, Response):
tmp = tempfile.mktemp()
out = Stream()
prof = profiler.Profile()
response = prof.runcall(callback)
prof.dump_stats(tmp)
stats = pstats.Stats(tmp, stream=out)
#stats.strip_dirs() # Must happen prior to sort_stats
stats.sort_stats('time', 'calls')
stats.print_stats()
stats_str = out.getvalue()
os.unlink(tmp)
stats_str = stats_str.split('\n')
headers = '\n'.join(make_header(stats_str[:4]))
data = data_stream(stats_str[6:],100)
tables = make_stat_table(request, data)
w = Widget(cn = 'profiler')
w.add(Widget('div', headers, cn = 'legend'))
w.add(tabs(tables))
content = w.render(request)
return to_bytes('\n'.join(html_doc_stream(request, content, 200)))
def profile(request, callback, Response):
tmp = tempfile.mktemp()
out = Stream()
prof = profiler.Profile()
response = prof.runcall(callback)
prof.dump_stats(tmp)
stats = pstats.Stats(tmp, stream=out)
#stats.strip_dirs() # Must happen prior to sort_stats
stats.sort_stats('time', 'calls')
stats.print_stats()
stats_str = out.getvalue()
os.unlink(tmp)
stats_str = stats_str.split('\n')
headers = '\n'.join(make_header(stats_str[:4]))
data = data_stream(stats_str[6:], 100)
tables = make_stat_table(request, data)
w = Widget(cn='profiler')
w.add(Widget('div', headers, cn='legend'))
w.add(tabs(tables))
content = w.render(request)
return to_bytes('\n'.join(html_doc_stream(request, content, 200)))
def items(self, request):
crumbs = []
while request:
crumbs.append(request)
request = request.parent
cutoff = self.min_length - 1
if cutoff:
crumbs = crumbs[:-cutoff]
position = len(crumbs)
for request in crumbs:
li = Widget("li", cn="position{0}".format(position))
name = request.view.breadcrumb(request)
if position < len(crumbs):
url = request.url
title = request.title
a = Widget("a", name, title=title, href=url)
li.add(a)
li.add(self.divider)
else:
li.add(name)
position -= 1
yield li
def items(self, request):
crumbs = []
while request:
crumbs.append(request)
request = request.parent
cutoff = self.min_length - 1
if cutoff:
crumbs = crumbs[:-cutoff]
position = len(crumbs)
for request in crumbs:
li = Widget('li', cn='position{0}'.format(position))
name = request.view.breadcrumb(request)
if position < len(crumbs):
url = request.url
title = request.title
a = Widget('a', name, title=title, href=url)
li.add(a)
li.add(self.divider)
else:
li.add(name)
position -= 1
yield li
def handle_error(self, request, response):
'''Render an error into text or Html depending on *content_type*.
This function can be overwritten by user implementation.'''
exc_info = request.exc_info
settings = request.settings
status = 500
if exc_info and exc_info[0] is not None:
status = getattr(exc_info[1], 'status', status)
else:
exc_info = None
# 302 is a special case, we redirect
content_type = request.content_type
if status in REDIRECT_CODES:
location = dict(exc_info[1].headers)['location']
if request.is_xhr:
content = ajax.jredirect(request.environ, location)
else:
content_type = None
response.headers['Location'] = iri_to_uri(location)
content = ''
else:
err_cls = '%s%s' % (classes.error, status)
err_title = '%s %s' % (status, error_title(status))
if content_type == 'text/plain':
content = err_title
if settings.DEBUG:
content += '\n\n' + html_trace(exc_info, plain=True)
else:
inner = Widget('div', cn=(classes.error, err_cls))
if settings.DEBUG:
inner.addClass('debug')
inner.add(Widget('h2', err_title))
inner.add(Widget('a', request.path, href=request.path))
inner.add(html_trace(exc_info))
else:
func_name = 'render_error_%s' % status
if hasattr(self, func_name):
text = getattr(self, func_name)(request, status)
else:
text = error_title
inner.add(text)
if request.is_xhr:
content = ajax.jservererror(request.environ,
inner.render(request))
else:
try:
layout = request.view.root.get_page_layout(err_cls,
classes.error,
'default')
outer = layout()
content = outer.render(request,
context={'content': inner})
except:
logger.error('Could not render %s error on %s layout',
status, layout, exc_info=True)
content = inner.render(request)
if is_renderer(content):
response.status_code = 200
response.content_type = content.content_type()
content = content.render(request)
else:
response.content_type = content_type
response.status_code = status
if status == 500:
logger.critical('Interval server error', exc_info=exc_info)
return content
def handle_error(self, request, response):
'''Render an error into text or Html depending on *content_type*.
This function can be overwritten by user implementation.'''
exc_info = request.exc_info
settings = request.settings
status = 500
if exc_info and exc_info[0] is not None:
status = getattr(exc_info[1], 'status', status)
else:
exc_info = None
# 302 is a special case, we redirect
content_type = request.content_type
if status in REDIRECT_CODES:
location = dict(exc_info[1].headers)['location']
if request.is_xhr:
content = ajax.jredirect(request.environ, location)
else:
content_type = None
response.headers['Location'] = iri_to_uri(location)
content = ''
else:
err_cls = '%s%s' % (classes.error, status)
err_title = '%s %s' % (status, error_title(status))
if content_type == 'text/plain':
content = err_title
if settings.DEBUG:
content += '\n\n' + html_trace(exc_info, plain=True)
else:
inner = Widget('div', cn=(classes.error, err_cls))
if settings.DEBUG:
inner.addClass('debug')
inner.add(Widget('h2', err_title))
inner.add(Widget('a', request.path, href=request.path))
inner.add(html_trace(exc_info))
else:
func_name = 'render_error_%s' % status
if hasattr(self, func_name):
text = getattr(self, func_name)(request, status)
else:
text = error_title
inner.add(text)
if request.is_xhr:
content = ajax.jservererror(request.environ,
inner.render(request))
else:
try:
layout = request.view.root.get_page_layout(
err_cls, classes.error, 'default')
outer = layout()
content = outer.render(request,
context={'content': inner})
except:
logger.error('Could not render %s error on %s layout',
status,
layout,
exc_info=True)
content = inner.render(request)
if is_renderer(content):
response.status_code = 200
response.content_type = content.content_type()
content = content.render(request)
else:
response.content_type = content_type
response.status_code = status
if status == 500:
logger.critical('Interval server error', exc_info=exc_info)
return content
