class ISettings(model.Schema):
""" Cache settings
"""
memcache = schema.Bool(title=_(u"Memcache"),
description=_(u"Invalidate Memcache cache."),
required=False,
default=False)
if VARNISH:
varnish = schema.Bool(title=_(u"Varnish"),
description=_(u"Invalidate Varnish cache."),
required=False,
default=False)
relatedItems = schema.Bool(
title=_(u"Related items"),
description=_(u"Also invalidate cache for context's related items."),
required=False,
default=False)
backRefs = schema.Bool(
title=_(u"Back references"),
description=_(u"Also invalidate cache for context's back references."),
required=False,
default=False)
redirectURL = schema.URI(
title=_(u"Redirect URL"),
description=_(u"Redirect URL when request parameter is present."),
required=False)
def invalidate(self, action):
""" Invalidate cache
"""
self.status = u""
msg_invalidated = _(u"Cache invalidated")
portal_url = getToolByName(self.context, 'portal_url')()
redirectURL = self.widgets['redirectURL'].value
data, errors = self.extractData()
if not redirectURL.startswith(portal_url):
redirectURL = ''
if errors:
self.status = self.formErrorsMessage
return
content = self.getContent()
changes = self.applyChanges(content, data)
if redirectURL and changes:
IStatusMessage(self.request).addStatusMessage(msg_invalidated,
type='info')
self.request.response.redirect(redirectURL)
elif changes:
self.status = msg_invalidated
else:
self.status = _(u"Nothing selected to invalidate")
def invalidate(self, action):
""" Invalidate cache
"""
self.status = u""
msg_invalidated = _(u"Cache invalidated")
portal_url = getToolByName(self.context, 'portal_url')()
redirectURL = self.widgets['redirectURL'].value
data, errors = self.extractData()
if not redirectURL.startswith(portal_url):
redirectURL = ''
if errors:
self.status = self.formErrorsMessage
return
content = self.getContent()
changes = self.applyChanges(content, data)
if redirectURL and changes:
IStatusMessage(self.request).addStatusMessage(msg_invalidated,
type='info')
self.request.response.redirect(redirectURL)
elif changes:
self.status = msg_invalidated
else:
self.status = _(u"Nothing selected to invalidate")
def invalidate_cache(self, context, **kwargs):
""" Invalidate Varnish
"""
if not VARNISH:
return _(u"Varnish invalidated.")
try:
if VARNISH.purge.isPurged(context):
event.notify(InvalidateVarnishEvent(context))
except Exception as err:
logger.exception(err)
return _(u"Varnish invalidated.")
def invalidate(self, action):
""" Invalidate cache
"""
self.status = u""
data, errors = self.extractData()
if errors:
self.status = self.formErrorsMessage
return
content = self.getContent()
changes = self.applyChanges(content, data)
if changes:
self.status = _(u"Cache invalidated")
else:
self.status = _(u"Nothing selected to invalidate")
def __call__(self, **kwargs):
if not VARNISH:
return _(u"Varnish invalidated.")
try:
if VARNISH.purge.isPurged(self.context):
event.notify(InvalidateVarnishEvent(self.context))
except Exception, err:
logger.exception(err)
def backRefs(self, **kwargs):
""" Invalidate back references
"""
getBRefs = getattr(self.context, 'getBRefs', lambda: [])
for item in getBRefs():
invalidate_cache = queryMultiAdapter(
(item, self.request), name='varnish.invalidate',
default=lambda: None)
invalidate_cache()
return _(u"Varnish invalidated for back references.")
def backRefs(self, **kwargs):
""" Invalidate back references
"""
getBRefs = getattr(self.context, 'getBRefs', lambda: [])
for item in getBRefs():
uid = queryAdapter(item, IUUID)
if not uid:
continue
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
return _(u"Memcache invalidated for back references.")
def relatedItems(self, **kwargs):
""" Invalidate related Items
"""
getRelatedItems = getattr(self.context, 'getRelatedItems', lambda: [])
for item in getRelatedItems():
invalidate_cache = queryMultiAdapter(
(item, self.request), name='cache.invalidate',
default=lambda: None)
invalidate_cache()
return _(u"Cache invalidated for relatedItems.")
def invalidate_cache(self, context, **kwargs):
""" Invalidate Varnish
"""
if not VARNISH:
return _(u"Varnish invalidated.")
try:
if VARNISH.purge.isPurged(context):
event.notify(InvalidateVarnishEvent(context))
except Exception, err:
logger.exception(err)
def __call__(self, **kwargs):
# Memcache
invalidate_memcache = queryMultiAdapter((self.context, self.request),
name='memcache.invalidate')
invalidate_memcache()
# Varnish
invalidate_varnish = queryMultiAdapter((self.context, self.request),
name='varnish.invalidate')
invalidate_varnish()
return _(u"Varnish and Memcache invalidated.")
def back_refs(self, context, **kwargs):
""" Invalidate back references
"""
getBRefs = getattr(context, 'getBRefs', lambda r: [])
for item in getBRefs('relatesTo'):
try:
invalidate_cache = queryMultiAdapter(
(item, self.request), name='cache.invalidate',
default=lambda parent: None)
invalidate_cache(parent="ignore")
except TypeError as err:
logger.exception(err)
return _(u"Cache invalidated for back references.")
def back_refs(self, context, **kwargs):
""" Invalidate back references
"""
getBRefs = getattr(context, 'getBRefs', lambda r: [])
for item in getBRefs('relatesTo'):
try:
uid = queryAdapter(item, IUUID)
if not uid:
continue
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
except TypeError as err:
logger.exception(err)
return _(u"Memcache invalidated for back references.")
def related_items(self, context, **kwargs):
""" Invalidate related Items
"""
getRelatedItems = getattr(context, 'getRelatedItems', lambda: [])
for item in getRelatedItems():
try:
uid = queryAdapter(item, IUUID)
if not uid:
continue
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
except TypeError as err:
logger.exception(err)
return _(u"Memcache invalidated for relatedItems.")
def related_items(self, context, **kwargs):
""" Invalidate related Items
"""
getRelatedItems = getattr(context, 'getRelatedItems', lambda: [])
for item in getRelatedItems():
try:
invalidate_cache = queryMultiAdapter(
(item, self.request), name='cache.invalidate',
default=lambda parent: None)
invalidate_cache(parent="ignore")
except TypeError as err:
logger.exception(err)
return _(u"Cache invalidated for relatedItems.")
def invalidate_cache(self, context, **kwargs):
""" Invalidate Varnish and Memcache
"""
# Memcache
invalidate_memcache = queryMultiAdapter((context, self.request),
name='memcache.invalidate')
invalidate_memcache(parent="ignore")
# Varnish
invalidate_varnish = queryMultiAdapter((context, self.request),
name='varnish.invalidate')
invalidate_varnish(parent="ignore")
return _(u"Varnish and Memcache invalidated.")
def invalidate_cache(self, context, **kwargs):
""" Invalidate Varnish and Memcache
"""
# Memcache
invalidate_memcache = queryMultiAdapter((context, self.request),
name='memcache.invalidate')
invalidate_memcache(parent="ignore")
# Varnish
invalidate_varnish = queryMultiAdapter((context, self.request),
name='varnish.invalidate')
invalidate_varnish(parent="ignore")
return _(u"Varnish and Memcache invalidated.")
class SettingsForm(AutoExtensibleForm, form.EditForm):
""" Cache settings
"""
schema = ISettings
def updateWidgets(self):
""" Update widgets
"""
super(SettingsForm, self).updateWidgets()
self.widgets['redirectURL'].mode = interfaces.HIDDEN_MODE
def update(self):
""" Update form
"""
super(SettingsForm, self).update()
redirect_url = self.request.get('redirect', '')
if redirect_url:
for name, widget in self.widgets.items():
if name != 'redirectURL':
# Select everything by default
widget.items[0]['checked'] = True
else:
# Add the redirect URL
widget.value = redirect_url
def applyChanges(self, content, data):
""" Apply changes
"""
data['request'] = self.request
changes = {}
for name, field in self.fields.items():
# If the field is not in the data, then go on to the next one
try:
newValue = data[name]
except KeyError:
continue
# If the value is NOT_CHANGED, ignore it, since the widget/converter
# sent a strong message not to do so.
if newValue is interfaces.NOT_CHANGED:
continue
if util.changedField(field.field, newValue, context=content):
# Only update the data, if it is different
dm = queryMultiAdapter((content, field.field),
interfaces.IDataManager)
# Custom behaviour. Send data instead of newValue for more
# flexibility
dm.set(data)
# Record the change using information required later
changes.setdefault(dm.field.interface, []).append(name)
return changes
@button.buttonAndHandler(_('Invalidate'), name='invalidate')
def invalidate(self, action):
""" Invalidate cache
"""
self.status = u""
msg_invalidated = _(u"Cache invalidated")
portal_url = getToolByName(self.context, 'portal_url')()
redirectURL = self.widgets['redirectURL'].value
data, errors = self.extractData()
if not redirectURL.startswith(portal_url):
redirectURL = ''
if errors:
self.status = self.formErrorsMessage
return
content = self.getContent()
changes = self.applyChanges(content, data)
if redirectURL and changes:
IStatusMessage(self.request).addStatusMessage(msg_invalidated,
type='info')
self.request.response.redirect(redirectURL)
elif changes:
self.status = msg_invalidated
else:
self.status = _(u"Nothing selected to invalidate")
def invalidate_cache(self, context, **kwargs):
uid = queryAdapter(context, IUUID)
if not uid:
return _(u"Can't invalidate memcache. Missing uid adapter.")
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
return _(u"Memcache invalidated.")
logger.exception(err)
return _(u"Memcache invalidated for relatedItems.")
def back_refs(self, context, **kwargs):
""" Invalidate back references
"""
getBRefs = getattr(context, 'getBRefs', lambda r: [])
for item in getBRefs('relatesTo'):
try:
uid = queryAdapter(item, IUUID)
if not uid:
continue
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
except TypeError, err:
logger.exception(err)
return _(u"Memcache invalidated for back references.")
def invalidate_cache(self, context, **kwargs):
uid = queryAdapter(context, IUUID)
if not uid:
return _(u"Can't invalidate memcache. Missing uid adapter.")
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
return _(u"Memcache invalidated.")
def __call__(self, **kwargs):
msg = self.invalidate_cache(self.context)
# Invalidate cache for a default view parent
if self.is_default_page and not kwargs.get("parent", None):
msg = self.invalidate_cache(self.parent)
def invalidate_cache(self, context, **kwargs):
uid = queryAdapter(context, IUUID)
if not uid:
return _(u"Can't invalidate memcache. Missing uid adapter.")
event.notify(InvalidateMemCacheEvent(raw=True, dependencies=[uid]))
return _(u"Memcache invalidated.")
