def __call__(self, component, module, **data):
"""Determine module-level component.
Look for components in module.
iface determines the kind of module-level component to look for
(it will implement iface).
If there is no module-level component, raise an error.
If there is one module-level component, it is returned.
If there are more than one module-level component, raise
an error.
"""
components = list(scan_for_classes(module, self.iface))
if len(components) == 0:
raise UnknownError(
"No module-level %s for %r, please use the '%s' "
"directive." %
(self.component_name, component, self.directive_name),
component)
elif len(components) == 1:
return components[0]
else:
raise UnknownError(
"Multiple possible %ss for %r, please use the '%s' "
"directive." %
(self.component_name, component, self.directive_name),
component)
def __call__(self, component, module, **data):
"""Determine module-level component.
Look for components in module.
iface determines the kind of module-level component to look for
(it will implement iface).
If there is no module-level component, raise an error.
If there is one module-level component, it is returned.
If there are more than one module-level component, raise
an error.
"""
components = list(scan_for_classes(module, self.iface))
if len(components) == 0:
raise UnknownError(
"No module-level %s for %r, please use the '%s' "
"directive."
% (self.component_name, component, self.directive_name),
component)
elif len(components) == 1:
return components[0]
else:
raise UnknownError(
"Multiple possible %ss for %r, please use the '%s' "
"directive."
% (self.component_name, component, self.directive_name),
component)
def determine_module_component(module_info, directive, iface):
"""Determine module-level component.
The module-level component can be set explicitly using the
annotation (such as grok.context).
If there is no annotation, the module-level component is determined
by scanning for classes that implement an interface.
If there is no module-level component, the module-level component is
None.
If there is one module-level component, it is returned.
If there are more than one module-level component, AMBIGUOUS_COMPONENT
is returned.
"""
module = module_info.getModule()
components = list(scan_for_classes(module, iface))
if len(components) == 0:
component = None
elif len(components) == 1:
component = components[0]
else:
component= AMBIGUOUS_COMPONENT
module_component = directive.bind().get(module=module)
if module_component is not None:
component = module_component
return component
def get_default(cls, component, module=None, **data):
components = list(scan_for_classes(module, IContext))
if len(components) == 0:
raise GrokError(
"No module-level context for %r, please use the 'context' "
"directive." % (component), component)
elif len(components) == 1:
component = components[0]
else:
raise GrokError(
"Multiple possible contexts for %r, please use the 'context' "
"directive." % (component), component)
return component
def get_default(cls, component, module=None, **data):
components = list(scan_for_classes(module, IViewletManager))
if len(components) == 0:
raise GrokError(
"No module-level viewletmanager for %r, please use the "
"'viewletmanager' directive." % (component), component)
elif len(components) == 1:
component = components[0]
else:
raise GrokError(
"Multiple possible viewletmanagers for %r, please use the "
"'viewletmanager' directive." % (component), component)
return component
def get_default(cls, component, module=None, **data):
components = list(scan_for_classes(module, IMenu))
if len(components) == 0:
raise GrokError(
"No module-level menu for %r, please use the "
"'menu' directive." % (component), component)
elif len(components) == 1:
component = components[0]
else:
raise GrokError(
"Multiple possible menus for %r, please use the "
"'menu' directive." % (component), component)
return component
def get_default(cls, component, module=None, **data):
components = list(scan_for_classes(module, IContext))
if len(components) == 0:
raise GrokError(
"No module-level model for %r, please use the 'scaffold' " "directive." % (component), component
)
elif len(components) == 1:
component = components[0]
else:
raise GrokError(
"Multiple possible models for %r, please use the 'scaffold' " "directive." % (component), component
)
return dict.fromkeys(SCAFFOLD_ACTIONS, component)
def get_default(cls, component, module=None, **data):
components = list(scan_for_classes(module, IContext))
if len(components) == 0:
raise GrokError(
"No module-level context for %r, please use the 'context' "
"directive." % (component), component)
elif len(components) == 1:
component = components[0]
else:
raise GrokError(
"Multiple possible contexts for %r, please use the 'context' "
"directive."
% (component), component)
return component
def get_default(cls, component, module=None, **data):
components = list(scan_for_classes(module, IViewletManager))
if len(components) == 0:
raise GrokError(
"No module-level viewletmanager for %r, please use the "
"'viewletmanager' directive." % (component), component)
elif len(components) == 1:
component = components[0]
else:
raise GrokError(
"Multiple possible viewletmanagers for %r, please use the "
"'viewletmanager' directive."
% (component), component)
return component