def isShowable(self, obj, layoutType, elem='page'):
'''Is this page showable for p_obj on p_layoutType ("view" or "edit")?
If p_elem is not "page", this method returns the fact that a
sub-element is viewable or not (buttons "save", "cancel", etc).'''
# Define what attribute to test for "showability".
attr = (elem == 'page') and 'show' or ('show%s' % elem.capitalize())
# Get the value of the "show" attribute as identified above
res = getattr(self, attr)
if callable(res):
res = gutils.callMethod(obj.appy(), res)
if isinstance(res, str): return res == layoutType
return res
def callMethod(self, obj, method, cache=True):
'''This method is used to call a p_method on p_obj. p_method is part of
this type definition (ie a default method, the method of a Computed
field, a method used for showing or not a field...). Normally, those
methods are called without any arg. But one may need, within the
method, to access the related field. This method tries to call
p_method with no arg *or* with the field arg.'''
obj = obj.appy()
try:
return gutils.callMethod(obj, method, cache=cache)
except TypeError, te:
# Try a version of the method that would accept self as an
# additional parameter. In this case, we do not try to cache the
# value (we do not call gutils.callMethod), because the value may
# be different depending on the parameter.
tb = sutils.Traceback.get()
try:
return method(obj, self)
except (Exception, e):
obj.log(tb, type='error')
# Raise the initial error.
raise te
def callMethod(self, obj, method, cache=True):
'''This method is used to call a p_method on p_obj. p_method is part of
this type definition (ie a default method, the method of a Computed
field, a method used for showing or not a field...). Normally, those
methods are called without any arg. But one may need, within the
method, to access the related field. This method tries to call
p_method with no arg *or* with the field arg.'''
obj = obj.appy()
try:
return gutils.callMethod(obj, method, cache=cache)
except TypeError, te:
# Try a version of the method that would accept self as an
# additional parameter. In this case, we do not try to cache the
# value (we do not call gutils.callMethod), because the value may
# be different depending on the parameter.
tb = sutils.Traceback.get()
try:
return method(obj, self)
except Exception, e:
obj.log(tb, type='error')
# Raise the initial error.
raise te
def isShowable(self, klass, tool):
'''Is this Search instance (defined in p_klass) showable?'''
if self.show.__class__.__name__ == 'staticmethod':
return gutils.callMethod(tool, self.show, klass=klass)
return self.show
