Thanks for the detailed explanation. Op dinsdag 20 oktober 2015 03:11:53 UTC+2 schreef Anthony: > > If you have the function name, you can do: > > if function_name in globals(): > > And if you have the actual function object, you can do: > > if function.__name__ in globals(): > > Note, those will yield hits even if there is an object of that name > defined in a model file. If that is a concern, you can diff the globals > before and after executing the controller to get a list of objects > specifically defined in the controller. To do that, at the top of the > controller file (or anywhere before the first component you want to > register): > > pre_controller_objects = dir() > > Then at the bottom of the controller (or after the last component): > > controller_objects = set(dir()) - set(pre_controller_objects) > > Then, wherever you want to test for the existence of a function: > > if function_name in controller_objects: > > Note, that will identify any objects defined in the controller, even if > they are not functions. If that's a concern, you can further filter > controller_objects to include only function objects. > > Finally, if you only want to identify specific actions that your have > defined as components, you could use a special prefix/postfix to identify > them, or just manually maintain a list of their names. One other option > would be to create a decorator that registers a component name in a special > object. In a module or model file, or at the top of the controller: > > class Component(object): > def __init__(self): > self.names = [] > > def __call__(self, f): > self.names.append(f.__name__) > return f > > component = Component() > > Then you would decorate components: > > @component > def component1(): > return dict() > > @component > def component2(): > return dict() > > Finally, wherever needed, check for a component as follows: > > if 'component1' in component.names: > > Anthony > > On Monday, October 19, 2015 at 4:19:30 PM UTC-4, A3 wrote: >> >> >> I want to be able to test if a certain function exists in a controller. >> (I am loading a component with help of another) >> >> controller: >> default.py >> def myfunction() >> return >> >> def mytest() >> if exists(myfunction()): >> do this. >> >
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