View source for Item:OSW659a81662ff44af1b2b6febeee7c3a25

==Controller Extension of Data Classes==
Add functionalities to entities represented by wiki pages
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<div style="break-inside: avoid;"> Python Dataclass 
<syntaxhighlight lang="python3">
class MyClass():
    text: str
    number: float
    array: List[Any]
    
class MySubClass(MyClass):
    additional_property: str
</syntaxhighlight>
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<div style="break-inside: avoid;"> Python Controller Class
<syntaxhighlight lang="python3">
class MyClassController(MyClass):
    def print_text(text):
        print(self.text)

</syntaxhighlight>
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<div style="break-inside: avoid;"> Controller instantiation and execution
<syntaxhighlight lang="python3">
my_instance = MySubClass(
    text="some text",
    # ...
)
# or
my_instance = osw.load_entity("Item:...")

my_instance = my_instance.cast(MyInstanceController)
my_instance.print_text() # "some text"
</syntaxhighlight>
</div>
</div>