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22 lines
852 B
Python
22 lines
852 B
Python
def make_model_tuple(model):
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"""
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Take a model or a string of the form "app_label.ModelName" and return a
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corresponding ("app_label", "modelname") tuple. If a tuple is passed in,
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assume it's a valid model tuple already and return it unchanged.
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"""
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try:
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if isinstance(model, tuple):
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model_tuple = model
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elif isinstance(model, str):
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app_label, model_name = model.split(".")
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model_tuple = app_label, model_name.lower()
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else:
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model_tuple = model._meta.app_label, model._meta.model_name
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assert len(model_tuple) == 2
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return model_tuple
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except (ValueError, AssertionError):
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raise ValueError(
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"Invalid model reference '%s'. String model references "
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"must be of the form 'app_label.ModelName'." % model
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)
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