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720ff740e7
This adds a new method, Apps.lazy_model_operation(), and a helper function, lazy_related_operation(), which together supersede add_lazy_relation() and make lazy model operations the responsibility of the App registry. This system no longer uses the class_prepared signal.
19 lines
692 B
Python
19 lines
692 B
Python
from django.utils import six
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def make_model_tuple(model):
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"""
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Takes a model or a string of the form "app_label.ModelName" and returns a
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corresponding ("app_label", "modelname") tuple. If a tuple is passed in,
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it's assumed to be a valid model tuple already and returned unchanged.
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"""
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if isinstance(model, tuple):
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model_tuple = model
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elif isinstance(model, six.string_types):
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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, "Invalid model representation: %s" % model
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return model_tuple
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