| 1 | def load_app(self, app_name, can_postpone=False):
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| 2 | """
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| 3 | Loads the app with the provided fully qualified name, and returns the
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| 4 | model module.
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| 5 | """
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| 6 | self.handled[app_name] = None
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| 7 | self.nesting_level += 1
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| 8 | try:
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| 9 | mod = __import__(app_name, {}, {}, ['models'])
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| 10 | except Exception,e:
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| 11 | exctype, value, tb = sys.exc_info()
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| 12 | import traceback
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| 13 | last = traceback.extract_tb(tb)[-1]
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| 14 | del tb
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| 15 |
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| 16 | raise ImportError, "Failed to load models for %s, %s in %s line %s" % (app_name,e.message,last[0],last[1])
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| 17 | self.nesting_level -= 1
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| 18 | if not hasattr(mod, 'models'):
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| 19 | if can_postpone:
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| 20 | # Either the app has no models, or the package is still being
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| 21 | # imported by Python and the model module isn't available yet.
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| 22 | # We will check again once all the recursion has finished (in
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| 23 | # populate).
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| 24 | self.postponed.append(app_name)
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| 25 | return None
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| 26 | if mod.models not in self.app_store:
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| 27 | self.app_store[mod.models] = len(self.app_store)
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| 28 | return mod.models
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| 29 |
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