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fix bug that it throws exception when some field not exists in context. #4

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fix bug that it throws exception when some field not exists in context. #4

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e6758f1
Update base.py
jasonsun2016 Mar 28, 2018
045401d
Update tests.py
jasonsun2016 Mar 28, 2018
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5 changes: 4 additions & 1 deletion microtemplates/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,10 @@ def resolve(name, context):
name = name[2:]
try:
for tok in name.split('.'):
context = context[tok]
if tok in context:
context = context[tok]
else:
return None
return context
except KeyError:
raise TemplateContextError(name)
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6 changes: 5 additions & 1 deletion microtemplates/tests.py
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Expand Up @@ -68,6 +68,10 @@ def test_truthy_thingy(self):
self.assertEquals(rendered, '')
rendered = Template('{% if items %}we have items{% end %}').render(items=[1])
self.assertEquals(rendered, 'we have items')

def test_some_field_does_not_exist(self):
rendered = Template('{% if context.has_flag %}we have items{% else %}we have nothing{% end %}').render(context={"items":[1,2]})
self.assertEquals(rendered, 'we have nothing')


def pow(m=2, e=2):
Expand Down Expand Up @@ -96,4 +100,4 @@ def test_keyword_args(self):


if __name__ == '__main__':
unittest.main()
unittest.main()