Djangoes:
RoR has a fixture system called Factory Girl, which I suspect
constructs objects in native Ruby, not in JSON/YAML.
If nobody ports it to Django I would; under the name "Factory
Squirrel". This post is about the first method I'd add to such a
module.
Another kewt RoR fixture feature is the accessor. Given a table Order
and orders.yml, you can write order(:able) to fetch that Order record
from the sample database.
I miss that feature, so I wrote one better in Django:
class FactorySquirrel:
def __getattr__(self, attr):
sought = re.search(r'^(.*)_([^_]+$)', attr)
if sought:
record_name, model_name = sought.groups()
model = None
try:
model = eval(model_name.capitalize())
except NameError: pass
if model:
record = model.objects.get(name=attr)
setattr(self, attr, record) # So we needn't do it
again.
return record
raise AttributeError("%r object has no attribute %r" %
(type(self).__name__, attr))
Here's how it works. Suppose you have tables Order and User, and they
have 'name' fields with 'kozmik' and 'bullfrog', respectively.
In your test, to fetch a record, you just name it:
def test_kozmik_bullfrog(self):
print self.kozmik_order # reads the fixture database here
print self.bullfrog_user
print self.kozmik_order # does not re-read the record
>From here, to be more useful, we need to think of details like records
without names (shameful!). Models with CamelCase already work -
kozmik_LineItem.
Any ideas how to improve this towards a true Squirrel?
--
Phlip
http://zeekland.zeroplayer.com/
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