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Change in PackageMixin, create ANNOTATE_DICT

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This commit is contained in:
Slava Bacherikov 2012-05-05 18:28:41 +03:00
parent 0efba89342
commit b4162313f2
1 changed files with 11 additions and 20 deletions
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27
euscanwww/djeuscan/managers.py
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@ -13,11 +13,14 @@ def gen_n_function(field_name):
return n_method
N_LIST = ['n_packaged','n_overlay','n_versions']
ANNOTATE_DICT = { name: models.Sum(name) for name in N_LIST }
class PackageMixin(object):
n_packaged = gen_n_function('n_packaged')
n_overlay = gen_n_function('n_overlay')
n_versions = gen_n_function('n_versions')
for name in N_LIST:
locals()[name] = gen_n_function(name)
def n_upstream(self):
return self.n_versions() - self.n_packaged() - self.n_overlay()
@ -26,11 +29,7 @@ class PackageMixin(object):
"""
Returns all the available categories
"""
return self.values('category').annotate(
n_packaged=models.Sum('n_packaged'),
n_overlay=models.Sum('n_overlay'),
n_versions=models.Sum('n_versions')
)
return self.values('category').annotate(**ANNOTATE_DICT)
def herds(self, rename=False):
"""
@ -39,11 +38,7 @@ class PackageMixin(object):
# FIXME: optimize the query, it uses 'LEFT OUTER JOIN' instead of
# 'INNER JOIN'
res = self.filter(herds__isnull=False)
res = res.values('herds__herd').annotate(
n_packaged=models.Sum('n_packaged'),
n_overlay=models.Sum('n_overlay'),
n_versions=models.Sum('n_versions')
)
res = res.values('herds__herd').annotate(**ANNOTATE_DICT)
if rename:
res = rename_fields(res, [('herds__herd', 'herd')])
@ -57,11 +52,7 @@ class PackageMixin(object):
res = self.filter(maintainers__isnull=False).values(
'maintainers__id', 'maintainers__name', 'maintainers__email'
)
res = res.annotate(
n_packaged=models.Sum('n_packaged'),
n_overlay=models.Sum('n_overlay'),
n_versions=models.Sum('n_versions')
)
res = res.annotate(**ANNOTATE_DICT)
if rename:
res = rename_fields(