77 lines
1.6 KiB
Python
77 lines
1.6 KiB
Python
"""
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djeuscan.helpers
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"""
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from distutils.version import StrictVersion, LooseVersion
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def xint(i):
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"""
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Tries to cast to int, fallbacks to 0
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"""
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try:
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return int(i)
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except Exception:
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return 0
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def select_related_last_versions(queryset):
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queryset = queryset.select_related(
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'last_version_gentoo',
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'last_version_overlay',
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'last_version_upstream'
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)
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def version_key(version):
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version = version.version
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try:
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return StrictVersion(version)
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# in case of abnormal version number, fall back to LooseVersion
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except ValueError:
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return LooseVersion(version)
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def packages_from_names(data):
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"""
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Returns a list of Package objects from a string of names
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"""
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from djeuscan.models import Package
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packages = []
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data = data.replace("\r", "")
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for pkg in data.split('\n'):
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if '/' in pkg:
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cat, pkg = pkg.split('/')
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packages.extend(Package.objects.filter(category=cat, name=pkg))
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else:
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packages.extend(Package.objects.filter(name=pkg))
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return packages
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def rename_fields(vqs, fields):
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ret = []
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for n in vqs:
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for tr in fields:
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if tr[0] in n:
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n[tr[1]] = n[tr[0]]
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del n[tr[0]]
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ret.append(n)
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return ret
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class catch_and_return(object):
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def __init__(self, err, response):
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self.err = err
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self.response = response
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def __call__(self, fn):
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def wrapper(*args, **kwargs):
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try:
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return fn(*args, **kwargs)
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except self.err:
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return self.response
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return wrapper
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