Revert "djeuscan: helpers.py is actually unused"

This reverts commit be9d28c255.

euscanwww/djeuscan/helpers.py

@@ -0,0 +1,108 @@
+"""
+djeuscan.helpers
+"""
+
+from distutils.version import StrictVersion, LooseVersion
+
+
+def xint(i):
+    """
+    Tries to cast to int, fallbacks to 0
+    """
+    try:
+        return int(i)
+    except Exception:
+        return 0
+
+
+def select_related_last_versions(queryset):
+    queryset = queryset.select_related(
+        'last_version_gentoo',
+        'last_version_overlay',
+        'last_version_upstream'
+    )
+
+
+def version_key(version):
+    version = version.version
+    try:
+        return StrictVersion(version)
+    # in case of abnormal version number, fall back to LooseVersion
+    except ValueError:
+        return LooseVersion(version)
+
+
+def packages_from_names(data):
+    """
+    Returns a list of Package objects from a string of names
+    """
+
+    from djeuscan.models import Package
+
+    packages = []
+    data = data.replace("\r", "")
+
+    for pkg in data.split('\n'):
+        if '/' in pkg:
+            cat, pkg = pkg.split('/')
+            packages.extend(Package.objects.filter(category=cat, name=pkg))
+        else:
+            packages.extend(Package.objects.filter(name=pkg))
+    return packages
+
+
+def rename_fields(vqs, fields):
+    ret = []
+    for n in vqs:
+        for tr in fields:
+            if tr[0] in n:
+                n[tr[1]] = n[tr[0]]
+                del n[tr[0]]
+        ret.append(n)
+    return ret
+
+
+class catch_and_return(object):
+    def __init__(self, err, response):
+        self.err = err
+        self.response = response
+
+    def __call__(self, fn):
+        def wrapper(*args, **kwargs):
+            try:
+                return fn(*args, **kwargs)
+            except self.err:
+                return self.response
+        return wrapper
+
+
+def get_account_categories(user):
+    from djeuscan.models import Package, CategoryAssociation
+
+    # TODO: This is quite ugly
+    category_names = [obj.category for obj in
+                      CategoryAssociation.objects.filter(user=user)]
+    return [c for c in Package.objects.categories()
+            if c["category"] in category_names]
+
+
+def get_account_herds(user):
+    from djeuscan.models import Package, HerdAssociation
+
+    ids = [obj.herd.pk for obj in
+           HerdAssociation.objects.filter(user=user)]
+    return Package.objects.herds(ids=ids)
+
+
+def get_account_maintainers(user):
+    from djeuscan.models import Package, MaintainerAssociation
+
+    ids = [obj.maintainer.pk for obj in
+           MaintainerAssociation.objects.filter(user=user)]
+    return Package.objects.maintainers(ids=ids)
+
+
+def get_account_packages(user):
+    from djeuscan.models import PackageAssociation
+    return [obj.package for obj in
+            PackageAssociation.objects.filter(user=user)]