def filter_by_attributes(cls, refs, hints):
"""Filter a list of references by filter values."""
def _attr_match(ref_attr, val_attr):
"""Matche attributes allowing for booleans as strings.
We test explicitly for a value that defines it as 'False',
which also means that the existence of the attribute with
no value implies 'True'
"""
if type(ref_attr) is bool:
return ref_attr == utils.attr_as_boolean(val_attr)
else:
return ref_attr == val_attr
def _inexact_attr_match(inexact_filter, ref):
"""Apply an inexact filter to a result dict.
:param inexact_filter: the filter in question
:param ref: the dict to check
:returns: True if there is a match
"""
comparator = inexact_filter['comparator']
key = inexact_filter['name']
if key in ref:
filter_value = inexact_filter['value']
target_value = ref[key]
if not inexact_filter['case_sensitive']:
# We only support inexact filters on strings so
# it's OK to use lower()
filter_value = filter_value.lower()
target_value = target_value.lower()
if comparator == 'contains':
return (filter_value in target_value)
elif comparator == 'startswith':
return target_value.startswith(filter_value)
elif comparator == 'endswith':
return target_value.endswith(filter_value)
else:
# We silently ignore unsupported filters
return True
return False
for f in hints.filters:
if f['comparator'] == 'equals':
attr = f['name']
value = f['value']
refs = [r for r in refs if _attr_match(
utils.flatten_dict(r).get(attr), value)]
else:
# It might be an inexact filter
refs = [r for r in refs if _inexact_attr_match(f, r)]
return refs
def filter_by_attributes(cls, refs, hints):
"""Filter a list of references by filter values."""
def _attr_match(ref_attr, val_attr):
"""Matche attributes allowing for booleans as strings.
We test explicitly for a value that defines it as 'False',
which also means that the existence of the attribute with
no value implies 'True'
"""
if type(ref_attr) is bool:
return ref_attr == utils.attr_as_boolean(val_attr)
else:
return ref_attr == val_attr
def _inexact_attr_match(inexact_filter, ref):
"""Apply an inexact filter to a result dict.
:param inexact_filter: the filter in question
:param ref: the dict to check
:returns: True if there is a match
"""
comparator = inexact_filter['comparator']
key = inexact_filter['name']
if key in ref:
filter_value = inexact_filter['value']
target_value = ref[key]
if not inexact_filter['case_sensitive']:
# We only support inexact filters on strings so
# it's OK to use lower()
filter_value = filter_value.lower()
target_value = target_value.lower()
if comparator == 'contains':
return (filter_value in target_value)
elif comparator == 'startswith':
return target_value.startswith(filter_value)
elif comparator == 'endswith':
return target_value.endswith(filter_value)
else:
# We silently ignore unsupported filters
return True
return False
for f in hints.filters:
if f['comparator'] == 'equals':
attr = f['name']
value = f['value']
refs = [r for r in refs if _attr_match(
utils.flatten_dict(r).get(attr), value)]
else:
# It might be an inexact filter
refs = [r for r in refs if _inexact_attr_match(f, r)]
return refs