def where(self, name, value=None):
"""
Selects current nodes based on name and value queries of child nodes.
If any immediate children match the queries, the parent is included in
the results. The :py:func:``where_query`` function can be used to
construct queries that act on the children as a whole instead of one
at a time.
Example:
>>> from insights.parsr.query import where_query as q
>>> from insights.parsr.query import from_dict
>>> r = from_dict(load_config())
>>> r = conf.status.conditions.where(q("status", "False") | q("type", "Progressing"))
>>> r.message
>>> r = conf.status.conditions.where(q("status", "False") | q("type", "Progressing"))
>>> r.message
>>> r.lastTransitionTime.values
['2019-08-04T23:17:08Z', '2019-08-04T23:32:14Z']
"""
if isinstance(name, _EntryQuery):
query = name
elif isinstance(name, Boolean):
query = child_query(name, value)
elif callable(name):
query = SimpleQuery(pred(name))
else:
query = child_query(name, value)
results = []
seen = set()
for c in self.children:
if c not in seen and query.test(c):
results.append(c)
return Result(children=results)
def _desugar_name(q):
if q is None:
return NameQuery(TRUE)
if isinstance(q, NameQuery):
return q
if isinstance(q, Boolean):
return NameQuery(q)
if callable(q):
return NameQuery(pred(q))
return NameQuery(eq(q))
def _desugar_attr(q):
if isinstance(q, Boolean):
return q
if callable(q):
return pred(q)
return eq(q)
def __init__(self, expr):
if not isinstance(expr, Boolean):
expr = pred(expr)
self.expr = expr