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Recursively get the dependency fields of post aggregators #437

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Merged
mistercrunch merged 1 commit into from
May 5, 2016
+14 −4
Merged

Recursively get the dependency fields of post aggregators #437

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18 changes: 14 additions & 4 deletions caravel/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1062,16 +1062,26 @@ def query( # druid
metrics_dict = {m.metric_name: m for m in self.metrics}
all_metrics = []
post_aggs = {}

def recursive_get_fields(_conf):
_fields = _conf.get('fields', [])
field_names = []
for _f in _fields:
_type = _f.get('type')
if _type == 'fieldAccess':
field_names.append(_f.get('fieldName'))
elif _type == 'arithmetic':
field_names += recursive_get_fields(_f)

return list(set(field_names))

for metric_name in metrics:
metric = metrics_dict[metric_name]
if metric.metric_type != 'postagg':
all_metrics.append(metric_name)
else:
conf = metric.json_obj
fields = conf.get('fields', [])
all_metrics += [
f.get('fieldName') for f in fields
if f.get('type') == 'fieldAccess']
all_metrics += recursive_get_fields(conf)
all_metrics += conf.get('fieldNames', [])
if conf.get('type') == 'javascript':
post_aggs[metric_name] = JavascriptPostAggregator(
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