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This commit is contained in:
Andy Eschbacher 2018-03-07 17:03:30 -05:00
parent aa9d05f614
commit a9222018c0
1 changed files with 14 additions and 0 deletions
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14
src/py/crankshaft/crankshaft/analysis_data_provider.py
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@ -49,6 +49,20 @@ class AnalysisDataProvider(object):
- `denominator` (str, optional): Used in conjunction with
`numerator`.
"""
if params.get('w_type') == 'queen':
geom_type = plpy.execute('''
SELECT DISTINCT ST_GeometryType("{geom_col}") as g
FROM ({subquery}) as _w
WHERE "{geom_col}" is not null;
'''.format(
geom_col=params.get('geom_col'),
subquery=prams.get('subquery')
))
if geom_type[0]['g'] not in ('ST_Polygon', 'ST_MultiPolygon'):
raise plpy.error(
'Polygon geometries are needed when using `queen` weights '
'with this analysis. {} was found instead.'.format(
geom_type[0]['g']))
query = pu.construct_neighbor_query(w_type, params)
return plpy.execute(query)