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DM-55527: Guard against missing deblend_nChild columns in source catalogs #58

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Merged
isullivan merged 1 commit into from
Jul 17, 2026
Merged

DM-55527: Guard against missing deblend_nChild columns in source catalogs #58

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10 changes: 8 additions & 2 deletions python/lsst/display/firefly/footprints.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,11 @@ def recordSelector(record, selection):
meaning zero parents and zero children.
Values to check for sel
"""
nChildren = record.get('deblend_nChild')
# Catalogs missing the 'deblend_nChild' column were not deblended
if 'deblend_nChild' in record.schema.getNames():
nChildren = record.get('deblend_nChild')
else:
nChildren = 0
parentId = record.getParent()
if selection == 'all':
return True
Expand Down Expand Up @@ -93,6 +97,8 @@ def createFootprintsTable(catalog, xy0=None, insertColumn=4):
inputColumnNames = sourceTable.colnames

x0, y0 = xy0
# The 'deblend_nChild' column is only present if the catalog was deblended
isDeblended = 'deblend_nChild' in catalog.schema.getNames()
spanList = []
peakList = []
familyList = []
Expand Down Expand Up @@ -122,7 +128,7 @@ def createFootprintsTable(catalog, xy0=None, insertColumn=4):
dtype=np.bool))
fpbbox = footprint.getBBox()
parentId = record.getParent()
nChild = record.get('deblend_nChild')
nChild = record.get('deblend_nChild') if isDeblended else 0
if parentId == 0:
familyList.append(recordId)
if nChild > 0:
Expand Down
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