97def registerDcrSubfilters(repo, num_subfilters, band_names):
98 """Construct a set of subfilters for chromatic modeling and add them to a
99 registry.
100
101 Parameters
102 ----------
103 repo : `str`
104 URI to the location to read the repo.
105 num_subfilters : `int`
106 The number of subfilters to add.
107 band_names : `list` [`str`]
108 The filter band names to add.
109
110 Returns
111 -------
112 insertResults : ``InsertResults``
113 A class that contains the results of the subfilters that were inserted
114 or already exist in each filter band, that has a __str__ method so it
115 can be easily printed to the CLI output.
116 """
117 butler = Butler(repo, writeable=True)
118 results = InsertResults()
119 for filterName in band_names:
120 try:
121 with butler.registry.transaction():
122 for sub in range(num_subfilters):
123 butler.registry.insertDimensionData("subfilter", {"band": filterName, "subfilter": sub})
124 results.add(filterName, sub, True)
125 except IntegrityError:
126 records = butler.registry.queryDimensionRecords("subfilter", dataId={"band": filterName})
127 for record in records:
128 results.add(filterName, record.id, False)
129
130 return results
