DM-47976: Support conversion field in file template format strings

lsst · Dec 6, 2024 · d6a4e7c · d6a4e7c
1 parent d632886
commit d6a4e7c
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diff --git a/doc/changes/DM-47976.bugfix.md b/doc/changes/DM-47976.bugfix.md
@@ -0,0 +1 @@
+Support type conversion field in file template format strings.
diff --git a/python/lsst/daf/butler/datastore/file_templates.py b/python/lsst/daf/butler/datastore/file_templates.py
@@ -571,7 +571,7 @@ def format(self, ref: DatasetRef) -> str:
         parts = fmt.parse(self.template)
         output = ""
 
-        for literal, field_name, format_spec, _ in parts:
+        for literal, field_name, format_spec, conversion in parts:
             if field_name and "|" in field_name:
                 alternates = field_name.split("|")
                 for alt in alternates:
@@ -678,6 +678,10 @@ def format(self, ref: DatasetRef) -> str:
                 if replace_slash:
                     value = value.replace("/", "_")
 
+            # Apply conversion (e.g., integer to string)
+            if conversion:
+                value = fmt.convert_field(value, conversion)
+
             # Now use standard formatting
             output = output + literal + format(value, format_spec)
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Support type conversion field in file template format strings.