Merge pull request #633 from FAIRmat-NFDI/add_datetime_as_min_all_start_times

add datetime as minimum of start times from all entries

Author: GinzburgLev

src/pynxtools/nomad/entrypoints.py

@@ -111,9 +111,14 @@ def load(self):
             ),
             Column(
                 title="Start Time",
-                search_quantity=f"data.ENTRY[*].start_time#{schema}",
+                search_quantity=f"data.datetime#{schema}",
                 selected=True,
             ),
+            Column(
+                title="Start Times by Entry",
+                search_quantity=f"data.ENTRY[*].start_time__field#{schema}",
+                selected=False,
+            ),
             Column(
                 title="Description",
                 search_quantity=f"data.ENTRY[*].experiment_description__field#{schema}",
@@ -261,6 +266,11 @@ def load(self):
                 ),
                 MenuItemHistogram(
                     title="Start Time",
+                    x=f"data.datetime#{schema}",
+                    autorange=True,
+                ),
+                MenuItemHistogram(
+                    title="Start Time by Entry",
                     x=f"data.ENTRY.start_time__field#{schema}",
                     autorange=True,
                 ),

src/pynxtools/nomad/schema.py

@@ -238,6 +238,11 @@ def normalize(self, archive, logger):
             self.steps = []
             for entry in app_entry:
                 ref = NexusActivityStep(name=entry.name, reference=entry)
+                if entry.start_time__field is not None:
+                    if (self.datetime is None) or (
+                        self.datetime > entry.start_time__field
+                    ):
+                        self.datetime = entry.start_time__field
                 self.steps.append(ref)
                 mapping = {
                     ActivityStep: (NexusActivityStep, self.steps),