[FIX] Select Rows: fix fail when time variable in metas

Orange/widgets/data/owselectrows.py

@@ -554,7 +554,7 @@ def datetime_changed():
                     invalidate_datetime()
 
                 datetime_format = (var.have_date, var.have_time)
-                column = self.data[:, var_idx]
+                column = self.data.get_column_view(var_idx)[0]
                 w = DateTimeWidget(self, column, datetime_format)
                 w.set_datetime(lc[0])
                 box.controls = [w]
@@ -951,11 +951,10 @@ def convert_timestamp(timestamp):
             return datetime(1970, 1, 1, tzinfo=timezone.utc) + \
                        timedelta(seconds=int(timestamp))
 
-        item_list = [item for items in list(column) for item in items]
         min_datetime = convert_timestamp(
-            np.nanmin(item_list)).strftime(convert_format)
+            np.nanmin(column)).strftime(convert_format)
         max_datetime = convert_timestamp(
-            np.nanmax(item_list)).strftime(convert_format)
+            np.nanmax(column)).strftime(convert_format)
         return min_datetime, max_datetime
 
 

Orange/widgets/data/tests/test_owselectrows.py

@@ -10,7 +10,7 @@
 
 from Orange.data import (
     Table, Variable, ContinuousVariable, StringVariable, DiscreteVariable,
-    Domain)
+    Domain, TimeVariable)
 from Orange.preprocess import discretize
 from Orange.widgets.data import owselectrows
 from Orange.widgets.data.owselectrows import (
@@ -59,6 +59,18 @@
     FilterDiscreteType.IsDefined: [],
 }
 
+TFValues = {
+    FilterContinuous.Equal: [QDate(2013, 5, 5)],
+    FilterContinuous.NotEqual: [QDate(2013, 5, 5)],
+    FilterContinuous.Less: [QDate(2013, 5, 5)],
+    FilterContinuous.LessEqual: [QDate(2013, 5, 5)],
+    FilterContinuous.Greater: [QDate(2013, 5, 5)],
+    FilterContinuous.GreaterEqual: [QDate(2013, 5, 5)],
+    FilterContinuous.Between: [QDate(2013, 5, 5), QDate(2015, 5, 5)],
+    FilterContinuous.Outside: [QDate(2013, 5, 5), QDate(2015, 5, 5)],
+    FilterContinuous.IsDefined: [],
+}
+
 
 class TestOWSelectRows(WidgetTest):
     def setUp(self):
@@ -75,6 +87,17 @@ def test_filter_cont(self):
             self.widget.conditions_changed()
             self.widget.unconditional_commit()
 
+        # continuous var in metas
+        iris = Table.from_table(
+            Domain([], metas=[iris.domain.attributes[0]]), iris
+        )
+        self.widget.set_data(iris)
+        for i, (op, _) in enumerate(OWSelectRows.Operators[ContinuousVariable]):
+            self.widget.remove_all()
+            self.widget.add_row(iris.domain.metas[0], i, CFValues[op])
+            self.widget.conditions_changed()
+            self.widget.unconditional_commit()
+
     def test_filter_str(self):
         zoo = Table("zoo")[::5]
         self.widget.auto_commit = False
@@ -96,6 +119,39 @@ def test_filter_disc(self):
             self.widget.conditions_changed()
             self.widget.unconditional_commit()
 
+        # discrete var in metas
+        lenses = Table.from_table(
+            Domain([], metas=[lenses.domain.attributes[0]]), lenses
+        )
+        self.widget.set_data(lenses)
+        for i, (op, _) in enumerate(OWSelectRows.Operators[DiscreteVariable]):
+            self.widget.remove_all()
+            self.widget.add_row(lenses.domain.metas[0], i, DFValues[op])
+            self.widget.conditions_changed()
+            self.widget.unconditional_commit()
+
+    def test_filter_time(self):
+        data = Table(test_filename("datasets/cyber-security-breaches.tab"))
+        self.widget.auto_commit = False
+        self.widget.set_data(data)
+
+        for i, (op, _) in enumerate(OWSelectRows.Operators[TimeVariable]):
+            self.widget.remove_all()
+            self.widget.add_row(data.domain["breach_start"], i, TFValues[op])
+            self.widget.conditions_changed()
+            self.widget.unconditional_commit()
+
+        # time var in metas
+        data = Table.from_table(
+            Domain([], metas=[data.domain["breach_start"]]), data
+        )
+        self.widget.set_data(data)
+        for i, (op, _) in enumerate(OWSelectRows.Operators[TimeVariable]):
+            self.widget.remove_all()
+            self.widget.add_row(data.domain.metas[0], i, TFValues[op])
+            self.widget.conditions_changed()
+            self.widget.unconditional_commit()
+
     @override_locale(QLocale.C)  # Locale with decimal point
     def test_continuous_filter_with_c_locale(self):
         iris = Table("iris")[:5]