feat: add basic support for rows grid for master, batch views

src/wuttaweb/views/batch.py

@@ -50,6 +50,10 @@ class BatchMasterView(MasterView):
 
     sort_defaults = ('id', 'desc')
 
+    has_rows = True
+    rows_title = "Batch Rows"
+    rows_sort_defaults = 'sequence'
+
     def __init__(self, request, context=None):
         super().__init__(request, context=context)
         self.batch_handler = self.get_batch_handler()
@@ -253,3 +257,33 @@ class BatchMasterView(MasterView):
 
         finally:
             session.close()
+
+    ##############################
+    # row methods
+    ##############################
+
+    @classmethod
+    def get_row_model_class(cls):
+        """ """
+        if hasattr(cls, 'row_model_class'):
+            return cls.row_model_class
+
+        Batch = cls.get_model_class()
+        return Batch.__row_class__
+
+    def get_row_grid_data(self, batch):
+        """
+        Returns the base query for the batch
+        :attr:`~wuttjamaican:wuttjamaican.db.model.batch.BatchMixin.rows`
+        data.
+        """
+        BatchRow = self.get_row_model_class()
+        query = self.Session.query(BatchRow)\
+                            .filter(BatchRow.batch == batch)
+        return query
+
+    def configure_row_grid(self, g):
+        """ """
+        super().configure_row_grid(g)
+
+        g.set_label('sequence', "Seq.", column_only=True)