feat: add auto-link (to "View") behavior for grid columns

src/wuttaweb/grids/base.py

@@ -72,6 +72,13 @@ class Grid:
        List of :class:`GridAction` instances represenging action links
        to be shown for each record in the grid.
 
+    .. attribute:: linked_columns
+
+       List of column names for which auto-link behavior should be
+       applied.
+
+       See also :meth:`set_link()` and :meth:`is_linked()`.
+
     .. attribute:: vue_tagname
 
        String name for Vue component tag.  By default this is
@@ -85,12 +92,14 @@ class Grid:
             columns=None,
             data=None,
             actions=[],
+            linked_columns=[],
             vue_tagname='wutta-grid',
     ):
         self.request = request
         self.key = key
         self.data = data
         self.actions = actions or []
+        self.linked_columns = linked_columns or []
         self.vue_tagname = vue_tagname
 
         self.config = self.request.wutta_config
@@ -122,6 +131,51 @@ class Grid:
         """
         self.columns = FieldList(columns)
 
+    def set_link(self, key, link=True):
+        """
+        Explicitly enable or disable auto-link behavior for a given
+        column.
+
+        If a column has auto-link enabled, then each of its cell
+        contents will automatically be wrapped with a hyperlink.  The
+        URL for this will be the same as for the "View"
+        :class:`GridAction`
+        (aka. :meth:`~wuttaweb.views.master.MasterView.view()`).
+        Although of course each cell gets a different link depending
+        on which data record it points to.
+
+        It is typical to enable auto-link for fields relating to ID,
+        description etc. or some may prefer to auto-link all columns.
+
+        See also :meth:`is_linked()`; the list is tracked via
+        :attr:`linked_columns`.
+
+        :param key: Column key as string.
+
+        :param link: Boolean indicating whether column's cell contents
+           should be auto-linked.
+        """
+        if link:
+            if key not in self.linked_columns:
+                self.linked_columns.append(key)
+        else: # unlink
+            if self.linked_columns and key in self.linked_columns:
+                self.linked_columns.remove(key)
+
+    def is_linked(self, key):
+        """
+        Returns boolean indicating if auto-link behavior is enabled
+        for a given column.
+
+        See also :meth:`set_link()` which describes auto-link behavior.
+
+        :param key: Column key as string.
+        """
+        if self.linked_columns:
+            if key in self.linked_columns:
+                return True
+        return False
+
     def render_vue_tag(self, **kwargs):
         """
         Render the Vue component tag for the grid.

src/wuttaweb/templates/grids/vue_template.mako

@@ -10,7 +10,12 @@
                            label="${column['label']}"
                            v-slot="props"
                            cell-class="c_${column['field']}">
-          <span v-html="props.row.${column['field']}"></span>
+          % if grid.is_linked(column['field']):
+              <a :href="props.row._action_url_view"
+                 v-html="props.row.${column['field']}" />
+          % else:
+              <span v-html="props.row.${column['field']}"></span>
+          % endif
         </${b}-table-column>
     % endfor
 

tests/grids/test_base.py

@@ -49,6 +49,26 @@ class TestGrid(TestCase):
         grid = self.make_grid()
         self.assertEqual(grid.vue_component, 'WuttaGrid')
 
+    def test_linked_columns(self):
+        grid = self.make_grid(columns=['foo', 'bar'])
+        self.assertEqual(grid.linked_columns, [])
+        self.assertFalse(grid.is_linked('foo'))
+
+        grid.set_link('foo')
+        self.assertEqual(grid.linked_columns, ['foo'])
+        self.assertTrue(grid.is_linked('foo'))
+        self.assertFalse(grid.is_linked('bar'))
+
+        grid.set_link('bar')
+        self.assertEqual(grid.linked_columns, ['foo', 'bar'])
+        self.assertTrue(grid.is_linked('foo'))
+        self.assertTrue(grid.is_linked('bar'))
+
+        grid.set_link('foo', False)
+        self.assertEqual(grid.linked_columns, ['bar'])
+        self.assertFalse(grid.is_linked('foo'))
+        self.assertTrue(grid.is_linked('bar'))
+
     def test_render_vue_tag(self):
         grid = self.make_grid(columns=['foo', 'bar'])
         html = grid.render_vue_tag()