feat: Add Heatmap chart migration logic

superset/cli/viz_migrations.py

@@ -28,6 +28,7 @@ class VizType(str, Enum):
     BUBBLE = "bubble"
     DUAL_LINE = "dual_line"
     LINE = "line"
+    HEATMAP = "heatmap"
     PIVOT_TABLE = "pivot_table"
     SUNBURST = "sunburst"
     TREEMAP = "treemap"
@@ -80,6 +81,7 @@ def migrate(viz_type: VizType, is_downgrade: bool = False) -> None:
         MigrateBubbleChart,
         MigrateDualLine,
         MigrateLineChart,
+        MigrateHeatmapChart,
         MigratePivotTable,
         MigrateSunburst,
         MigrateTreeMap,
@@ -90,6 +92,7 @@ def migrate(viz_type: VizType, is_downgrade: bool = False) -> None:
         VizType.BUBBLE: MigrateBubbleChart,
         VizType.DUAL_LINE: MigrateDualLine,
         VizType.LINE: MigrateLineChart,
+        VizType.HEATMAP: MigrateHeatmapChart,
         VizType.PIVOT_TABLE: MigratePivotTable,
         VizType.SUNBURST: MigrateSunburst,
         VizType.TREEMAP: MigrateTreeMap,

superset/migrations/shared/migrate_viz/processors.py

@@ -213,3 +213,18 @@ def _pre_action(self) -> None:
 
         # Truncate y-axis by default to preserve layout
         self.data["y_axis_showminmax"] = True
+
+
+class MigrateHeatmapChart(MigrateViz):
+    source_viz_type = "heatmap"
+    target_viz_type = "heatmap_v2"
+    rename_keys = {
+        "all_columns_x": "x_axis",
+        "all_columns_y": "groupby",
+        "y_axis_bounds": "value_bounds",
+        "show_perc": "show_percentage",
+    }
+    remove_keys = {"sort_by_metric", "canvas_image_rendering"}
+
+    def _pre_action(self) -> None:
+        self.data["legend_type"] = "continuous"

tests/unit_tests/migrations/viz/heatmap_v1_v2_test.py

@@ -0,0 +1,78 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+from typing import Any
+
+from superset.migrations.shared.migrate_viz import MigrateHeatmapChart
+from tests.unit_tests.migrations.viz.utils import migrate_and_assert
+
+SOURCE_FORM_DATA: dict[str, Any] = {
+    "any_other_key": "untouched",
+    "all_columns_x": ["category"],
+    "all_columns_y": ["product"],
+    "metric": ["sales"],
+    "adhoc_filters": [],
+    "row_limit": 100,
+    "sort_by_metric": True,
+    "linear_color_scheme": "blue",
+    "xscale_interval": 2,
+    "yscale_interval": 2,
+    "canvas_image_rendering": "auto",
+    "normalize_across": "x",
+    "left_margin": 50,
+    "bottom_margin": 50,
+    "y_axis_bounds": [0, 100],
+    "y_axis_format": "SMART_NUMBER",
+    "currency_format": "USD",
+    "sort_x_axis": "alpha_asc",
+    "sort_y_axis": "alpha_asc",
+    "show_legend": True,
+    "show_perc": True,
+    "show_values": True,
+    "normalized": True,
+    "viz_type": "heatmap",
+}
+
+TARGET_FORM_DATA: dict[str, Any] = {
+    "any_other_key": "untouched",
+    "x_axis": ["category"],
+    "groupby": ["product"],
+    "metric": ["sales"],
+    "adhoc_filters": [],
+    "row_limit": 100,
+    "legend_type": "continuous",
+    "linear_color_scheme": "blue",
+    "xscale_interval": 2,
+    "yscale_interval": 2,
+    "normalize_across": "x",
+    "left_margin": 50,
+    "bottom_margin": 50,
+    "value_bounds": [0, 100],
+    "y_axis_format": "SMART_NUMBER",
+    "currency_format": "USD",
+    "sort_x_axis": "alpha_asc",
+    "sort_y_axis": "alpha_asc",
+    "show_legend": True,
+    "show_percentage": True,
+    "show_values": True,
+    "normalized": True,
+    "viz_type": "heatmap_v2",
+    "form_data_bak": SOURCE_FORM_DATA,
+}
+
+
+def test_migration() -> None:
+    migrate_and_assert(MigrateHeatmapChart, SOURCE_FORM_DATA, TARGET_FORM_DATA)