Store active plan's id to a ProjectVariable.

Store plan's id to a ProjectVariable when creating new plan or opening existing plan.

Author: Mtk112

arho_feature_template/core/plan_manager.py

@@ -1,4 +1,4 @@
-from qgis.core import QgsProject, QgsVectorLayer
+from qgis.core import QgsExpressionContextUtils, QgsProject, QgsVectorLayer
 from qgis.PyQt.QtWidgets import QDialog, QMessageBox
 from qgis.utils import iface
 
@@ -64,6 +64,7 @@ def feature_added(self):
             new_feature = self.kaava_layer.getFeature(new_feature_id)
             if new_feature.isValid():
                 feature_id_value = new_feature["id"]
+                QgsExpressionContextUtils.setProjectVariable(QgsProject.instance(), "active_plan_id", feature_id_value)
                 update_selected_plan(LandUsePlan(feature_id_value))
             else:
                 iface.messageBar().pushMessage("Error", "Invalid feature retrieved.", level=3)
@@ -92,6 +93,7 @@ def load_land_use_plan(self):
                 return
 
             plan = LandUsePlan(selected_plan_id)
+            QgsExpressionContextUtils.setProjectVariable(QgsProject.instance(), "active_plan_id", selected_plan_id)
             update_selected_plan(plan)
 
     def clear_all_filters(self):

arho_feature_template/plugin.py

@@ -15,7 +15,7 @@
 from arho_feature_template.qgis_plugin_tools.tools.resources import plugin_name
 
 # from arho_feature_template.utils.misc_utils import get_lambda_address, get_lambda_settings
-from arho_feature_template.utils.misc_utils import get_lambda_settings
+from arho_feature_template.utils.misc_utils import get_active_plan_id, get_lambda_settings
 
 if TYPE_CHECKING:
     from qgis.gui import QgisInterface, QgsMapTool
@@ -197,9 +197,14 @@ def load_existing_land_use_plan(self):
     def validate_plan(self):
         """Validate the plan."""
         lambda_host, lambda_port = get_lambda_settings()
+        active_plan = get_active_plan_id()
 
         # Testing.
-        QMessageBox.information(None, "Lambda Settings", f"Lambda Host: {lambda_host}\nLambda Port: {lambda_port}")
+        QMessageBox.information(
+            None,
+            "Lambda asetukset",
+            f"Lambdan isäntä: {lambda_host}\nLambdan portti: {lambda_port}\nAktiivinen kaava: {active_plan}",
+        )
         # print(f"Hard Coded Lambda Host: {hc_lambda_host}")
         # print(f"Hard Coded Lambda Port: {hc_lambda_port}")
 

arho_feature_template/utils/misc_utils.py

@@ -1,6 +1,6 @@
 import os
 
-from qgis.core import QgsProject, QgsVectorLayer
+from qgis.core import QgsExpressionContextUtils, QgsProject, QgsVectorLayer
 from qgis.PyQt.QtCore import QSettings
 from qgis.PyQt.QtWidgets import QMessageBox
 
@@ -60,6 +60,12 @@ def handle_unsaved_changes() -> bool:
     return True
 
 
+def get_active_plan_id():
+    """Retrieve the active plan ID stored as a project variable."""
+    # return QgsExpressionContextUtils.projectScope(QgsProject.instance(), "active_plan_id")
+    return QgsExpressionContextUtils.projectScope(QgsProject.instance()).variable("active_plan_id")
+
+
 def get_lambda_settings():
     """Retrieve Lambda settings, using defaults if not set."""
     settings = QSettings("ArhoFeatureTemplate")