Advanced Param Dependencies Video

how_do_i_videos/advanced_parameter_dependencies/multiple_choice_control.py

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+def get_options_list(field, control_value=None, control_values=[], **kwargs):
+   """
+   A plug-in for building a list of options for 'Plants'
+   based on the values selected for the controlling field 'Plant Type'
+   field: This is the dependent field.
+   control_value: You won't need to use in this case, but is still required in the kwargs in the function definition.
+   control_values: A list of values selected on the form for the controlling field.
+   """
+   options = []
+
+   if 'Trees' in control_values:
+      options.extend([
+         ('red_maple', 'Red Maple'),
+         ('coastal_redwood', 'Coastal Redwood'),
+         ('douglas_fir', 'Douglas Fir'),
+         ])
+
+   if 'Shrubs' in control_values:
+      options.extend([
+         ('red_twig_dogwood', 'Red Twig Dogwood'),
+         ('wild_lilac', 'Wild Lilac'),
+         ('summersweet', 'Summersweet'),
+      ])
+
+   return options

how_do_i_videos/advanced_parameter_dependencies/multiple_control_fields.py

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+def get_options_list(field, control_value=None, control_value_dict=None, **kwargs):
+    if not control_value_dict:
+        return [
+            ("", f"------ Please select a Monitoring Tool and Policy ------")
+        ]
+    monitoring_tool = control_value_dict.get("gpo_monitoring_tool", "")
+    monitoring_policy = control_value_dict.get("gpo_monitoring_policy", "")
+    if not monitoring_tool:
+        return [("", f"------ Please select a Monitoring Tool ------")]
+    if not monitoring_policy:
+        return [("", f"------ Please select a Monitoring Policy ------")]
+    # Add any logic to determine options based on the monitoring tool & policy.
+    # Some trivial exmaple logic follows.
+    options = [
+        ("", f"------ Please select a Severity ------"),
+        ("1", f"Severity 1 for {monitoring_tool} {monitoring_policy}"),
+        ("2", f"Severity 2 for {monitoring_tool} {monitoring_policy}"),
+    ]
+    return options

how_do_i_videos/advanced_parameter_dependencies/single_control.py

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+def get_options_list(field, control_value=None, **kwargs):
+    """
+    A plug-in for regenerating 'Species' options based on the value of the controlling field 'Genus'
+    field: This is the dependent field.
+    control_value: The value entered on the form for the control field. This value determines what will be displayed in "field"
+    """
+    options = []
+
+    if control_value == '1':
+        options = [
+            ("", "----- Select a Value -----"),
+            ("A", "Value A"),
+            ("B", "Value B"),
+            ("C", "Value C")
+        ]
+    elif control_value == '2':
+        options = [
+            ("", "----- Select a Value -----"),
+            ("D", "Value D"),
+            ("E", "Value E"),
+            ("F", "Value F")
+        ]
+    elif control_value == '3':
+        options = [
+            ("", "----- Select a Value -----"),
+            ("G", "Value G"),
+            ("H", "Value H"),
+            ("I", "Value I")
+        ]
+    return options