Store channel frequency & width as independent values

netbox/wireless/utils.py

@@ -0,0 +1,27 @@
+from decimal import Decimal
+
+from .choices import WirelessChannelChoices
+
+__all__ = (
+    'get_channel_attr',
+)
+
+
+def get_channel_attr(channel, attr):
+    """
+    Return the specified attribute of a given WirelessChannelChoices value.
+    """
+    if channel not in WirelessChannelChoices.values():
+        raise ValueError(f"Invalid channel value: {channel}")
+
+    channel_values = channel.split('-')
+    attrs = {
+        'band': channel_values[0],
+        'id': int(channel_values[1]),
+        'frequency': Decimal(channel_values[2]),
+        'width': Decimal(channel_values[3]),
+    }
+    if attr not in attrs:
+        raise ValueError(f"Invalid channel attribute: {attr}")
+
+    return attrs[attr]