Implements alert filters for local network alerts

Implements #5577

scripts/lua/modules/alert_store/network_alert_store.lua

@@ -58,9 +58,34 @@ end
 
 -- ##############################################
 
+--@brief Add filters on the local network name
+--@param network_name The local network name
+--@return True if set is successful, false otherwise
+function network_alert_store:add_network_name_filter(network_name)
+   if not self._entity_value and not self._network_name and not isEmptyString(network_name) then
+      -- This is to filter engaged alerts
+      self._entity_value = network_name
+
+      -- This is to filter historical alerts
+      self._network_name = network_name
+      self._where[#self._where + 1] = string.format("name = '%s'", self._escape(network_name))
+      return true
+   end
+
+   return false
+end
+
+-- ##############################################
+
 --@brief Add filters according to what is specified inside the REST API
 function network_alert_store:_add_additional_request_filters()
    -- Add filters specific to the system family
+   local network_name = _GET["network_name"]
+
+   if not isEmptyString(network_name) then
+      network_name = self:strip_filter_operator(network_name)
+      self:add_network_name_filter(network_name)
+   end
 end
 
 -- ##############################################