add: custom kpi and export log&cdr file

database/upgrade/upg_function.sql

@@ -0,0 +1,16 @@
+DELIMITER / /
+
+CREATE FUNCTION IF NOT EXISTS omc_get_dict_value(field_value VARCHAR(255), type VARCHAR(255))
+RETURNS VARCHAR(255)
+DETERMINISTIC
+BEGIN
+DECLARE result VARCHAR(255);
+
+SELECT `dict_value` INTO result
+FROM  `sys_dict_data`
+WHERE `dict_label` = field_value AND `dict_type` = type limit 1;
+
+RETURN result;
+END //
+
+DELIMITER;