ErrorsController.js
//TODO UNCOMMENT AFTER UPDATE TO MONGO 4.x.x
// const updateErrorPropertiesOnConfigurationChange = function() {


//     //Get Ignored/Priority message arrays
//     const ignoredMessages = getIgnoredMessages(true);
//     const priorityMessages = getPriorityMessages(true);

//     //Queries
//     const ignoredQuery = getUpdateQuery(true, ignoredMessages);
//     const nonIgnoredQuery = getUpdateQuery(false, ignoredMessages);
//     const priorityQuery = getUpdateQuery(true, priorityMessages);
//     const nonPriorityQuery = getUpdateQuery(false, priorityMessages);

//     //Logging messages
//     //Define a session variable for later use
//     let session = null;
//     //Adding these options to a query will ensure that the query you are executing is for the given session
//     let options = null;

//     //Start a session
//     ErrorSchema.db.startSession()
//     .then(_session => {
//         //Set session and options to the outer scope variables so that we can use them while chaining promises
//         session = _session;
//         options = { session, new: true };
//         //Start transaction
//         session.startTransaction();
//         //Check for ignoredMessages
//         if(ignoredMessages && ignoredMessages.length > 0) {

//             //Update the messages which are ignored to isIgnored true
//             const ignoredErrors = ErrorSchema.updateMany(
//                 ignoredQuery,
//                 { $set: { isIgnored: true } },
//                 options
//             );

//             //Update the messages which are not ignored to isIgnored false
//             const nonIngoredErrors = ErrorSchema.updateMany(
//                 nonIgnoredQuery,
//                 { $set: { isIgnored: false } },
//                 options
//             );

//             return Promise.all([ignoredErrors, nonIngoredErrors])
//         }

//         else return [];

//     })
//     .then(values => {
//         if(values.length > 0) {

//             //Check if any of the fields that match the criteria are falsely updated/not updated
//             //Should equal 0, that means that there are no problematic fields

//             //Ignored
//             const checkIgnoredQuery = {...ignoredQuery};
//             checkIgnoredQuery.isIgnored = false;

//             //NonIgnored
//             const checkNonIgnoredQuery = {...nonIgnoredQuery};
//             checkNonIgnoredQuery.isIgnored = true;

//             //Get results for session
//             const checkIgnored = ErrorSchema.count(ignoredQuery).session(session);
//             const checkNonIgnored = ErrorSchema.count(nonIgnoredQuery).session(session);

//             return Promise.all([checkIgnored, checkNonIgnored]);
//         }

//         //Send everything is okay
//         else return [0, 0];
//     })
//     .then(values => {
//         if(values.length > 0 && values[0] === 0 && values[1] === 0) {
//             return;
//         }
//         else throw new Error('Ignored Errors update is faulty.');
//     })
//     .then(() => {
//         session.commitTrasnaction();
//         //can perform extra checks
//         // session.end()??? in the docs says not needed. Maybe mongoose does that on its own.
//     })
//     .catch(err => {
//         res.status(500).json({
//             success: false,
//             error: err
//         });
//     });

// };

// const getUpdateQuery = function (status, messageArray) {
//     const query = {};

//     //For Testing
//     query.timeStamp = {};
//     query.timeStamp.$gte = 1570147200000;
//     //

//     if(status === true) {
//         query.message = {}
//         query.message.$in = messageArray;
//     }
//     else if(status === false) {
//         query.message = {}
//         query.message.$nin = messageArray;
//     }
//     else return null;
// };

module.exports = {
	//TODO UNCOMMENT AFTER UPDATE TO MONGO 4.x.x
    // updateErrorPropertiesOnConfigurationChange,
};

configurationController.js
//TODO UNCOMMENT AFTER UPDATE TO MONGO 4.x.x
// updateErrorPropertiesOnConfigurationChange();

//TODO UNCOMMENT AFTER UPDATE TO MONGO 4.x.x
// const { validateCreateConfigurationModel } = require('../validation/validationHelper');