module.addModelHistory = function()

in routes/onedoc.js [137:178]
39 lines of code
4 McCabe index (conditional complexity)

    module.addModelHistory = function (model, oldDoc, newDoc) {
        // ASF
        asf.asfhookaddhistory(oldDoc, newDoc);
        // END ASF
        if (oldDoc === null) {
            oldDoc = {
                __v: -1,
                _id: newDoc._id,
                author: newDoc.author,
                updatedAt: newDoc.updatedAt,
                body: {}
            }
        }
        var auditTrail = {
            parent_id: oldDoc._id,
            updatedAt: newDoc.updatedAt,
            author: newDoc.author,
            __v: oldDoc.__v + 1,
            body: {
                old_version: oldDoc.__v,
                old_author: oldDoc.author,
                old_date: oldDoc.updatedAt,
                patch: jsonpatch.compare(oldDoc.body, newDoc.body),
            },
        };
        //todo: eliminate mongoose and call InsertOne directly
        if (auditTrail.body.patch.length > 0) {
            model.bulkWrite([{
                insertOne: {
                    document: auditTrail
                }
            }], function (err, d) {
                if (err) {
                    console.log('Error: saving history ' + err);
                } else {
                }
            });
            return auditTrail;
        } else {
            return null;
        }
    }