@chrisfr1976
Thank you for sharing. This helped me it seems it was an issue with my conditions using the ev.title.search(‘string’) solved my issue.

                eventTransformer: (ev) => {
                    if (ev.calendarName === "Trash") {
                        const trash = [];
                        ev.color = 'gray';

                        if (ev.title.search('Altpapiertonne') > -1) {
                            trash.push("fa-solid fa-trash trash-blue")
                        }

                        if (ev.title.search('Gelbe Tonne') > -1) {
                            trash.push("fa-solid fa-trash trash-yellow")
                        }

                        if (ev.title.search('Biotonne') > -1) {
                            trash.push("fa-solid fa-trash trash-brown")
                        }

                        if (ev.title.search('Restmülltonne') > -1) {
                            trash.push("fa-solid fa-trash trash-black")
                        }

                        ev.symbol = trash;
                        if (trash.length === 0) {
                            ev.symbol = [];
                            ev.color = "none";
                        }
                    }
                    return ev;
                }
            }
        }

Hello everyone,

I am using a Raspberry Pi 5 with the latest MM version and the latest version of the MMM-CalendarExt3 module.

I would like to display the garbage emptying which works so far. Unfortunately, the ics feed in the title provides all the different garbage cans that are emptied, e.g.:

{
    "title": "Restmülltonne, Biotonne, Altpapiertonne, Gelbe Tonne",
}

My goal was to display icons in different colors in the title.

In detail:
Restmülltonne = Black garbage icon
Biotonne = Brown garbage icon
Altpapiertonne = Blue garbage icon
Gelbe Tonne = Yellow garbage icon

This also works so far, but when the refreshInterval of the MMM-CalendarExt3 takes effect, the eventTransformer is apparently no longer executed correctly in my case.

Here is a shortened version of the configuration with which you can recreate the problem:

let config = {
    address: "0.0.0.0",
    port: 8080,
    basePath: "/",
    ipWhitelist: [],
    useHttps: false,
    httpsPrivateKey: "",
    httpsCertificate: "",
    language: "de",
    locale: "de-DE",
    logLevel: ["INFO", "LOG", "WARN", "ERROR"],
    timeFormat: 24,
    units: "metric",
    modules: [

        // ***** CALENDAR MODULES *****
        {
            module: "MMM-CalendarExt3",
            position: "top_bar",
            config: {
                firstDayOfWeek: 1,
                refreshInterval: 6000,
                weeksInView: 4,
                useMarquee: true,
                maxEventLines: 4,
                customHeader: false,
                eventFilter: (ev) => {
                    if (ev.calendarName === "Trash") {
                        let relevantTitles = ["Restmülltonne", "Biotonne", "Gelbe Tonne", "Blaue Tonne"];
                        return relevantTitles.some(title => ev.title.includes(title));
                    }
                    return true;
                },
                eventTransformer: (ev) => {
                    if (ev.calendarName === "Trash") {
                        const trash = [];
                        const strArray = ev.description.split(',').map(item => item.trim());
                        console.log(ev)
                        for (let item of strArray) {
                            if (item === "Restmülltonne") trash.push("fa-solid fa-trash trash-black");
                            else if (item === "Biotonne") trash.push("fa-solid fa-trash trash-brown");
                            else if (item === "Gelbe Tonne") trash.push("fa-solid fa-trash trash-yellow");
                            else if (item === "Altpapiertonne") trash.push("fa-solid fa-trash trash-blue");
                        }

                        ev.description = trash.join(', ');
                        ev.symbol = trash;
                        if (trash.length === 0) {
                            ev.symbol = [];
                            ev.color = "none";
                        }
                    }
                    return ev;
                }
            }
        },
        {
            module: "calendar",
            header: "Termine",
            config: {
                broadcastPastEvents: true,
                maximumEntries: 10000,
                calendars: [
                    {
                        name: "Trash",
                        fetchInterval: 3000,
                        useSymbol: false,
                        url: "webcal://-849/feed.ics",
                        color: "none"
                    },
                ]
            }
        },
    ]
};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {
    module.exports = config;
}

Does anyone have any ideas or is there perhaps a better way to solve the problem?

Thanks in advance