🔖 🐛 Fix for #165 legacy data value converter issues

[robertjf]

No description provided.

[mistyn8]

@robertjf I seem to be hitting this problem too, but my pre version 2 data has Zoom as an int?

{
    "address": {
        "latlng": "55.7718077578719, -4.06716364655761",
        "full_address": "1 Wellhall Rd",
        "postalcode": "ML3 9BZ",
        "state": "Scotland",
        "country": "United Kingdom"
    },
    "mapconfig": {
        "zoom": 15,
        "maptype": "Roadmap",
        "mapcenter": "55.7721095233427, -4.067592799999993"
    }
}

It then fails to deserialise to the LegacyMap Model. Perhaps the fix is to allow for either? (went a simple approach rather than creating a custom convertor)

    public class LegacyMapConfig : MapConfig
    {
        [JsonProperty("mapcenter")]
        [JsonPropertyName("mapcenter")]
        public string MapCenter { get; set; }

        [Newtonsoft.Json.JsonIgnore]
        [System.Text.Json.Serialization.JsonIgnore]
        public new string Zoom { get; set; }

        [JsonProperty("zoom")]
        [JsonPropertyName("zoom")]
        public object _value
        {
            get
            {
                if (int.TryParse(Zoom, out var intValue)) return intValue;
                return this.Zoom;
            }
            set { this.Zoom = value.ToString(); }
        }
    }

[robertjf]

@mistyn8 can you create a separate issue and attach a PR perhaps?

[mistyn8]

@robertjf sure.. PR here #172