custom property editor with valuetype json

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David Knittl 13 posts 114 karma points

Mar 25, 2019 @ 15:40
1

Custom Property Editor with valueType JSON

Umbraco 8

Umbraco 8
Hi there,

I'm trying to implement a custom property editor in Umbraco 8. I know that the video on Umbraco.tv is outdated, but I still followed the instructions in

https://umbraco.tv/videos/umbraco-v7/developer/extending/property-editors/storing-complex-data/

and created my package manifest where I declared the valueType as JSON:
```
{
    propertyEditors: [
        {
            alias: "MyEditor",
            name: "myEditor",
            editor: {
                view: "~/App_Plugins/MyEditor/myEditor.editor.html",
                valueType: "JSON"
            }
        }
    ]
}
```
In the view I try to bind two inputs to their corresponding properties (ng-model="model.value.val1" and ng-model="model.value.val2"):
```
<input name="numberField1" class="umb-property-editor umb-number" type="number" ng-model="model.value.val1" />
<input name="numberField2" class="umb-property-editor umb-number" type="number" ng-model="model.value.val2" />
```
When I try to use this data type in the Umbraco backoffice, I get a Javascript error:

Cannot create property 'val1' on string ''

Does anyone know what changed in Umbraco v8 compared to v7 regarding custom property editors? Since the documentation is also not yet updated, I have no idea what's wrong here.

Thanks in advance for any help you can provide!

Cheers, David
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David Knittl 13 posts 114 karma points

Apr 03, 2019 @ 14:20

0

Nobody has any idea why this is?

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Dennis Flæng Jørgensen 35 posts 145 karma points c-trib

Apr 03, 2019 @ 16:06
104
According to this post JSON is saved as ntext in the database. It might be because a string is the default value for that datatype. Im not sure if its an new issue in v8.

What you can do as a fix is putting this in the controller for your property editor:
```
    var initModelValue = $scope.$watch('model.value', function (model) {
        if (typeof model === 'string' && model.length == 0)
            $scope.model.value = {};
        initModelValue(); //Deregisters the watch so we wont waste resources
    });
```
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David Knittl 13 posts 114 karma points

Apr 12, 2019 @ 13:35

0

Cool, thanks! That works flawlessly!

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