You found a bug! We've classified it as TOUCH-3980 . We encourage you to continue the discussion and to find an acceptable workaround while we work on a permanent fix.
  1. #1

    Default Serious Bug in how "data" properties are being handled in ST 2.1

    Serious Bug in how "data" properties are being handled in ST 2.1


    Sencha Touch version tested:
    • Sencha Touch 2.1 - Build date: 2012-11-05 22:31:29 (08c91901ae8449841ff23e5d3fb404d6128d3b0b)
    Browser versions tested against:
    • Chrome 24.0.1312.57
    • Safari iOS 6
    Description:
    • Our application was created with Sencha Touch 2.0.1, and is in production already. In multiple parts, I used the "data" property of the objects to store information I needed for later retrieval, in some cases that information is a number or a boolean. After updating our application to use Sencha Touch 2.1, I discovered, to my surprise, that the framework now replaces the data properties that are considered [false] with an empty object. This silent change broke several parts of our application, and I really don't see why Sencha would try to parse my "data" values anyhow, since it's supposed to store values chosen by the developer.
    Steps to reproduce the problem:
    • Create an element with the sample I appended below.
    The result that was expected:
    • The values in the data properties should not be modified by the framework
    The result that occurs instead:
    • Values considered "false" are being converted to empty Objects ({})
    Test Case:
    Code:
    (...)
        {
            xtype: 'segmentedbutton',
            allowDepress: false,
            items: [
                {
                    text: 'Option 1',
                    data: 0, // this will become an empty Object ({})
                    pressed: true,
                    flex: 1
                },
                {
                    data: 1,
                    text: 'Option 2',
                    flex: 1
                }
            ]
        },
    (...)
    
    
    
    
    (...)
        {
            xtype: 'segmentedbutton',
            allowDepress: false,
            items: [
                {
                    text: 'Option 1',
                    data: true,
                    pressed: true,
                    flex: 1
                },
                {
                    data: false, // this will become an empty Object ({})
                    text: 'Option 2',
                    flex: 1
                }
            ]
        },
    (...)
    Possible fix:
    • Somewhere in the framework probably there's a code piece like "if (!data) data = {}", and this should not exist. If it HAS to exist somehow for the framework to work, create another private property, don't use a property publicly available to the developers and change its value silently without letting us know about it.

  2. #2
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    Thanks for the report! I have opened a bug in our bug tracker.

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