Add parsing of nested Dictionaries/Arrays

[timjrobinson]

• Add new array2fields function that formats Arrays for Firestore correctly.
• Change dict2fields function to use array2fields on Arrays.
• Both array2fields and dict2fields recursively call one another to parse the entire object.
• Return new object from dict2fields instead of modifying object passed in, so that calling it twice on the same object doesn't break it.

This works with the following test object I was trying to save to firestore:

var islandData = {
    'ground': [
        {
            'x': 0,
            'y': 0
        },
        {
            'x': 1,
            'y': 0
        }
    ],
    'towers': [
        {
            'x': 0,
            'y': 0,
            'upgrades': []
        },
        {
            'x': 1,
            'y': 0,
            'upgrades': [
                {
                    'id': 'flamethrower',
                    'level': 2,
                    'attachpos': 'main'
                }
            ]
        }
    ]
}

[fenix-hub]

Hi @timjrobinson , Is there a specific reason you would like to implement the array2fields method? Are you having issues creating a dictionary of fields? Or is it limiting your flow in any way?

[timjrobinson]

@fenix-hub Just updated with test item that wasn't saving to Firestore. The new code saves it out correctly.

[fenix-hub]

@timjrobinson Maybe old changes broke compatibilty with Arrays. Thank you very much for your PR. It will be merged together with a little update with the Authentication module, later today.

Always feel free to contribute, but please always mention what is the issue you are encountering that your PRs will resolve, so we will be able to test them too and merge them faster. Thank you! :)

[timjrobinson]

Sure will do, thanks!