Forum Discussion

crawfishmedia's avatar
crawfishmedia
Binge Watcher
12 years ago

Adding roAssociativeArray to roArray

Hi I am not sure if its because its late tonight but I cannot seem to solve this issue.
After I add an associative array to an array, I print the count of the array, it comes up as 0.
Based on the documentation I should use Append, to add an Associative Array entry to an Array.

json = fetch_JSON(api_url)
limit=10
ssContentA = CreateObject("roArray", limit, true)
ssContentAA = CreateObject("roAssociativeArray")

for i=0 to limit-1 step 1

blogname = json.response.liked_posts.blog_name
ssContentAA.AddReplace("TextOverlayBody",blogname)

ssURL=json.response.liked_posts.photos[0].original_size.url
ssContentAA.AddReplace("url",ssURL)

ssContentA.Append(ssContentAA) ' this is correct no???

end for

print ssContentA.Count() ' comes up as 0 !

Thanks to anyone who can help keep my sanity

AC
Roku Developer Program

6 Replies

  • RokuMarkn's avatar
    RokuMarkn
    Visitor
    12 years ago
    Right, you can only Append() an roArray to another roArray. It doesn't make sense to append an AA (what are you appending, the keys or the values?). You should iterate the AA and Push the values you want.

    --Mark
  • crawfishmedia's avatar
    crawfishmedia
    Binge Watcher
    12 years ago
    "RokuMarkn" wrote:
    Right, you can only Append() an roArray to another roArray. It doesn't make sense to append an AA (what are you appending, the keys or the values?). You should iterate the AA and Push the values you want.

    --Mark


    What I am trying to do is take my JSON response, and extract only the data I want. The way I currently understand this is that I need to have an array of associative arrays, which will be loaded as content metadata into the roSlideshow. Whether I push or append my associative array ssContentAA into the ssContentA array at location , the output of the final array is all the same data. I verified I am looping through the JSON data and loading it into each ssContentAA okay, by printing each iteration. The problem I am not able to overcome is that each location in the ssContentA array is the same. Here is my latest code:

    ssContentA = CreateObject("roArray", json.response.liked_posts.count(), true)
    ssContentAA = CreateObject("roAssociativeArray")

    print "[INFO] Preparing Slideshow"
    for i=0 to json.response.liked_posts.count()-1

    blogname = json.response.liked_posts.blog_name
    ssURL = json.response.liked_posts.photos[0].original_size.url 'only get the first photo for now

    ' replace the current entry with new data
    ssContentAA["TextOverlayBody"] = blogname
    ssContentAA["url"] = ssURL

    ' print the photo we saved
    print "Photo";i
    print ssContentAA.TextOverlayBody;" : ";ssContentAA.url

    ssContentA = ssContentAA ' load aa onto a playlist

    end for

    print "[TEST] Testing content arrays..."
    print "[TEST]";ssContentA.Count();" Items in ssContentA"

    for i=0 to ssContentA.Count()-1
    print "photo";i
    for each key in ssContentAA
    print key;" =";ssContentAA[key]
    end for
    end for

    The data in all 20 entries in the ssContentA array are the same. I don't understand. Sorry to be a pita, but please what am I doing wrong?

    Also this is how I am loading my slideshow:

    ss = CreateObject("roSlideShow")
    ss.SetMessagePort(port)
    ss.SetPeriod(10)
    ss.SetContentList(ssContentA)
    ss.Show()
  • destruk's avatar
    destruk
    Streaming Star
    12 years ago
    I think you should change this line --
    ssContentA = ssContentAA ' load aa onto a playlist

    to

    ssContentA.Push(ssContentAA) ' load aa onto a playlist

    And see what that gets you.
  • crawfishmedia's avatar
    crawfishmedia
    Binge Watcher
    12 years ago
    "destruk" wrote:
    I think you should change this line --
    ssContentA = ssContentAA ' load aa onto a playlist

    to

    ssContentA.Push(ssContentAA) ' load aa onto a playlist

    And see what that gets you.


    I get a Type Mismatch error
  • crawfishmedia's avatar
    crawfishmedia
    Binge Watcher
    12 years ago
    Think I solved it. I looked at the USBPlayer DSK code in main.brs. I used the following:


    ' replace the current entry with new data

    ssContentAA["TextOverlayBody"] = blogname
    ssContentAA["url"] = ssURL

    ssContentA.Push({
    TextOverlayBody: blogname
    url: ssURL
    })

    This seems to work fine. You're right, trying to load an AA into an A does not seem to work.
    Thanks.