Re: Re: prevPageToken problem

Don't really understand why you need anything so complicated??

If you store the 'next' tokens in an array, the current index to that array 
will point to the token for the current page, as long as the index is 
updated correctly.
The exception will be when the index is zero or at the start of the array, 
in that case there is no token and you just request the initial page using 
the key and forget about using a token.



On Friday, January 31, 2014 5:56:26 PM UTC, Doug Jolley wrote:
>
> I thought I'd through out for comment how I intend to approach the 
> prevPageToken issue.
>
> As the user pages through the list of posts, I intend to "remember" the 
> nextPageToken from the preceding page.  That becomes the page token for the 
> current page (i.e., the currentPageToken.  I then use that along with the 
> nextPageToken for the current page to build up a hash.  The "keys" of the 
> hash will correspond to values for the currentPageToken while the "values" 
> of the hash will correspond to the values of the nextPageToken.  So for any 
> given page, I can grab the value of the nextPageToken for that page and use 
> it to obtain the currentPageToken from the hash.  Once I have the 
> currentPageToken, I can use that to obtain the prevPageToken from the hash. 
>  Of course, this whole process would be greatly simplified if I could just 
> get the currentPageToken from the API.  That's why I asked if that was 
> possible.
>
> I must admit that I can't imagine what the "internal implementation 
> reasons" could possible be that would cause Google to stop providing the 
> prevPageToken.  It's very conspicuous by its absence from the API and that 
> absence goes a long way towards undermining the overall utility of the API. 
>  I certainly hope that this whole thing isn't just some big 
> misunderstanding and we're jumping through all these hoops for no reason.
>
> Thanks to all.
>
>            ... doug
>>
>>  

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