What the heck? Writing and reading ios files??

[JB]

I didn’t test the code so I do not know what
is happening with the file.  But and idea to
test for problems is only write code that will
put something like :Hello world!” into the file
and see if you can locate the file on your
drive.  If you still have the problem at least
it can be fixed within that few lines of code
or it might be a bug of some sort.

JB


> On Jun 24, 2020, at 8:04 PM, prothero--- via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Added info:
> I’ve tried putting the files in “cache”, in the “Documents” folder directly, and using 
>> put URL ("file:"&tFile) 
> to store the data. Didn’t change anything.
> I also looked at the lesson on reading and writing livecode files. Nothing helps.
> 
> I’m using Livecode Business 9.6.0 on a Mac running 10.15.5
> 
> This is the last hurdle I have before am finished with this project. Any suggestions would be mucho appreciated.
> 
> Best,
> Bill
> 
> William A. Prothero
> Santa Barbara, CA. 93105
> http://earthlearningsolutions.org/
> 
>> On Jun 24, 2020, at 5:35 PM, prothero--- via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> Folks:
>> I’m having a very weird problem writing then reading the same file on ios. I must be missing something very basic. I’ve checked the path to the file when it is written and it matches exactly to the path when I try to read it. In the read routine, I check for the file’s existence and it says it doesn’t. But when I write the file and immediately check for the file’s existence (in the same handler), it says it exists. I’ve checked the path with the debugger and the path it writes to is exactly the same as the path it looks for the file in.
>> 
>> I must be missing something very basic. It works on my dev system, but in the phone, it can’t find the files it just wrote. Is there some kind of permission needed? I’m stumped.
>> 
>> Please enlighten me. There must be some really, really basic thing I’m missing. 
>> 
>> Thanks,
>> Bill
>> 
>> --retrieves an arbitrary array from the waterdetective local storage folder
>> 
>> function getArrayFromLocal fName
>> 
>> put getPathToUserDocuments() into tFloc
>> 
>> put tFloc&"/"&"waterdetective/"&fName into tFile
>> 
>> if the last char of tFile is cr then
>> 
>> delete the last char of tFile
>> 
>> end if
>> 
>> —It can’t find the file I just wrote
>> if there is a file tFile then
>> 
>> put URL ("binfile:"&tFile) into temp
>> 
>> put base64decode(temp) into temp
>> 
>> put arrayDecode(temp) into tArray
>> 
>> else
>> 
>> return ""
>> 
>> end if
>> 
>> return tArray
>> 
>> end getArrayFromLocal
>> 
>> 
>> function getPathToUserDocuments
>> 
>> put specialFolderPath("Documents") into tPath
>> 
>> return tPath
>> 
>> end getPathToUserDocuments
>> 
>> on saveArrayToLocal fName,tArray
>> 
>> if fname contains "meterReadingsA" then
>> 
>> breakpoint
>> 
>> end if
>> 
>> --put tNameExt after fName
>> 
>> if the last char of fName is cr then
>> 
>> delete the last char of fName
>> 
>> end if
>> 
>> put getPathToUserDocuments() into tFloc
>> 
>> put tFloc&"/"&"waterdetective" into tFolder
>> 
>> checkCreateFolder tFolder
>> 
>> put tFolder&"/"&fName into tDataFile
>> 
>> delete file tDataFile
>> 
>> put arrayEncode(tArray) into temp
>> 
>> put base64encode(temp) into tData
>> 
>> put tData into URL ("binfile:"&tDataFile)
>> 
>> wait 2 seconds
>> 
>> if there is a file tDataFile then
>> 
>> put "Yes" into x   —on ios I get “Yes"
>> 
>> put tDataFile into theLocalPath
>> 
>> else
>> 
>> put "No" into x
>> 
>> end if
>> 
>> end saveArrayToLocal
>> 
>> William A. Prothero
>> Santa Barbara, CA. 93105
>> http://earthlearningsolutions.org/
>> 
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