Adding a data storage stack to the documents folder

[quailcreek]

Hi,
I have what I know is a question with a simple answer. I’m not new to LC but I am pretty new to iOS. I just spent a bit of time building a data storage stack with lots of custom properties. I want to be able to store and retrieve the properties for my app. After building the data stack I tried to add the data stack to my app in the using the standalone settings, STACKS. No joy. So, do I add it using “copy files”? How do I add the storage stack to my app bundle? My second question is how do I insure that the data stack ends up in the documents folder in the app bundle?

Thanks,
Tom

[Simon]

Hi Tom,
Yes, you use "Copy Files" it will end up in specialFolderPath("engine") so you have to move it from there into specialFolderPath("documents") before you can save data to it.

Code: Select all

 put url("binfile:" & specialFolderPath("engine") & "/myData.rev") into  \
               url("binfile:" & specialFolderPath("documents") & "/myData.rev")

Simon

[quailcreek]

Thanks a lot Simon. That takes a load off my mind.

[quailcreek]

Hi Simon. Shouldn't this work? Anything after the put statement in the mouseUp handler is being ignored. What am I doing wrong?

Code: Select all

global gDataStackPath
on OpenStack
   if the environment is "mobile" then
      put specialFolderPath("documents") into tDataStackPath
      put tDataStackPath & "/MyData.livecode" into gDataStackPath
      
      ## Need to find out when to run this
      if not (there is a file gDataStackPath) then
         put url("binfile:" & specialFolderPath("engine") & "/myData.livecode") into url("binfile:" \
               & specialFolderPath("documents") & "/myData.livecode")
      else
         answer "There is a file"
      end if
end openstack

Code: Select all

global gDataStackPath
on mouseUp
   if the environment is "mobile" then
      put the cpData[“Continents”] of stack gDataStackPath into pickList
      answer pickList
   end if
end mouseup

[Simon]

Oh Oh I think I know this one!
Mobile is case sensitive.

The other thing is to delete the app during testing to make sure the documents folder is clean.

Simon
Edited:

[quailcreek]

OK so you mean the file name is case sensitive? Remember I'm newish to iOS. How do I delete the app during testing?

[Simon]

Yeah, best to be consistent with mobile.

Delete the app from the device, ummm... press/click and hold till everything is shaking delete the app then click on Home.
Are you on the sim or a real device?

Simon

[quailcreek]

I'm on the sym. I found it. There's a reset in the pull down. I deleted the app.

MouseUp script is still not working though. It does get further along so I think fixing the case on the file name did some good. It isn't finding the properties. The mouseUp is supposed to pull that properties and populate the choices in a pickwheel. The pickwheel shows up but it's empty.

[Simon]

Better check your file

Code: Select all

global gDataStackPath
on mouseUp
   if the environment is "mobile" then
set the defaultFolder to specialFolderPath("documents")
answer the detailed files
      put the cpData[“Continents”] of stack gDataStackPath into pickList
      answer pickList
   end if
end mouseup

I just spent an hour copying a 0 byte stack and expecting it to work.

Simon

[quailcreek]

Found the problem. When I first ran the app on the sym I had not yet attached the data stack. So it created one that was obviously empty. Resetting/deleting the app from the sym fixed the problem. All runs fine now.

Do I just set the new properties in the data stack and then save it or do I need to open it as hidden first.

[Klaus]

Do I just set the new properties in the data stack and then save it...

Yes.

...or do I need to open it as hidden first.

No, but you need to CLOSE that stack nevertheless after saving it, or when your app closes!

[quailcreek]

Thanks Klaus. I added an on closeStack to save and close the data stack.

[quailcreek]

The oddest thing just happened. The openStack handler stopped working. If I change it to preOpenStack it works. Anyone else run into this?