Propoer Implementation of datastore

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1

I'm using VS Code to build a project for Playdate.

I'm having issues using datastore properly. I'm able to write to "sav" using datastore.write, but what I need to do next is draw data from that .json file. Inside Playdate says that playdate.datastore.read returns a table. However, I haven't had any luck seeing the data after trying to use datastore.read.

I've tried what I thought would work, such as:

local someTable = playdate.datastore.read("sav")

Yet when I test the table to see what is in it (using printTable(someTable)), I get an empty table.

Anyone know what I'm doing wrong?

2

You need to specify the filename you saved it to. Default is "data". The name of your original table isn't included in the save data.

https://sdk.play.date/inside-playdate/#M-datastore

-- set table
sav = {x=10, y=20, label="something"}
-- write save data
playdate.datastore.write(sav, "file")
-- clear table
sav = {}
-- load save data
sav = playdate.datastore.read("file")
-- print loaded data
printTable(sav)
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3

Thanks for the reply.

What I had was essentially what you posted: my issue was that I wasn't calling the function that displayed sav.json contents appropriately.

Thanks again!

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