Passing LrPhotos in arrays

I know in the table-based world of Lua this is probably klutzy, but hear me out. In one part of my code I am creating an Array of Arrays containing information
about some LrPhotos as well (for good measure) as the actual LrPhotos, and I'm putting it in dialogData.catalog, which is a global property table produced by LrBinding.makePropertyTable. Here is the code that creates that Array of Arrays:
--photos is an array of LrPhotos: for i=1, #photos do local photo=photos[i] local path= photo:getRawMetadata( 'path' ) local dateTimeDigitized= photo:getRawMetadata( 'dateTimeDigitized' ) local uuid= photo:getRawMetadata( 'uuid' ) dialogData.catalog[#dialogData.catalog+1]= {path,dateTimeDigitized, kwImageId, uuid, photo} end
None of the items in the inner array are "keyed" or whatever that is called in Lua, and that doesn't seem to be a problem later when I retrieve the data. I get the path, the dateTimeDigitized, and kwImageId (which is later populated with data from a SQLite database). But no matter what I do, when I try to use the photos (the fifth item in the inner array) later on, it comes back as nil. There doesn't seem to be any way to use photo placed in an array this way. What am I doing wrong? This is driving me insane.

i can confirm that dialogData.catalog[i][5] is an LrPhoto because when i do something like myLogger:trace(tostring(dialogData.catalog[i][5]))
i get
LrPhoto( id "26" )
but when i try to do something like
if myPhoto~=nil then local myPath =myPhoto:getRawMetadata( 'path' ) myLogger:trace( "mypath" ..myPath ) end
the code never gets beyond the
local myPath =myPhoto:getRawMetadata( 'path' )
line. it's as if the getRawMetadata method is impossible and is throwing an error, though not one i ever see.
thanks for the tip about the debugging tools. debugging in the SDK is a royal bιτch.

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Message was edited by:
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