Extension talk:Cargo

Self-Inflicted Duplicate Issue
Putting the solution at the top! Don't do this: My MediaWiki Page -> My Template #1 -> Cargo Query using Template #2 for display -> Template #2 stores Cargo data. Re-using Template #2 caused rebuilding of the associated Cargo database to pick up on My Mediawiki Page as something to include in Cargo despite the exact same data being present in Template #2. Thanks to Yaron Koren for patiently debugging my recursive template usage issue.

Original problem follows... This isn't a recurrence of the duplicate rows issue that cropped up in 2021. I am 99.9% sure it's self-inflicted.

Steps
 * 1) Import page data from Excel into MyCargoDB.  All pages are prefixed with CARGO ("CARGO_MyPageName") because they're data, not to be looked at directly by readers.
 * 2) The template MyTemplate queries data pulled into Cargo from the imported CARGO pages.
 * 3) Page called MyPageName uses MyTemplate to display data pulled into Cargo from CARGO_MyPageName.
 * 4) Rebuild MyCargoDB.
 * 5) Now MyPageName using MyTemplate displays Cargo data twice.
 * 6) The view in Cargo Tables of MyCargoDB shows CARGO_MyPageName AND now MyPageName which explains why it's appearing twice.
 * 7) If this keeps up I'll have 150 duplicates.

I'm not sure what mistake I've made to create this circular import into Cargo.

SovereignGFC (talk) 15:06, 2 May 2023 (UTC)


 * That first step sounds odd - are you directly creating a table within the database? If so, you shouldn't do that - the data stored by Cargo should always reflect what's in the wikitext. Could that be the issue? Yaron Koren (talk) 02:56, 3 May 2023 (UTC)
 * Apologies, I am not directly creating a table. I import through an extension that creates wiki pages from said Excel sheet that match MyTemplate.
 * After importing, I immediately execute runJobs.php.
 * I then Recreate data on MyCargoDB.
 * If any MyPageName using MyTemplate that got put into MyCargoDB exists at that point, MyCargoDB gains an entry from MyPageName even though MyCargoDB was already populated by MyTemplate. SovereignGFC (talk) 22:02, 3 May 2023 (UTC)
 * Okay, never mind. Well, it's strange that pages that look simply like "MyPageName" are showing up as holding Cargo data - even though they're meant to only display, not store, Cargo data. What exactly is in the template "MyTemplate"? Yaron Koren (talk) 14:30, 4 May 2023 (UTC)
 * MyTemplate is NOT a Cargo-generated template. It is an actual page template that DOES contain Cargo queries using templates created by Cargo's Create a class. SovereignGFC (talk) 01:11, 5 May 2023 (UTC)
 * Well, does MyTemplate contain a call to #cargo_store? And if not, how are the pages that call it getting Cargo data stored for them? Yaron Koren (talk) 17:32, 5 May 2023 (UTC)
 * MyTemplate does not have calls to #cargo_store.
 * MyPageName -> MyTemplate -> Cargo query in MyTemplate -> Separate Cargo-specific pages/templates referenced in query. SovereignGFC (talk) 18:29, 5 May 2023 (UTC)
 * Alright. Well, barring more information about your setup, I'm totally stumped - I have no idea how pages like MyPageName could show up in Special:CargoTables. Yaron Koren (talk) 18:43, 5 May 2023 (UTC)
 * What additional information might be helpful? SovereignGFC (talk) 00:50, 6 May 2023 (UTC)
 * The contents of MyPageName and MyTemplate, I suppose. Yaron Koren (talk) 13:29, 7 May 2023 (UTC)

Header in dynamic table
How to change header in dynamic table?

Tamplate:

Table header looks like this:

Thanks! -- Oleksii 212.80.47.83 06:58, 6 May 2023 (UTC)


 * Add something like "=ColumnName" after the final ")" - i.e., set an alias for the field. Yaron Koren (talk) 13:30, 7 May 2023 (UTC)
 * how to display format=dynamic table in Lua?
 * the word 'format' seems to be a Lua reserved word
 * --Oleksii 212.80.47.83 15:55, 7 May 2023 (UTC)
 * There might not be any way to display result formats from within a Lua Cargo query - I'm not sure. Yaron Koren (talk) 02:42, 8 May 2023 (UTC)
 * There might not be any way to display result formats from within a Lua Cargo query - I'm not sure. Yaron Koren (talk) 02:42, 8 May 2023 (UTC)

WITHIN statement error when a Hierarchy item has an apostrophe
I have a hierarchy definition in a template that includes the item "St. Mary's Anglican Church". When I try to query this with a WITHIN statement, I get an error that appears to split this at the apostrophe: WHERE Collection IN ( SELECT `_value` FROM `cargo__CollectedIn__Collection__hierarchy` WHERE `_left` >= ( SELECT `_left` FROM `cargo__CollectedIn__Collection__hierarchy` WHERE `_value` = "St. Mary' ) AND `_right` <= ( SELECT `_right` FROM `cargo__CollectedIn__Collection__hierarchy` WHERE `_value` = "St. Mary' ) )s Anglican Church") ORDER BY `cargo__Collection`.`_pageID`,`cargo__Collection`.`_pageName` . When I put double-quotes around a string with an apostrophe in a WHERE clause this seems to work fine. Is this a bug or am I writing the query wrong? Thanks! Tenbergen (talk) 04:10, 9 May 2023 (UTC)


 * Sorry for the delay. That's definitely a parsing bug in Cargo. Yaron Koren (talk) 12:54, 7 June 2023 (UTC)

Recreate and 500 Line Bug Again

 * MediaWiki 1.39.3
 * Cargo 3.4.2

When I kick off re-create data from the Cargo tables page, it gets stuck at 500 lines.

When I import a spreadsheet to that same table/template with 500+ lines and execute runJobs.php, the table populates.

What additional diagnostic or debugging data can I provide? SovereignGFC (talk) 03:40, 13 May 2023 (UTC)


 * Sorry, I missed this before. Do you see any errors in the browser's JavaScript console? Yaron Koren (talk) 02:37, 29 May 2023 (UTC)
 * Now that the backup function (export to Excel which keeps my special character filled text intact) works thanks to the phpspreadsheet update, I was able to test this.
 * Open browser dev/debug tools.
 * Recreate data link on template page, Cargo view all tables page (line of the table), or Cargo table (table to be recreated).
 * ...no errors detected. The command to recreate data just returns a 200 OK.
 * Invoke runJobs.php. Observe that only 500 rows exist.
 * SovereignGFC (talk) 01:32, 2 June 2023 (UTC)
 * If you run cargoRecreateData.php from the command line on that table, does that work? Yaron Koren (talk) 13:09, 7 June 2023 (UTC)

Vertical list of names be grouped by the initial letters
Sorry if my question has already been asked here, but I have just started using Cargo. How could a vertical list of names (from Cargo databases) be grouped by the letters of the alphabet using a Cargo query? Lalo5555 (talk) 08:49, 27 May 2023 (UTC)


 * If you use the "category" format, it will provide a display that's hopefully close enough to what you are looking for. Yaron Koren (talk) 02:36, 29 May 2023 (UTC)

Export as Excel, Composer, What Did I Miss?
(This is preventing me from properly testing the 500-line recreate bug as I want to back up my big table beforehand!)

When I try to export as Excel, I get a 500 internal server error when I click on the link to download. Unfortunately, even with MediaWiki debug on, that's all I do get: HTTP/1.1 500 Internal Server Error Date: Wed, 31 May 2023 02:41:54 GMT Server: Apache X-Powered-By: PHP/7.4.33 X-Content-Type-Options: nosniff X-Request-Id: ZHaz8pqI3nmiV89-O7ng8wAAAss Strict-Transport-Security: max-age=63072000; includeSubDomains X-Frame-Options: SAMEORIGIN Content-Length: 0 Connection: close Content-Type: text/html; charset=UTF-8

I have Composer installed at the same level of directory as MediaWiki and I confirm that phpoffice/phpspreadsheet is installed (1.19.0). I know it works because I can import spreadsheets just fine...but not export for some reason. SovereignGFC (talk) 02:46, 31 May 2023 (UTC)


 * The "excel" format code is very old, and it actually uses the PHPExcel library, not PhpSpreadsheet. Yaron Koren (talk) 13:04, 31 May 2023 (UTC)
 * Inspired by this discussion, I just added support for PhpSpreadsheet to the "excel" format. At least, in theory - I haven't actually tried running it. But there's a chance that it works! Yaron Koren (talk) 15:54, 1 June 2023 (UTC)
 * Can confirm this works!
 * I did the very proper and sophisticated thing of "copy entire single changed file and paste text into existing version" before running the query.
 * All 800+ items exported without issue. SovereignGFC (talk) 00:51, 2 June 2023 (UTC)
 * That's great to hear! Yaron Koren (talk) 02:44, 2 June 2023 (UTC)
 * One item of note: It defaults to the XLS extension, not XLSX. Excel 2021 complains the file doesn't match the extension and it may be a security issue.
 * I'm guessing that either specifying XLS format and keeping the XLS extension or changing it to use XLSX would make this nag go away. SovereignGFC (talk) 12:12, 5 June 2023 (UTC)
 * Ah, good point. XLSX seems to be the superior format, so I just changed the default filename to be "results.xlsx". Yaron Koren (talk) 15:03, 5 June 2023 (UTC)

Remove unwanted comma from results if fields are empty
I have this table with the fields ImageText and ImageFile being optional:

If ImageText and ImageFile have values, they display framed images with captions using this query:

This works fine, but how do I remove the commas from the display when ImageText and ImageFile are empty? Tahoma403 (talk) 04:22, 7 June 2023 (UTC)


 * It could that just adding  to the #cargo_query call will fix the problem. Yaron Koren (talk) 13:10, 7 June 2023 (UTC)
 * That removed,  ,  ,  ,  ,   from the top of the results, but in between each  , I still get one  ,   for some reason. Any idea? Tahoma403 (talk) 06:23, 8 June 2023 (UTC)
 * I think that's just due to MediaWiki's own display of images, though I could be wrong. Have you considered using the "gallery" format for this data, by the way, instead of assembling wikitext? It might be a nicer-looking output. Yaron Koren (talk) 12:32, 8 June 2023 (UTC)
 * Yes, that must be the reason then. I have looked at format=gallery before, but couldn't figure out where to put ImageFile in the query - would you mind showing where/how to put it in the fields= parameter to display the image and caption? Tahoma403 (talk) 13:09, 10 June 2023 (UTC)