How can I ensure a partial is executed just once? I wrote partial to aggregate views from a json file in the Scratch of each page, sensitive to aliases declared in the page to capture views from prior locations of each page. Because it aggregates views, this partial should only be executed one time…

[image] swamidass: To ensure it was only executed once, I made it a cached partial, but that doesn’t work. Instead, the partial is executed as many times as there are threads, creating some nasty race conditions. The above statement isn’t true, but you’re right, there is not guarantee that it…

[image] bep: [image] swamidass: To ensure it was only executed once, I made it a cached partial, but that doesn’t work. Instead, the partial is executed as many times as there are threads, creating some nasty race conditions. The above statement isn’t true, but you’re right, there is not …

I should also add that many of my pages have aliases. In our migration to hugo most pages changed URLs, but we keep redirects to the old URLs using aliases. And that’s why aggregation is needed, and just a simple lookup won’t do. The partial makes use of hugo’s URL resolution machinery (site.GetPag…

[image] swamidass: I’m not sure exactly what isn’t true. These runs in Goroutines which isn’t the same as threads. If you have 16 Goroutines running and all of them executes this partial at the same time then yes, it may be executed 16 times, but that does not sound like the common case. I…

Evaluate moving the partialCache lock opened 07:21PM - 02 Nov 21 UTC (UTC) [bep] bep Enhancement See: https://github.com/go…

[image] bep: These runs in Goroutines which isn’t the same as threads. Got it. [image] bep: I suggest you rewrite it to do something ala: That doesn’t work because there is only one scratch for the whole site, not one for each page. It’s not clear to me how to efficiently make a mapp…

[image] swamidass: That doesn’t work because there is only one scratch for the whole site, What I’m suggesting is that you get rid of all of that global scope. If: {{ $pagesAndStats := partialCached "byviews" . }} If the aboe partial returned all you needed, it would not matter too much if…

A related tip: There was a discussion earlier where one wanted to run something once after the build, which can be accomplished by defining an output format for the home page and put it last. You can do something similar by putting it first.

[image] bep: What I’m suggesting is that you get rid of all of that global scope. I understand this. But that doesn’t take away the need to have one scratch per page, not one for the whole site. [image] bep: There was a discussion earlier where one wanted to run something once after the …

[image] bep: There was a discussion earlier https://discourse.gohugo.io/t/is-it-possible-to-have-a-content-type-build-last/34917/3

How to ensure partial is executed just once?

support

jmooring November 2, 2021, 8:58pm 11

https://discourse.gohugo.io/t/is-it-possible-to-have-a-content-type-build-last/34917/3

Topic		Replies	Views
How does partial caching actually work? (I'm not getting the results I expected) support	14	2045	January 17, 2021
.Scratch in partial weird in Netlify support	8	187	November 25, 2024
Issues with Scratch and maybe (?) caching	8	950	April 8, 2021
Partials sometimes do not render after each build support	6	1188	December 18, 2020
partialCached generates the partial once per language support	10	665	November 10, 2018

How to ensure partial is executed just once?

Related topics