BOM, Substitutes, Build Order Report and context variables

[SergeoLacruz]

Hi,
After importing of 2500 components from an old library I now started to work on the output side.
The substitutes function in BOM is a very useful feature for last minute changes or in case of
component shortage. But I have a problem with exporting those.
In a BOM export the substitutes do not show up. I think this is OK because they might belong to
the build order. There I do final definition using the stock allocation.
Using the build order report template dour not report substitutes. So I started to play with the
context variables, documented and undocumented ones:

https://github.com/SergeoLacruz/inventree-docs/blob/master/docs/report/build.md

I could not dig any deeper so far. Is it possible to document the substitutes in that way or
is there another (better) solution? Thanks in advance,

Michael

[matmair]

@SergeoLacruz the reporting feature is somewhat undocumented — it might be that the substitutes are not exposed. That is not a problem, we can easily add that, should a 1-liner

[SchrodingersGat]

@SergeoLacruz I would very much appreciate a PR against the documentation repo based on what you have there - it looks great!

Regarding substitutes, you should be able to do something like:

{% for line in build.bom_items %}
{% for sub in line.substitutes %}
...
{% endfor %}
{% endfor %}

[SergeoLacruz]

Thanks for the hint. I will try this later the day.

[SergeoLacruz]

line.substitutes.all does the trick. I created a first example.

https://github.com/SergeoLacruz/inventree-docs/blob/master/docs/assets/images/report/bom_example.png

To me this looks like a very powerfull system for documentation. I think we can more or less automatically create what we call a build instruction. I will describe this BOM example soon.