Fix inventory quantity errors to be tied to organization, not storage location (Fixes #4647)

[McEileen]

Resolves #4647

Description

• Errors for item minimum level are now tied to organization quantity, not storage location quantity.
• Errors for item minimum level now display as warnings (black on yellow), rather than as errors (white on red).
• Errors for item recommended level are now tied to organization quantity, not storage location quantity.
• I added tests to distributions_controller_spec and inventory_check_service_spec to confirm the changes.
• When a distribution triggers both a minimum level error and a recommended level error, both error messages display. The minimum error message displays first.
• When both the minimum and recommended level errors display, they display on the same line. I'm not sure if this is desired, or if they should display on separate lines? I will include a screenshot of this scenario. If they should display on separate lines, I'm happy to make the change.
• In order to test the scenario where both a minimum and recommended level error occur in one distribution, I added a new trait, with_items_mixed, to the storage_locations factory. I contemplated updating the existing with_items trait to support more than one type of item. I decided against that, because I didn't want to alter everywhere that already used the with_items trait. I am curious to hear feedback about this decision and the new trait.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• In both the inventory_check_service_spec and distributions_controller_spec, I added automated tests for the bug. Before implementing a solution, I verified that the tests failed.
• I manually tested by following the "recreation" steps in Errors re inventory levels falling below a given level should be based on whole bank, not just current storage location. #4647.
• I tested the scenario with a minimum quantity error and a recommended quantity error by creating a distribution that distributes two different items. Due to the distribution, one item falls below the minimum quantity, and one item falls below the recommended quantity. I confirmed that both the minimum quantity and recommended quantity error will display in this scenario.

Screenshots

Error message for distribution that causes both minimum level and recommended level error

[cielf]

Hey @McEileen I took it out for a spin, and it seems to be working well. I do like the idea of putting the recommended level message on a new line, though. Please do that.

[McEileen]

Sure thing, @cielf. I made the requested change in commit c198965.

[cielf]

@dorner - can you give this a technical once-over? Thx.

[dorner]

Suggested change

	if inventory_check_result.minimum_alert.present? && inventory_check_result.recommended_alert.present?
	flash[:alert] = inventory_check_result.minimum_alert
	flash[:alert] += "\n"
	flash[:alert] += inventory_check_result.recommended_alert
	elsif inventory_check_result.minimum_alert.present?
	flash[:alert] = inventory_check_result.minimum_alert
	elsif inventory_check_result.recommended_alert.present?
	flash[:alert] = inventory_check_result.recommended_alert
	alerts = [inventory_check_result.minimum_alert, inventory_check_result.recommended_alert]
	merged_alert = alerts.compact.join("\n")
	flash[:alert] = merged_alert if merged_alert.present?

[McEileen]

This is a really lovely refactor. Thanks for suggesting it. See 6d00cbc.

[dorner]

This is only used in one place and is pretty complex. I'd much rather just have that one spec create this data rather than adding it to the factory.

[McEileen]

Sure thing. See 6d00cbc.

[dorner]

Thanks!