relationship | Chinese kinship calculator- family appellation | Data Visualization library

With the parent-child relationships data frame as below:

In VBA, if I understand correctly, emptiness means that a variant has not been initialized, i.e., it is the default value of a variant before an assignment.

There appear to be four ways to test if a variant is empty:

I have a list of data in a visualisation and I want to make it as accessible as possible. There are two lists next to each other.

The list items has two states. Multiple rows can be active or inactive. A single row could be selected.

Selecting something in one list, will show 'related' items as active, and inactive. See the simplified example below. The user has selected "A 2", which is linked to "B 1" and "B 4", so A2 is aria-selected but there's no aria-active or aria-inactive, I thought to use aria-disabled as demonstrated - BUT does this not indicate that it is not interactable? The user can still click on the disabled item to then select it.

Would it be better to do multiple aria-selected, and a single aria-current=true on the single 'selected' item? Would it be odd that if the user hasn't yet made a selection and everything is 'active', every item will be aria-selected=true?

How can I define a Doctrine property in a parent class and override the association in a class which extends the parent class? When using annotation, this was implemented by using AssociationOverride, however, I don't think they are available when using PHP 8 attributes

Why I want to:

I have a class AbstractTenantEntity whose purpose is to restrict access to data to a given Tenant (i.e. account, owner, etc) that owns the data, and any entity which extends this class will have tenant_id inserted into the database when created and all other requests will add the tenant_id to the WHERE clause. Tenant typically does not have collections of the various entities which extend AbstractTenantEntity, but a few do. When using annotations, I handled it by applying Doctrine's AssociationOverride annotation to the extended classes which should have a collection in Tenant, but I don't know how to accomplish this when using PHP 8 attributes?

My attempt described below was unsuccessful as I incorrectly thought that the annotation class would magically work with attributes if modified appropriately, but now I see other code must be able to apply the appropriate logic based on the attributes. As such, I abandoned this approach and just made the properties protected and duplicated them in the concrete class.

My attempt:

Tenant entity

Background:

I am building an editor extension for Unity (although this question is not strictly unity related). The user can select a binary operation from a dropdown and the operation is performed on the inputs, as seen in the diagram:

The code is taken from a tutorial, and uses an enum here in combination with a switch statement here to achieve the desired behavior.

This next image demonstrates the relationship between the code and the behavior in the graph UI:

Problem

Based on my prior experience programming in other languages, and my desire to allow for user-extensible operations that don't require users to edit a switch statement in the core code, I would LIKE the resulting code to look something like this (invalid) C# code:

I currently am doing a raw sql query however this is causing issues with relationships and model boot methods.

Is it possible to do the following SQL query but with laravel eloquent models by relationship? Note all db tables have FK's defined, and relationships either HasOne or HasMany relationships.

I need an ArgumentParser, with a conflict handling scheme, that resolves some registered set of duplicate arguments, but raises on all other arguments.

My initial approach (see also the code example at the bottom) was to subclass ArgumentParser, add a _handle_conflict_custom method, and then instantiate the subclass with ArgumentParser(conflict_handler='custom'), thinking that the _get_handler method would pick it up.

This raises an error, because the ArgumentParser inherits from _ActionsContainer, which provides the _get_handler and the _handle_conflict_{strategy} methods, and then internally instantiates an _ArgumentGroup (that also inherits from _ActionsContainer), which in turn doesn't know about the newly defined method on ArgumentParser and thus fails to get the custom handler.

Overriding the _get_handler method is not feasible for the same reasons.

I have created a (rudimentary) class diagram illustrating the relationships, and therefore hopefully the problem in subclassing ArgumentParser to achieve what I want.

I (think, that I) need this, because I have two scripts, that handle distinct parts of a workflow, and I would like to be able to use those separately as scripts, but also have one script, that imports the methods of both of these scripts, and does everything in one go.

This script should support all the options of the two individual scripts, but I don't want to duplicate the (extensive) argument definitions, so that I would have to make changes in multiple places.
This is easily solved by importing the ArgumentParsers of the (part) scripts and using them as parents, like so combined_parser = ArgumentParser(parents=[arg_parser1, arg_parser2]).

In the scripts I have duplicate options, e.g. for the work directory, so I need to resolve those conflicts.
This could also be done, with conflict_handler='resolve'.

But because there are a lot of possible arguments (which is not up to our team, because we have to maintain compatibility), I also want the script to raise an error if something gets defined that causes a conflict, but hasn't been explicitly allowed to do so, instead of quietly overriding the other flag, potentially causing unwanted behavior.

Other suggestions to achieve these goals (keeping both scripts separate, enabling use of one script that wraps both, avoiding code duplication and raising on unexpected duplicates) are welcome.

I read the official documentation but still don't get it https://docs.mongodb.com/manual/tutorial/model-embedded-one-to-one-relationships-between-documents/ Explain me pls, how to create in my example. I have nest.js app with mongoose. Two schemas (2 tables in db):

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I'm working trough the book Haskell in depth and I noticed following code example: