Problem/Motivation

There are three things that describe entities: \Drupal\Core\Entity\FieldableEntityInterface, bundle_entity_type and bundle_of for config.
At the same time fields are bound to content entities via bundles only.
The problem is a bundle itself, the comment bundle is a pita and nice example what is the actual usage of bundle.
The bundle is "entity_type__field_name" (a bit fragile) but this is a relation pointing to both entities.
So bundle_of does not work and I'd like to use bundle_entity_type as someItemInterface with carnality.
In perfect work bundle_of is a "back-reference" calculated field (bye bye nodeReferrer‎

Proposed resolution

Re-think bundle_of property to field. Allow bundle as calculated field.
Provide a kind of backReference field with core, maybe a views field could be used.
Write tests

Remaining tasks

tbd

User interface changes

tbd

API changes

tbd

Comments

Berdir’s picture

Berdir
Primary language German
Location Switzerland
CreditAttribution: Berdir commented

bundle_keys no longer exists, that was something else (it was, how to get the bundle from the bundle object, only used by field_ui, no longer needed and dropped).

+1 to merging bundle_of and bundle_entity_type, those were added at almost the same time in different issues.

Don't understand the rest, also comment bundle might become a real entity too now.

andypost’s picture

andypost
he/him
Primary language Russian
CreditAttribution: andypost commented
Related issues: +#2100343: Remove 'fieldable' key in entity definitions in favour of 'field_ui_base_route'

Version: 8.0.x-dev » 8.1.x-dev

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cilefen’s picture

cilefen CreditAttribution: cilefen commented

@andypost Could you update the issue summary and maybe re-categorize if this is still needed?

andypost’s picture

andypost
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Primary language Russian
CreditAttribution: andypost as a volunteer and at Skilld commented
Issue summary: View changes

Updated a bit

The issue mostly about bundle_of vs bundle_entity_type currently entities requires both to work properly

andypost’s picture

andypost
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Primary language Russian
CreditAttribution: andypost as a volunteer and at Skilld commented
Version: 8.1.x-dev » 8.2.x-dev
cilefen’s picture

cilefen CreditAttribution: cilefen commented
Category: Support request » Task

So is this more of a task?

Version: 8.2.x-dev » 8.3.x-dev

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geek-merlin’s picture

geek-merlin
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Primary language German
Location Freiburg, Germany
CreditAttribution: geek-merlin at MachbarMacher commented

I don't get it completely, but

> In perfect work bundle_of is a "back-reference" calculated field

lives in #2497649: Implement Entity Reference Backreferences

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claudiu.cristea’s picture

claudiu.cristea
Primary language Romanian
Location Arad 🇷🇴
CreditAttribution: claudiu.cristea as a volunteer and at Webikon commented

Also, it would be nice if a bundle entity type can be used on more than one content entity. I have this use-case: I want to create a new content entity type by extending taxonomy_term. But I still want to use vocabulary as bundle for the new entity type. Right now, as bundle_of being a string (not array), I cannot do that.

claudiu.cristea’s picture

claudiu.cristea
Primary language Romanian
Location Arad 🇷🇴
CreditAttribution: claudiu.cristea as a volunteer and at Webikon commented

I've created #3191814: Allow bundle entity to be used for more than one content entity for the idea from #18.

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