Many-to-Many relationships with metadata

[Maarten]

Hi everyone,

I'm hoping to create a many-to-many relationship between an entity and itself, with metadata added.

Example:

I have an entity: Organization.
An Organization can support another organization, or receive support from another organization.

When I create a many-to-many relationship on the entity Organization, with the same entity Organization, and call the left label: 'Provides support to' and the right label: 'Receives support from', then this works perfectly.

But now I would like to add two dates to this relationship: 1. when the support relationship started, and when it ended.
This is not possible in the many-to-many relationship.

In each organization I would like to have a two bottom panel showing:

Supports:
Organization name - from date - to date

Receives support from:
Organization name - from date - to date

Any ideas how to achieve this?

[yuri]

Hi Maarten,

I'd consider creating a separate entity with two many-to-one relationships.

While there's the ability to have relationship middle table fields, there's no support for date/time fields in the front-end. Hence, would require coding.

[rabii]

any chance in the future to have such ability (allow middle table to have more fields)? seems complex but would really enhance the user experience.

[espcrm]

Off-topic: But I wonder if this is the reason why I got this issue with my Event type entity:

https://forum.espocrm.com/forum/general/90853-v7-4-3-bug-error-and-discussion#post90900

Was working fine in v7.3 or earlier though. Only something change in v7.4 or possible bad upgrade that cause it.

[telecastg]

If you don't want to code, I believe that eymen-elkum extension will allow you to do that

[rabii]

This extension would help you do the trick https://www.eblasoft.com.tr/espocrm-...le-inline-form

[czcpf]

Eblasoft eymen-elkum
This extension isn't working with Espo 7.4.3 (at least for me). Every time I try to use a link multiple with Form enabled and add a new row to the inline list and attempt to save I receive the following error.

Can't relate with non-existing record.

I have tested it with all version of the extension 3.34.0, 3.33.2, 3.33.1, 3.32.0. All fail with the same error. So maybe something in Espo 7.4.* isn't compatible now? Please advise. Any help would be appreciated as I use this extension throughout my application and really don't want to have to downgrade Espo.

[espcrm]

I can only suggest testing it on the demo if they upgrade to v7.4 or send a Support request to them.

[czcpf]

I’ve done that and the @eymen-elkem was able to update the extension to support 7.3.* and 7.4.*. Great support for those guys!