Structurizr only shows the first relationship between Components

[cmooney]

Expected

I have created a workspace and model similar to the following. I expect to see multiple relationships between components in different containers and by proxy their containers depending on the level of the view.

`workspace {
model {
!identifiers hierarchical

    user = person "User"

    softwareSystem "My System" {
        authoringUI = container "Authoring" "Rich Multimedia Content Editor and Template Creator" {
            tags "ClientApplication"

            authoringClient = component "Authoring Client"
        }
        
        authoringService = container "Authoring Service" "Supports persistence and retrieval operations for content and multimedia" {
            authoringAPI = component "Authoring API" "Implements the Authoring Contract" {
            }
        }

        user -> authoringUI "Authors content using"

        authoringUI.authoringClient -> authoringService.authoringAPI "Gets templates from"
        authoringUI.authoringClient -> authoringService.authoringAPI "Persists templates to"
        authoringUI.authoringClient -> authoringService.authoringAPI "Gets content from"
        authoringUI.authoringClient -> authoringService.authoringAPI "Persists content to"
        authoringUI.authoringClient -> authoringService.authoringAPI "Gets content links from"

    }
}
views {

container mySystem {
include *
autoLayout tb
}

component mySystem.authoringService "authoring-service" {
include *
autoLayout tb
}

}

}`

Actual

When I view this model using Structurizr, only the first of the multiple relationships that should show up between components and containers displays. If I, however, make multiple relationships between the containers, as follows, that will display multiple relationships correctly.

`workspace {
model {
!identifiers hierarchical

    user = person "User"

    mySystem = softwareSystem "My System" {
        authoringUI = container "Authoring" "Rich Multimedia Content Editor and Template Creator" {
            tags "ClientApplication"

            authoringClient = component "Authoring Client"
        }
        
        authoringService = container "Authoring Service" "Supports persistence and retrieval operations for content and multimedia" {
            authoringAPI = component "Authoring API" "Implements the Authoring Contract" {
            }
        }

        user -> authoringUI "Authors content using"

        authoringUI -> authoringService "Gets templates from"
        authoringUI -> authoringService "Persists templates to"
        authoringUI -> authoringService "Gets content from"
        authoringUI -> authoringService "Persists content to"
        authoringUI -> authoringService "Gets content links from"

    }
}
views {

container mySystem {
include *
autoLayout tb
}

component mySystem.authoringService "authoring-service" {
include *
autoLayout tb
}

}

}`

Steps to reproduce

Please see attached models. I have included one with only container relationships that displays the multiple relationships and another with components that does not display the multiple relationships to show the difference.

Version/build information

Using latest docker version - structurizr/lite:latest, which is 3 months old.

Severity

Major

Priority

Low (I'm willing to make a pull request - please confirm approach first)

More information

No response

[simonbrowndotje]

I imagine you're seeing the implied relationships feature.

[cmooney]

Yes, I am counting on that feature showing all five relationships that have been defined between the components in the separate containers, but only the first one is displayed. In the attached images (sorry, I had to redact some elements) you can hopefully see this issue in the circled areas:

Was this a design decision to only show the first one?

[simonbrowndotje]

Was this a design decision to only show the first one?

Yes - it prevents the model/diagrams from becoming cluttered. As it says in the docs, you can change this behaviour ... just add the following into your workspace definition:

    !impliedRelationships com.structurizr.model.CreateImpliedRelationshipsUnlessSameRelationshipExistsStrategy

See https://docs.structurizr.com/java/implied-relationships#createimpliedrelationshipsunlesssamerelationshipexistsstrategy for an explanation of how this works.

[cmooney]

Oh! I see! Thank you so much for the help! I'm very new to Structurizr and the DSL so still learning the ropes. Thank you so much for helping me out and for creating this incredibly useful tool!