Forum Discussion

Former_Member's avatar
Former_Member
Ideator I
7 years ago

relationshipType api rest

Hi community, I'm trying to get the list of all the relationshipTypes of an ItemType thanks to the REST API. Is this possible ? Thanks for any help ! Arnaud
ItemTypes
Relationships
asebastian's avatar
asebastian
New Member
7 years ago

Hi Arnaud,

You should be able to do this by querying the "ItemType" ItemType, and returning the "relationshipType" relationship. More in depth information about how to create queries like this can be found in this blog post.

AJ

Former_Member's avatar
Former_Member
Ideator I
7 years ago

Hi Sebastian,

Thank you for the answer, I'm already using this blog but I didn't find the answer... What is the url used to perform this task ? I already tried plenty of things.

I should start with : localhost/.../

But then how can I add  "relationshipType" to get the list I need ? 

I often get the error message "notImplemented". 

Best regards

  • cogres's avatar
    cogres
    Ideator I
    7 years ago

    Hi Arnaud,

    your request should look something like this

    GET    <URI for your Aras Installation>/server/odata/ItemType('<ID for the ItemType you want to query>')/RelationshipType

    You will need to replace <URI for your Aras Installation> in the URI with the path for your Aras installation (like http://localhost/InnovatorServer) and the given <ID for the ItemType you want to query> with the ID of the ItemType you want to know the RelationshipTypes for.

    Is this what you need?

    • Former_Member's avatar
      Former_Member
      Ideator I
      7 years ago

      Hi cogres,

      Probably, but it returns "value": [].

      I have an url like this one :

      Airbus_cabin_configuration('AB0358B1D3774D77AC507CA1F857F42E')/RelationshipType

      It should return Cabin_seat, Cabin_Lavatory ... that are saved in "RelationshipTypes" in the ItemType, but it doesn't. I don't understand what is wrong.

      Best regards.

      • cogres's avatar
        cogres
        Ideator I
        7 years ago

        Hi Arnaud,

        The "/RelationshipType" part of the URI means "give me all relationships of the Item specified before that are called 'RelationshipType'". Your custom ItemType "Airbus_cabin_configuration" does not have any Relationships with the name "RelationshipType". Its relationships are called "Cabin_seat, Cabin_Lavatory", etc.
        I assumed you wanted to know the names of RelationshipTypes on a given ItemType, not the actual relationship instances on instances of a particular custom ItemType. If you send the request ending in


              ItemType('ID of the ItemType Airbus_cabin_configuration')/RelationshipType

        this is exactly what you will get. A collection of "value"-nodes that include the names of your RelationshipTypes (Cabin_seat, Cabin_Lavatory, etc).

        If you need the actual instances of these RelationshipTypes on a given Airbus_Cabin_configuration, you will have to combine the result of the above query to get the names of the relationships and then a request like

        Airbus_cabin_configuration('AB0358B1D3774D77AC507CA1F857F42E')/Cabin_seat

        to fetch the relationship instances.

        Is this what you mean?

        Cheers,

        C