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
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

      • Former_Member's avatar
        Former_Member
        Ideator I
        7 years ago

        Indeed, I want to know the names of all the RelationshipTypes on a given ItemType.

        I totally understood how to fetch the instances of the RelationshipTypes on a given configuration, I just can't get the list of names of those RelationshipTypes.

        To be clear, I want to send a query to my Airbus configuration and get a reponse like this one :

        "value" : [

        Cabin_Seat;

        Cabin_Lavatory;

        Cabin_Overhead_locker;

        ...

        ]

        I tried many urls but I wasn't able to get something like this.

        The query  ItemType('ID of the ItemType Airbus_cabin_configuration')/RelationshipType sends me "value":[]

        Maybe there is something wrong in my database ?

        Cheers,