relationshipType api rest

RE: relationshipType api rest

Former Member — Mon, 29 Jul 2019 13:25:09 GMT

Oh I see how it works now. Thank you very much.

Actually, I hoped I could retrieve directly the RelationshipType of a particular ItemType.

I have to query :

localhost/.../RelationshipType

And then get the relationshipTypes I need...

RE: relationshipType api rest

AJ Sebastian — Mon, 29 Jul 2019 13:13:03 GMT

Hi Arnaud,

I see the confusion now. You're querying the "airbus_cabin" ItemType. What you actually want to do is query the "ItemType" ItemType. The airbus_cabin itemtype has no relationship titled relationshipType, and therefore you're getting this empty array. It's also important to note that the ID you need to pass in is the ID of the airbus_cabin itemtype.

Also appending ?$select=name to the end of that query will make it easier to parse.

RE: relationshipType api rest

Former Member — Mon, 29 Jul 2019 11:14:16 GMT

And here is the request :

Everything looks right to me...

RE: relationshipType api rest

Former Member — Mon, 29 Jul 2019 06:57:51 GMT

RE: relationshipType api rest

Christopher Gillis — Fri, 26 Jul 2019 15:06:28 GMT

Just to confirm, you can see the relationships on the ItemType when you view them directly through the client, correct?

RE: relationshipType api rest

Former Member — Fri, 26 Jul 2019 14:23:38 GMT

I have the same configuration as yours for the RelationshipType...

I also tried to query the RelationshipTypes of the default itemType "Part" but I also get an empty array.

🙁

RE: relationshipType api rest

Christopher Gillis — Fri, 26 Jul 2019 13:40:03 GMT

Hello,

My guess would be that this is related to the permissions, but I can't say I've seen this issue before. Could you check the Permissions on the RelationshipType ItemType to see if it has been changed in your system? The Permissions in a default environment look like below where World should have Get access.

Chris

RE: relationshipType api rest

Former Member — Fri, 26 Jul 2019 07:19:39 GMT

Hi Christopher,

I tried your url with User, it returns again an empty array. I'm working with the admin session.

Something is wrong wuth the permissions I guess ?

Cheers

RE: relationshipType api rest

Christopher Gillis — Thu, 25 Jul 2019 15:20:36 GMT

Hi there,

Could you check the ItemType in the client and confirm that you can see the relationships you're expecting under the RelationshipType tab? Typically, an empty array would only be returned if no items were found or if you did not have permission to see the item.

If you can see the relationships in the client, could you try querying the REST API for the relationships of a standard Aras ItemType like User to make sure that you have permissions to see Relationships with the user you're using for the REST call? You can do that with the URL below.

/server/odata/ItemType('45E899CD2859442982EB22BB2DF683E5')/RelationshipType?$select=name

You should expect to see three items returned form the query above: Alias, Old Password, and ReadPriority.

Chris

RE: relationshipType api rest

Former Member — Thu, 25 Jul 2019 14:19:53 GMT

I tried what you told me to, but it still doesn't work. I can only retrieve an empty array. Everything works except this command. I don't understand why.

RE: relationshipType api rest

cogres — Thu, 25 Jul 2019 08:53:57 GMT

Hmm, that is odd. Could you try that query with different ItemTypes? Preferably core ItemTypes? For example, search for the ItemType with the name "ItemType", right-click -> Properties to copy the ID of it and then insert it in the request above, and see if that returns the expected "value" nodes.

You can also try the request:

server/odata/RelationshipType?$filter=source_id eq 'ID of the ItemType Airbus_cabin_configuration'

and see what that returns.

RE: relationshipType api rest

Former Member — Thu, 25 Jul 2019 08:45:17 GMT

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,

RE: relationshipType api rest

cogres — Thu, 25 Jul 2019 08:17:40 GMT

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,

RE: relationshipType api rest

Former Member — Thu, 25 Jul 2019 07:15:58 GMT

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.

RE: relationshipType api rest

cogres — Thu, 25 Jul 2019 07:01:34 GMT

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?

RE: relationshipType api rest

Former Member — Wed, 24 Jul 2019 15:06:47 GMT

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

RE: relationshipType api rest

AJ Sebastian — Wed, 24 Jul 2019 14:12:04 GMT

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.