[jira] [Updated] (OLINGO-251) Handling insert (OData POST of entity) with reverenced to an existing entity

["Stephan Klevenz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OLINGO-251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Klevenz updated OLINGO-251:
-----------------------------------

    Attachment: entity-writer-can-serialize-additional-links.patch

> Handling insert (OData POST of entity) with reverenced to an existing entity
> ----------------------------------------------------------------------------
>
>                 Key: OLINGO-251
>                 URL: https://issues.apache.org/jira/browse/OLINGO-251
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata2-core
>            Reporter: Stephan Klevenz
>            Assignee: Stephan Klevenz
>         Attachments: entity-writer-can-serialize-additional-links.patch
>
>
> Use case: I want to post a new Category entity by referring to an existing product.
> 1. POST/create call to http://services.odata.org/(S(egpbfjhhvili4slwaq1p2lvt))/V2/OData/OData.svc/Categories
> With the following payload in the rest client
> ATOM Payload for POST:
> <entry xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns="http://www.w3.org/2005/Atom" xml:base="http://services.odata.org/(S(lebb5euydx3m3xt5r2rqmou4))/V2/OData/OData.svc/">
> <id>http://services.odata.org/(S(lebb5euydx3m3xt5r2rqmou4))/V2/OData/OData.svc/Categories(1)</id>
> <title type="text">Beverages</title>
> <updated>2014-03-19T10:31:49Z</updated>
> <author>
> <name />
> </author>
> <link rel="edit" title="Category" href="Categories(1)" />
> <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Products" type="application/atom+xml;type=feed" title="Products" href="Products(0)" />
> <category term="ODataDemo.Category" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
> <content type="application/xml">
> <m:properties>
> <d:ID m:type="Edm.Int32">999</d:ID>
> <d:Name>Foodie</d:Name>
> </m:properties>
> </content>
> </entry>
> Point to be noted here is the link reference to Products(0).
> 2. I get http response as 201.
> 3. Now, GET/READ call to http://services.odata.org/(S(egpbfjhhvili4slwaq1p2lvt))/V2/OData/OData.svc/Categories(999)?$expand=Products gives response with Products (0) as inline property (ODataResponse.xml can be checked).
> I would like to know how to handle this when I try to achieve it through olingo library. What other information should be given to EntityProvider.writeEntry API.
> The signature of this API is
> ODataResponse org.apache.olingo.odata2.api.ep.EntityProvider.writeEntry(String contentType, EdmEntitySet entitySet, Map<String, Object> data, EntityProviderWriteProperties properties) throws EntityProviderException
> The information about the referenced entity [Products(0) in this case] cannot be part of data (map). Could you please help us understanding how to handle this.



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