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https://issues.apache.org/jira/browse/OLINGO-1243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17125802#comment-17125802
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Mahdi Ansari commented on OLINGO-1243:
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Hi there, could you find a solution for this issue?
> Updating foreign key properties has no effect
> ---------------------------------------------
>
> Key: OLINGO-1243
> URL: https://issues.apache.org/jira/browse/OLINGO-1243
> Project: Olingo
> Issue Type: Bug
> Affects Versions: V2 2.0.8, V2 2.0.10
> Environment: Java EE 7 (TomEE) Server, Java 8, EclipseLInk 2.5.2
> Reporter: Nikolay Grechanov
> Priority: Major
>
> In my JPA model I have Child entity which has Parent property:
> {code:java}
> @ManyToOne(fetch = EAGER, optional = false)
> @BatchFetch(JOIN)
> @NotNull
> @JoinColumn(name = "PARENT_ID", nullable = false)
> private Parent parent;{code}
> $metadata contains Parent property as well as referential constraint for
> association:
>
> {code:java}
> ...
> <EntityType Name="Child">
> <Key>
> <PropertyRef Name="Id"/>
> </Key>
> <Property Name="Parent" Type="Edm.Int64" Nullable="false"/>
> <NavigationProperty Name="ParentDetails"
> Relationship="myProject.Child_Parent_Many_One0" FromRole="Child"
> ToRole="Parent"/>
> </EntityType>
> ...
> <Association Name="Child_Parent_Many_One0"> <End Type="myProject.Child"
> Multiplicity="*" Role="Child"/> <End Type="myProject.Parent"
> Multiplicity="1" Role="Parent"/> <ReferentialConstraint>
> <Principal Role="Parent">
> <PropertyRef Name="Id"/>
> </Principal>
> <Dependent Role="Child">
> <PropertyRef Name="Parent"/>
> </Dependent>
> </ReferentialConstraint>
> </Association>
> ...{code}
> Imagine I have Child with id = 1 and Parent with id = 2
> If I want to change Child's Parent from 2 to 3 I call:
> {code:java}
> PUT /Children(1) {"Parent":"3"}{code}
> As the result, I get HTTP 204 No Content, but the request has absolutely no
> effect on Child entity: if I GET it again the Parent property will have old
> value 2 and the Navigation property will point to the old Parent as well.
> For the time being I make the following call to edit Navigation properties:
> {code:java}
> PUT /Children(1) {"ParentDetails":{"__deferred":{
> "uri":"/Parents(3L)"}}}{code}
> But I would like to be able to do the same by updating Parent property: it's
> much easier and it is also the only way supported by SAPUI5 library that I
> use in UI development.
>
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