Nikolay Grechanov created OLINGO-1243:
-----------------------------------------
Summary: 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 2.0.10, V2 2.0.8
Environment: Java EE 7 (TomEE) Server, Java 8, EclipseLInk 2.5.2
Reporter: Nikolay Grechanov
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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