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https://issues.apache.org/jira/browse/OFBIZ-12178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17313728#comment-17313728
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ASF subversion and git services commented on OFBIZ-12178:
---------------------------------------------------------

Commit e786da42e852fbf4723dc0b9680e432ea24b61a8 in ofbiz-framework's branch 
refs/heads/trunk from bjugl
[ https://gitbox.apache.org/repos/asf?p=ofbiz-framework.git;h=e786da4 ]

Fixed: Induction from DB does not represent relations properly. (#290) 
(OFBIZ-12178)

As encountered in OFBIZ-6510, the ModelInduceFromDb does currently not include 
entity relations and foreign key constraints. Since they are an important part 
of the database model, we should fix that.

I could track down the problem to an incomplete invocation of the ModelEntity 
through the constructor used in the DatabaseUtil.induceModelFromDb() Methods. 
This constructor does not initialize the Relations.

Problem is, that the ModelEntity initialized through the "DB Names Constructor" 
does not cover references in its current state at all.

While working on an implementation I realized, that the API is not very 
congruent in this regards. I would expect that I could initialize 
ModelRelations the same way ModelFields are initialized in this context:

The create() Method takes a ModelEntity, DatabaseUtil.ColumnCheckInfo 
(respectively a DatabaseUtil.ReferenceCheckInfo) and a ModelFieldTypeReader 
(that could be left out for references) and creates ModelField (ModelRelation) 
objects that are added to the ModelEntity.

But that is not the case at the moment. On one hand not all fields that would 
be necessary are covered in the DatabaseUtil.ReferenceCheckInfo Objects (e.g. 
"type" is missing), on the other the object is missing public getters to make 
the values available in the first place.

Thanks a bunch Benjamin, nice add !


> ModelInduceFromDb does not show entity relations.
> -------------------------------------------------
>
>                 Key: OFBIZ-12178
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-12178
>             Project: OFBiz
>          Issue Type: Bug
>          Components: framework
>    Affects Versions: Release Branch 18.12, Trunk
>            Reporter: Benjamin Jugl
>            Assignee: Benjamin Jugl
>            Priority: Minor
>
> As encountered in OFBIZ-6510, the ModelInduceFromDb does currently not 
> include entity relations and foreign key constraints. Since they are an 
> important part of the database model, we should fix that.
> I could track down the problem to an incomplete invocation of the ModelEntity 
> through the constructor used in the DatabaseUtil.induceModelFromDb() Methods. 
> This constructor does not initialize the Relations.



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