Curiously i got "Cannot resolve method 'required'. As below:
@Column(required = false, allowsNull = "true")
@Getter @Setter
@MemberOrder(sequence="1")
private String codigo;
2017-04-26 9:49 GMT-04:00, Dan Haywood <[email protected]>:
> Try @Column(required = false).
>
> The @Property annotation is an Isis one, not recognised by DataNucleus.
>
> On Wed, 26 Apr 2017, 12:25 L Eder, <[email protected]> wrote:
>
>> Hi Ahmed, i tried marking the column using this
>>
>> @Property(notPersisted=true)
>>
>> without effect.
>>
>> That was the closest property atribute i found in the documentation.
>>
>> Is that what you meant?
>> Eder
>>
>>
>> 2017-04-25 14:59 GMT-04:00, Ahmed Ragab <[email protected]>:
>> > I guess you need to mark the column as not required.
>> >
>> > Sorry for the short reply. Sent from phone.
>> >
>> > Best Regards,
>> > Ahmed
>> >
>> > On 25 Apr 2017, 15:43 +0200, L Eder <[email protected]>, wrote:
>> >> Hello members
>> >>
>> >> i have this use case, in that i need to extract some data from a
>> >> repository object of the own entity.
>> >>
>> >> Let me explain:
>> >> In the creation of a new entity Scenario, i have to select a past
>> >> scenario, via drop-down list of Scenario repository.
>> >>
>> >> Then i did this: i added a reference property to itself
>> >> Scenario,.java:
>> >> private Scenario pastScenario;
>> >>
>> >> However i am getting this IDE build time error:
>> >>
>> >> MySQLIntegrityConstraintViolationException: Cannot add or update a
>> >> child row: a foreign key constraint fails (`database`.`#sql-6c4_44c`,
>> >> CONSTRAINT `scenario_fk1` FOREIGN KEY (`pastscenario_id_oid`)
>> >> REFERENCES `scenario` (`id`))
>> >>
>> >> How could then correctly model this dependency case in Isis?
>> >>
>> >> Thanks for any help, Eder
>> >> -------------------------------------
>> >> Scenario.java
>> >> "
>> >> ....
>> >> @Column(allowsNull = "true")
>> >> @Property()
>> >> @Getter @Setter
>> >> private Scenario pastScenario;
>> >>
>> >> ...
>> >>
>> >> @Persistent(table="ScenarioStuffItems")
>> >> @Join(column="scenario_id")
>> >> @Element(column="stuffitem_id")
>> >> @Getter @Setter
>> >> @CollectionLayout(render = RenderType.EAGERLY, named="Stuff View")
>> >> private SortedSet<StuffItem> stuffItems = new TreeSet<StuffItem>();
>> >>
>> >> ....
>> >>
>> >> public Scenario importStuff() {
>> >>
>> >> final SortedSet<StuffItem> stuffItemsOnPastScenario =
>> >> this.getPastScenario().getStuffItems();
>> >>
>> >> for (StuffItem siOnPS: stuffItemsOnPastScenario){...extract some data
>> >> ...}
>> >>
>> >> ....
>> >>
>> >> }
>> >> "
>> >>
>> >> ScenarioMenu.java
>> >> "
>> >> @Action(
>> >> )
>> >> @MemberOrder(sequence = "3")
>> >> public Scenario create(
>> >> ...
>> >> @Parameter(optionality = Optionality.OPTIONAL)
>> >> @ParameterLayout(named="Past Scenario")
>> >> final Scenario pastScenario,
>> >> ....
>> >> "
>> >
>>
>
