Thank you, Tim, for your recommendation. Zhongping
On Monday, October 4, 2021 at 5:58:02 PM UTC-4 Tim Donohue wrote: > Hi Zhongping, > > I'd recommend just avoiding "." and "_" in metadata field names. > Obviously "." is not allowed as that's the usual field separator. But, "_" > is sometimes used as a secondary separator, especially when using Authority > control or similar (which DSpace 7 uses a little more than v6). > > Beyond those two, other characters should be safe. I just queried the > codebase quickly and I don't immediately see any other characters used as > separators. > > All that said, the safest of all options would be to not use any special > characters in metadata field names. So, you could also consider using > something like "local.conference.language" & have different values with > different "language" settings, as each metadata *value* does support a > language setting. > > Tim > ------------------------------ > *From:* [email protected] <[email protected]> on behalf > of Zhongping Yan <[email protected]> > *Sent:* Monday, October 4, 2021 10:44 AM > *To:* DSpace Technical Support <[email protected]> > *Subject:* [dspace-tech] Local Metadata Definition Syntax > > I registered some custom metadata fields in local-types.xml. Some of them > have character underscore '_' like this: > <dc-type> > <schema>local</schema> > *<element>conference_language</element>* > <qualifier>en</qualifier> > <scope_note></scope_note> > </dc-type> > > I used this element in a custom submission form: > <row> > <field> > <dc-schema>local</dc-schema> > *<dc-element>conference_language</dc-element>* > <dc-qualifier>en</dc-qualifier> > <label>Conference language</label> > <input-type>onebox</input-type> > <hint>Enter the conference language.</hint> > <required>You must enter the conference language.</required> > </field> > </row> > > DSpace throwed a exception when saving the form: > 2021-10-01 14:49:15,754 ERROR d18575a8-a1c9-4483-bb5d-f535cc6c6215 > 1c9425dd-cb7a-46fc-ab22-8672735aa3d1 > org.dspace.app.rest.submit.SubmissionService @ bad_dublin_core > *schema=local.conference.language.en.. > Metadata field does not exist*! > java.sql.SQLException: bad_dublin_core > schema=local.conference.language.en.. Metadata field does not exist! > at > org.dspace.content.ItemServiceImpl.addMetadata(ItemServiceImpl.java:1418) > ~[dspace-api-7.0.jar:7.0] > at org.dspace.content.ItemServiceImpl.addMetadata(ItemServiceImpl.java:71) > ~[dspace-api-7.0.jar:7.0] > at > org.dspace.app.rest.submit.factory.impl.ItemMetadataValueAddPatchOperation.replaceValue(ItemMetadataValueAddPatchOperation.java:183) > > ~[classes/:7.0] > at > org.dspace.app.rest.submit.factory.impl.ItemMetadataValueAddPatchOperation.add(ItemMetadataValueAddPatchOperation.java:100) > > ~[classes/:7.0] > at > org.dspace.app.rest.submit.factory.impl.AddPatchOperation.perform(AddPatchOperation.java:27) > > ~[classes/:7.0] > at > org.dspace.app.rest.submit.step.DescribeStep.doPatchProcessing(DescribeStep.java:138) > > ~[classes/:7.0] > at > org.dspace.app.rest.submit.SubmissionService.evaluatePatchToInprogressSubmission(SubmissionService.java:446) > > [classes/:7.0] > at > org.dspace.app.rest.repository.WorkspaceItemRestRepository.patch(WorkspaceItemRestRepository.java:212) > > [classes/:7.0] > at > org.dspace.app.rest.repository.WorkspaceItemRestRepository.patch(WorkspaceItemRestRepository.java:75) > > [classes/:7.0] > at > org.dspace.app.rest.repository.WorkspaceItemRestRepository$$FastClassBySpringCGLIB$$987ae76d.invoke(<generated>) > > [classes/:7.0] > > DSpace converted the character underscore in <dc-element> to character > period. > > Does DSpace restrict special characters in definition of customized > metadata elements in local-types.xml? > > Please suggest the specifications for defining customized metadata > elements. > > Thanks > > Zhongping > > -- > All messages to this mailing list should adhere to the Code of Conduct: > https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx > --- > You received this message because you are subscribed to the Google Groups > "DSpace Technical Support" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dspace-tech/3f8ee5e0-da7f-4c35-b78f-2fa22171471an%40googlegroups.com > > <https://groups.google.com/d/msgid/dspace-tech/3f8ee5e0-da7f-4c35-b78f-2fa22171471an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/cfe77e76-63fa-4f1e-9bf6-9f8b7c75ffb9n%40googlegroups.com.
