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[bioontology-support] Adding a group to an ontology

Michael Dorf mdorf at
Tue Dec 3 20:12:00 PST 2019

Hi Sina,

Thank you for contacting us. You were on the right track, it just requires a little more code. Group is an object rather than a string, and an ontology may belong to multiple groups. Here is the code for both creating a group and assigning ontology to it:

Create Group
gr ={acronym: "TESTGROUP", name: "Test Group", description: "Test Group Description", created: DateTime.parse("2019-12-03T09:26:30-08:00")})

gr = LinkedData::Models::Group.find("TESTGROUP").first

Assign Ontology to Group
ont = LinkedData::Models::Ontology.find("MYONT").first
groups =
groups << gr = groups

Let me know if this works for you.



Michael Dorf
Chief Software Architect
The National Center for Biomedical Ontology
Stanford Biomedical Informatics Research
mdorf at<mailto:mdorf at>
O: 650-723-0357
M: 650-995-4374

On Dec 3, 2019, at 4:27 PM, Madani, Sina <Sina.Madani at<mailto:Sina.Madani at>> wrote:


How can we add a “group” to an ontology in our local OntoPortal instance?
I tried below commands within ruby console but it was unsuccessful:

ontology  = LinkedData::Models::Ontology.find("MyOntology").first = ”MyGroup”

“MyGroup” group already exists in our BioPortal instance (created in ruby console)

I tried command at the end as well as but no success.


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bioontology-support at<mailto:bioontology-support at>

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