Hi Steve,
I don't see an efficient algorithm that could do such matches. Finding
all resources with a given local name would require walking through all
subjects in the graph. And we would have to do this for each row in the
spreadsheet. You'll end up with combinatorial explosion and many unhappy
users if we offer this feature. However, directly matching certain
values would be much easier, because that's a simple ?s ?p $value look-up.
Holger
On 11/19/2020 10:36 AM, Steve Ray wrote:
I started to try importing some classes and data from a spreadsheet
recently, and used Irene's very helpful walk-through from the October
User Group meeting
(https://www.topquadrant.com/project/topquadrant-user-group-meeting/
<https://www.topquadrant.com/project/topquadrant-user-group-meeting/>).
Things went fairly well after I fixed up the header rows, except for
one thing:
My spreadsheet contained the first column which corresponded to new
instance URIs, which I was able to import (Class A). However, another
column contained the localnames for instances of another class (Class
B). I was able to tell the import pattern that it was a relation, but
the wizard only offers matching by the properties of the class (Class
B), such as the label, etc., but not by the localname. I was forced to
temporarily create a throwaway property that contained the localname,
for each of the Class B instances, so that the wizard could match on
that property.
It would sure be helpful if the localname was also offered as a field
to match on. What do you think?
Steve
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