ah, so you are describing a babel bug rather than an exhibit bug.
for that it might be necessary to invoke a higher power (davidh).

One quick hack you could do is as follows:
for your spreadsheet, rename the current "label" column as "intendedLabel"
create a new "label" column that you fill with _distinct_ values (eg, 
increasing integers).
after your json is generated, do a global replace in it of "label" by
"fakeLabel" and then replace "intendedLabel" with "label"

Because babel is presumably using the label field to merge items, your
use of distinct labels will prevent the merge.  But after you rename the
properties, exhibit will carry out the correct merge on the client side.


mowi wrote:
> Hi David,
>
> Thanks for making a quick example. I understand how my JSON file
> should look like but I do not make my JSON by hand, that would be too
> much work..
> I generate my JSON file with babel from an excel sheet.
> I cannot figure out how I can get babel to generate a file like
> your .js file
>
> my excel file looks like this:
> http://spreadsheets.google.com/pub?key=pEBZe9K5tabOdZXuL1uEoRQ
>
> and the JSON that is generated by Babel like this.
> http://www.moniquedewilt.com/test/manytomanytest.js
>
> I have tried making to seperate JSONs, one with the items and one with
> the connections but that did not work either. Babel only makes one
> "record" for each item and only one value in each field. when the item
> appears multiple times in excel with the same field, babel only uses
> the last value for that field.
> Any clues how to get Babel to do this?
>
> On Feb 26, 4:21 pm, David Karger <[email protected]> wrote:
>   
>> Take a look at
>>  http://people.csail.mit.edu/karger/Exhibit/example.html
>> and you'll see that "thing" has three children first, second, and
>> third.  If you look at the data file
>>  http://people.csail.mit.edu/karger/Exhibit/data.js
>> you will see that those children were introduced using two separate
>> mentions of "thing"
>>
>> mowiwrote:
>>     
>>> Hi David,
>>>       
>>> I tried it like you said and made a third excel sheet for the
>>> connections.  The authors are now connected to the articles but
>>> instead of multiple authors only the last author got connected to the
>>> article in the JSON file. I used Babel to convert the excel file to
>>> JSON. I have also tried to convert to JSONP but that didn`t matter.
>>> Any ideas?
>>>       
>>> On Feb 19, 2:52 pm, David Karger <[email protected]> wrote:
>>>       
>>>> It's ok; you can use author and article as ID even if they appear
>>>> multiple times.  First do the obvious thing, creating items for the
>>>> exhibit corresponding to the authors and articles (using author name as
>>>> id for the authors, and article title as id for the articles):
>>>> {type: "Author", id: "name of author", affiliation: "affiliation of
>>>> author"...}
>>>> {type: "Article", id: "title of article", year: "year of publication", 
>>>> ....}
>>>>         
>>>> Finally, take your relationship table.  Suppose it has a row (authorX,
>>>> articleY)
>>>> add another fragment of json to the collection of "items":
>>>> {id: "articleY", author: "authorX"}
>>>> Do this for every row.  This will accomplish what you want.
>>>>         
>>>> To understand what is going on, note how exhibit will interpret these
>>>> final fragments from the relationship table.  It will say "ok, this
>>>> person is specifying an item whose id is articleY and has an author
>>>> property with value authorX. But I already know about an item whose id
>>>> is articleY---namely, the one that was defined at the beginning of type
>>>> "Article".  So, I'm not going to create a new item with id articleY.
>>>> Instead, I will _merge_ the attributes of the new item (in particular,
>>>> the author relationship to authorX) into the already existing item.  And
>>>> if that item already has a value of the author property, because I
>>>> already saw an author of that article, then I will _add_ authorX as an
>>>> additional value for the now-multivalued author property on articleX."
>>>>         
>>>> mowiwrote:
>>>>         
>>>>> hi,
>>>>> I have some data with many to many relationships just like the
>>>>> articles and authors in the example  website about ISWC 2007 + ASWC
>>>>> 2007.http://people.csail.mit.edu/dfhuynh/projects/graph-based-exhibit/grap...
>>>>>           
>>>>> there it is solved by putting multiple persons in the "author" field.
>>>>>           
>>>>> I have a problem getting multiple values in one  field because the
>>>>> data is from acces 2003. I have got one table with articles, one with
>>>>> authors and one with relationships. The relationship list has three
>>>>> columns:id (which I do not really use), author and article. Can i also
>>>>> do it like that in exhibit? how can I do that?
>>>>> In the example you use ".author.affiliation" to get a value from the
>>>>> author list in the article overview. Author is an id there. In my
>>>>> relationship list both author and article cannot be id because they
>>>>> appear multiple times.
>>>>>           
> >
>   

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