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https://issues.apache.org/jira/browse/OFBIZ-12037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17206307#comment-17206307
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ddev commented on OFBIZ-12037:
------------------------------

 

How would we handle erasing "WEIGHT_MEASURE"?  

 

If we erasing the "weight measure" type and the related Uom's from the seed 
data, and someone already wrote a ofbiz application that did a "where UomType = 
'WEIGHT_MEASURE'" kind of thing, it would break that for them when they went to 
set up their new installation.

 

We could tell those people who were upgrading to use the new seed data, but 
then  they would still have the old data laying around.

 

What's the expected way to handle something like this?

 

> Bug is seed data for UomType / Uom
> ----------------------------------
>
>                 Key: OFBIZ-12037
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-12037
>             Project: OFBiz
>          Issue Type: Bug
>          Components: datamodel
>            Reporter: ddev
>            Priority: Major
>
> I found a problem in the seed data.  The kilogram, is under the wrong measure 
> type.  The kilogram is a unit of mass, not a unit of weight. 
> Explanation: The weight of a product/object changes with altitude, the mass 
> does not.  (example: If you want to lower your mass, then you need to diet, 
> but if you just want to weigh less, then just live on mars.)
> (These are easy to confuse because of a naming collision:  there is a unit of 
> mass called the pound and also unit of force called the pound)
> Basically, we should change:
> <UomType description="Weight" hasTable="N" uomTypeId="WEIGHT_MEASURE"/>
>  To be:
>  <UomType description="Mass" hasTable="N" uomTypeId="MASS_MEASURE"/>
>  <UomType description="Force" hasTable="N" uomTypeId="FORCE_MEASURE"/>
>  
> With seperate Uoms under each UomType
>  



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