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https://issues.apache.org/jira/browse/OFBIZ-628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12465343
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Guido Amarilla commented on OFBIZ-628:
--------------------------------------

I can´t find the issue associated to 494515, so I comment this here:

(excuse me if I am not clear, because I have a very limited english vocabulary 
and knowledge of the entities)

In EditProduct screen, when selecting a product´s Primary Category I am allowed 
to select a category to which this product is not a member. If I´m not wrong 
(and possibly I am) you shouldn´t be allowed to choose a primary category if 
the product is not member of that category. It looks like a check is missing 
here.
I think that the correct behaviour would be to add the product as a member of 
the selected primary category if it is not currently a member.

This patch was meant for installations with a great number of categories, but I 
wonder how many categories can a single product be member of simultaneously? If 
this number is small in every installation I don´t see a problem in keeping the 
dropdown for the Primary Category selection. In this case it would be faster 
with a drop down and won't create any overhead in the client.



> Change ProductCategory dropdowns to lookup windows
> --------------------------------------------------
>
>                 Key: OFBIZ-628
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-628
>             Project: Apache OFBiz (The Open for Business Project)
>          Issue Type: Improvement
>          Components: product
>    Affects Versions: SVN trunk
>         Environment: All
>            Reporter: Walter Vaughan
>         Assigned To: Si Chen
>             Fix For: SVN trunk
>
>         Attachments: patch_category_lookup, patch_category_lookup2
>
>
> There are several places in ofBiz where a drop down window is used to select 
> a ProductCategory. However, in installations with a significant number of 
> categories, the overhead of a sequential scan query causes severe slowdowns 
> in the performance of  ofBiz, and overloads the browser client.

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