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https://issues.apache.org/jira/browse/OFBIZ-6427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573074#comment-14573074
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Christian Carlow commented on OFBIZ-6427:
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I just encountered OFBIZ-6310 missing from my patch which is already part of
the trunk so I will sync with it before submitting anymore updated patches.
> Implement FindService record grouping/summarization functionality
> -----------------------------------------------------------------
>
> Key: OFBIZ-6427
> URL: https://issues.apache.org/jira/browse/OFBIZ-6427
> Project: OFBiz
> Issue Type: Improvement
> Components: framework
> Affects Versions: Trunk
> Reporter: Christian Carlow
> Attachments: OFBIZ-6427-testforms.txt, OFBIZ-6427.patch,
> Screenshot1.png, Screenshot2.png, Screenshot3.png
>
>
> Just as sortSeq and sortDir will be added to find fields like ignoreCase is
> available, groupBy check box would also enhance user query capabilities.
> FindService would have to be extended to process the list and create
> group/summary records.
> For example, if a grid/form lists customer orders and the user wants to
> determine the total quantity and price of products ordered between a date
> range, then check marking the groupBy for productId would insert a grouping
> record before the details containing totals.
> This issue is primarily meant to handle reports for which pagination isn't
> used because all records are displayed. For these reports queries, group
> totals can simply be calculated by looping each detail record. But if
> pagination is used, the method of calculating totals for grouping records
> becomes more complicated because if detail records exist outside of the
> current page but are part of a group being summarized then they will be
> excluded from the group total unless implemented some other way.
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