Multiple group levels on column are broken
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Key: DISPL-320
URL: http://jira.codehaus.org/browse/DISPL-320
Project: DisplayTag
Type: Bug
Versions: 1.1
Reporter: Jeff Sheets
We have recently upgraded from 1.0 to 1.1 version of displaytag. Previously we
could define column1 with group="1" and column2 with group="2" so that our
grouping would have levels. When column1 changed groupings it would cause
column2 to change, column2 could have multiple groupings for each group in
column1.
This is better explained in the displaytag reference doc for group:
"The grouping level (starting at 1 and incrementing) of this column (indicates
if successive contain the same values, then they should not be displayed). The
level indicates that if a lower level no longer matches, then the matching for
this higher level should start over as well. If this attribute is not included,
then no grouping is performed."
This behavior is broken in 1.1, as the levels are not respected. col2 is
grouping even when col1 is not. Here is an attempt at an example:
Correct 1.0 behavior:
Col1 (group="1") Col2 (group="2")
Omaha 50
Omaha (50 here is hidden by grouping)
Omaha 23
Omaha 22
Chicago 22 (22 here is shown because col1 changed
values)
Chicago (22 here is hidden by grouping)
Chicago 42
Chicago 43
Incorrect behavior occurring in displaytag 1.1:
Col1 (group="1") Col2 (group="2")
Omaha 50
Omaha (50 here is hidden by grouping)
Omaha 23
Omaha 22
Chicago (22 here is incorrectly hidden even
though col1 changed values)
Chicago (22 here is hidden by grouping)
Chicago 42
Chicago 43
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