[PythonReports-devel] [ pythonreports-Feature Requests-1846878 ] Group header replicated on each new page

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Feature Requests item #1846878, was opened at 2007-12-08 17:06
Message generated for change (Comment added) made by a1s
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Category: Format specifications
Group: None
Status: Open
>Resolution: None
Priority: 5
Private: No
Submitted By: Bruce Schultz (halfcat)
Assigned to: Nobody/Anonymous (nobody)
Summary: Group header replicated on each new page

Initial Comment:
Currently the group title element is only printed once, at the top of the group.  If the group is split across a page or column break, it should be possible to optionally reproduce the title on the new page (or column).

Maybe this could be done by allowing the <header> element to be used within a group.

Also it would be useful to be able to determine inside the header if it is the first or a subsequent group header, so that some indication of continuation can be printed. (eg a field to print continued using a 'printwhen' style to disable it on the first header, at the top of the group).


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>Comment By: alexander smishlajev (a1s)
Date: 2007-12-09 10:28

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i think the following could work:

each element in report template gets an optional attribute 'id'. all
non-empty ids must be unique across the template. (this is required by FR
1611603 also.)

new element type is added to all section elements: <link
target="whatever">, where the 'target' attribute refers to existing id of
another template element (section element or body element).

the 'link' element may contain one 'box' element, overriding the target
box, and a sequence of 'style' elements, combined with the target styles
(preceding them).  if link target is a section, it's eject specifications
are ignored.

PythonReports builder in it's constructor makes a private copy of the
template, and unrolls all links by copying their targets in place.  during
this operation we should check for autorecursion.

perhaps the Section class will need to be modified to allow embedded
sections.

patches are welcome.


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Comment By: Bruce Schultz (halfcat)
Date: 2007-12-08 18:34

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Ok, thanks. That solution works, and my only gripe now is that I have to
duplicate fields in the page header that are already in the group title,
but I can live with that.


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Comment By: alexander smishlajev (a1s)
Date: 2007-12-08 17:17

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page and column headings are meant to be fully described by the 'header'
elements.

you can use <group>_COUNT variable to conditionally skip parts of the
header in the middle of a group.

i am closing this request now.  if the above technique does not work for
you, please reopen the issue with example (data and template) demonstrating
your problem.


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