Bugs item #1515373, was opened at 2006-06-30 16:45
Message generated for change (Comment added) made by robmen
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Category: extensions
Group: v3.0
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: greggm (greggm)
Assigned to: Scott Kurtzeborn (scotk)
Summary: XmlFile has design issues with uninstall/element uniqueness
Initial Comment:
Suppose you have an XML File that you want to look
like this:
<A>
<B>
<C id="program1"/>
<C id="program2"/>
</B>
</A>
And it gets this way because you have two programs
that each make sure that 'B' exists, and then create
a new 'C'.
First, you would discover that Uninstall is broken.
The looping is wrong.
Then there is a design problem:
1. createElement always causes an element to be
created this is a problem in the case of node 'B'.
Both programs would create B when in reality, only
one should be creating B.
2. Uninstall of createElement always removes all
nodes. So when the first program is removed, all C's
go away.
The basic problem is that there needs to be a key to
describe the element which is created. This would be
used at install time to decide if the key actually
needs to get created, at repair time to find the node
to repair, and at uninstall time to remove what got
added.
----------------------------------------------------------------------
>Comment By: Rob Mensching (robmen)
Date: 2007-01-08 16:59
Message:
Logged In: YES
user_id=991639
Originator: NO
This was addressed by introducing XmlConfig to supercede XmlFile.
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