<
From version < 3.11 >
edited by Guillaume Delhumeau
on 2016/02/25
To version < 3.12 >
edited by Guillaume Delhumeau
on 2016/02/25
>
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52 52  
53 53  = Principle =
54 54  
55 -After having upgrade the XWiki instance to a recent version (7.4+), you should convert your existing pages to nested ones. This will permit:
56 -* (1) to keep the existing hierarchy between pages, made with the parent/child relationship, which will be lost otherwise.
57 -* (2) give you the opportunity to create pages under any old page, as you could under new pages.
55 +The idea is not convert existing pages (which most of them are terminal) to ##WebHome## pages under their own space. We call this "convert terminal pages to nested pages". This allows you to create sub-pages under any converted pages, which is impossible while they were terminal.
58 58  
59 -To perform this conversion, we have developed an application called [[Nested Pages Migrator Application>>extensions:Extension.Nested Pages Migrator Application]]. Its principle is to move all existing pages under their parent, so that the old parent/child relationship become physically represented by the Nested Pages hierarchy.
57 +But that would be a shame to lose the parent/child relationships that the user have created between its pages. The user might want to preserve its hierarchies. She might still want to have ##FrankCapra## as parent of ##ItsAWonderfulLife##.
60 60  
59 +To keep this information, the principle is to **move all the pages under their parents**, so the parent/child links **becomes a real hierarchy between pages**.
60 +
61 +To perform this conversion, we have developed an application called [[Nested Pages Migrator Application>>extensions:Extension.Nested Pages Migrator Application]].
62 +
61 61  = Fix the hierarchy =
62 62  
63 63  However, the current hierarchy may be messy. For example, so pages inside the space ##Proposal## could have ##Main.WebHome## as parent instead of ##Proposal.WebHome## which would be more logical. It happens when the user is invited to create pages in the space ##Proposal## directly from the main page (ex: http://design.xwiki.org/).

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