Oliver Betz wrote:
That would be a bug. If you come across such circumstance, please report it.Chris Smith wrote:
For example about data storage: While PmWiki stores page data, metadata and old revisions in the same file, DokuWiki uses separate files. I would like to learn more about the reasons behind and the (dis-) advantages.
Let me try and give some explanation on this point.
- raw wiki pages are uncomplicated by extra data and are usable on their own
but you have to check also the metadata and history files. There is a risk to get "out of sync" when modifying the files from outside DokuWiki.
what do you mean by "ready to use". Dokuwiki stores a cached version of the rendered page. It'll use this version if the caching logic determines it is still valid.- speed
A PmWiki page data file contains the text of the current revision "ready to use", so there shouldn't be any (noticeable) difference. The revision diffs are at the end of the file and only used when viewing a diff or storing new page content.
- larger disk space requirement on older, inefficient file systems (e.g. FAT, FAT32)
even if the block/cluster size is small, and even when using compression, storing old revisions as a whole, takes much more space if the changes are small.
e.g. metadata contains a list of the internal links on the page. The caching logic makes use of this information to assist it in determining whether or not the cache is valid. The page title is included in the metadata. When "use first headings is on", any reference to to the page heading requires the page title. The title can be retrieved from the metadata quickly.Page metadata is stored separately to make it accessible without having to access the page data itself. Metadata files are small (generally under 1k, serialised php data). This makes accessing metadata extremely fast. This is important as it is referenced often especially by wikis which "use first headings for pagenames", where every link requires a
I don't know about this, could you please explain?
For details on what is contained within standard (plugins can add things) DokuWiki metadata, see the metadata page at splitbrain.lookup for the curent page title. It also speeds up some of the slower DokuWiki operations, e.g. backlinks.
O.k., I didn't know that the metadata file contains a list of all links.
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