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24 lines
1.2 KiB
Plaintext
24 lines
1.2 KiB
Plaintext
title: UpgradeMechanism
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modified: 20140711090154150
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created: 20140711090154150
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tags: Mechanisms
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# Open upgrade.html
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# Includes a data tiddler called `$:/UpgradeLibrary` that contains the latest compatible versions of all plugins in the library
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# Drag in old wiki file
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# Place tiddlers into a data tiddler `$:/Import` that is typed as a "pending import"
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# Kick off import processing for each tiddler
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## Give each "upgrader" module a chance to inspect the incoming tiddlers
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## Upgrader modules can trigger actions for each tiddler:
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##* Display a warning message
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##* Don't import
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##* Replace with another tiddler from the upgrade library
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##* Disable incompatible plugins
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# Display the newly created pending import tiddler through a new view template segment
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## Displays the payload tiddlers as a list of titles and checkboxes, with a dropdown showing the full details of the tiddler
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## Perhaps we also suppress the usual JSON display for data tiddlers behind a reveal widget
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# The user can adjust the selection checkboxes
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# Clicking "done" unpacks the selected tiddlers from the pending import tiddler
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# The pending import tiddler and the upgrade library tiddler are excluded from the subsequent save operation
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