On Monday, September 23, 2024 12:33:40 A.M. CDT Stefano Crocco wrote: > On domenica 22 settembre 2024 23:53:33 CEST Steven Robbins wrote:
> > The way I understood that suggestion is that there is NOT a one-time > > migration. Rather, the algorithm when encountering a page with forms is > > roughly: > > > > 1. look up the new way - if entry found, then use it; else > > 2. look up the old way - if entry found, then > > > > a) migrate to new storage > > b) use data to fill form > > > > So it would be a gradual migration. If the data is found under the old > > scheme, then for migration (Step 2a) I would think you have enough info to > > build an unambiguous key for the new scheme? > > I certainly have the information to build the new keys, but sometimes > (rarely) there's not enough information to associate the existing data with > the correct key. If the old data is under the key http://xyz.com# and the > page has two forms, with entries http://xyz.com#f1 and http://xyz.com#f2, > what should I do with the existing entry? Rename it as http://xyz.com#f1? > Rename it as http://xyz.com#f2? Create two entries, http://xyz.com#f2 and > http://xyz.com#f2 with the same contents? This is where I'm confused about the question .... What does the current code do in such a situation? Does it fill out form f1? f2? both? neither? I was assuming the new code could do the analogous thing and be "no less robust". Perhaps that is what you meant by the paragraph below. > The last one is what I thought > you meant: it keeps the ambiguity because it doesn't attempt to decide > which form the entry corresponds to but uses it for all of them, leaving it > to the user to correct things. In many circumstances, there are ways to > attempt to determine a single entry, but in some edge cases they could > fail. This is why I thought that having the user start the process would be > better. If I understand correctly, the answer is that the current code will fill out *both* forms f1 and f2 and let the user correct them? If you retain this behaviour then it would at least be familiar :-) Can you then migrate to the new structure after the user corrects and submits the form? I'm clearly way out of my depth here, but I have enjoyed the discussion. Thanks, -Steve
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