WebDNA module - Automated database archiving

This WebDNA talk-list message is from

1997

It keeps the original formatting. numero = 12999
interpreted = N
texte = Dear WebCatalog Users,Hi, it's me, Ken ... :)I have been frustrated with the need to always remember to duplicatemy database files on a daily basis for archiving purposes, so I wrotea custom WebDNA module to take care of this for me. It works reliablyand automatically.This is a drop-in module for WebCatalog 2.0 Macintosh. I doubt thatit will work on NT because I don't even know if NT has something likeMacintosh aliases or not. This module uses aliases - so NT users areprobably out of luck.Anyways, the purpose of this module is to archive all the WebCatalogdatabase files on your site, once a day, every day - automatically.It works by duplicating your database files and naming the duplicateswith the current date prepended to the file names.If you use this module you will always have a copy of the databasefiles that were in use on that day in the history of your web site.This module does NOT overwrite any existing archive files. Therefore,will take more and more of your disk space as time goes on... unlessyou move your archives to another drive once in a while - which is agood idea anyways, right? :)Installation is simple:1- Put the Archives folder into the WebSTAR root folder.2- Put an alias of each database you want to archive inside anotherspecial folder. Make sure these aliases have exactly the same namesas the database files they refer to.3-Type a special include tag into one or more of the WebCatalogtemplates on your site.How it works:Everything is automatic. The first time a WebCatalog template (withthe include tag) is requested on any particular day, all thedatabases you've aliased will be archived and named like this:970813-users.db.The file name begins with the date - in year/month/day (yymmdd)format - so the file shows up in the Mac's list views by date evenwhen you sort by name or kind, and so all the archives for one dayare grouped together in list views.Archiving occurs the very first time WebCatalog sees your specialinclude tag ever day. From then on, nothing happens again until thefirst time it sees the include tag the following day.This WebDNA slows down the delivery of the first page of the day, butthat's because the MacOS has to duplicate all your database files atthe same time - which takes a few seconds. This is not a concern forme because it only happens once per day, and it probably happensshortly after midnight when some non-local user is checking out mysite while I'm sleeping.After the databases are archived once each day, there's no slowdownin speed when serving subsequent templates, no matter how many timestemplates with the special include tag are requested. I wrote theWebDNA this way to make sure WebCatalog performs as fast as always(except for that once per day exception).Another option:If you don't want to save daily copies of your database files forhistorical reference, but you'd like to automate the creation of asingle copy of all your database files for backups, that's adifferent task. I created a different module to do that, too.Why I'm asking $10 for these modules:I've I spent HOURS working on these archiving modules. I ran intosome problems that were not obvious to me in the beginning, so theyprobably won't be obvious to many other people, either. But now I'vegot it working the way it is *supposed* to work, and it's a greatlittle feature to add to a WebCat site, not only for databasearchiving, but for peace of mind as well.Rather than seeing you 'reinvent the wheel' to create thisfunctionality for yourself, I thought that by offering these modulesfor a price as low as $10, I might actually be able to earn a fewdollars while saving you some time. Besides, I need money for rentnext month ... :)Sincerely, Ken GromeWebDNA Solutionshttp://www.hui.net/dna/webdna.html Associated Messages, from the most recent to the oldest:

WebDNA module - Automated database archiving (Kenneth Grome 1997)

Dear WebCatalog Users,Hi, it's me, Ken ... :)I have been frustrated with the need to always remember to duplicatemy database files on a daily basis for archiving purposes, so I wrotea custom WebDNA module to take care of this for me. It works reliablyand automatically.This is a drop-in module for WebCatalog 2.0 Macintosh. I doubt thatit will work on NT because I don't even know if NT has something likeMacintosh aliases or not. This module uses aliases - so NT users areprobably out of luck.Anyways, the purpose of this module is to archive all the WebCatalogdatabase files on your site, once a day, every day - automatically.It works by duplicating your database files and naming the duplicateswith the current date prepended to the file names.If you use this module you will always have a copy of the databasefiles that were in use on that day in the history of your web site.This module does NOT overwrite any existing archive files. Therefore,will take more and more of your disk space as time goes on... unlessyou move your archives to another drive once in a while - which is agood idea anyways, right? :)Installation is simple:1- Put the Archives folder into the WebSTAR root folder.2- Put an alias of each database you want to archive inside anotherspecial folder. Make sure these aliases have exactly the same namesas the database files they refer to.3-Type a special include tag into one or more of the WebCatalogtemplates on your site.How it works:Everything is automatic. The first time a WebCatalog template (withthe include tag) is requested on any particular day, all thedatabases you've aliased will be archived and named like this:970813-users.db.The file name begins with the date - in year/month/day (yymmdd)format - so the file shows up in the Mac's list views by date evenwhen you sort by name or kind, and so all the archives for one dayare grouped together in list views.Archiving occurs the very first time WebCatalog sees your specialinclude tag ever day. From then on, nothing happens again until thefirst time it sees the include tag the following day.This WebDNA slows down the delivery of the first page of the day, butthat's because the MacOS has to duplicate all your database files atthe same time - which takes a few seconds. This is not a concern forme because it only happens once per day, and it probably happensshortly after midnight when some non-local user is checking out mysite while I'm sleeping.After the databases are archived once each day, there's no slowdownin speed when serving subsequent templates, no matter how many timestemplates with the special include tag are requested. I wrote theWebDNA this way to make sure WebCatalog performs as fast as always(except for that once per day exception).Another option:If you don't want to save daily copies of your database files forhistorical reference, but you'd like to automate the creation of asingle copy of all your database files for backups, that's adifferent task. I created a different module to do that, too.Why I'm asking $10 for these modules:I've I spent HOURS working on these archiving modules. I ran intosome problems that were not obvious to me in the beginning, so theyprobably won't be obvious to many other people, either. But now I'vegot it working the way it is *supposed* to work, and it's a greatlittle feature to add to a WebCat site, not only for databasearchiving, but for peace of mind as well.Rather than seeing you 'reinvent the wheel' to create thisfunctionality for yourself, I thought that by offering these modulesfor a price as low as $10, I might actually be able to earn a fewdollars while saving you some time. Besides, I need money for rentnext month ... :)Sincerely, Ken GromeWebDNA Solutionshttp://www.hui.net/dna/webdna.html Kenneth Grome

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WebDNA module - Automated database archiving

1997

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