11/10/2022 0 Comments Dbschema portableRails assets:precompile # Compile all the assets named in Rails assets:environment # Load asset compile environment Rails assets:clobber # Remove compiled assets Rails assets:clean # Remove old compiled assets #DBSCHEMA PORTABLE UPDATE#Rails app:update # Update configs and some other initially generated files (or use just update:configs or update:bin) Rails app:template # Applies the template supplied by LOCATION=(/path/to/template) or URL Rails active_storage:install # Copy over the migration needed to the application Rails action_text:install # Copy over the migration, stylesheet, and JavaScript files Rails action_mailbox:install # Copy over the migration Rails action_mailbox:ingress:qmail # Relay an inbound email from Qmail to Action Mailbox (URL and INGRESS_PASSWORD required) Rails action_mailbox:ingress:postfix # Relay an inbound email from Postfix to Action Mailbox (URL and INGRESS_PASSWORD required) Rails action_mailbox:ingress:exim # Relay an inbound email from Exim to Action Mailbox (URL and INGRESS_PASSWORD required) I would personally like that kind of feedback when I write something other than no comment at all.Rails about # List versions of all Rails frameworks and the environment Update: I don't see the reason to give - to any node that says the parent node is cool. Thanks to all the Monks for their valuable help. Now the module is in the CPAN as DBSchema::Normalizer. #DBSCHEMA PORTABLE PORTABLE#I would need to rewrite the two subs that are dealing with column information (so many greps and maps wasted!) but this is a good chance to make the module portable across databases.Īfter some discussion in the list, I accepted Tim Bunce's suggestion to put it under a new namespace, DBSchema. I checked it and it seems to provide enough information to replace the direct calls I am using so far. Being in a monastery, I should become used to being patient ).ĭBIx::DBSchema was a good hint. Then DBIx:: is a good candidate (Or it should be as soon as I get an answer from CPAN. My initial idea was to ask for a DBI:: namespace, but yesterday I found out that such namespace is restricted. Re: Re: Database normalization the easier way There exist some modules which allow to do database schema operations in more portable way: Alzabo, DBIx::DBSchema.Īnyway idea is very intersting. It would be cool if it were not used MySQL specific code. I would not use standalone namespace for module which basically does just one thing. Re: Database normalization the easier way I hope this is going to be helpful, and I will be glad to receive your comments. If you want to try it risk-free, it is possible to run the script in "simulation mode," producing the SQL without executing it. This module deals only with MySQL databases, but the principle should be valid for any RDBMS. The basic concept is to let the database engine work the heavy load, while Perl is directing the operations without wasting any valuable resources. More important, Perl makes a generalized solution feasible.Ī complete explanation of the algorithm is in the module documentation. However, Perl makes it easier to collect the necessary pieces of information from the database engine and create the SQL statements. #DBSCHEMA PORTABLE CODE#The black magic behind this code is more SQL than Perl. Normalizer-0.05.tgz (complete package - 33 KB) Normalizer.pm (highlighted syntax - 128 KB) It is 968 lines (65% of which are documentation) and I didn't feel like posting all of it in this node.īut you are welcome to have a look at it from the following addresses: The Normalizer module is not there (yet) also because I don't know if I should ask for a standalone namespace or under DBIx:: (any piece of advice here will be more than welcome). ON (src.artist =lkp.artist and src.album =lkp.albumĭon't rush to the CPAN -). Src.title, src.duration, src.size, album_id # table from source_table JOINed to lookup_table # as foreign keys, we populate the destination # Here is the trick! Using the lookup fields SELECT DISTINCT NULL, artist,album,genre FROM MP3 ĭuration time not null default '00:00:00', (album_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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