Hello, On 01/25/2003 01:40 PM, Dominik Wittenbeck wrote:
You have pretty much describe Metastorage. It is basically a generator application that lets you model classes of objects that are mapped and stored in relational database database.I am currently developing a object to relational mapping layer for PHP. It's NOT a simple treat all databases like one kind of layer (although it does involve it to preserve extensibility) but an XML based intermediate layer that creates both, table structures, following a conventional scheme and PHP classes that allow, OO access to these tables. I have enclosed the XML file that represents the intermediate layer. Its pretty readable even without the XML schema. I am currently under development, so don't expect anything useful in less than a few weeksQuestion: Does anyone of you know anyone who has tried something similar, because my research on the subject grows thin? Is something like this of public interest at all, or would you prefer accessing your datastructure the old fashion way?
You just need to to describe your classes also in a XML file with the class variables, validation rules, relationships between classes and the types of functions that your application needs to manipulate the classes objects.
Metastorage generates all the code for the classes ready to use in your applications. That includes also a separate class with code to install the database schema. The resulting classes API is database independent. This means that you do not need to change your application to use the same classes with different types databases. Many types of databases are supported. Still, you do not need to write absolutely any SQL in anywhere. Metastorage generates adequate code for you where needed.
I do not mean to discourage from continuing your work, but since there is a great deal of overlap between Metastorage and what you have in mind, you are most welcomed at least to eveluate Metastorage if not also contribute in anyway to its development.
Metastorage is Open Source and is avaliable here:
http://www.meta-language.net/news-2002-12-09-metastorage.html
http://www.meta-language.net/metastorage.html
--
Regards,
Manuel Lemos
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
