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Re: distance of PEAR_Registry and PEAR_Config: msg#00123

Subject: Re: distance of PEAR_Registry and PEAR_Config
On Sat, 2004-09-11 at 00:49, Greg Beaver wrote:
> Hi,
> 
> In my continuing battle to take channels out of my head and turn them 
> into PHP code, I've run up against a particular problem many times. 
> Currently, PEAR_Registry and PEAR_Config are completely separate, 
> meaning that if you get a PEAR_Config object, you have to manually set 
> up a PEAR_Registry object that is designed to work with that config object.
> 
> Currently, PEAR_Registry does a whole bunch of disk access in its 
> constructor, setting up the filemap, renaming older registry files, and 
> so on.
> 
> I would like to move all of that disk writing stuff into a separate 
> method that is ONLY called if one of the data access methods that either 
> write or read from the registry is called.  This would result in 1 extra 
> line of code for every method, and also in 1 extra check to see whether 
> initialization has happened, but also would allow creating a 
> PEAR_Registry without any directory/file creation.
> 
> What this change would allow, however, is hiding a registry object 
> inside of PEAR_Config such that php_dir always has a PEAR_Registry 
> object associated with it, allowing code like
> 
> $config = PEAR_Config::singleton();
> $reg = &$config->getRegistry('user'); // user registry for php_dir
> $reg = &$config->getRegistry('system'); // system registry for php_dir
> $config->set('php_dir', 'user', '/blah');
> $newreg = &$config->getRegistry('user'); // user registry for new 
> php_dir $blah
> 
> This, in turn would make it a lot easier to handle channels, as all 
> channel information is stored in the registry, and in order to do 
> channel-specific validation, I need to grab the channel info rather 
> circuitously through grabbing a config, getting the php_dir for the pear 
> channel, creating a registry, and then grabbing the registry's channel 
> information.  All this still would need to happen, it would just be 
> cleaner and easier to debug.
> 
> Any objections, or other ideas?

I don't get this.  What would a "user registry for php_dir" be?  Has the
world flipped sideways while I was not paying attention? :)

 - Stig

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