[TYPO3-english] Autoloader doesn't work for BE-Modules

[Christian Kuhn]

Hey,

On 07/12/2011 09:54 AM, hinterindien at gmx.net wrote:
> For the autoloader to correctly include a class-file, the class-name needs to be of the form: "tx_extensionName_myClassName", because only when the class needs to be declared, the autoloader reads the file typo3conf/ext/extensionName/ext_autoload.php. The name of the class contains the mandatory hint to the place, where to find the autoload-instructions.

your analysis is correct.

Here are some more information for the autoloader in 4.5 and below:

In ext_autoloader.php the returned array KEYs *must* be lowercase, even 
if the real classname has uppercase characters in it.

A KEY should be of the form 'tx_myext_fooclass', where myext is the name 
of the extension as it is lying around in the filesystem. Background: 
The autoloader splits the given classname and guesses the extension name 
'myext' from the classname. It then looks in (usually) 
typo3conf/ext/myext for the ext_autoload.php file and loads it. This is 
why the classname must be constructed this way (to enable the autoloader 
to find the appropriate extension).

Actually this logic changed recently for 4.6 a bit: There the autoloader 
loads *all* ext_autoload.php files from the loaded extension list in one 
run and not on demand anymore. This way you could (if you really must, 
for example for external libraries) also add files to ext_autoload.php 
that do not stick to the above described naming scheme.

Regards
Christian