RedBean failed on composer autoload manually generated - php

Question

im learning something about RedBeanPHP ORM and add the
code downloaded from http://www.redbeanphp.com/downloadredbean.php
to my project autoload using 'composer dump-autoload' command and
the configuration 'composer.json' in the root directory is:
{
"autoload": {
"classmap": [
"vendor/redbeanphp/src/rb.php",
"vendor/myowncode/src/Model.php"
]
}
}
on 'vendor/composer/installed.json' i put this:
[
{
"name": "gabordemooij/redbean",
"version": "5.4",
"require": {},
"autoload": {
"psr-4": {"RedBeanPHP\\": "src"}
}
},
"name": "myowncode/src",
"version": "1.0",
"require": {},
"autoload": {
"psr-4": {"MyCode\\": "src"}
}
}
]
and all works fine, at least until i try the example from the RedBean web
about 'Models' and the code:
<?php
require 'vendor/autoload.php';
class Model_Band extends RedBean_SimpleModel {
public function update() {
if ( count( $this->bean->ownMember ) >4 )
throw new Exception( 'Too many members!' );
}
}
results in error:
PHP Fatal error: Cannot declare class RedBeanPHP\RedException, because the name is already in use in /opt/lampp/htdocs/testing/vendor/redbeanphp/src/rb.php on line 8358
Fatal error: Cannot declare class RedBeanPHP\RedException, because the name is already in use in /opt/lampp/htdocs/testing/vendor/redbeanphp/src/rb.php on line 8358
but, if i dont use autoload and do this:
require 'vendor/redbean/src/rb.php';
class Model_Band extends RedBean_SimpleModel {
public function update() {
if ( count( $this->bean->ownMember ) >4 )
throw new Exception( 'Too many members!' );
}
}
it works, but i want that works with the autoload, i know, i can just open composer.json file and add the package name ("gabordemooij/redbean": "dev-master"), but i want to learn more about autoload and
get a good comprehension of whats wrong on my configuration/code.

Answer 1

The problem was the code from http://www.redbeanphp.com/downloadredbean.php its not
prepared for use with composer autoload, is some kind of amalgamation, all the code
in a single file, and i try downloading a release from:
https://github.com/gabordemooij/redbean/archive/v5.4.2.zip, i do the same process
to generate autoload, but we must edit the file loader on RedBeanPHP dir on the
release and change the REDBEANPHP_MAIN_DIR from phar://rb.phar/RedBeanPHP/
to vendor/redbean-5.4.2/RedBeanPHP/, i put the code on vendor/redbean-5.4.2,
and thats all problem solved :)