[TYPO3-mvc] Problems with using sorting and sorting_foreign in Relation

[Daniel Lorenz]

Hi,

I can't fix my Problem with ordering childs of an relation. I using a
mm-table for my relation with the field sorting and sorting_foreign.

I created with the extbase_kickstarter two Repositories "Foo" and "Bar"
and mm-Relation (0..* association table).

The ext_base.sql looks likt this:

CREATE TABLE tx_foobar_domain_model_foo (
	uid int(11) NOT NULL auto_increment,
	pid int(11) DEFAULT '0' NOT NULL,
	
	
	title tinytext,
	bars int(11) unsigned DEFAULT '0' NOT NULL,

	tstamp int(11) unsigned DEFAULT '0' NOT NULL,
	crdate int(11) unsigned DEFAULT '0' NOT NULL,
	deleted tinyint(4) unsigned DEFAULT '0' NOT NULL,
	hidden tinyint(4) unsigned DEFAULT '0' NOT NULL,

	t3ver_oid int(11) DEFAULT '0' NOT NULL,
	t3ver_id int(11) DEFAULT '0' NOT NULL,
	t3ver_wsid int(11) DEFAULT '0' NOT NULL,
	t3ver_label varchar(30) DEFAULT '' NOT NULL,
	t3ver_state tinyint(4) DEFAULT '0' NOT NULL,
	t3ver_stage tinyint(4) DEFAULT '0' NOT NULL,
	t3ver_count int(11) DEFAULT '0' NOT NULL,
	t3ver_tstamp int(11) DEFAULT '0' NOT NULL,
	t3_origuid int(11) DEFAULT '0' NOT NULL,

	sys_language_uid int(11) DEFAULT '0' NOT NULL,
	l18n_parent int(11) DEFAULT '0' NOT NULL,
	l18n_diffsource mediumblob NOT NULL,

	PRIMARY KEY (uid),
	KEY parent (pid)
);

CREATE TABLE tx_foobar_domain_model_bar (
	uid int(11) NOT NULL auto_increment,
	pid int(11) DEFAULT '0' NOT NULL,
	
	
	title tinytext,

	tstamp int(11) unsigned DEFAULT '0' NOT NULL,
	crdate int(11) unsigned DEFAULT '0' NOT NULL,
	deleted tinyint(4) unsigned DEFAULT '0' NOT NULL,
	hidden tinyint(4) unsigned DEFAULT '0' NOT NULL,

	t3ver_oid int(11) DEFAULT '0' NOT NULL,
	t3ver_id int(11) DEFAULT '0' NOT NULL,
	t3ver_wsid int(11) DEFAULT '0' NOT NULL,
	t3ver_label varchar(30) DEFAULT '' NOT NULL,
	t3ver_state tinyint(4) DEFAULT '0' NOT NULL,
	t3ver_stage tinyint(4) DEFAULT '0' NOT NULL,
	t3ver_count int(11) DEFAULT '0' NOT NULL,
	t3ver_tstamp int(11) DEFAULT '0' NOT NULL,
	t3_origuid int(11) DEFAULT '0' NOT NULL,

	sys_language_uid int(11) DEFAULT '0' NOT NULL,
	l18n_parent int(11) DEFAULT '0' NOT NULL,
	l18n_diffsource mediumblob NOT NULL,

	PRIMARY KEY (uid),
	KEY parent (pid)
);

CREATE TABLE tx_foobar_foo_bar_mm (
	uid int(10) NOT NULL auto_increment,
	pid int(11) DEFAULT '0' NOT NULL,
	
	uid_local int(11) unsigned DEFAULT '0' NOT NULL,
	uid_foreign int(11) unsigned DEFAULT '0' NOT NULL,
	tablenames varchar(255) DEFAULT '' NOT NULL,
	sorting int(11) unsigned DEFAULT '0' NOT NULL,
	sorting_foreign int(11) unsigned DEFAULT '0' NOT NULL,
	
	tstamp int(10) unsigned DEFAULT '0' NOT NULL,
	crdate int(10) unsigned DEFAULT '0' NOT NULL,
	hidden tinyint(3) unsigned DEFAULT '0' NOT NULL,

	PRIMARY KEY (uid),
	KEY parent (pid)
);

Now in Frontend I will show a list of all Foos and when showing a single
Foo, the first Bar should displayed. Now I think about a function in
BarRepository that return the next Bar to a given Bar, but not the next
Bar with next Bar UID. The return Bar should be the Bar next to the
given Bar by sorting in the mm-table. How can I solve this and get
access to the data in the mm-table?
Is there any solution having additional values in the mm-table?

Thanks a lot.

Daniel