Laravel query builder join using either one of two conditions - sql

Question

I have a complex query that I want to use either Query Builder or Eloquent (preferred) but I'm struggling with an inner join.
The inner join needs to be one of either of 2 conditions so if one fails, the other is used.
This is my original query
SELECT DISTINCT tableA.crmid, tableB.*
FROM tableB
INNER JOIN tableA ON tableA.crmid = tableB.customaccountsid
INNER JOIN tableC ON (tableC.relcrmid = tableA.crmid OR tableC.crmid = tableA.crmid)
WHERE tableA.deleted = 0 AND tableC.relcrmid = 123 AND tableC.relation_id = 186
This is my attempt at using Query Builder and I know where the problem lies. It's where I join tableC. I don't know how to use my condition there
DB::table('tableB')
->join('tableA', 'tableA.crmid', '=', 'tableB.customaccountsid')
->join('tableC', function($join) {
$join->on(DB::raw('(tableC.relcrmid = tableA.crmid OR tableC.crmid = tableA.crmid)'));
})
->where('tableA.deleted', 0)
->where('tableC.relcrmid', 3727)
->where('tableC.relation_id', 186)
->select('tableA.crmid', 'tableB.*')
Ant this is the output of the query when i output as SQL
SELECT `tableA`.`crmid`, `tableB`.*
FROM `tableB`
INNER JOIN `tableA` ON `tableA`.`crmid` = `tableB`.`customaccountsid`
INNER JOIN `tableC` ON `tableC`.`relcrmid` = (tableC.relcrmid = tableA.crmid OR tableC.crmid = tableA.crmid)
WHERE `tableA`.`deleted` = ? AND `tableC`.`relcrmid` = ? AND `tableC`.`relation_id` = ?

Answer 1

Just try this:
->join('tableC', function ($join){
$join->on(function($query){
$query->on('tableC.relcrmid', '=', 'tableA.crmid')
->orOn('tableC.crmid', '=', 'tableA.crmid');
});
})
It returns as in your original query:
INNER JOIN tableC ON (tableC.relcrmid = tableA.crmid OR tableC.crmid = tableA.crmid)