arrays - grouping PHP objects by parents recursively -
i have array of "tickets" objects :
array (size=31) 0 => object(ticketplus) public 'values' => array (size=46) 'id' => int 62483, 'milestone_id' => int 75096, 'parent_ticket_id' => int 0 ... 1 => object(ticketplus) public 'values' => array (size=46) 'id' => int 76603, 'milestone_id' => int 75096, 'parent_ticket_id' => int 62483 ... 2 => object(ticketplus) public 'values' => array (size=46) 'id' => int 75402, 'milestone_id' => int 75096, 'parent_ticket_id' => int 62483 ... 3 => object(ticketplus) public 'values' => array (size=46) 'id' => int 75403, 'milestone_id' => int 75096, 'parent_ticket_id' => int 75402 ... 4 => object(ticketplus) public 'values' => array (size=46) 'id' => int 75098, 'milestone_id' => int 75097, 'parent_ticket_id' => int 0 ... 5 => object(ticketplus) public 'values' => array (size=46) 'id' => int 76213, 'milestone_id' => int 75097, 'parent_ticket_id' => int 75098 ... and then, group them milestone_id, , end array :
array (size=3) 75096 => array (size=2) 'milestone' => object(milestone)[583] public 'values' => array (size=46) 'id' => int 75096, 'objects' => array (size=4) 76602 => object(ticketplus) ... 76603 => object(ticketplus) ... 75402 => object(ticketplus) ... 75403 => object(ticketplus) 75097 => array (size=2) 'milestone' => object(milestone)[587] public 'values' => array (size=46) 'id' => int 75097, 'objects' => array (size=2) 75098 => object(ticketplus)[530] ... 76213 => object(ticketplus)[569] ... but can see in first array, there parent-child relation between these tickets, due "parent_ticket_id" field. , can imagine, i'd end array grouped milestones , parents. :
array (size=3) 75096 => array (size=2) 'milestone' => object(milestone)[583] public 'values' => array (size=46) 'id' => int 75096, 'objects' => array (size=4) 76602 => object(ticketplus) public 'children' => array (size=2) 76603 => object(ticketplus) ... 75402 => object(ticketplus) public 'children' => array(size=1) 75403 => object(ticketplus) 75097 => array (size=2) 'milestone' => object(milestone)[587] public 'values' => array (size=46) 'id' => int 75097, 'objects' => array (size=2) 75098 => object(ticketplus)[530] public 'children' => array(size=1) 76213 => object(ticketplus)[569] ... and of course, there potentially infinite level of children, that's why guess should use recursive function group tickets parents.
my function transform raw array "grouped milestone" array following :
function groupbymilestone($objects, $min_state = state_visible, $min_visibility = visibility_normal) { $result = array(); if(is_foreachable($objects)) { $milestone_ids = objects_array_extract($objects, 'getmilestoneid'); if(is_foreachable($milestone_ids)) { $milestones = milestones::findbyids($milestone_ids, $min_state, $min_visibility); if(is_foreachable($milestones)) { foreach($milestones $milestone) { $result[$milestone->getid()] = array( 'milestone' => $milestone, 'objects' => array(), ); } // foreach } // if } // if // unknown milestone objects $result[0] = array( 'milestone' => null, 'objects' => array(), ); foreach($objects $key_obj => $object) { if(isset($result[$object->getmilestoneid()])) { $result[$object->getmilestoneid()]['objects'][$object->getid()] = $object; } else { $result[0]['objects'][$object->getid()] = $object; } // if } // foreach } // if return $result; } // groupbymilestone and have no idea how implement recursive parent grouping part. appreciated.
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