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Commit 10864436 authored by Mingsong Hu's avatar Mingsong Hu
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Improve hierarchy update algorithm

parent d2c9e782
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src/Controller/HmMenuController.php
+ 30
− 37
View file @ 10864436
......@@ -168,6 +168,8 @@ class HmMenuController extends ControllerBase {
$updated_links = $request->get('keys');
//$after = $request->get('after');
$before = $request->get('before');
$all_siblings = [];
$insert_after = TRUE;
if (is_array($updated_links) && !empty($updated_links)) {
if (empty($parent)) {
......@@ -186,48 +188,39 @@ class HmMenuController extends ControllerBase {
// The parent menu doesn't exist.
return new JsonResponse(['result' => 'fail']);
}
else {
if (empty($children)) {
$parent_link = reset($parent_links);
$children = $parent_link->subtree;
}
if ($children) {
// The parent menu has children.
$target_position = intval($target_position);
$all_siblings = [];
$insert_after = TRUE;
$position = 0;
foreach ($children as $child) {
$link = $child->link;
$link_id = $link->getPLuginId();
// Figure out if the new links are inserted
// after the target position.
if ($position++ == $target_position && $link_id !== $before) {
$insert_after = FALSE;
}
$all_siblings[$link_id] = (int) $link->getWeight();
if (empty($children)) {
$parent_link = reset($parent_links);
$children = $parent_link->subtree;
}
if ($children) {
// The parent menu has children.
$target_position = intval($target_position);
$position = 0;
foreach ($children as $child) {
$link = $child->link;
$link_id = $link->getPLuginId();
// Figure out if the new links are inserted
// after the target position.
if ($position++ == $target_position && $link_id !== $before) {
$insert_after = FALSE;
}
$new_hierarchy = $this->hmPluginTypeManager->updateHierarchy($target_position, $all_siblings, $updated_links, $insert_after);
$weight = $new_hierarchy['start_weight'];
$moving_siblings = $new_hierarchy['moving_siblings'];
// Update all sibling links needed to update.
foreach ($moving_siblings as $link_id => $link_weight) {
$this->menuLinkManager->updateDefinition($link_id, ['weight' => $link_weight]);
}
}
else {
// The parent link doesn't have children.
$weight = 0;
}
// Move all links updated.
foreach ($updated_links as $link_id) {
$this->menuLinkManager->updateDefinition($link_id, ['weight' => $weight++, 'parent' => $parent]);
$all_siblings[$link_id] = (int) $link->getWeight();
}
}
else {
// The parent link doesn't have children.
}
$new_hierarchy = $this->hmPluginTypeManager->updateHierarchy($target_position, $all_siblings, $updated_links, $insert_after);
// Update all links need to update.
foreach ($new_hierarchy as $link_id => $link_weight) {
$this->menuLinkManager->updateDefinition($link_id, ['weight' => $link_weight, 'parent' => $parent]);
}
return new JsonResponse(['result' => 'success']);
}
......
src/Controller/HmTaxonomyController.php
+ 8
− 21
View file @ 10864436
......@@ -146,6 +146,8 @@ class HmTaxonomyController extends ControllerBase {
//$after = $request->get('after');
$before = $request->get('before');
$success = FALSE;
$insert_after = TRUE;
$all_siblings = [];
if (is_array($updated_terms) && !empty($updated_terms)) {
// Taxonomy access control.
......@@ -156,7 +158,6 @@ class HmTaxonomyController extends ControllerBase {
if (empty($children)) {
if (Term::load($parent_id)) {
// The parent term hasn't had any children.
$weight = 0;
}
else {
// The parent term doesn't exist.
......@@ -166,8 +167,6 @@ class HmTaxonomyController extends ControllerBase {
else {
// The parent term has children.
$target_position = intval($target_position);
$all_siblings = [];
$insert_after = TRUE;
$position = 0;
foreach ($children as $child) {
......@@ -179,30 +178,18 @@ class HmTaxonomyController extends ControllerBase {
$all_siblings[$child->tid] = (int) $child->weight;
}
$new_hierarchy = $this->hmPluginTypeManager->updateHierarchy($target_position, $all_siblings, $updated_terms, $insert_after);
$weight = $new_hierarchy['start_weight'];
$moving_siblings = $new_hierarchy['moving_siblings'];
$tids = array_keys($moving_siblings);
if (!empty($tids)) {
// Update siblings.
$term_siblings = Term::loadMultiple($tids);
foreach ($term_siblings as $term) {
$term->setWeight($moving_siblings[$term->id()]);
$success = $term->save();
}
}
}
$new_hierarchy = $this->hmPluginTypeManager->updateHierarchy($target_position, $all_siblings, $updated_terms, $insert_after);
$tids = array_keys($new_hierarchy);
// Load all terms needed to update.
$terms = Term::loadMultiple($updated_terms);
// Update all terms, the weight will be increased by 1,
// after inserting.
$terms = Term::loadMultiple($tids);
// Update all terms.
foreach ($terms as $term) {
if ($access_control_handler->access($term, 'update')) {
$term->set('parent', ['target_id' => $parent_id]);
$term->setWeight($weight++);
$term->setWeight($new_hierarchy[$term->id()]);
$success = $term->save();
}
}
......
src/PluginTypeManager.php
+ 89
− 81
View file @ 10864436
......@@ -97,107 +97,115 @@ class PluginTypeManager {
* IDs of new items inserted.
* @param int|bool $after
* Indicator if new items are inserted after target position.
* @param int $weight
* The initial weight.
*
* @return array
* All siblings needed to move and their new weights.
*/
public function updateHierarchy(int $target_position, array $all_siblings, array $updated_items, $after) {
$filtered_moving_siblings = [];
public function updateHierarchy(int $target_position, array $all_siblings, array $updated_items, $after, int $weight = 0) {
$new_hierarchy = [];
$first_half = TRUE;
$total = count($all_siblings);
if ($target_position === 0) {
// The insert postion is the first position.
// we don't need to move any siblings.
$weight = (int) reset($all_siblings) - 1;
}
elseif ($target_position >= $total - 1) {
// The insert postion is the end,
// we don't need to move any siblings.
$last_item= array_slice($all_siblings, -1, 1, TRUE);
$weight = (int) reset($last_item) + 1;
}
else {
$target_item = array_slice($all_siblings, $target_position, 1, TRUE);
$weight = (int) reset($target_item);
// If the target position is in the second half,
// we will move all siblings
// after the target position forward.
// Otherwise, we will move siblings
// before the target position backwards.
if ($target_position >= $total / 2) {
$first_half = FALSE;
if ($after) {
// Insert after the target position.
// The target stay where it is.
$weight += 1;
$moving_siblings = array_slice($all_siblings, $target_position + 1, NULL, TRUE);
}
else {
// Insert before the target position.
// The target need to move forwards.
$moving_siblings = array_slice($all_siblings, $target_position, NULL, TRUE);
}
$step = $weight + count($updated_items);
if (!empty($all_siblings)) {
$total = count($all_siblings);
if ($target_position === 0) {
// The insert postion is the first position.
// we don't need to move any siblings.
$weight = (int) reset($all_siblings) - 1;
}
elseif ($target_position >= $total - 1) {
// The insert postion is the end,
// we don't need to move any siblings.
$last_item= array_slice($all_siblings, -1, 1, TRUE);
$weight = (int) reset($last_item) + 1;
}
else {
if ($after) {
// Insert after the target position.
// The target need to move backwards.
$moving_siblings = array_slice($all_siblings, 0, $target_position + 1, TRUE);
$target_item = array_slice($all_siblings, $target_position, 1, TRUE);
$weight = (int) reset($target_item);
// If the target position is in the second half,
// we will move all siblings
// after the target position forward.
// Otherwise, we will move siblings
// before the target position backwards.
if ($target_position >= $total / 2) {
$first_half = FALSE;
if ($after) {
// Insert after the target position.
// The target stay where it is.
$weight += 1;
$moving_siblings = array_slice($all_siblings, $target_position + 1, NULL, TRUE);
}
else {
// Insert before the target position.
// The target need to move forwards.
$moving_siblings = array_slice($all_siblings, $target_position, NULL, TRUE);
}
$step = $weight + count($updated_items);
}
else {
// Insert before the target position.
// The target stay where it is.
$weight -= 1;
$moving_siblings = array_slice($all_siblings, 0, $target_position, TRUE);
}
$weight = $step = $weight - count($updated_items);
// Reverse the siblings_moved array
// as we will decrease the weight
// starting from the first element
// and the new weight should be in
// an opposite order.
$moving_siblings = array_reverse($moving_siblings, TRUE);
}
// Move all siblings that need to move.
foreach($moving_siblings as $item_id => $item_weight) {
// Skip all links in the updated array. They will be moved later.
if (in_array($item_id, $updated_items)) {
continue;
}
if ($first_half) {
// While moving the first half of the siblings,
// all moving siblings' weight are decreased,
// if they are greater than the step.
if ((int)$item_weight < --$step) {
// There is planty room, no need to move anymore.
break;
if ($after) {
// Insert after the target position.
// The target need to move backwards.
$moving_siblings = array_slice($all_siblings, 0, $target_position + 1, TRUE);
}
else {
// Update the weight.
$filtered_moving_siblings[$item_id] = $step;
// Insert before the target position.
// The target stay where it is.
$weight -= 1;
$moving_siblings = array_slice($all_siblings, 0, $target_position, TRUE);
}
$weight = $step = $weight - count($updated_items);
// Reverse the siblings_moved array
// as we will decrease the weight
// starting from the first element
// and the new weight should be in
// an opposite order.
$moving_siblings = array_reverse($moving_siblings, TRUE);
}
else {
// While moving the second half of the siblings,
// all moving siblings' weight are increased,
// if they are less than the step.
if ((int)$item_weight < ++$step) {
// Update the weight.
$filtered_moving_siblings[$item_id] = $step;
// Move all siblings that need to move.
foreach($moving_siblings as $item_id => $item_weight) {
// Skip all links in the updated array. They will be moved later.
if (in_array($item_id, $updated_items)) {
continue;
}
if ($first_half) {
// While moving the first half of the siblings,
// all moving siblings' weight are decreased,
// if they are greater than the step.
if ((int)$item_weight < --$step) {
// There is planty room, no need to move anymore.
break;
}
else {
// Update the weight.
$new_hierarchy[$item_id] = $step;
}
}
else {
// There is planty room, no need to move anymore.
break;
// While moving the second half of the siblings,
// all moving siblings' weight are increased,
// if they are less than the step.
if ((int)$item_weight < ++$step) {
// Update the weight.
$new_hierarchy[$item_id] = $step;
}
else {
// There is planty room, no need to move anymore.
break;
}
}
}
}
}
return ['start_weight' => $weight, 'moving_siblings' => $filtered_moving_siblings];
foreach ($updated_items as $item) {
$new_hierarchy[$item] = $weight++;
}
return $new_hierarchy;
}
}
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