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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Drupal\display_builder\Entity; |
| 6 | |
| 7 | use Drupal\Core\Entity\EntityInterface; |
| 8 | use Drupal\Core\Entity\Query\QueryInterface; |
| 9 | use Drupal\Core\Entity\RevisionableInterface; |
| 10 | use Drupal\Core\Entity\RevisionLogInterface; |
| 11 | use Drupal\Core\Entity\Sql\SqlContentEntityStorage; |
| 12 | |
| 13 | /** |
| 14 | * Instance entity storage handler. |
| 15 | */ |
| 16 | class InstanceStorage extends SqlContentEntityStorage { |
| 17 | |
| 18 | private const MAX_HISTORY = 20; |
| 19 | |
| 20 | /** |
| 21 | * Load the last past revision as default. |
| 22 | * |
| 23 | * @param \Drupal\Core\Entity\RevisionableInterface $entity |
| 24 | * A revisionable entity. |
| 25 | * |
| 26 | * @return \Drupal\Core\Entity\RevisionableInterface |
| 27 | * The default entity revision. |
| 28 | */ |
| 29 | public function undo(RevisionableInterface $entity): RevisionableInterface { |
| 30 | $past = $this->getPast($entity); |
| 31 | |
| 32 | if (\count($past) === 0) { |
| 33 | return $entity; |
| 34 | } |
| 35 | |
| 36 | // @todo Use array_last() once we drop Drupal 11 support. |
| 37 | $previous = $past[\array_key_last($past)] ?? NULL; |
| 38 | |
| 39 | if ($previous) { |
| 40 | $previous->isDefaultRevision(TRUE); |
| 41 | $previous->save(); |
| 42 | $entity->isDefaultRevision(FALSE); |
| 43 | $entity->save(); |
| 44 | } |
| 45 | |
| 46 | return $previous; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Load the first future revision as default. |
| 51 | * |
| 52 | * @param \Drupal\Core\Entity\RevisionableInterface $entity |
| 53 | * A revisionable entity. |
| 54 | * |
| 55 | * @return \Drupal\Core\Entity\RevisionableInterface |
| 56 | * The default entity revision. |
| 57 | */ |
| 58 | public function redo(RevisionableInterface $entity): RevisionableInterface { |
| 59 | $future = $this->getFuture($entity); |
| 60 | |
| 61 | if (\count($future) === 0) { |
| 62 | return $entity; |
| 63 | } |
| 64 | |
| 65 | // @todo Use array_first() once we drop Drupal 11 support. |
| 66 | $next = $future[\array_key_first($future)] ?? NULL; |
| 67 | |
| 68 | if ($next) { |
| 69 | $next->isDefaultRevision(TRUE); |
| 70 | $next->save(); |
| 71 | $entity->isDefaultRevision(FALSE); |
| 72 | $entity->save(); |
| 73 | } |
| 74 | |
| 75 | return $next; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Delete all revisions except the default one. |
| 80 | * |
| 81 | * @param \Drupal\Core\Entity\RevisionableInterface $entity |
| 82 | * A revisionable entity. |
| 83 | */ |
| 84 | public function clear(RevisionableInterface $entity): void { |
| 85 | $query = $this->getAllRevisionsQuery($entity); |
| 86 | $query->condition('revision', (int) $entity->getRevisionId(), '<>'); |
| 87 | // QueryInterface::execute() returns an integer for count queries or an |
| 88 | // array of ids. |
| 89 | /** @var array $revisions */ |
| 90 | $revisions = $query->execute(); |
| 91 | |
| 92 | foreach (\array_keys($revisions) as $vid) { |
| 93 | $this->deleteRevision($vid); |
| 94 | } |
| 95 | |
| 96 | $entity->save(); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Get the past revisions. |
| 101 | * |
| 102 | * @param \Drupal\Core\Entity\RevisionableInterface $entity |
| 103 | * A revisionable entity. |
| 104 | * |
| 105 | * @return \Drupal\Core\Entity\RevisionableInterface[] |
| 106 | * An array of entity revisions keyed by their revision ID, or an empty |
| 107 | * array if none found. |
| 108 | */ |
| 109 | public function getPast(RevisionableInterface $entity): array { |
| 110 | $query = $this->getAllRevisionsQuery($entity); |
| 111 | // Compare revision using vid, the older revision has smaller ID. |
| 112 | $query->condition('revision', (int) $entity->getRevisionId(), '<'); |
| 113 | // QueryInterface::execute() returns an integer for count queries or an |
| 114 | // array of ids. |
| 115 | /** @var array $revisions */ |
| 116 | $revisions = $query->execute(); |
| 117 | $revisions = $this->loadMultipleRevisions(\array_keys($revisions)); |
| 118 | |
| 119 | return $revisions; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Get the future revisions. |
| 124 | * |
| 125 | * @param \Drupal\Core\Entity\RevisionableInterface $entity |
| 126 | * A revisionable entity. |
| 127 | * |
| 128 | * @return \Drupal\Core\Entity\RevisionableInterface[] |
| 129 | * An array of entity revisions keyed by their revision ID, or an empty |
| 130 | * array if none found. |
| 131 | */ |
| 132 | public function getFuture(RevisionableInterface $entity): array { |
| 133 | $query = $this->getAllRevisionsQuery($entity); |
| 134 | // Compare revision using vid, the newer revision has bigger ID. |
| 135 | $query->condition('revision', (int) $entity->getRevisionId(), '>'); |
| 136 | // QueryInterface::execute() returns an integer for count queries or an |
| 137 | // array of ids. |
| 138 | /** @var array $revisions */ |
| 139 | $revisions = $query->execute(); |
| 140 | $revisions = $this->loadMultipleRevisions(\array_keys($revisions)); |
| 141 | |
| 142 | return $revisions; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Get users. |
| 147 | * |
| 148 | * All users which have authored a step in present, past or future, with the |
| 149 | * most recent date of action. |
| 150 | * |
| 151 | * @param \Drupal\Core\Entity\RevisionLogInterface $entity |
| 152 | * A revisionable entity. |
| 153 | * |
| 154 | * @return array |
| 155 | * Each key is an User entity ID, each value is a timestamp. |
| 156 | */ |
| 157 | public function getUsers(RevisionLogInterface $entity): array { |
| 158 | // An associative array where keys are User IDs and values are timestamps. |
| 159 | $users = []; |
| 160 | // QueryInterface::execute() returns an integer for count queries or an |
| 161 | // array of ids. |
| 162 | /** @var array $revisions */ |
| 163 | $revisions = $this->getAllRevisionsQuery($entity)->execute(); |
| 164 | $revisions = $this->loadMultipleRevisions(\array_keys($revisions)); |
| 165 | |
| 166 | foreach ($revisions as $step) { |
| 167 | /** @var \Drupal\display_builder\InstanceInterface $step */ |
| 168 | // User ID is 0 when anonymous and NULL if not set or user was deleted. |
| 169 | // Let's standardize around anonymous so every revision has an user. |
| 170 | $user_id = (int) $step->getRevisionUserId(); |
| 171 | |
| 172 | if (!isset($users[$user_id]) || $step->getRevisionCreationTime() > $users[$user_id]) { |
| 173 | $users[$user_id] = (int) $step->getRevisionCreationTime(); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | return $users; |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * {@inheritdoc} |
| 182 | */ |
| 183 | protected function doPreSave(EntityInterface $entity): mixed { |
| 184 | /** @var \Drupal\Core\Entity\RevisionableInterface $entity */ |
| 185 | $return = parent::doPreSave($entity); |
| 186 | $isNewRevision = $entity->isNewRevision(); |
| 187 | $original = $entity->getOriginal(); |
| 188 | |
| 189 | if ($original && $isNewRevision) { |
| 190 | $this->clearFuture($original); |
| 191 | } |
| 192 | |
| 193 | return $return; |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * {@inheritdoc} |
| 198 | */ |
| 199 | protected function doPostSave(EntityInterface $entity, $update): void { |
| 200 | /** @var \Drupal\Core\Entity\RevisionableInterface $entity */ |
| 201 | $isNewRevision = $entity->isNewRevision(); |
| 202 | parent::doPostSave($entity, $update); |
| 203 | |
| 204 | if ($isNewRevision) { |
| 205 | $this->trimPast($entity); |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Get query for all revisions. |
| 211 | */ |
| 212 | private function getAllRevisionsQuery(RevisionableInterface $entity): QueryInterface { |
| 213 | $query = $this->getQuery()->accessCheck(FALSE)->allRevisions(); |
| 214 | |
| 215 | return $query->condition('id', $entity->id())->sort('revision', 'ASC'); |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Delete all future revisions. |
| 220 | */ |
| 221 | private function clearFuture(RevisionableInterface $entity): void { |
| 222 | foreach (\array_keys($this->getFuture($entity)) as $vid) { |
| 223 | $this->deleteRevision($vid); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * Keep only the last x history. |
| 229 | */ |
| 230 | private function trimPast(RevisionableInterface $entity): void { |
| 231 | $past = $this->getPast($entity); |
| 232 | |
| 233 | if (\count($past) > self::MAX_HISTORY) { |
| 234 | $oldest_revision_id = \array_key_first($past); |
| 235 | $this->deleteRevision($oldest_revision_id); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | } |