PHP IDatabase::nextSequenceValue方法代码示例

 /**
  * Insert a new empty page record for this article.
  * This *must* be followed up by creating a revision
  * and running $this->updateRevisionOn( ... );
  * or else the record will be left in a funky state.
  * Best if all done inside a transaction.
  *
  * @param IDatabase $dbw
  * @param int|null $pageId Custom page ID that will be used for the insert statement
  *
  * @return bool|int The newly created page_id key; false if the row was not
  *   inserted, e.g. because the title already existed or because the specified
  *   page ID is already in use.
  */
 public function insertOn($dbw, $pageId = null)
 {
     $pageIdForInsert = $pageId ?: $dbw->nextSequenceValue('page_page_id_seq');
     $dbw->insert('page', ['page_id' => $pageIdForInsert, 'page_namespace' => $this->mTitle->getNamespace(), 'page_title' => $this->mTitle->getDBkey(), 'page_restrictions' => '', 'page_is_redirect' => 0, 'page_is_new' => 1, 'page_random' => wfRandom(), 'page_touched' => $dbw->timestamp(), 'page_latest' => 0, 'page_len' => 0], __METHOD__, 'IGNORE');
     if ($dbw->affectedRows() > 0) {
         $newid = $pageId ?: $dbw->insertId();
         $this->mId = $newid;
         $this->mTitle->resetArticleID($newid);
         return $newid;
     } else {
         return false;
         // nothing changed
     }
 }

 /**
  * Insert a new revision into the database, returning the new revision ID
  * number on success and dies horribly on failure.
  *
  * @param IDatabase $dbw (master connection)
  * @throws MWException
  * @return int
  */
 public function insertOn($dbw)
 {
     global $wgDefaultExternalStore, $wgContentHandlerUseDB;
     // Not allowed to have rev_page equal to 0, false, etc.
     if (!$this->mPage) {
         $title = $this->getTitle();
         if ($title instanceof Title) {
             $titleText = ' for page ' . $title->getPrefixedText();
         } else {
             $titleText = '';
         }
         throw new MWException("Cannot insert revision{$titleText}: page ID must be nonzero");
     }
     $this->checkContentModel();
     $data = $this->mText;
     $flags = self::compressRevisionText($data);
     # Write to external storage if required
     if ($wgDefaultExternalStore) {
         // Store and get the URL
         $data = ExternalStore::insertToDefault($data);
         if (!$data) {
             throw new MWException("Unable to store text to external storage");
         }
         if ($flags) {
             $flags .= ',';
         }
         $flags .= 'external';
     }
     # Record the text (or external storage URL) to the text table
     if ($this->mTextId === null) {
         $old_id = $dbw->nextSequenceValue('text_old_id_seq');
         $dbw->insert('text', array('old_id' => $old_id, 'old_text' => $data, 'old_flags' => $flags), __METHOD__);
         $this->mTextId = $dbw->insertId();
     }
     if ($this->mComment === null) {
         $this->mComment = "";
     }
     # Record the edit in revisions
     $rev_id = $this->mId !== null ? $this->mId : $dbw->nextSequenceValue('revision_rev_id_seq');
     $row = array('rev_id' => $rev_id, 'rev_page' => $this->mPage, 'rev_text_id' => $this->mTextId, 'rev_comment' => $this->mComment, 'rev_minor_edit' => $this->mMinorEdit ? 1 : 0, 'rev_user' => $this->mUser, 'rev_user_text' => $this->mUserText, 'rev_timestamp' => $dbw->timestamp($this->mTimestamp), 'rev_deleted' => $this->mDeleted, 'rev_len' => $this->mSize, 'rev_parent_id' => $this->mParentId === null ? $this->getPreviousRevisionId($dbw) : $this->mParentId, 'rev_sha1' => $this->mSha1 === null ? Revision::base36Sha1($this->mText) : $this->mSha1);
     if ($wgContentHandlerUseDB) {
         // NOTE: Store null for the default model and format, to save space.
         // XXX: Makes the DB sensitive to changed defaults.
         // Make this behavior optional? Only in miser mode?
         $model = $this->getContentModel();
         $format = $this->getContentFormat();
         $title = $this->getTitle();
         if ($title === null) {
             throw new MWException("Insufficient information to determine the title of the " . "revision's page!");
         }
         $defaultModel = ContentHandler::getDefaultModelFor($title);
         $defaultFormat = ContentHandler::getForModelID($defaultModel)->getDefaultFormat();
         $row['rev_content_model'] = $model === $defaultModel ? null : $model;
         $row['rev_content_format'] = $format === $defaultFormat ? null : $format;
     }
     $dbw->insert('revision', $row, __METHOD__);
     $this->mId = $rev_id !== null ? $rev_id : $dbw->insertId();
     // Assertion to try to catch T92046
     if ((int) $this->mId === 0) {
         throw new UnexpectedValueException('After insert, Revision mId is ' . var_export($this->mId, 1) . ': ' . var_export($row, 1));
     }
     Hooks::run('RevisionInsertComplete', array(&$this, $data, $flags));
     return $this->mId;
 }