public function upgrade( $version ) {

		if ( $version < 1 ) {
			// Upgrade from version 0 (closed source service) to version 1 (initial open source offering)
			$this->upgradeEcommerce();
			$this->upgradeBookInformation();
			$this->upgradeBook();
		}
		if ( $version < 3 ) {
			\Pressbooks\CustomCss::upgradeCustomCss();
		}
		if ( $version < 4 ) {
			$this->fixDoubleSlashBug();
		}
		if ( $version < 5 ) {
			$this->changeDefaultBookCover();
		}
		if ( $version < 6 || $version < 7 ) {
			$this->makeThumbnailsForBookCover();
		}
		if ( $version < 8 ) {
			$this->resetLandingPage();
		}
		if ( $version < 10 ) {
			$taxonomy = Taxonomy::init();
			$taxonomy->insertTerms();
			flush_rewrite_rules( false );
		}
		if ( $version < 11 ) {
			$this->migratePartContentToEditor();
		}
		if ( $version < 12 ) {
			Container::get( 'Styles' )->initPosts();
		}
		if ( $version < 13 ) {
			$this->upgradeToPressbooksFive();
		}
	}
public function upgrade( $version ) {

		if ( $version < 1 ) {
			// Upgrade from version 0 (closed source service) to version 1 (initial open source offering)
			$this->upgradeEcommerce();
			$this->upgradeBookInformation();
			$this->upgradeBook();
		}
		if ( $version < 3 ) {
			\Pressbooks\CustomCss::upgradeCustomCss();
		}
		if ( $version < 4 ) {
			$this->fixDoubleSlashBug();
		}
		if ( $version < 5 ) {
			$this->changeDefaultBookCover();
		}
		if ( $version < 6 || $version < 7 ) {
			$this->makeThumbnailsForBookCover();
		}
		if ( $version < 8 ) {
			$this->resetLandingPage();
		}
		if ( $version < 10 ) {
			$taxonomy = Taxonomy::init();
			$taxonomy->insertTerms();
			flush_rewrite_rules( false );
		}
		if ( $version < 11 ) {
			$this->migratePartContentToEditor();
		}
		if ( $version < 12 ) {
			Container::get( 'Styles' )->initPosts();
		}
		if ( $version < 13 ) {
			$this->upgradeToPressbooksFive();
		}
	}
public function upgrade ( $ version ) { if ( $ version < 1 ) { // Upgrade from version 0 (closed source service) to version 1 (initial open source offering) $ this -> upgradeEcommerce ( ) ; $ this -> upgradeBookInformation ( ) ; $ this -> upgradeBook ( ) ; } if ( $ version < 3 ) { \ Pressbooks \ CustomCss :: upgradeCustomCss ( ) ; } if ( $ version < 4 ) { $ this -> fixDoubleSlashBug ( ) ; } if ( $ version < 5 ) { $ this -> changeDefaultBookCover ( ) ; } if ( $ version < 6 || $ version < 7 ) { $ this -> makeThumbnailsForBookCover ( ) ; } if ( $ version < 8 ) { $ this -> resetLandingPage ( ) ; } if ( $ version < 10 ) { $ taxonomy = Taxonomy :: init ( ) ; $ taxonomy -> insertTerms ( ) ; flush_rewrite_rules ( false ) ; } if ( $ version < 11 ) { $ this -> migratePartContentToEditor ( ) ; } if ( $ version < 12 ) { Container :: get ( 'Styles' ) -> initPosts ( ) ; } if ( $ version < 13 ) { $ this -> upgradeToPressbooksFive ( ) ; } }
Upgrade metadata.

@param int $version
Upgrade metadata .