installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/DbCache_WpdbInjection.php

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+<?php
+namespace W3TC;
+
+/**
+ * class DbCache_WpdbInjection
+ * Allows to perform own operation instead of default behaviour of wpdb
+ * without inheritance
+ */
+class DbCache_WpdbInjection {
+	/**
+	 * Top database-connection object.
+	 * Initialized by DbCache_Wpdb::instance
+	 *
+	 * @var object
+	 */
+	protected $wpdb_mixin = null;
+
+	/**
+	 * Database-connection using overrides of next processor in queue
+	 * Initialized by DbCache_Wpdb::instance
+	 *
+	 * @var object
+	 */
+	protected $next_injection = null;
+
+	/**
+	 * initialization of object so that it can be used
+	 */
+	function initialize_injection( $wpdb_mixin, $next_injection ) {
+		$this->wpdb_mixin = $wpdb_mixin;
+		$this->next_injection = $next_injection;
+	}
+
+	/**
+	 * Placeholder for database initialization
+	 */
+	function initialize() {
+		return $this->wpdb_mixin->default_initialize();
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function insert( $table, $data, $format = null ) {
+		return $this->wpdb_mixin->default_insert( $table, $data, $format );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function query( $query ) {
+		return $this->wpdb_mixin->default_query( $query );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function _escape( $data ) {
+		return $this->wpdb_mixin->default__escape( $data );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function prepare( $query, $args ) {
+		return $this->wpdb_mixin->default_prepare( $query, $args );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function replace( $table, $data, $format = null ) {
+		return $this->wpdb_mixin->default_replace( $table, $data, $format );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function update( $table, $data, $where, $format = null, $where_format = null ) {
+		return $this->wpdb_mixin->default_update( $table, $data, $where, $format, $where_format );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function delete( $table, $where, $where_format = null ) {
+		return $this->wpdb_mixin->default_delete( $table, $where, $where_format );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function init_charset() {
+		return $this->wpdb_mixin->default_init_charset();
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function set_charset( $dbh, $charset = null, $collate = null ) {
+		return $this->wpdb_mixin->default_set_charset( $dbh, $charset, $collate );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function set_sql_mode( $modes = array() ) {
+		return $this->wpdb_mixin->default_set_sql_mode( $modes );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function flush() {
+		return $this->wpdb_mixin->default_flush();
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function check_database_version( $dbh_or_table = false ) {
+		return $this->wpdb_mixin->default_check_database_version( $dbh_or_table );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function supports_collation( $dbh_or_table = false ) {
+		return $this->wpdb_mixin->default_supports_collation( $dbh_or_table );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function has_cap( $db_cap, $dbh_or_table = false ) {
+		return $this->wpdb_mixin->default_has_cap( $db_cap, $dbh_or_table );
+	}
+
+	/**
+	 * Placeholder for apropriate wp_db method replacement.
+	 * By default calls wp_db implementation
+	 */
+	function db_version( $dbh_or_table = false ) {
+		return $this->wpdb_mixin->default_db_version( $dbh_or_table );
+	}
+
+	public function w3tc_footer_comment( $strings ) {
+		return $strings;
+	}
+
+	public function w3tc_usage_statistics_of_request( $storage ) {
+	}
+
+	public function flush_cache( $extras = array() ) {
+		return true;
+	}
+}