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<?php |
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/** |
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* Loads & Manages exporter classes. |
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* |
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* @package WP_Stream |
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*/ |
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|
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namespace WP_Stream; |
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|
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/** |
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* Class - Export |
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*/ |
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class Export { |
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/** |
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* Holds instance of plugin object |
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* |
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* @var Plugin |
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*/ |
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public $plugin; |
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|
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/** |
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* Hold registered exporters |
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* |
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* @var array |
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*/ |
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protected $exporters = array(); |
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|
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/** |
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* Class constructor |
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* |
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* @param Plugin $plugin The plugin object. |
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*/ |
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public function __construct( $plugin ) { |
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$this->plugin = $plugin; |
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|
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if ( 'wp_stream' === wp_stream_filter_input( INPUT_GET, 'page' ) ) { |
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add_action( 'admin_init', array( $this, 'render_download' ) ); |
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add_action( 'wp_stream_record_actions_menu', array( $this, 'actions_menu_export_items' ) ); |
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$this->register_exporters(); |
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} |
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} |
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|
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/** |
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* Outputs download file to user based on selected exporter |
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* |
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* @return void |
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*/ |
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public function render_download() { |
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$nonce = wp_stream_filter_input( INPUT_GET, 'stream_record_actions_nonce' ); |
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if ( ! wp_verify_nonce( $nonce, 'stream_record_actions_nonce' ) ) { |
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return; |
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} |
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|
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$action = wp_stream_filter_input( INPUT_GET, 'record-actions' ); |
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if ( strpos( $action, 'export-' ) !== 0 ) { |
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return; |
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} |
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|
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$output_type = str_replace( 'export-', '', $action ); |
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if ( ! array_key_exists( $output_type, $this->get_exporters() ) ) { |
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return; |
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} |
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|
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$this->plugin->admin->register_list_table(); |
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$list_table = $this->plugin->admin->list_table; |
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$list_table->prepare_items(); |
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add_filter( 'stream_records_per_page', array( $this, 'disable_paginate' ) ); |
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add_filter( 'wp_stream_list_table_columns', array( $this, 'expand_columns' ), 10, 1 ); |
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|
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$records = $list_table->get_records(); |
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$columns = $list_table->get_columns(); |
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$output = array(); |
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foreach ( $records as $item ) { |
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$output[] = $this->build_record( $item, $columns ); |
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} |
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|
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$exporters = $this->get_exporters(); |
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$exporter = $exporters[ $output_type ]; |
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$exporter->output_file( $output, $columns ); |
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} |
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|
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/** |
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* Add Export options to record actions menu |
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* |
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* @param array $action_menu_items Export types. |
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* |
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* @return array |
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*/ |
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public function actions_menu_export_items( $action_menu_items ) { |
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foreach ( $this->get_exporters() as $exporter ) { |
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$action = 'export-' . $exporter->slug; |
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/* translators: %s: an export format (e.g. "CSV") */ |
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$action_menu_items[ $action ] = sprintf( __( 'Export as %s', 'stream' ), $exporter->name ); |
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} |
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|
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return $action_menu_items; |
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} |
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|
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/** |
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* Extracts data from Records |
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* |
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* @param array $item Post to extract data from. |
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* @param array $columns Columns being extracted. |
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* @return array Numerically-indexed array with extracted data. |
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*/ |
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public function build_record( $item, $columns ) { |
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$record = new Record( $item ); |
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|
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$row_out = array(); |
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foreach ( array_keys( $columns ) as $column_name ) { |
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switch ( $column_name ) { |
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case 'date': |
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$created = gmdate( 'Y-m-d H:i:s', strtotime( $record->created ) ); |
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$row_out[ $column_name ] = get_date_from_gmt( $created, 'Y/m/d h:i:s A' ); |
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break; |
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|
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case 'summary': |
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$row_out[ $column_name ] = $record->summary; |
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break; |
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|
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case 'user_id': |
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$user = new Author( (int) $record->user_id, (array) $record->user_meta ); |
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$row_out[ $column_name ] = $user->get_display_name(); |
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break; |
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|
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case 'connector': |
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$row_out[ $column_name ] = $record->connector; |
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break; |
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|
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case 'context': |
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$row_out[ $column_name ] = $record->context; |
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break; |
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|
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case 'action': |
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$row_out[ $column_name ] = $record->{$column_name}; |
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break; |
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|
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case 'blog_id': |
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$row_out[ $column_name ] = $record->blog_id; |
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break; |
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|
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case 'ip': |
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$row_out[ $column_name ] = $record->{$column_name}; |
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break; |
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} |
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} |
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|
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return $row_out; |
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} |
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|
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/** |
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* Increase pagination limit for CSV Output |
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* |
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* @param int $records_per_page Old limit for records_per_page. |
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* @return int |
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*/ |
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public function disable_paginate( $records_per_page ) { |
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return 10000; |
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} |
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|
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/** |
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* Expand columns for CSV Output |
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* |
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* @param array $columns Columns currently registered to the list table being exported. |
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* @return array New columns for exporting. |
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*/ |
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public function expand_columns( $columns ) { |
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$new_columns = array( |
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'date' => $columns['date'], |
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'summary' => $columns['summary'], |
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'user_id' => $columns['user_id'], |
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'connector' => __( 'Connector', 'stream' ), |
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'context' => $columns['context'], |
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'action' => $columns['action'], |
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'ip' => $columns['ip'], |
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); |
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|
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if ( is_multisite() && $this->plugin->is_network_activated() ) { |
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$new_columns['blog_id'] = __( 'Blog ID', 'stream' ); |
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} |
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|
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return $new_columns; |
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} |
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|
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/** |
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* Registers all available exporters |
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* |
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* @return void |
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*/ |
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public function register_exporters() { |
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$exporters = array( |
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'csv', |
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'json', |
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); |
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|
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$classes = array(); |
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foreach ( $exporters as $exporter ) { |
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include_once $this->plugin->locations['dir'] . '/exporters/class-exporter-' . $exporter . '.php'; |
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$class_name = sprintf( '\WP_Stream\Exporter_%s', str_replace( '-', '_', $exporter ) ); |
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if ( ! class_exists( $class_name ) ) { |
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continue; |
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} |
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$class = new $class_name(); |
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if ( ! property_exists( $class, 'slug' ) ) { |
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continue; |
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} |
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$classes[ $class->slug ] = $class; |
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} |
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|
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/** |
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* Allows for adding additional exporters via classes that extend Exporter. |
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* |
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* @param array $classes An array of Exporter objects. In the format exporter_slug => Exporter_Class() |
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*/ |
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$this->exporters = apply_filters( 'wp_stream_exporters', $classes ); |
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|
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// Ensure that all exporters extend Exporter. |
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foreach ( $this->exporters as $key => $exporter ) { |
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if ( ! $this->is_valid_exporter( $exporter ) ) { |
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unset( $this->exporters[ $key ] ); |
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} |
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} |
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} |
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|
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/** |
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* Checks whether an exporter class is valid |
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* |
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* @param Exporter $exporter The class to check. |
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* @return bool |
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*/ |
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public function is_valid_exporter( $exporter ) { |
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if ( ! is_a( $exporter, 'WP_Stream\Exporter' ) ) { |
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return false; |
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} |
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|
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if ( ! method_exists( $exporter, 'is_dependency_satisfied' ) || ! $exporter->is_dependency_satisfied() ) { |
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return false; |
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} |
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|
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return true; |
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} |
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|
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|
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/** |
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* Returns an array with all available exporters |
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* |
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* @return array |
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*/ |
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public function get_exporters() { |
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return $this->exporters; |
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} |
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} |
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|
