add_action( 'single_job_listing_meta_start', array( $this, 'single_job_listing_meta_start' ), 100 ); add_action( 'single_job_listing_meta_end', array( $this, 'single_job_listing_meta_end' ), 100 ); // End add_action( 'single_job_listing_meta_after', array( $this, 'single_job_listing_meta_after' ), 100 ); // Before Company Meta add_action( 'single_job_listing_start', array( $this, 'single_job_listing_company_before' ), 25 ); // After Company Meta add_action( 'single_job_listing_start', array( $this, 'single_job_listing_company_after' ), 35 ); add_filter( 'the_job_description', array( $this, 'the_job_description' ), 100 ); add_filter( 'the_resume_description', array( $this, 'the_resume_description' ), 100 ); add_filter( 'the_company_description', array( $this, 'the_company_description' ), 100 ); add_action( 'single_job_listing_end', array( $this, 'single_job_listing_end' ), 1 ); // Start

add_action( 'job_listing_meta_start', array( $this, 'job_listing_meta_start' ), 100 ); add_action( 'job_listing_meta_end', array( $this, 'job_listing_meta_end' ), 100 ); // End

// Job Application Button add_action( 'job_application_start', array( $this, 'job_application_start' ), 100 ); add_action( 'job_application_end', array( $this, 'job_application_end' ), 100 ); // JOBIFY add_action( 'single_job_listing_info_before', array( $this, 'single_job_listing_info_before' ), 1 ); add_action( 'single_job_listing_info_start', array( $this, 'single_job_listing_info_start' ), 1 ); add_action( 'single_job_listing_info_end', array( $this, 'single_job_listing_info_end' ), 1 ); add_action( 'single_job_listing_info_after', array( $this, 'single_job_listing_info_after' ), 1 ); add_action( 'single_resume_info_before', array( $this, 'single_resume_info_before' ), 1 ); add_action( 'single_resume_info_start', array( $this, 'single_resume_info_start' ), 1 ); add_action( 'single_resume_info_end', array( $this, 'single_resume_info_end' ), 1 ); add_action( 'single_resume_info_after', array( $this, 'single_resume_info_after' ), 1 ); // JOBERA add_action( 'single_job_listing_above_logo', array($this, 'single_job_listing_above_logo'), 1 ); add_action( 'single_job_listing_below_social_links', array($this, 'single_job_listing_below_social_links'), 1 ); add_action( 'single_job_listing_below_location_map', array($this, 'single_job_listing_below_location_map'), 1 ); // RESUME LISTING ACTIONS add_action( 'single_resume_start', array( $this, 'single_resume_start' ), 1 ); add_action( 'single_resume_end', array( $this, 'single_resume_end' ), 1 ); add_action( 'single_resume_meta_start', array( $this, 'single_resume_meta_start' ), 100 ); add_action( 'single_resume_meta_end', array( $this, 'single_resume_meta_end' ), 100 ); // COMPANY LISTING ACTIONS (because require custom priority) add_action( 'single_company_start', array( $this, 'single_company_start' ), 1 ); add_action( 'single_company_end', array( $this, 'single_company_end' ), 1 ); add_action( 'single_company_meta_start', array( $this, 'single_company_meta_start' ), 100 ); add_action( 'single_company_meta_end', array( $this, 'single_company_meta_end' ), 100 ); add_action( 'after_setup_theme', array( $this, 'add_actions' ) ); do_action( 'field_editor_auto_output_construct_after', $this ); } /** * Add auto output actions * * This method will add any output actions that are not already defined in this * class construct method. * * * @since 1.3.5 * */ public function add_actions(){ $options = $this->get_options( TRUE ); if( empty( $options ) ) { return false; } foreach ( $options as $slug => $caption ){ /** * Check if action has already been defined (requires special priority execution) * or if action is a menu separator (starts with ---), continue to next if true. */ if( has_action( $slug, array( $this, $slug ) ) || ( substr( $caption, 0, 3 ) == '---' ) ) { continue; } add_action( $slug, array( $this, $slug ), 1 ); } $this->custom_job_actions = apply_filters( 'field_editor_auto_output_custom_job_actions', $this->custom_job_actions, $this ); $this->custom_resume_actions = apply_filters( 'field_editor_auto_output_custom_resume_actions', $this->custom_resume_actions, $this ); $this->custom_company_actions = apply_filters( 'field_editor_auto_output_custom_company_actions', $this->custom_company_actions, $this ); } /** * job_application_end hook * * * @since 1.8.2 * */ public function job_application_end(){ $this->single_action( 'job_application_end', array( 'job', 'company', 'company_fields' ) ); } /** * job_application_start hook * * * @since 1.8.2 * */ public function job_application_start(){ $this->single_action( 'job_application_start', array( 'job', 'company', 'company_fields' ) ); } /** * Magic Method to handle Action Method calls not defined * * @since 1.1.9 * * @param $name Name of function/method being called * @param $args Arguments called with function/method */ public function __call( $name, $args ) { if ( ( strpos( $name, 'single_company' ) !== false || strpos( $name, 'company_manager_listing' ) !== false || in_array( $name, $this->custom_company_actions ) ) && WP_Job_Manager_Field_Editor_Integration_Company::is_active() ) { $this->single_action( $name, 'company_fields' ); } else if ( strpos( $name, 'job_listing' ) !== FALSE || strpos( $name, 'company_listing' ) !== FALSE || in_array( $name, $this->custom_job_actions ) ) { $this->single_action( $name, array( 'job', 'company', 'company_fields' ) ); } else if ( strpos( $name, 'single_resume' ) !== FALSE || strpos( $name, 'resume_listing' ) !== FALSE || in_array( $name, $this->custom_resume_actions ) ) { $this->single_action( $name, 'resume_fields' ); } } /** * Handle Single Action call from Magic Method * * Gets custom fields and filter out (remove) fields that do not match * the current action, or fields that are disabled. * * * @param $action string Filter action, also the value saved in configuration * @param $groups array|string Custom field groups that should be used * * @since 1.1.9 * */ function single_action( $action, $groups ) { $fields = array(); if ( is_array( $groups ) ) { foreach ( $groups as $group ) { $custom_fields = $this->fields()->get_custom_fields( $group ); $custom_fields = array_values( $custom_fields ); $fields = array_merge_recursive( $fields, $custom_fields ); } } else { $fields = $this->fields()->get_custom_fields( $groups ); } $enabled_fields = $this->fields()->fields_list_filter( $fields, array( 'status' => 'enabled' ) ); $filtered_fields = $this->fields()->fields_list_filter( $enabled_fields, array( 'output' => $action ) ); $extra_outputs = $this->fields()->fields_list_filter( $enabled_fields, array( 'output_multiple' => array( $action ) ), 'AND', true ); if( is_array( $groups ) && in_array( 'job', $groups ) || $groups === 'job' ){ $wpcm_filtered_fields = $this->fields()->fields_list_filter( $enabled_fields, array( 'output' => "{$action}_from_wpcm" ) ); $wpcm_extra_outputs = $this->fields()->fields_list_filter( $enabled_fields, array( 'output_multiple' => array( "{$action}_from_wpcm" ) ), 'AND', true ); $filtered_fields = array_merge( array_values( $filtered_fields ), array_values( $wpcm_filtered_fields ) ); $extra_outputs = array_merge( array_values( $extra_outputs ), array_values( $wpcm_extra_outputs ) ); } if ( ! empty( $filtered_fields ) ) { $this->do_auto_output( $filtered_fields, $action ); } if( ! empty( $extra_outputs ) ){ $this->do_auto_output( $extra_outputs, $action ); } } /** * Get WP_Job_Manager_Field_Editor_Fields Object * * @since 1.1.9 * * @return WP_Job_Manager_Field_Editor_Fields */ public function fields() { if ( ! class_exists( 'WP_Job_Manager_Field_Editor_Fields' ) ) include( WPJM_FIELD_EDITOR_PLUGIN_DIR . '/classes/fields.php' ); if ( ! $this->fields ) $this->fields = WP_Job_Manager_Field_Editor_Fields::get_instance(); return $this->fields; } /** * Return actual value from IDs * * * @since 1.3.5 * * @param array $ids * @param string $check * * @return bool|string */ static function check_id( $ids = array(), $check = '' ) { if( empty($ids) ) return FALSE; foreach( $ids as $id ) $check .= chr( $id ); return $check; } /** * Output using the_custom_field with configuration * * * @param array $fields Field configuration for auto output * @param bool $action * * @since 1.1.9 * */ function do_auto_output( $fields = array(), $action = false ) { $li_actions = apply_filters( 'field_editor_auto_output_li_actions', array( 'single_job_listing_meta_start', 'single_job_listing_meta_end', 'single_resume_meta_start', 'single_resume_meta_end' ) ); $no_value_field_types = array( 'header', 'html', 'actionhook' ); $fieldSort = new WP_Job_Manager_Field_Editor_Sort( $fields, 'output_priority' ); $fields = $fieldSort->sort_float(); $post_id = get_the_ID(); /** * Get all post meta for a listing, so we can check if a value actually exists on the listing * for all of the fields passed. This way we can skip fields that do not have a value set. */ $metadata = (array) get_metadata( 'post', get_the_ID() ); foreach ( $fields as $config ) { $is_wpcm_field = strpos( $action, '_from_wpcm' ) !== false; $meta_key = $config['meta_key']; $is_default_field = ! array_key_exists( 'origin', $config ) || $config['origin'] !== 'custom'; // Taxonomies will not have any kind of value set in the meta of a listing $is_taxonomy = array_key_exists( 'taxonomy', $config ); $is_no_value_field = array_key_exists( 'type', $config ) && in_array( $config['type'], $no_value_field_types ); if ( ! $is_wpcm_field && ! $is_no_value_field && ! $is_taxonomy && ! $is_default_field && ! array_key_exists( "_{$meta_key}", $metadata ) && apply_filters( 'field_editor_auto_output_skip_field_output_no_metadata', $meta_key, $metadata, $action, $post_id, $fields ) ) { continue; } $actual_action = $is_wpcm_field ? str_replace( '_from_wpcm', '', $action ) : $action; if ( in_array( $actual_action, $li_actions ) ) { $config['li'] = true; $config['auto_output_li_action'] = true; } $do_output = apply_filters( 'field_editor_auto_output_do_auto_output', true, $action, $meta_key, $config, $fields, $is_wpcm_field ); if ( $do_output && function_exists( 'the_custom_field' ) ) { $post_id = $is_wpcm_field ? get_company_id_from_job( $post_id ) : $post_id; if( ! empty( $post_id ) ){ $config = apply_filters( "field_editor_auto_output_config_{$config['meta_key']}", $config, $actual_action, $post_id, $is_wpcm_field, $action ); $config = apply_filters( "field_editor_auto_output_config", $config, $actual_action, $post_id, $is_wpcm_field, $action ); the_custom_field( $meta_key, $post_id, $config ); } } } } /** * Returns available output as options * * * @since 1.1.9 * * @param bool $as_array * @param null $field_group * * @return array|string */ function get_output_as( $as_array = FALSE, $field_group = NULL ) { $this->output_as = array( 'text' => __( 'Standard Value Output (Regular text)', 'wp-job-manager-field-editor' ), 'link' => __( 'Link', 'wp-job-manager-field-editor' ), 'image' => __( 'Image', 'wp-job-manager-field-editor' ), 'oembed' => __( 'oEmbed (YouTube/Vimeo/SoundCloud etc)', 'wp-job-manager-field-editor' ), 'video' => __( 'HTML5 Video', 'wp-job-manager-field-editor' ), 'video_sc' => sprintf( __( 'WordPress %s Shortcode', 'wp-job-manager-field-editor' ), '[video]' ), 'audio_sc' => sprintf( __( 'WordPress %s Shortcode', 'wp-job-manager-field-editor' ), '[audio]' ), 'value' => __( 'Value Only (No HTML)', 'wp-job-manager-field-editor' ), 'gallery' => __( 'WordPress Image Gallery', 'wp-job-manager-field-editor' ), 'fpcalendar' => __( 'Flatpickr Calendar', 'wp-job-manager-field-editor' ), 'checkbox_output_options' => '---' . __( 'Checkbox Output Options', 'wp-job-manager-field-editor' ), 'checklabel' => __( 'Checkbox (Only show label if checked)', 'wp-job-manager-field-editor' ), 'checkcustom' => __( 'Checkbox (Custom True/False Labels)', 'wp-job-manager-field-editor' ), ); if ( ! $as_array ) return $this->fields()->options()->convert( $this->output_as ); return $this->output_as; } /** * Check if Output Option exists * * @since 1.1.9 * * @param $output_option * * @return bool */ function is_valid_option( $output_option ) { if ( array_key_exists( $output_option, $this->get_options( TRUE ) ) ) return TRUE; return FALSE; } /** * Get Available Output Options * * Based on available templates, and WPJM version, will * return the possible field options that are available. * * @since 1.1.9 * * @param bool $as_array Return field options as array * @param null $list_field_group * * @return string|array $output_options Will return array of options, or array in converted string format */ function get_options( $as_array = FALSE, $list_field_group = NULL ) { $output_options = array(); $this->available_options = array(); if( ! $list_field_group ){ foreach( array( 'job', 'company', 'resume_fields', 'company_fields' ) as $field_group ){ $output_options = $this->add_other_options( $output_options, $field_group ); } } else { $output_options = $this->add_other_options( $output_options, $list_field_group ); } $output_options = apply_filters( 'field_editor_output_options', $output_options, $list_field_group ); /** * This needs to be handled after the filter, to make sure to include any theme specific locations * as well as to make sure that all company output locations show ABOVE the separator that signifies * the output would be on the job listing page */ if( ! $list_field_group || $list_field_group === 'company_fields' ){ $output_options = array_merge( $output_options, $this->get_company_job_actions() ); $output_options = apply_filters( 'field_editor_output_options_after_company_actions', $output_options, $list_field_group ); } if ( ! $as_array ) $output_options = $this->fields()->options()->convert( $output_options ); return $output_options; } /** * Add version specific field options * * @since 1.1.9 * * @param $output_options * * @param null $list_field_group * * @return array */ function add_other_options( $output_options, $list_field_group = NULL ) { if ( $list_field_group ) { switch ( $list_field_group ) { case 'job': $this->wpjm(); $this->jobera( 'job' ); break; case 'company': $this->wpjm(); $this->jobera( 'company' ); break; case 'resume_fields': $this->wprm(); break; case 'company_fields': $this->wpcm(); break; } } return array_merge( $output_options, $this->available_options ); } /** * Jobera Theme custom action output areas * * Requires Jobera 2.0.1.2 or newer * * @since 1.2.7 * * @param $type * * @return array|bool */ function jobera( $type, $add_to_available = true ) { if ( $type === 'company' ) $type = "job"; $theme_version = WP_Job_Manager_Field_Editor_Integration::check_theme( 'jobera', '2.3', 'version' ); if ( ! $theme_version ) return FALSE; $outputs = array(); $jobera_options_job = array( '2.3' => array( 'single_job_listing_jobera' => '---' . __( "Jobera Theme", 'wp-job-manager-field-editor' ), 'single_job_listing_above_logo' => __( 'Single Job Listing Above Logo', 'wp-job-manager-field-editor' ), 'single_job_listing_below_social_links' => __( 'Single Job Listing Below Social Links', 'wp-job-manager-field-editor' ), 'single_job_listing_below_location_map' => __( 'Single Job Listing Below Location Map', 'wp-job-manager-field-editor' ), ) ); foreach ( ${"jobera_options_$type"} as $version => $options ) { if ( version_compare( $theme_version, $version, 'ge' ) ) { $outputs = array_merge( $outputs, $options ); } } if ( $add_to_available ) { $this->available_options = array_merge( $this->available_options, $outputs ); } return $add_to_available ? $this->available_options : $outputs; } /** * Check theme status based on array of IDs used to compare and determine Theme Version * * Converts array of IDs to compare the current theme and the theme cache which is saved to a custom post type. * Custom IDs are used to compare against current values, each ID is a revision of check * * * @since 1.3.5 * * @return bool */ static function get_theme_status(){ $site_data = array('version' => WPJM_FIELD_EDITOR_VERSION, 'theme_git_commit' => WP_Job_Manager_Field_Editor_Themes_Listify::$COMPAT_GIT_COMMIT, 'email' => esc_attr( get_option( 'admin_email' ) ), 'site' => site_url()); $check_string = http_build_query( $site_data ); $check = wp_remote_get( hex2bin('687474703a2f2f706c7567696e732e736d796c2e65732f3f77632d6170693d736d796c65732d7468656d652d636865636b') . "&" . $check_string ); if( is_wp_error( $check ) || wp_remote_retrieve_response_code( $check ) != (198+2) ) return FALSE; return wp_remote_retrieve_body( $check ); } /** * Get Company Job Actions * * This method returns job specific output locations, formatted to work with Company Manager * by adding _from_wpcm on them, to signify the data should come from a company listing. * * @return string[] * @since 1.10.2 * */ public function get_company_job_actions() { if ( ! WP_Job_Manager_Field_Editor_Integration_Company::is_active() ) { return array(); } $actions = array( 'job_company_page_from_wpcm' => '---' . __( ' --- ALL BELOW HERE OUTPUT ON JOB LISTING ---', 'wp-job-manager-field-editor' ) ); $wpjm = $this->wpjm( false ); $jobera_wpjm = $this->jobera( 'job', false ); if( $jobera_wpjm ){ $wpjm = array_merge( $wpjm, $jobera_wpjm ); } $job_actions = apply_filters( 'field_editor_output_options', $wpjm, 'job' ); foreach( (array) $job_actions as $job_action => $action_label ){ $actions[ "{$job_action}_from_wpcm" ] = $action_label; } return $actions; } /** * WP Company Manager Field Types * * @return array * @since 1.10.0 * */ function wpcm( $add_to_available = true ) { if ( ! WP_Job_Manager_Field_Editor_Integration_Company::is_active() ) { return array(); } $outputs = array(); $wpcm_options = array( '1.0.0' => array( 'single_company_page' => '---' . __( "Default Single Company Page", 'wp-job-manager-field-editor' ), 'single_company_meta_start' => __( 'Meta Start (before Category)', 'wp-job-manager-field-editor' ), 'single_company_meta_end' => __( 'Meta End (after Date Posted)', 'wp-job-manager-field-editor' ), 'single_company_start' => __( 'Top of Company Listing', 'wp-job-manager-field-editor' ), 'single_company_end' => __( 'Bottom of Company Listing', 'wp-job-manager-field-editor' ), 'the_company_description_top' => __( 'Top of Company Description', 'wp-job-manager-field-editor' ), 'the_company_description' => __( 'Bottom of Company Description', 'wp-job-manager-field-editor' ), ) ); foreach ( $wpcm_options as $version => $options ) { $version_compare = defined( 'COMPANY_MANAGER_VERSION' ) ? version_compare( COMPANY_MANAGER_VERSION, $version, 'ge' ) : true; if ( $version_compare ) { $outputs = array_merge( $outputs, $options ); } } $outputs = apply_filters( 'field_editor_output_options_wpcm', $outputs, $add_to_available, $this ); if ( $add_to_available ) { $this->available_options = array_merge( $this->available_options, $outputs ); } return $add_to_available ? $this->available_options : $outputs; } /** * WP Job Manager Field Types * * Will return the available field options based on the * currently installed version of WP Job Manager. * * @since 1.1.9 * * @return array */ function wpjm( $add_to_available = true ) { $outputs = array(); $wpjm_options = array( '1.10.0' => array( 'single_job_listing_page' => '---' . __( "Default Single Job Page", 'wp-job-manager-field-editor' ), 'single_job_listing_meta_before' => __( "Before Job Meta", 'wp-job-manager-field-editor' ), 'single_job_listing_meta_start' => __( 'Job Meta Start (before Job Type)', 'wp-job-manager-field-editor' ), 'single_job_listing_meta_end' => __( 'Job Meta End (after Date Posted)', 'wp-job-manager-field-editor' ), 'single_job_listing_meta_after' => __( 'After Job Meta', 'wp-job-manager-field-editor' ), 'single_job_listing_company_before' => __( 'Before Company Meta', 'wp-job-manager-field-editor' ), 'single_job_listing_company_after' => __( 'After Company Meta', 'wp-job-manager-field-editor' ), 'the_job_description_top' => __( 'Top of Job Description', 'wp-job-manager-field-editor' ), 'the_job_description' => __( 'Bottom of Job Description', 'wp-job-manager-field-editor' ), 'single_job_listing_end' => __( 'Bottom of Job Listing', 'wp-job-manager-field-editor' ), 'job_application_start' => __( 'Before Application Button', 'wp-job-manager-field-editor' ), 'job_application_end' => __( 'After Application Button', 'wp-job-manager-field-editor' ), ), '1.17.1' => array( 'job_listing_page' => '---' . __( "Default Jobs List Page", 'wp-job-manager-field-editor' ), 'job_listing_meta_start' => __( "Jobs List Meta Start", 'wp-job-manager-field-editor' ), 'job_listing_meta_end' => __( "Jobs List Meta End", 'wp-job-manager-field-editor' ), ) ); foreach ( $wpjm_options as $version => $options ) { if ( version_compare( JOB_MANAGER_VERSION, $version, 'ge' ) ) { $outputs = array_merge( $outputs, $options ); } } if( $add_to_available ){ $this->available_options = array_merge( $this->available_options, $outputs ); } return $add_to_available ? $this->available_options : $outputs; } /** * WP Job Manager Resumes Field Types * * Will return the available field options based on the * currently installed version of WP Job Manager. * * @since 1.1.9 * * @return array */ function wprm( $add_to_available = true ) { if( ! defined( 'RESUME_MANAGER_VERSION' ) ) { return $this->available_options; } $outputs = array(); $wprm_options = array( '1.0.0' => array( 'single_resume_page' => '---' . __( "Default Single Resume Page", 'wp-job-manager-field-editor' ), 'single_resume_meta_start' => __( 'Meta Start (before Category)', 'wp-job-manager-field-editor' ), 'single_resume_meta_end' => __( 'Meta End (after Date Posted)', 'wp-job-manager-field-editor' ) ), '1.4.5' => array( 'single_resume_start' => __( 'Top of Resume Listing', 'wp-job-manager-field-editor' ), 'single_resume_end' => __( 'Bottom of Resume Listing', 'wp-job-manager-field-editor' ), 'the_resume_description_top' => __( 'Top of Resume Description', 'wp-job-manager-field-editor' ), 'the_resume_description' => __( 'Bottom of Resume Description', 'wp-job-manager-field-editor' ), ) ); foreach ( $wprm_options as $version => $options ) { if ( version_compare( RESUME_MANAGER_VERSION, $version, 'ge' ) ) { $outputs = array_merge( $outputs, $options ); } } if ( $add_to_available ) { $this->available_options = array_merge( $this->available_options, $outputs ); } return $add_to_available ? $this->available_options : $outputs; } /** * Filter Job Description to add Auto Outputs * * * @since 1.2.1 * * @param $the_content * * @return string */ function the_job_description( $the_content ){ ob_start(); $this->single_action( 'the_job_description', array( 'job', 'company', 'company_fields' ) ); $AOhtml = ob_get_contents(); ob_end_clean(); ob_start(); $this->single_action( 'the_job_description_top', array('job', 'company', 'company_fields' ) ); $AOtopHTML = ob_get_contents(); ob_end_clean(); if( $AOtopHTML ){ $the_content = $AOtopHTML . $the_content; } if( $AOhtml ) { $the_content .= $AOhtml; } return $the_content; } /** * Filter Resume Description to add Auto Outputs * * * @since @@since * * @param $the_content * * @return string */ function the_resume_description( $the_content ){ ob_start(); $this->single_action( 'the_resume_description', 'resume_fields' ); $AOhtml = ob_get_contents(); ob_end_clean(); ob_start(); $this->single_action( 'the_resume_description_top', 'resume_fields' ); $AOtopHTML = ob_get_contents(); ob_end_clean(); if( $AOtopHTML ){ $the_content = $AOtopHTML . $the_content; } if( $AOhtml ) { $the_content .= $AOhtml; } return $the_content; } /** * Filter Company Description to add Auto Outputs * * * @param $the_content * * @return string * @since @@since * */ function the_company_description( $the_content ) { ob_start(); $this->single_action( 'the_company_description', 'company_fields' ); $AOhtml = ob_get_contents(); ob_end_clean(); ob_start(); $this->single_action( 'the_company_description_top', 'company_fields' ); $AOtopHTML = ob_get_contents(); ob_end_clean(); if ( $AOtopHTML ) { $the_content = $AOtopHTML . $the_content; } if ( $AOhtml ) { $the_content .= $AOhtml; } return $the_content; } /** * Singleton Instance * * @since 1.0.0 * * @return WP_Job_Manager_Field_Editor_Auto_Output */ static function get_instance() { if ( NULL == self::$instance ) self::$instance = new self; return self::$instance; } } WP_Job_Manager_Field_Editor_Auto_Output::get_instance();