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<?php |
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/** |
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* Plugin Name: Gravity Pre-submission Confirmation |
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* Plugin URI: http://github.com/patilswapnilv/pre-submission-confirmation/ |
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* Description: Adds a quick pre-submission confirmation page to your Graviy forms where users can preview their entered data before it is submitted. |
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* Author: patilswapnilv |
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* Version: 1.0.1 |
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* Author URI: http://swapnilpatil.in |
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* Domain Path: /languages/ |
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* |
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* Please read: <a href="https://wordpress.org/plugins/gravity-pre-submission-confirmation/installation/">Installation</a> |
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* and <a href="https://wordpress.org/plugins/gravity-pre-submission-confirmation/faq/">FAQ</a>. |
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* |
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* PHP version 5 |
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* |
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* LICENCE: GNU GENERAL PUBLIC LICENSE |
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* Version 3, 29 June 2007 |
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* Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/> |
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* Everyone is permitted to copy and distribute verbatim copies |
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* of this license document, but changing it is not allowed. |
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* |
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* Main file, contains the plugin metadata and activation processes |
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* |
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* @category Core |
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* @package gravity-pre-submission-confirmation |
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* @author Swapnil V. Patil <[email protected]> |
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* @license GPL-3.0+ https://www.gnu.org/licenses/gpl-3.0.en.html |
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* @version 1.0.0 |
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* @link https://github.com/patilswapnilv/gravity-pre-submission-confirmation |
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*/ |
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class GFPreviewConfirmation { |
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private static $lead; |
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public static function init() { |
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add_filter( 'gform_pre_render', array( __class__, 'replace_merge_tags' ) ); |
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} |
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public static function replace_merge_tags( $form ) { |
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$current_page = isset(GFFormDisplay::$submission[$form['id']]) ? GFFormDisplay::$submission[$form['id']]['page_number'] : 1; |
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$fields = array(); |
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// get all HTML fields on the current page |
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foreach($form['fields'] as &$field) { |
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// skip all fields on the first page |
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if(rgar($field, 'pageNumber') <= 1) |
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continue; |
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$default_value = rgar($field, 'defaultValue'); |
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preg_match_all('/{.+}/', $default_value, $matches, PREG_SET_ORDER); |
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if(!empty($matches)) { |
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// if default value needs to be replaced but is not on current page, wait until on the current page to replace it |
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if(rgar($field, 'pageNumber') != $current_page) { |
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$field['defaultValue'] = ''; |
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} else { |
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$field['defaultValue'] = self::preview_replace_variables($default_value, $form); |
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} |
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} |
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// only run 'content' filter for fields on the current page |
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if(rgar($field, 'pageNumber') != $current_page) |
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continue; |
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$html_content = rgar($field, 'content'); |
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preg_match_all('/{.+}/', $html_content, $matches, PREG_SET_ORDER); |
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if(!empty($matches)) { |
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$field['content'] = self::preview_replace_variables($html_content, $form); |
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} |
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} |
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return $form; |
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} |
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/** |
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* Adds special support for file upload, post image and multi input merge tags. |
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*/ |
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public static function preview_special_merge_tags($value, $input_id, $merge_tag, $field) { |
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// added to prevent overriding :noadmin filter (and other filters that remove fields) |
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if( ! $value ) |
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return $value; |
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$input_type = RGFormsModel::get_input_type($field); |
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$is_upload_field = in_array( $input_type, array('post_image', 'fileupload') ); |
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$is_multi_input = is_array( rgar($field, 'inputs') ); |
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$is_input = intval( $input_id ) != $input_id; |
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if( !$is_upload_field && !$is_multi_input ) |
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return $value; |
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// if is individual input of multi-input field, return just that input value |
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if(!$is_input ) |
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return $value; |
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$form = RGFormsModel::get_form_meta($field['formId']); |
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$lead = self::create_lead($form); |
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$currency = GFCommon::get_currency(); |
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if(is_array(rgar($field, 'inputs'))) { |
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$value = RGFormsModel::get_lead_field_value($lead, $field); |
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return GFCommon::get_lead_field_display($field, $value, $currency); |
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} |
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switch($input_type) { |
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case 'fileupload': |
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$value = self::preview_image_value("input_{$field['id']}", $field, $form, $lead); |
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$value = self::preview_image_display($field, $form, $value); |
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break; |
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default: |
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$value = self::preview_image_value("input_{$field['id']}", $field, $form, $lead); |
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$value = GFCommon::get_lead_field_display($field, $value, $currency); |
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break; |
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} |
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return $value; |
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} |
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public static function preview_image_value($input_name, $field, $form, $lead) { |
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$field_id = $field['id']; |
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$file_info = RGFormsModel::get_temp_filename($form['id'], $input_name); |
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$source = RGFormsModel::get_upload_url($form['id']) . "/tmp/" . $file_info["temp_filename"]; |
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if(!$file_info) |
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return ''; |
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switch(RGFormsModel::get_input_type($field)){ |
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case "post_image": |
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list(,$image_title, $image_caption, $image_description) = explode("|:|", $lead[$field['id']]); |
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$value = !empty($source) ? $source . "|:|" . $image_title . "|:|" . $image_caption . "|:|" . $image_description : ""; |
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break; |
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case "fileupload" : |
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$value = $source; |
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break; |
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} |
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return $value; |
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} |
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public static function preview_image_display($field, $form, $value) { |
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// need to get the tmp $file_info to retrieve real uploaded filename, otherwise will display ugly tmp name |
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$input_name = "input_" . str_replace('.', '_', $field['id']); |
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$file_info = RGFormsModel::get_temp_filename($form['id'], $input_name); |
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$file_path = $value; |
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if(!empty($file_path)){ |
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$file_path = esc_attr(str_replace(" ", "%20", $file_path)); |
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$value = "<a href='$file_path' target='_blank' title='" . __("Click to view", "gravityforms") . "'>" . $file_info['uploaded_filename'] . "</a>"; |
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} |
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return $value; |
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} |
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/** |
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* Retrieves $lead object from class if it has already been created; otherwise creates a new $lead object. |
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*/ |
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public static function create_lead( $form ) { |
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if( empty( self::$lead ) ) { |
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self::$lead = GFFormsModel::create_lead( $form ); |
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self::clear_field_value_cache( $form ); |
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} |
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return self::$lead; |
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} |
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public static function preview_replace_variables( $content, $form ) { |
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$lead = self::create_lead($form); |
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// add filter that will handle getting temporary URLs for file uploads and post image fields (removed below) |
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// beware, the RGFormsModel::create_lead() function also triggers the gform_merge_tag_filter at some point and will |
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// result in an infinite loop if not called first above |
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add_filter('gform_merge_tag_filter', array('GFPreviewConfirmation', 'preview_special_merge_tags'), 10, 4); |
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$content = GFCommon::replace_variables($content, $form, $lead, false, false, false); |
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// remove filter so this function is not applied after preview functionality is complete |
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remove_filter('gform_merge_tag_filter', array('GFPreviewConfirmation', 'preview_special_merge_tags')); |
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return $content; |
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} |
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public static function clear_field_value_cache( $form ) { |
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if( ! class_exists( 'GFCache' ) ) |
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return; |
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foreach( $form['fields'] as &$field ) { |
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if( GFFormsModel::get_input_type( $field ) == 'total' ) |
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GFCache::delete( 'GFFormsModel::get_lead_field_value__' . $field['id'] ); |
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} |
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} |
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} |
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GFPreviewConfirmation::init(); |
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patilswapnilv /
Gravity-Pre-submission-Confirmation
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