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<?php |
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/** |
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* Plugin Name: Gravity Forms: Multiple Form Instances |
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* Description: Allows multiple instances of the same form to be run on a single page when using AJAX. |
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* Author: tyxla |
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* Author URI: http://marinatanasov.com/ |
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* Plugin URI: https://github.com/tyxla/Gravity-Forms-Multiple-Form-Instances |
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* Version: 1.1.2 |
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* License: GPL2 |
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* Requires at least: 3.0.1 |
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* Tested up to: 4.5 |
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*/ |
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/** |
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* The main plugin class. |
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*/ |
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class Gravity_Forms_Multiple_Form_Instances { |
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/** |
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* Constructor. |
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* |
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* Used to initialize the plugin and hook the related functionality. |
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* |
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* @access public |
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*/ |
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public function __construct() { |
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// hook the HTML ID string find & replace functionality |
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add_filter( 'gform_get_form_filter', array( $this, 'gform_get_form_filter' ), 10, 2 ); |
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add_filter( 'gform_confirmation', array( $this, 'gform_get_form_filter' ), 10, 2 ); |
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} |
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/** |
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* Replaces all occurences of the form ID with a new, unique ID. |
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* |
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* This is where the magic happens. |
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* |
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* @access public |
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* |
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* @param string $form_string The form HTML string. |
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* @param array $form Array with the form settings. |
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* @return string $form_string The modified form HTML string. |
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*/ |
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public function gform_get_form_filter( $form_string, $form ) { |
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// if form has been submitted, use the submitted ID, otherwise generate a new unique ID |
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if ( isset( $_POST['gform_random_id'] ) ) { |
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$random_id = absint( $_POST['gform_random_id'] ); // Input var okay. |
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} else { |
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$random_id = mt_rand(); |
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} |
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// this is where we keep our unique ID |
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$hidden_field = "<input type='hidden' name='gform_field_values'"; |
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// define all occurences of the original form ID that wont hurt the form input |
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$strings = array( |
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' gform_wrapper' => ' gform_wrapper gform_wrapper_original_id_' . $form['id'], |
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"for='choice_" => "for='choice_" . $random_id . '_', |
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"id='label_" => "id='label_" . $random_id . '_', |
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"'gform_wrapper_" . $form['id'] . "'" => "'gform_wrapper_" . $random_id . "'", |
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"'gf_" . $form['id'] . "'" => "'gf_" . $random_id . "'", |
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"'gform_" . $form['id'] . "'" => "'gform_" . $random_id . "'", |
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"'gform_ajax_frame_" . $form['id'] . "'" => "'gform_ajax_frame_" . $random_id . "'", |
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'#gf_' . $form['id'] . "'" => '#gf_' . $random_id . "'", |
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"'gform_fields_" . $form['id'] . "'" => "'gform_fields_" . $random_id . "'", |
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"id='field_" . $form['id'] . '_' => "id='field_" . $random_id . '_', |
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"for='input_" . $form['id'] . '_' => "for='input_" . $random_id . '_', |
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"id='input_" . $form['id'] . '_' => "id='input_" . $random_id . '_', |
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"id='choice_" . $form['id'] . '_' => "id='choice_" . $random_id . '_', |
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"'gform_submit_button_" . $form['id'] . "'" => "'gform_submit_button_" . $random_id . "'", |
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'"gf_submitting_' . $form['id'] . '"' => '"gf_submitting_' . $random_id . '"', |
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"'gf_submitting_" . $form['id'] . "'" => "'gf_submitting_" . $random_id . "'", |
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'#gform_ajax_frame_' . $form['id'] => '#gform_ajax_frame_' . $random_id, |
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'#gform_wrapper_' . $form['id'] => '#gform_wrapper_' . $random_id, |
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'#gform_' . $form['id'] => '#gform_' . $random_id, |
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"trigger('gform_post_render', [" . $form['id'] => "trigger('gform_post_render', [" . $random_id, |
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'gformInitSpinner( ' . $form['id'] . ',' => 'gformInitSpinner( ' . $random_id . ',', |
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"trigger('gform_page_loaded', [" . $form['id'] => "trigger('gform_page_loaded', [" . $random_id, |
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"'gform_confirmation_loaded', [" . $form['id'] . ']' => "'gform_confirmation_loaded', [" . $random_id . ']', |
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'gf_apply_rules(' . $form['id'] . ',' => 'gf_apply_rules(' . $random_id . ',', |
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'gform_confirmation_wrapper_' . $form['id'] => 'gform_confirmation_wrapper_' . $random_id, |
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'gforms_confirmation_message_' . $form['id'] => 'gforms_confirmation_message_' . $random_id, |
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'gform_confirmation_message_' . $form['id'] => 'gform_confirmation_message_' . $random_id, |
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'if(formId == ' . $form['id'] . ')' => 'if(formId == ' . $random_id . ')', |
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"window['gf_form_conditional_logic'][" . $form['id'] . ']' => "window['gf_form_conditional_logic'][" . $random_id . ']', |
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"trigger('gform_post_conditional_logic', [" . $form['id'] . ',' => "trigger('gform_post_conditional_logic', [" . $random_id . ',', |
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'gformShowPasswordStrength("input_' . $form['id'] . '_' => 'gformShowPasswordStrength("input_' . $random_id . '_', |
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"gformInitChosenFields('#input_" . $form['id'] . '_' => "gformInitChosenFields('#input_" . $random_id . '_', |
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"jQuery('#input_" . $form['id'] . '_' => "jQuery('#input_" . $random_id . '_', |
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'gforms_calendar_icon_input_' . $form['id'] . '_' => 'gforms_calendar_icon_input_' . $random_id . '_', |
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"id='ginput_base_price_" . $form['id'] . '_' => "id='ginput_base_price_" . $random_id . '_', |
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"id='ginput_quantity_" . $form['id'] . '_' => "id='ginput_quantity_" . $random_id . '_', |
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'gfield_price_' . $form['id'] . '_' => 'gfield_price_' . $random_id . '_', |
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'gfield_quantity_' . $form['id'] . '_' => 'gfield_quantity_' . $random_id . '_', |
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'gfield_product_' . $form['id'] . '_' => 'gfield_product_' . $random_id . '_', |
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'ginput_total_' . $form['id'] => 'ginput_total_' . $random_id, |
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'GFCalc(' . $form['id'] . ',' => 'GFCalc(' . $random_id . ',', |
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'gf_global["number_formats"][' . $form['id'] . ']' => 'gf_global["number_formats"][' . $random_id . ']', |
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'gform_next_button_' . $form['id'] . '_' => 'gform_next_button_' . $random_id . '_', |
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$hidden_field => "<input type='hidden' name='gform_random_id' value='" . $random_id . "' />" . $hidden_field, |
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); |
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// allow addons & plugins to add additional find & replace strings |
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$strings = apply_filters( 'gform_multiple_instances_strings', $strings, $form['id'], $random_id ); |
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// replace all occurences with the new unique ID |
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foreach ( $strings as $find => $replace ) { |
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$form_string = str_replace( $find, $replace, $form_string ); |
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} |
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return $form_string; |
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} |
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} |
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// initialize the plugin |
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global $gravity_forms_multiple_form_instances; |
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$gravity_forms_multiple_form_instances = new Gravity_Forms_Multiple_Form_Instances(); |
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