name = 'flexible_content'; $this->label = __("Flexible Content",'acf'); $this->category = 'layout'; $this->defaults = array( 'layouts' => array(), 'min' => '', 'max' => '', 'button_label' => __("Add Row",'acf'), ); // ajax $this->add_action('wp_ajax_acf/fields/flexible_content/layout_title', array($this, 'ajax_layout_title')); $this->add_action('wp_ajax_nopriv_acf/fields/flexible_content/layout_title', array($this, 'ajax_layout_title')); // filters $this->add_filter('acf/prepare_field_for_export', array($this, 'prepare_any_field_for_export')); $this->add_filter('acf/clone_field', array($this, 'clone_any_field'), 10, 2); $this->add_filter('acf/validate_field', array($this, 'validate_any_field')); // field filters $this->add_field_filter('acf/get_sub_field', array($this, 'get_sub_field'), 10, 3); $this->add_field_filter('acf/prepare_field_for_export', array($this, 'prepare_field_for_export')); $this->add_field_filter('acf/prepare_field_for_import', array($this, 'prepare_field_for_import')); } /* * input_admin_enqueue_scripts * * description * * @type function * @date 16/12/2015 * @since 5.3.2 * * @param $post_id (int) * @return $post_id (int) */ function input_admin_enqueue_scripts() { // localize acf_localize_text(array( // identifiers 'layout' => __('layout', 'acf'), 'layouts' => __('layouts', 'acf'), // min / max 'This field requires at least {min} {label} {identifier}' => __('This field requires at least {min} {label} {identifier}', 'acf'), 'This field has a limit of {max} {label} {identifier}' => __('This field has a limit of {max} {label} {identifier}', 'acf'), // popup badge '{available} {label} {identifier} available (max {max})' => __('{available} {label} {identifier} available (max {max})', 'acf'), '{required} {label} {identifier} required (min {min})' => __('{required} {label} {identifier} required (min {min})', 'acf'), // field settings 'Flexible Content requires at least 1 layout' => __('Flexible Content requires at least 1 layout', 'acf') )); } /* * get_valid_layout * * This function will fill in the missing keys to create a valid layout * * @type function * @date 3/10/13 * @since 1.1.0 * * @param $layout (array) * @return $layout (array) */ function get_valid_layout( $layout = array() ) { // parse $layout = wp_parse_args($layout, array( 'key' => uniqid(), 'name' => '', 'label' => '', 'display' => 'block', 'sub_fields' => array(), 'min' => '', 'max' => '', )); // return return $layout; } /* * load_field() * * This filter is appied to the $field after it is loaded from the database * * @type filter * @since 3.6 * @date 23/01/13 * * @param $field - the field array holding all the field options * * @return $field - the field array holding all the field options */ function load_field( $field ) { // bail early if no field layouts if( empty($field['layouts']) ) { return $field; } // vars $sub_fields = acf_get_fields($field); // loop through layouts, sub fields and swap out the field key with the real field foreach( array_keys($field['layouts']) as $i ) { // extract layout $layout = acf_extract_var( $field['layouts'], $i ); // validate layout $layout = $this->get_valid_layout( $layout ); // append sub fields if( !empty($sub_fields) ) { foreach( array_keys($sub_fields) as $k ) { // check if 'parent_layout' is empty if( empty($sub_fields[ $k ]['parent_layout']) ) { // parent_layout did not save for this field, default it to first layout $sub_fields[ $k ]['parent_layout'] = $layout['key']; } // append sub field to layout, if( $sub_fields[ $k ]['parent_layout'] == $layout['key'] ) { $layout['sub_fields'][] = acf_extract_var( $sub_fields, $k ); } } } // append back to layouts $field['layouts'][ $i ] = $layout; } // return return $field; } /* * get_sub_field * * This function will return a specific sub field * * @type function * @date 29/09/2016 * @since 5.4.0 * * @param $sub_field * @param $selector (string) * @param $field (array) * @return $post_id (int) */ function get_sub_field( $sub_field, $selector, $field ) { // bail early if no layouts if( empty($field['layouts']) ) return false; // vars $active = get_row_layout(); // loop foreach( $field['layouts'] as $layout ) { // bail early if active layout does not match if( $active && $active !== $layout['name'] ) continue; // bail early if no sub fields if( empty($layout['sub_fields']) ) continue; // loop foreach( $layout['sub_fields'] as $sub_field ) { // check name and key if( $sub_field['name'] == $selector || $sub_field['key'] == $selector ) { // return return $sub_field; } } } // return return false; } /* * render_field() * * Create the HTML interface for your field * * @param $field - an array holding all the field's data * * @type action * @since 3.6 * @date 23/01/13 */ function render_field( $field ) { // defaults if( empty($field['button_label']) ) { $field['button_label'] = $this->defaults['button_label']; } // sort layouts into names $layouts = array(); foreach( $field['layouts'] as $k => $layout ) { $layouts[ $layout['name'] ] = $layout; } // vars $div = array( 'class' => 'acf-flexible-content', 'data-min' => $field['min'], 'data-max' => $field['max'] ); // empty if( empty($field['value']) ) { $div['class'] .= ' -empty'; } // no value message $no_value_message = __('Click the "%s" button below to start creating your layout','acf'); $no_value_message = apply_filters('acf/fields/flexible_content/no_value_message', $no_value_message, $field); ?>
> $field['name'] )); ?>
render_layout( $field, $layout, 'acfcloneindex', array() ); ?>
$value ): // validate if( empty($layouts[ $value['acf_fc_layout'] ]) ) continue; // render $this->render_layout( $field, $layouts[ $value['acf_fc_layout'] ], $i, $value ); endforeach; endif; ?>
'layout', 'data-id' => $i, 'data-layout' => $layout['name'] ); // clone if( is_numeric($i) ) { $order = $i + 1; } else { $div['class'] .= ' acf-clone'; } // display if( $layout['display'] == 'table' ) { $el = 'td'; } // title $title = $this->get_layout_title( $field, $layout, $i, $value ); // remove row reset_rows(); ?>
> $prefix.'[acf_fc_layout]', 'value' => $layout['name'] )); ?>
>

get_valid_layout( $layout ); // vars $layout_prefix = "{$field['prefix']}[layouts][{$layout['key']}]"; ?> acf_idify( $layout_prefix . '[key]' ), 'name' => $layout_prefix . '[key]', 'class' => 'layout-key', 'value' => $layout['key'] )); ?> $layout['sub_fields'], 'parent' => $field['ID'] ); acf_get_view('field-group-fields', $args); ?> __('Button Label','acf'), 'instructions' => '', 'type' => 'text', 'name' => 'button_label', )); // min acf_render_field_setting( $field, array( 'label' => __('Minimum Layouts','acf'), 'instructions' => '', 'type' => 'number', 'name' => 'min', )); // max acf_render_field_setting( $field, array( 'label' => __('Maximum Layouts','acf'), 'instructions' => '', 'type' => 'number', 'name' => 'max', )); } /* * load_value() * * This filter is applied to the $value after it is loaded from the db * * @type filter * @since 3.6 * @date 23/01/13 * * @param $value (mixed) the value found in the database * @param $post_id (mixed) the $post_id from which the value was loaded * @param $field (array) the field array holding all the field options * @return $value */ function load_value( $value, $post_id, $field ) { // bail early if no value if( empty($value) || empty($field['layouts']) ) { return $value; } // value must be an array $value = acf_get_array( $value ); // vars $rows = array(); // sort layouts into names $layouts = array(); foreach( $field['layouts'] as $k => $layout ) { $layouts[ $layout['name'] ] = $layout['sub_fields']; } // loop through rows foreach( $value as $i => $l ) { // append to $values $rows[ $i ] = array(); $rows[ $i ]['acf_fc_layout'] = $l; // bail early if layout deosnt contain sub fields if( empty($layouts[ $l ]) ) { continue; } // get layout $layout = $layouts[ $l ]; // loop through sub fields foreach( array_keys($layout) as $j ) { // get sub field $sub_field = $layout[ $j ]; // bail ealry if no name (tab) if( acf_is_empty($sub_field['name']) ) continue; // update full name $sub_field['name'] = "{$field['name']}_{$i}_{$sub_field['name']}"; // get value $sub_value = acf_get_value( $post_id, $sub_field ); // add value $rows[ $i ][ $sub_field['key'] ] = $sub_value; } // foreach } // foreach // return return $rows; } /* * format_value() * * This filter is appied to the $value after it is loaded from the db and before it is returned to the template * * @type filter * @since 3.6 * @date 23/01/13 * * @param $value (mixed) the value which was loaded from the database * @param $post_id (mixed) the $post_id from which the value was loaded * @param $field (array) the field array holding all the field options * * @return $value (mixed) the modified value */ function format_value( $value, $post_id, $field ) { // bail early if no value if( empty($value) || empty($field['layouts']) ) { return false; } // sort layouts into names $layouts = array(); foreach( $field['layouts'] as $k => $layout ) { $layouts[ $layout['name'] ] = $layout['sub_fields']; } // loop over rows foreach( array_keys($value) as $i ) { // get layout name $l = $value[ $i ]['acf_fc_layout']; // bail early if layout deosnt exist if( empty($layouts[ $l ]) ) continue; // get layout $layout = $layouts[ $l ]; // loop through sub fields foreach( array_keys($layout) as $j ) { // get sub field $sub_field = $layout[ $j ]; // bail ealry if no name (tab) if( acf_is_empty($sub_field['name']) ) continue; // extract value $sub_value = acf_extract_var( $value[ $i ], $sub_field['key'] ); // update $sub_field name $sub_field['name'] = "{$field['name']}_{$i}_{$sub_field['name']}"; // format value $sub_value = acf_format_value( $sub_value, $post_id, $sub_field ); // append to $row $value[ $i ][ $sub_field['_name'] ] = $sub_value; } } // return return $value; } /* * validate_value * * description * * @type function * @date 11/02/2014 * @since 5.0.0 * * @param $post_id (int) * @return $post_id (int) */ function validate_value( $valid, $value, $field, $input ){ // vars $count = 0; // check if is value (may be empty string) if( is_array($value) ) { // remove acfcloneindex if( isset($value['acfcloneindex']) ) { unset($value['acfcloneindex']); } // count $count = count($value); } // validate required if( $field['required'] && !$count ) { $valid = false; } // validate min $min = (int) $field['min']; if( $min && $count < $min ) { // vars $error = __('This field requires at least {min} {label} {identifier}', 'acf'); $identifier = _n('layout', 'layouts', $min); // replace $error = str_replace('{min}', $min, $error); $error = str_replace('{label}', '', $error); $error = str_replace('{identifier}', $identifier, $error); // return return $error; } // find layouts $layouts = array(); foreach( array_keys($field['layouts']) as $i ) { // vars $layout = $field['layouts'][ $i ]; // add count $layout['count'] = 0; // append $layouts[ $layout['name'] ] = $layout; } // validate value if( $count ) { // loop rows foreach( $value as $i => $row ) { // get layout $l = $row['acf_fc_layout']; // bail if layout doesn't exist if( !isset($layouts[ $l ]) ) { continue; } // increase count $layouts[ $l ]['count']++; // bail if no sub fields if( empty($layouts[ $l ]['sub_fields']) ) { continue; } // loop sub fields foreach( $layouts[ $l ]['sub_fields'] as $sub_field ) { // get sub field key $k = $sub_field['key']; // bail if no value if( !isset($value[ $i ][ $k ]) ) { continue; } // validate acf_validate_value( $value[ $i ][ $k ], $sub_field, "{$input}[{$i}][{$k}]" ); } // end loop sub fields } // end loop rows } // validate layouts foreach( $layouts as $layout ) { // validate min / max $min = (int) $layout['min']; $count = $layout['count']; $label = $layout['label']; if( $min && $count < $min ) { // vars $error = __('This field requires at least {min} {label} {identifier}', 'acf'); $identifier = _n('layout', 'layouts', $min); // replace $error = str_replace('{min}', $min, $error); $error = str_replace('{label}', '"' . $label . '"', $error); $error = str_replace('{identifier}', $identifier, $error); // return return $error; } } // return return $valid; } /* * get_layout * * This function will return a specific layout by name from a field * * @type function * @date 15/2/17 * @since 5.5.8 * * @param $name (string) * @param $field (array) * @return (array) */ function get_layout( $name = '', $field ) { // bail early if no layouts if( !isset($field['layouts']) ) return false; // loop foreach( $field['layouts'] as $layout ) { // match if( $layout['name'] === $name ) return $layout; } // return return false; } /* * delete_row * * This function will delete a value row * * @type function * @date 15/2/17 * @since 5.5.8 * * @param $i (int) * @param $field (array) * @param $post_id (mixed) * @return (boolean) */ function delete_row( $i = 0, $field, $post_id ) { // vars $value = acf_get_metadata( $post_id, $field['name'] ); // bail early if no value if( !is_array($value) || !isset($value[ $i ]) ) return false; // get layout $layout = $this->get_layout($value[ $i ], $field); // bail early if no layout if( !$layout || empty($layout['sub_fields']) ) return false; // loop foreach( $layout['sub_fields'] as $sub_field ) { // modify name for delete $sub_field['name'] = "{$field['name']}_{$i}_{$sub_field['name']}"; // delete value acf_delete_value( $post_id, $sub_field ); } // return return true; } /* * update_row * * This function will update a value row * * @type function * @date 15/2/17 * @since 5.5.8 * * @param $i (int) * @param $field (array) * @param $post_id (mixed) * @return (boolean) */ function update_row( $row, $i = 0, $field, $post_id ) { // bail early if no layout reference if( !is_array($row) || !isset($row['acf_fc_layout']) ) return false; // get layout $layout = $this->get_layout($row['acf_fc_layout'], $field); // bail early if no layout if( !$layout || empty($layout['sub_fields']) ) return false; // loop foreach( $layout['sub_fields'] as $sub_field ) { // value $value = null; // find value (key) if( isset($row[ $sub_field['key'] ]) ) { $value = $row[ $sub_field['key'] ]; // find value (name) } elseif( isset($row[ $sub_field['name'] ]) ) { $value = $row[ $sub_field['name'] ]; // value does not exist } else { continue; } // modify name for save $sub_field['name'] = "{$field['name']}_{$i}_{$sub_field['name']}"; // update field acf_update_value( $value, $post_id, $sub_field ); } // return return true; } /* * update_value() * * This filter is appied to the $value before it is updated in the db * * @type filter * @since 3.6 * @date 23/01/13 * * @param $value - the value which will be saved in the database * @param $field - the field array holding all the field options * @param $post_id - the $post_id of which the value will be saved * * @return $value - the modified value */ function update_value( $value, $post_id, $field ) { // bail early if no layouts if( empty($field['layouts']) ) return $value; // vars $new_value = array(); $old_value = acf_get_metadata( $post_id, $field['name'] ); $old_value = is_array($old_value) ? $old_value : array(); // update if( !empty($value) ) { $i = -1; // remove acfcloneindex if( isset($value['acfcloneindex']) ) { unset($value['acfcloneindex']); } // loop through rows foreach( $value as $row ) { $i++; // bail early if no layout reference if( !is_array($row) || !isset($row['acf_fc_layout']) ) continue; // delete old row if layout has changed if( isset($old_value[ $i ]) && $old_value[ $i ] !== $row['acf_fc_layout'] ) { $this->delete_row( $i, $field, $post_id ); } // update row $this->update_row( $row, $i, $field, $post_id ); // append to order $new_value[] = $row['acf_fc_layout']; } } // vars $old_count = empty($old_value) ? 0 : count($old_value); $new_count = empty($new_value) ? 0 : count($new_value); // remove old rows if( $old_count > $new_count ) { // loop for( $i = $new_count; $i < $old_count; $i++ ) { $this->delete_row( $i, $field, $post_id ); } } // save false for empty value if( empty($new_value) ) $new_value = ''; // return return $new_value; } /* * delete_value * * description * * @type function * @date 1/07/2015 * @since 5.2.3 * * @param $post_id (int) * @return $post_id (int) */ function delete_value( $post_id, $key, $field ) { // vars $old_value = acf_get_metadata( $post_id, $field['name'] ); $old_value = is_array($old_value) ? $old_value : array(); // bail early if no rows or no sub fields if( empty($old_value) ) return; // loop foreach( array_keys($old_value) as $i ) { $this->delete_row( $i, $field, $post_id ); } } /* * update_field() * * This filter is appied to the $field before it is saved to the database * * @type filter * @since 3.6 * @date 23/01/13 * * @param $field - the field array holding all the field options * @param $post_id - the field group ID (post_type = acf) * * @return $field - the modified field */ function update_field( $field ) { // loop if( !empty($field['layouts']) ) { foreach( $field['layouts'] as &$layout ) { unset($layout['sub_fields']); } } // return return $field; } /* * delete_field * * description * * @type function * @date 4/04/2014 * @since 5.0.0 * * @param $post_id (int) * @return $post_id (int) */ function delete_field( $field ) { if( !empty($field['layouts']) ) { // loop through layouts foreach( $field['layouts'] as $layout ) { // loop through sub fields if( !empty($layout['sub_fields']) ) { foreach( $layout['sub_fields'] as $sub_field ) { acf_delete_field( $sub_field['ID'] ); } // foreach } // if } // foreach } // if } /* * duplicate_field() * * This filter is appied to the $field before it is duplicated and saved to the database * * @type filter * @since 3.6 * @date 23/01/13 * * @param $field - the field array holding all the field options * * @return $field - the modified field */ function duplicate_field( $field ) { // vars $sub_fields = array(); if( !empty($field['layouts']) ) { // loop through layouts foreach( $field['layouts'] as $layout ) { // extract sub fields $extra = acf_extract_var( $layout, 'sub_fields' ); // merge if( !empty($extra) ) { $sub_fields = array_merge($sub_fields, $extra); } } // foreach } // if // save field to get ID $field = acf_update_field( $field ); // duplicate sub fields acf_duplicate_fields( $sub_fields, $field['ID'] ); // return return $field; } /* * ajax_layout_title * * description * * @type function * @date 2/03/2016 * @since 5.3.2 * * @param $post_id (int) * @return $post_id (int) */ function ajax_layout_title() { // options $options = acf_parse_args( $_POST, array( 'post_id' => 0, 'i' => 0, 'field_key' => '', 'nonce' => '', 'layout' => '', 'value' => array() )); // load field $field = acf_get_field( $options['field_key'] ); if( !$field ) die(); // vars $layout = $this->get_layout( $options['layout'], $field ); if( !$layout ) die(); // title $title = $this->get_layout_title( $field, $layout, $options['i'], $options['value'] ); // echo echo $title; die; } function get_layout_title( $field, $layout, $i, $value ) { // vars $rows = array(); $rows[ $i ] = $value; // add loop acf_add_loop(array( 'selector' => $field['name'], 'name' => $field['name'], 'value' => $rows, 'field' => $field, 'i' => $i, 'post_id' => 0, )); // vars $title = $layout['label']; // filters $title = apply_filters('acf/fields/flexible_content/layout_title', $title, $field, $layout, $i); $title = apply_filters('acf/fields/flexible_content/layout_title/name='.$field['_name'], $title, $field, $layout, $i); $title = apply_filters('acf/fields/flexible_content/layout_title/key='.$field['key'], $title, $field, $layout, $i); // remove loop acf_remove_loop(); // prepend order $order = is_numeric($i) ? $i+1 : 0; $title = '' . $order . ' ' . $title; // return return $title; } /* * clone_any_field * * This function will update clone field settings based on the origional field * * @type function * @date 28/06/2016 * @since 5.3.8 * * @param $clone (array) * @param $field (array) * @return $clone */ function clone_any_field( $field, $clone_field ) { // remove parent_layout // - allows a sub field to be rendered as a normal field unset($field['parent_layout']); // attempt to merger parent_layout if( isset($clone_field['parent_layout']) ) { $field['parent_layout'] = $clone_field['parent_layout']; } // return return $field; } /* * prepare_field_for_export * * description * * @type function * @date 11/03/2014 * @since 5.0.0 * * @param $post_id (int) * @return $post_id (int) */ function prepare_field_for_export( $field ) { // loop if( !empty($field['layouts']) ) { foreach( $field['layouts'] as &$layout ) { $layout['sub_fields'] = acf_prepare_fields_for_export( $layout['sub_fields'] ); } } // return return $field; } function prepare_any_field_for_export( $field ) { // remove parent_layout unset( $field['parent_layout'] ); // return return $field; } /* * prepare_field_for_import * * description * * @type function * @date 11/03/2014 * @since 5.0.0 * * @param $post_id (int) * @return $post_id (int) */ function prepare_field_for_import( $field ) { // bail early if no layouts if( empty($field['layouts']) ) return $field; // var $extra = array(); // loop foreach( array_keys($field['layouts']) as $i ) { // extract layout $layout = acf_extract_var( $field['layouts'], $i ); // get valid layout (fixes ACF4 export code bug undefined index 'key') if( empty($layout['key']) ) $layout['key'] = uniqid(); // extract sub fields $sub_fields = acf_extract_var( $layout, 'sub_fields'); // validate sub fields if( !empty($sub_fields) ) { // loop over sub fields foreach( array_keys($sub_fields) as $j ) { // extract sub field $sub_field = acf_extract_var( $sub_fields, $j ); // attributes $sub_field['parent'] = $field['key']; $sub_field['parent_layout'] = $layout['key']; // append to extra $extra[] = $sub_field; } } // append to layout $field['layouts'][ $i ] = $layout; } // extra if( !empty($extra) ) { array_unshift($extra, $field); return $extra; } // return return $field; } /* * validate_any_field * * This function will add compatibility for the 'column_width' setting * * @type function * @date 30/1/17 * @since 5.5.6 * * @param $field (array) * @return $field */ function validate_any_field( $field ) { // width has changed if( isset($field['column_width']) ) { $field['wrapper']['width'] = acf_extract_var($field, 'column_width'); } // return return $field; } /* * translate_field * * This function will translate field settings * * @type function * @date 8/03/2016 * @since 5.3.2 * * @param $field (array) * @return $field */ function translate_field( $field ) { // translate $field['button_label'] = acf_translate( $field['button_label'] ); // loop if( !empty($field['layouts']) ) { foreach( $field['layouts'] as &$layout ) { $layout['label'] = acf_translate($layout['label']); } } // return return $field; } } // initialize acf_register_field_type( 'acf_field_flexible_content' ); endif; // class_exists check ?>