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<?php |
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/* |
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* Simple Payments lets users embed a PayPal button fully integrated with wpcom to sell products on the site. |
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* This is not a proper module yet, because not all the pieces are in place. Until everything is shipped, it can be turned |
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* into module that can be enabled/disabled. |
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*/ |
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class Jetpack_Simple_Payments { |
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// These have to be under 20 chars because that is CPT limit. |
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static $post_type_order = 'jp_pay_order'; |
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static $post_type_product = 'jp_pay_product'; |
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static $shortcode = 'simple-payment'; |
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static $css_classname_prefix = 'jetpack-simple-payments'; |
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// Classic singleton pattern: |
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private static $instance; |
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private function __construct() {} |
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static function getInstance() { |
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if ( ! self::$instance ) { |
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self::$instance = new self(); |
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self::$instance->register_init_hook(); |
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} |
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return self::$instance; |
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} |
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private function register_scripts() { |
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/** |
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* Paypal heavily discourages putting that script in your own server: |
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* @see https://developer.paypal.com/docs/integration/direct/express-checkout/integration-jsv4/add-paypal-button/ |
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*/ |
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wp_register_script( 'paypal-checkout-js', 'https://www.paypalobjects.com/api/checkout.js', array(), null, true ); |
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wp_register_script( 'paypal-express-checkout', plugins_url( '/paypal-express-checkout.js', __FILE__ ) , array( 'jquery', 'paypal-checkout-js' ), '0.21' ); |
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wp_enqueue_style( 'simple-payments', plugins_url( '/simple-payments.css', __FILE__ ) ); |
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} |
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private function register_init_hook() { |
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add_action( 'init', array( $this, 'init_hook_action' ) ); |
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} |
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private function register_shortcode() { |
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add_shortcode( self::$shortcode, array( $this, 'parse_shortcode' ) ); |
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} |
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public function init_hook_action() { |
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add_filter( 'rest_api_allowed_post_types', array( $this, 'allow_rest_api_types' ) ); |
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add_filter( 'jetpack_sync_post_meta_whitelist', array( $this, 'allow_sync_post_meta' ) ); |
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$this->register_scripts(); |
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$this->register_shortcode(); |
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$this->setup_cpts(); |
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add_filter( 'the_content', array( $this, 'remove_auto_paragraph_from_product_description' ), 0 ); |
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} |
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function remove_auto_paragraph_from_product_description( $content ) { |
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if ( get_post_type() === self::$post_type_product ) { |
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remove_filter( 'the_content', 'wpautop' ); |
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} |
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return $content; |
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} |
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function get_blog_id() { |
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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
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return get_current_blog_id(); |
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} |
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return Jetpack_Options::get_option( 'id' ); |
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} |
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function parse_shortcode( $attrs, $content = false ) { |
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if ( empty( $attrs['id'] ) ) { |
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return; |
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} |
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$product = get_post( $attrs['id'] ); |
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if ( ! $product || is_wp_error( $product ) ) { |
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return; |
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} |
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if ( $product->post_type !== self::$post_type_product ) { |
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return; |
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} |
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// We allow for overriding the presentation labels |
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$data = shortcode_atts( array( |
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'blog_id' => $this->get_blog_id(), |
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'dom_id' => uniqid( self::$css_classname_prefix . '-' . $product->ID . '_', true ), |
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'class' => self::$css_classname_prefix . '-' . $product->ID, |
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'title' => get_the_title( $product ), |
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'description' => $product->post_content, |
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'cta' => get_post_meta( $product->ID, 'spay_cta', true ), |
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'multiple' => get_post_meta( $product->ID, 'spay_multiple', true ) || '0' |
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), $attrs ); |
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$data['price'] = $this->format_price( |
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get_post_meta( $product->ID, 'spay_formatted_price', true ), |
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get_post_meta( $product->ID, 'spay_price', true ), |
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get_post_meta( $product->ID, 'spay_currency', true ), |
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$data |
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); |
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$data['id'] = $attrs['id']; |
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if ( ! wp_script_is( 'paypal-express-checkout', 'enqueued' ) ) { |
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wp_enqueue_script( 'paypal-express-checkout' ); |
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} |
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wp_add_inline_script( 'paypal-express-checkout', sprintf( |
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"try{PaypalExpressCheckout.renderButton( '%d', '%d', '%s', '%d' );}catch(e){}", |
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esc_js( $data['blog_id'] ), |
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esc_js( $attrs['id'] ), |
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esc_js( $data['dom_id'] ), |
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esc_js( $data['multiple'] ) |
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) ); |
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return $this->output_shortcode( $data ); |
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} |
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function output_shortcode( $data ) { |
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$items = ''; |
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$css_prefix = self::$css_classname_prefix; |
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if ( $data['multiple'] ) { |
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$items="<div class='${css_prefix}-items'> |
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<input class='${css_prefix}-items-number' type='number' value='1' min='1' id='{$data['dom_id']}_number' /> |
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</div>"; |
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} |
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$image = ""; |
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if( has_post_thumbnail( $data['id'] ) ) { |
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$image = "<div class='${css_prefix}-product-image'><div class='${css_prefix}-image'>" . get_the_post_thumbnail( $data['id'], 'full' ) . "</div></div>"; |
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} |
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return " |
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<div class='{$data['class']} ${css_prefix}-wrapper'> |
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<div class='${css_prefix}-purchase-message' id='{$data['dom_id']}-message-container'></div> |
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<div class='${css_prefix}-product'> |
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{$image} |
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<div class='${css_prefix}-details'> |
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<div class='${css_prefix}-title'><p>{$data['title']}</p></div> |
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<div class='${css_prefix}-description'><p>{$data['description']}</p></div> |
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<div class='${css_prefix}-price'><p>{$data['price']}</p></div> |
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<div class='${css_prefix}-purchase-box'> |
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{$items} |
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<div class='${css_prefix}-button' id='{$data['dom_id']}_button'></div> |
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</div> |
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</div> |
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</div> |
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</div> |
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"; |
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} |
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function format_price( $formatted_price, $price, $currency, $all_data ) { |
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if ( $formatted_price ) { |
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return $formatted_price; |
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} |
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return "$price $currency"; |
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} |
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/** |
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* Allows custom post types to be used by REST API. |
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* @param $post_types |
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* @see hook 'rest_api_allowed_post_types' |
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* @return array |
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*/ |
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function allow_rest_api_types( $post_types ) { |
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$post_types[] = self::$post_type_order; |
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$post_types[] = self::$post_type_product; |
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return $post_types; |
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} |
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function allow_sync_post_meta( $post_meta ) { |
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return array_merge( $post_meta, array( |
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'spay_paypal_id', |
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'spay_status', |
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'spay_product_id', |
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'spay_quantity', |
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'spay_price', |
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'spay_customer_email', |
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'spay_currency', |
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'spay_cta', |
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'spay_email', |
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'spay_multiple', |
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'spay_formatted_price', |
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) ); |
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} |
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/** |
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* Sets up the custom post types for the module. |
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*/ |
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function setup_cpts() { |
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/* |
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* ORDER data structure. holds: |
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* title = customer_name | 4xproduct_name |
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* excerpt = customer_name + customer contact info + customer notes from paypal form |
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* metadata: |
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* spay_paypal_id - paypal id of transaction |
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* spay_status |
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* spay_product_id - post_id of bought product |
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* spay_quantity - quantity of product |
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* spay_price - item price at the time of purchase |
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* spay_customer_email - customer email |
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* ... (WIP) |
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*/ |
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$order_capabilities = array( |
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'edit_post' => 'edit_posts', |
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'read_post' => 'read_private_posts', |
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'delete_post' => 'delete_posts', |
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'edit_posts' => 'edit_posts', |
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'edit_others_posts' => 'edit_others_posts', |
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'publish_posts' => 'publish_posts', |
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'read_private_posts' => 'read_private_posts', |
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); |
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$order_args = array( |
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'label' => esc_html__( 'Order', 'jetpack' ), |
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'description' => esc_html__( 'Simple Payments orders', 'jetpack' ), |
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'supports' => array( 'custom-fields', 'excerpt' ), |
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'hierarchical' => false, |
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'public' => false, |
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'show_ui' => false, |
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'show_in_menu' => false, |
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'show_in_admin_bar' => false, |
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'show_in_nav_menus' => false, |
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'can_export' => true, |
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'has_archive' => false, |
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'exclude_from_search' => true, |
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'publicly_queryable' => false, |
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'rewrite' => false, |
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'capabilities' => $order_capabilities, |
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'show_in_rest' => true, |
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); |
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register_post_type( self::$post_type_order, $order_args ); |
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/* |
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* PRODUCT data structure. Holds: |
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* title - title |
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* content - description |
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* thumbnail - image |
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* metadata: |
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* spay_price - price |
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* spay_formatted_price |
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* spay_currency - currency code |
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* spay_cta - text with "Buy" or other CTA |
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* spay_email - paypal email |
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* spay_multiple - allow for multiple items |
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* spay_status - status. { enabled | disabled } |
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*/ |
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$product_capabilities = array( |
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'edit_post' => 'edit_posts', |
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'read_post' => 'read_private_posts', |
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'delete_post' => 'delete_posts', |
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'edit_posts' => 'edit_posts', |
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'edit_others_posts' => 'edit_others_posts', |
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'publish_posts' => 'publish_posts', |
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'read_private_posts' => 'read_private_posts', |
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); |
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$product_args = array( |
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'label' => esc_html__( 'Product', 'jetpack' ), |
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'description' => esc_html__( 'Simple Payments products', 'jetpack' ), |
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'supports' => array( 'title', 'editor','thumbnail', 'custom-fields' ), |
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'hierarchical' => false, |
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'public' => false, |
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'show_ui' => false, |
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'show_in_menu' => false, |
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'show_in_admin_bar' => false, |
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'show_in_nav_menus' => false, |
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'can_export' => true, |
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'has_archive' => false, |
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'exclude_from_search' => true, |
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'publicly_queryable' => false, |
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'rewrite' => false, |
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'capabilities' => $product_capabilities, |
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'show_in_rest' => true, |
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); |
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register_post_type( self::$post_type_product, $product_args ); |
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} |
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} |
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Jetpack_Simple_Payments::getInstance(); |
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The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using
the property is implicitly global.
To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2.