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<?php
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// $Id: amazon_items.module,v 1.12 2005/08/03 04:11:52 nsk Exp $
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/**
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* @file
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* Allows sites to display products within nodes via the web-services of Amazon.com.
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*/
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/*
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* Third-party includes
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*/
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require_once "includes/AmazonProduct.class.inc";
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require_once "includes/AmazonSearchEngine.class.inc";
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if (file_exists("includes/Snoopy.class.inc")) {
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include_once "includes/Snoopy.class.inc";
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}
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/**
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* Implementation of hook_perm()
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*/
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function amazon_items_perm() {
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return array("access amazon items", "administer amazon items");
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}
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/**
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* Implementation of hook_nodeapi().
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*/
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function amazon_items_nodeapi(&$node, $op, $arg = 0, $arg2 = 0) {
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switch ($op) {
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case "settings":
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return array("amazon item" => form_checkbox("Amazon Items", "amazon_items_node_$node->type", 1, variable_get("amazon_items_node_$node->type", 0)));
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case "load":
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return _amazon_items_load($node);
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case "form post":
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if (user_access("administer amazon items") && (variable_get("amazon_items_node_$node->type", 0) == 1)) {
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$form = amazon_items_form($node, $arg);
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}
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return $form;
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case "view":
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if (!$teaser && user_access("access amazon items") && variable_get("amazon_items_box", 1)) {
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if ($node->amazon_items) {
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$node->body .= '<br /><a name="amazon-items"></a>' . theme("amazon_items", $node);
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}
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}
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break;
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case "insert":
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case "update":
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foreach ((array)$node->amazon_items as $amazon_item) {
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if (!$amazon_item["deleted"] && !$amazon_item["aid"]) {
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$aid = db_next_id("amazon_items_aid");
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db_query("INSERT INTO {amazon_items} (aid, asin, nid, name, url, imgsmall, imgmedium, imglarge)
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VALUES (%d, '%s', %d, '%s', '%s', '%s', '%s', '%s')",
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$aid, $amazon_item["asin"], $node->nid, $amazon_item["name"], $amazon_item["url"],
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$amazon_item["imgsmall"], $amazon_item["imgmedium"], $amazon_item["imglarge"]);
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}
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elseif ($amazon_item["deleted"] && $amazon_item["aid"]) {
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db_query("DELETE FROM {amazon_items} WHERE aid=%d", $amazon_item["aid"]);
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}
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}
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break;
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case "delete":
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if (variable_get("amazon_items_node_$node->type", TRUE)) {
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db_query("DELETE FROM {amazon_items} WHERE nid=%d", $node->nid);
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}
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break;
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case "validate":
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switch ($_POST["fileop"]) {
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case t("Add item"):
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return _amazon_items_add_item($node);
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case t("Delete selected items"):
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return _amazon_items_delete_item($node);
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}
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break;
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default:
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break;
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}
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return;
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}
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/**
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* Implementation of hook_menu()
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*/
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function amazon_items_menu($may_cache) {
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if (!$may_cache) {
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drupal_set_html_head(_amazon_items_html_head());
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}
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return;
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}
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/**
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* Implementation of hook_help().
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*/
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function amazon_items_help($section) {
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switch ($section) {
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case "admin/modules#description":
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return t("Allows sites to display products within nodes via the web services of Amazon.com.");
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case "admin/settings/amazon_items":
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return t("<p>Amazon items are products added to nodes via ASIN. They may be displayed in a box below node content, or in a sidebar block, or both.</p>
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<p>The intended usage is to list items related to the node so that a reader could buy products from Amazon using your Affiliate ID, thus giving you a kickback on the purchase.</p>
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<p>There are two ways to display items within nodes:</p>
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<ul><li>Box - enable the option on this page</li>
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<li>Block - go to admin/block and enable the block</li></ul>");
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default:
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break;
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}
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}
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/**
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* Implementation of hook_settings().
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*/
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function amazon_items_settings() {
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$group = form_textfield(t("Amazon XML server"), "amazon_items_server", variable_get("amazon_items_server", "xml.amazon.com"), 20, 40);
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$group .= form_textfield(t("Affiliate ID"), "amazon_items_affid", variable_get("amazon_items_affid", "none"), 20, 40, "Your Amazon affiliate ID.");
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$group .= form_textfield(t("Developer Token"), "amazon_items_devt", variable_get("amazon_items_devt", "none"), 20, 40, "Your Amazon Developer Token.");
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$output = form_group(t("Amazon authentication"), $group);
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$group = form_select(t("Box display"), "amazon_items_box", variable_get("amazon_items_box", 1), array("1" => "Enable", "0" => "Disable"));
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$group .= form_textfield(t("Box title"), "amazon_items_boxtitle", variable_get("amazon_items_boxtitle", "Related items from Amazon.com"), 40, 255, "The label for the Amazon items box that will appear below the node content.");
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$group .= form_textfield(t("Block title"), "amazon_items_blocktitle", variable_get("amazon_items_blocktitle", "Related items from Amazon.com"), 40, 255, "The title of the Amazon items block.");
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$group .= form_select(t("Item format"), "amazon_items_format", variable_get("amazon_items_format", "iframe"), array("iframe" => "Amazon-served iFrame", "html" => "Standard HTML"));
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$group .= form_select(t("Thumbnail size"), "amazon_items_imgsize", variable_get("amazon_items_imgsize", "imgmedium"), array("imgsmall" => "Small", "imgmedium" => "Medium", "imglarge" => "Large"), 'Enter thumbnail size. This applies to the "Standard HTML" format for items displayed in the amazon_items box, and for all items displayed in the amazon_items block.');
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$output .= form_group(t("Node display settings"), $group);
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return $output;
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}
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/**
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* Implementation of hook_link()
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*/
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function amazon_items_link($type, $node = NULL, $teaser = FALSE) {
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$links = array();
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switch ($type) {
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case "node":
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if ($teaser && !empty($node->amazon_items)) {
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$links[] = l(t("related items"), "node/$node->nid#amazon-items", array("title" => t("Related items from Amazon.com")));
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}
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break;
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default:
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break;
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}
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return $links;
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}
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/**
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* Implementation of hook_block()
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*/
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function amazon_items_block($op = "list", $delta = 0) {
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if ($op == "list") {
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$blocks[0]["info"] = variable_get("amazon_items_blocktitle", "Related items from Amazon.com");
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return $blocks;
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} else {
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switch ($delta) {
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case 0:
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if (user_access("access amazon items")) {
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$block["subject"] = variable_get("amazon_items_blocktitle", "Related items from Amazon.com");
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$block["content"] = _amazon_items_block_show();
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}
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break;
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}
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return $block;
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}
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}
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/**
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* Implementation of hook_form().
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*/
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function amazon_items_form(&$node, &$param) {
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$output = '<div class="amazon-item-form">';
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$header = array("", t("Title"), t("Asin"));
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foreach ((array)$node->amazon_items as $key => $amazon_item) {
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$fields = array("aid", "asin", "name", "url", "imgsmall", "imgmedium", "imglarge", "deleted");
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foreach ($fields as $field) {
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$output .= form_hidden("amazon_items][$key][$field", $amazon_item[$field]);
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}
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if ($amazon_item["deleted"]) {
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$output .= form_hidden("amazon_items][$key][selected", false);
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}
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else {
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$rows[] = array(
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form_checkbox("", "amazon_items][$key][selected"),
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l(stripslashes($amazon_item["name"]), $amazon_item["url"]),
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$amazon_item["asin"]);
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}
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}
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if (count($rows) > 0) {
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$attributes["class"] = "amazon-item-list";
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$group .= theme("table", $header, $rows, $attributes);
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$group .= form_submit(t("Delete selected items"), "fileop");
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}
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$group .= form_textfield(t("New item"), "amazon_items_asin", NULL, 20, 20, t("Enter the Asin for the item."));
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$group .= form_submit(t("Add item"), "fileop");
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$output .= form_group(variable_get("amazon_items_boxtitle", "Related items from Amazon.com"), $group);
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$output .= "</div>";
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return $output;
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}
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/*
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* Functions specific to amazon_items
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*/
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/**
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* Provides a link to the CSS stylesheet associated with this module.
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*
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* @return
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* An HTML string of a style declaration to import the custom stylesheet
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*/
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function _amazon_items_html_head() {
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return '<style type="text/css" media="all">@import url(modules/amazon_items/amazon_items.css);</style>';
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}
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/**
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* Callback function to add an item to a node being edited.
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*
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* @param
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* The node being edited
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*/
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function _amazon_items_add_item(&$node) {
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if (!$node->amazon_items_asin) {
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form_set_error("amazon_items_asin", t("No Asin was entered."));
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return $node;
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}
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$am_affid = variable_get("amazon_items_affid", "none");
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$am_devt = variable_get("amazon_items_devt", "none");
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$amazonSE = new AmazonSearchEngine($am_devt, $am_affid, "2.0");
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$amazonSE->server = variable_get("amazon_items_server", "xml.amazon.com");
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$amazonSE->searchAsin(db_escape_string(trim($node->amazon_items_asin)));
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if (count($amazonSE->results) == 1) {
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$new_amazon_item = array(
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"asin" => trim($node->amazon_items_asin),
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"name" => db_escape_string($amazonSE->results[0]->ProductName),
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"url" => $amazonSE->results[0]->url,
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"imgsmall" => $amazonSE->results[0]->ImageUrlSmall,
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"imgmedium" => $amazonSE->results[0]->ImageUrlMedium,
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"imglarge" => $amazonSE->results[0]->ImageUrlLarge,
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"deleted" => FALSE);
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$node->amazon_items[] = $new_amazon_item;
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}
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elseif (count($amazonSE->results) == 0) {
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form_set_error("amazon_items_asin", t("No records matched that ASIN, or API changes prohibit this module from working ok, or your Developer Token in the settings page is wrong."));
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return $node;
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}
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drupal_set_message(t("The Amazon item has been added. Remember to press Submit at the bottom of this form to save your changes."));
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}
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/**
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* Callback function to delete an item from a node being edited.
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*
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* @param
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* A reference to the node object being edited
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*/
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function _amazon_items_delete_item(&$node) {
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for ($i = 0; $i < count($node->amazon_items); $i++) {
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if ($node->amazon_items[$i]["selected"]) {
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$node->amazon_items[$i]["deleted"] = TRUE;
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$report = TRUE;
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}
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}
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if ($report) {
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drupal_set_message(t("The Amazon item(s) have been deleted. Remember to press Submit at the bottom of this form to save your changes."));
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}
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else {
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form_set_error("amazon_items", t("No Amazon items were selected for deletion."));
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}
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}
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/**
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* Retrieve Amazon items from database for a given node.
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*
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* @param
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* The node object being viewed
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* @return
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* An associative array of Amazon item data for the node
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*/
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function _amazon_items_load($node) {
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$result = db_query("SELECT aid, asin, nid, name, url, imgsmall, imgmedium, imglarge ".
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"FROM {amazon_items} WHERE nid = %d", $node->nid);
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while ($amazon_item = db_fetch_array($result)) {
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$amazon_item["deleted"] = FALSE;
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$amazon_items[] = $amazon_item;
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}
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$fields["amazon_items"] = $amazon_items;
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return $fields;
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}
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/**
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* Retrieve Amazon items for a node and generate an HTML-formatted block
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*
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* @return
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* An HTML-formatted block with associated Amazon items
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*/
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function _amazon_items_block_show() {
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$output = "";
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$result = db_query("SELECT * FROM {amazon_items} WHERE nid=%d", arg(1));
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while ($amazon_item = db_fetch_array($result)) {
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$output .= '<div class="amazon-items-item">'
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. '<a href="'.$amazon_item['url'].'">'
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. '<img src="'.$amazon_item[variable_get("amazon_items_imgsize", "imgmedium")].'" alt="'.stripslashes($amazon_item['name']).'" /></a><br />'
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. '<a href="'.$amazon_item['url'].'">'.stripslashes($amazon_item['name']).'</a></div>'. "\n";
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}
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return $output;
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}
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/**
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* @addtogroup themeable
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* @{
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*/
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/**
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* Format a list of Amazon items for display in a given node
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*
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* @param $node
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* The node being viewed
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* @return
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* An HTML-formatted container with Amazon items for the node
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*/
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function theme_amazon_items($node) {
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$output = '<fieldset class="amazon-items-fieldset"><legend>'.variable_get("amazon_items_boxtitle", "Related items from Amazon.com")."</legend>\n";
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$output .= '<div class="amazon-items">' . "\n";
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foreach ((array)$node->amazon_items as $amazon_item) {
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if (!$amazon_item["deleted"]) {
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$display = TRUE;
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$format = variable_get("amazon_items_format", "iframe");
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if ($format == "iframe") {
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// Amazon-served iFrame format
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$amazon_affid = variable_get("amazon_items_affid", "none");
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// Asin must be 10 characters, so pad if necessary
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$url = "http://rcm.amazon.com/e/cm?t=$amazon_affid&o=1&p=8&l=as1&asins="
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. str_pad($amazon_item["asin"], 10, "0", STR_PAD_LEFT)."&fc1=000000&lc1=0000ff&bc1=<1=_blank&IS2=1&bg1=ffffff&f=ifr";
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$output .= '<iframe src="'.$url.'" width="120" height="240" scrolling="no" marginwidth="0" marginheight="0" frameborder="0">'
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. '<a href="'.$url.'">'.$amazon_item["name"]."</a>"
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. "</iframe>\n";
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}
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elseif ($format == "html") {
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// Standard HTML format
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$imgsize = variable_get("amazon_items_imgsize", "imgsmall");
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$output .= '<dl class="'.$imgsize.'">' . "\n";
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$output .= '<dt><a href="'.$amazon_item['url'].'" title="'.stripslashes($amazon_item['name']).'"><img src="'.$amazon_item[$imgsize].'" /></a></dt>' . "\n";
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$output .= '<dd><a href="'.$amazon_item['url'].'" title="'.stripslashes($amazon_item['name']).'">'.stripslashes($amazon_item['name'])."</a></dd>\n";
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$output .= "</dl>\n";
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}
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}
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}
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$output .= "</div>\n";
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$output .= "</fieldset>\n";
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return $display ? $output : FALSE;
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}
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| 366 |
/**
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* @} end of addtogroup themeable
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*/
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?>
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