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authorbrettp <brettp@36083f99-b078-4883-b0ff-0f9b5a30f544>2010-03-12 02:12:47 +0000
committerbrettp <brettp@36083f99-b078-4883-b0ff-0f9b5a30f544>2010-03-12 02:12:47 +0000
commit36abf69637671a1cf65101212596118d155ef54a (patch)
treeac14b646b0fce5f8b7f0e0fde1415020137b071e /mod/blog/blog_lib.php
parent66bdaf5415ca35b1a210dd2e799ecea2571846f9 (diff)
downloadelgg-36abf69637671a1cf65101212596118d155ef54a.tar.gz
elgg-36abf69637671a1cf65101212596118d155ef54a.tar.bz2
Rough first version of a new blog plugin.
git-svn-id: http://code.elgg.org/elgg/trunk@5370 36083f99-b078-4883-b0ff-0f9b5a30f544
Diffstat (limited to 'mod/blog/blog_lib.php')
-rw-r--r--mod/blog/blog_lib.php181
1 files changed, 181 insertions, 0 deletions
diff --git a/mod/blog/blog_lib.php b/mod/blog/blog_lib.php
new file mode 100644
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+++ b/mod/blog/blog_lib.php
@@ -0,0 +1,181 @@
+<?php
+/**
+ * Blog helper functions
+ *
+ * @package Blog
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+ * @author Curverider Ltd
+ * @copyright Curverider Ltd 2008-2010
+ * @link http://elgg.org/
+ */
+
+
+/**
+ * Returns HTML for a blog post.
+ *
+ * @param int $guid of a blog entity.
+ * @return string html
+ */
+function blog_get_page_content_read($owner_guid, $guid) {
+ if ($guid) {
+ $blog = get_entity($guid);
+
+ if (!elgg_instanceof($blog, 'object', 'blog') && $blog->status == 'final') {
+ $content = elgg_echo('blog:error:post_not_found');
+ } else {
+ elgg_push_breadcrumb($blog->title, $blog->getURL());
+ $content = elgg_view_entity($blog, TRUE);
+ }
+ } else {
+ $content = elgg_list_entities_from_metadata(array(
+ 'type' => 'object',
+ 'subtype' => 'blog',
+ 'owner_guid' => $owner_guid,
+ 'full_view' => FALSE,
+ 'metadata_name_value_pair' => array('name' => 'status', 'value' => 'final')
+ ));
+ }
+
+ return $content;
+}
+
+/**
+ * Returns HTML to edit a blog post.
+ *
+ * @param int $guid
+ * @return string html
+ */
+function blog_get_page_content_edit($guid) {
+ $vars = array();
+ if ($guid) {
+ $blog = get_entity($guid);
+ $vars['entity'] = $blog;
+
+ if (!elgg_instanceof($blog, 'object', 'blog') || !$blog->canEdit()) {
+ $content = elgg_echo('blog:error:post_not_found');
+ }
+
+ elgg_push_breadcrumb($blog->title, $blog->getURL());
+ elgg_push_breadcrumb(elgg_echo('edit'));
+ } else {
+ elgg_push_breadcrumb(elgg_echo('blog:new'));
+ }
+
+ $content = elgg_view('blog/forms/edit', $vars);
+
+ return $content;
+}
+
+/**
+ * Saves a blog
+ *
+ * @param array $info An array of name=>value pairs to save to the blog entity
+ *
+ * @return array('success' => BOOL, 'message' => string);
+ */
+function blog_save_blog($info) {
+ // store errors to pass along
+ $error = FALSE;
+
+ if ($info['guid']) {
+ $entity = get_entity($info['guid']);
+ if (elgg_instanceof($entity, 'object', 'blog') && $entity->canEdit()) {
+ $blog = $entity;
+ } else {
+ $error = elgg_echo('blog:error:post_not_found');
+ }
+ } else {
+ $blog = new ElggObject();
+ $blog->subtype = 'blog';
+ }
+
+ // check required vars
+ $required = array('title', 'description');
+
+ // load from POST and do sanity and access checking
+ foreach ($info as $name => $value) {
+ if (in_array($name, $required) && empty($value)) {
+ $error = elgg_echo("blog:error:missing:$name");
+ }
+
+ if ($error) {
+ break;
+ }
+
+ switch ($name) {
+ case 'tags':
+ if ($value) {
+ $info[$name] = string_to_tag_array($value);
+ } else {
+ unset ($info[$name]);
+ }
+ break;
+
+ case 'excerpt':
+ // restrict to 300 chars
+ if ($value) {
+ $value = substr(strip_tags($value), 0, 300);
+ } else {
+ $value = substr(strip_tags($info['description']), 0, 300);
+ }
+ $info[$name] = $value;
+ break;
+
+ case 'container_guid':
+ // this can't be empty.
+ if (!empty($value)) {
+ if (can_write_to_container($user->getGUID(), $value)) {
+ $info[$name] = $value;
+ } else {
+ $error = elgg_echo("blog:error:cannot_write_to_container");
+ }
+ } else {
+ unset($info[$name]);
+ }
+ break;
+
+ // don't try to set the guid
+ case 'guid':
+ unset($info['guid']);
+ break;
+
+ default:
+ $info[$name] = $value;
+ break;
+ }
+ }
+
+ // assign values to the entity, stopping on error.
+ if (!$error) {
+ foreach ($info as $name => $value) {
+ if (!$blog->$name = $value) {
+ $error = elgg_echo('blog:error:cannot_save');
+ break;
+ }
+ }
+ }
+
+ // only try to save base entity if no errors
+ if (!$error && !$blog->save()) {
+ $error = elgg_echo('blog:error:cannot_save');
+ }
+
+ if ($error) {
+ $return = array(
+ 'success' => FALSE,
+ 'message' => $error
+ );
+ } else {
+ $return = array(
+ 'success' => TRUE,
+ 'message' => elgg_echo('blog:message:saved')
+ );
+ }
+
+ return $return;
+}
+
+
+class ElggBlog extends ElggObject {
+
+} \ No newline at end of file