diff options
Diffstat (limited to 'mod/blog/blog_lib.php')
| -rw-r--r-- | mod/blog/blog_lib.php | 181 |
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 index 000000000..0fe1b80d4 --- /dev/null +++ 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 { + +}
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