* @author Julio Montoya - Cleaning code
*/
class Blog
{
/**
* Get the title of a blog
* @author Toon Keppens
*
* @param int $blog_id
*
* @return String Blog Title
*/
public static function getBlogTitle($blog_id)
{
$course_id = api_get_course_int_id();
if (is_numeric($blog_id)) {
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$sql = "SELECT blog_name
FROM ".$tbl_blogs."
WHERE c_id = $course_id AND blog_id = ".intval($blog_id);
$result = Database::query($sql);
$blog = Database::fetch_array($result);
return stripslashes($blog['blog_name']);
}
}
/**
* Get the description of a blog
* @author Toon Keppens
*
* @param Integer $blog_id
*
* @return String Blog description
*/
public static function getBlogSubtitle($blog_id)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$course_id = api_get_course_int_id();
$sql = "SELECT blog_subtitle FROM $tbl_blogs
WHERE c_id = $course_id AND blog_id ='".intval($blog_id)."'";
$result = Database::query($sql);
$blog = Database::fetch_array($result);
return stripslashes($blog['blog_subtitle']);
}
/**
* Get the users of a blog
* @author Toon Keppens
* @param int $blog_id The ID of the blog
* @return array Returns an array with [userid]=>[username]
*/
public static function getBlogUsers($blog_id)
{
// Database table definitions
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$course_id = api_get_course_int_id();
// Get blog members
$sql = "SELECT user.user_id, user.firstname, user.lastname
FROM $tbl_blogs_rel_user blogs_rel_user
INNER JOIN $tbl_users user
ON (blogs_rel_user.user_id = user.user_id)
WHERE
blogs_rel_user.c_id = $course_id AND
blogs_rel_user.blog_id = '".(int) $blog_id."'";
$result = Database::query($sql);
$blog_members = array();
while ($user = Database::fetch_array($result)) {
$blog_members[$user['user_id']] = api_get_person_name(
$user['firstname'],
$user['lastname']
);
}
return $blog_members;
}
/**
* Creates a new blog in the given course
* @author Toon Keppens
* @param string $title The title of the new blog
* @param string $subtitle The description (or subtitle) of the new blog
* @return void
*/
public static function addBlog($title, $subtitle)
{
$_user = api_get_user_info();
$course_id = api_get_course_int_id();
$current_date = api_get_utc_datetime();
$session_id = api_get_session_id();
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
//verified if exist blog
$sql = 'SELECT COUNT(*) as count FROM '.$tbl_blogs.'
WHERE
c_id = '.$course_id.' AND
blog_name="'.Database::escape_string($title).'" AND
blog_subtitle="'.Database::escape_string($subtitle).'"';
$res = Database::query($sql);
$info_count = Database::result($res, 0, 0);
if ($info_count == 0) {
// Create the blog
$params = [
'blog_id' => 0,
'c_id' => $course_id,
'blog_name' => $title,
'blog_subtitle' => $subtitle,
'date_creation' => $current_date,
'visibility' => 1,
'session_id' => $session_id,
];
$this_blog_id = Database::insert($tbl_blogs, $params);
if ($this_blog_id > 0) {
$sql = "UPDATE $tbl_blogs SET blog_id = iid WHERE iid = $this_blog_id";
Database::query($sql);
// insert into item_property
api_item_property_update(
api_get_course_info(),
TOOL_BLOGS,
$this_blog_id,
'BlogAdded',
api_get_user_id()
);
}
// Make first post. :)
$params = [
'post_id' => 0,
'c_id' => $course_id,
'title' => get_lang("Welcome"),
'full_text' => get_lang('FirstPostText'),
'date_creation' => $current_date,
'blog_id' => $this_blog_id,
'author_id' => $_user['user_id'],
];
$postId = Database::insert($tbl_blogs_posts, $params);
if ($postId) {
$sql = "UPDATE $tbl_blogs_posts SET post_id = iid WHERE iid = $postId";
Database::query($sql);
}
// Put it on course homepage
$sql = "INSERT INTO $tbl_tool (c_id, name, link, image, visibility, admin, address, added_tool, session_id, target)
VALUES ($course_id, '".Database::escape_string(
$title
)."','blog/blog.php?blog_id=".(int) $this_blog_id."','blog.gif','1','0','pastillegris.gif',0,'$session_id', '')";
Database::query($sql);
$toolId = Database::insert_id();
if ($toolId) {
$sql = "UPDATE $tbl_tool SET id = iid WHERE iid = $toolId";
Database::query($sql);
}
// Subscribe the teacher to this blog
Blog::subscribeUser($this_blog_id, $_user['user_id']);
}
}
/**
* Subscribes a user to a given blog
* @author Toon Keppens
*
* @param Integer $blog_id
* @param Integer $user_id
*/
public static function subscribeUser($blog_id, $user_id)
{
// Init
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$tbl_user_permissions = Database::get_course_table(TABLE_PERMISSION_USER);
$course_id = api_get_course_int_id();
// Subscribe the user
$sql = "INSERT INTO $tbl_blogs_rel_user (c_id, blog_id, user_id )
VALUES ($course_id, '".(int) $blog_id."', '".(int) $user_id."');";
Database::query($sql);
// Give this user basic rights
$sql = "INSERT INTO $tbl_user_permissions (c_id, user_id,tool,action)
VALUES ($course_id, '".(int) $user_id."','BLOG_".(int) $blog_id."','article_add')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_user_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
$sql = "INSERT INTO $tbl_user_permissions (c_id, user_id,tool,action)
VALUES ($course_id, '".(int) $user_id."','BLOG_".(int) $blog_id."','article_comments_add')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_user_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
/**
* Update title and subtitle of a blog in the given course
* @author Toon Keppens
* @param string $title
*/
public static function editBlog($blog_id, $title, $subtitle = '')
{
// Table definitions
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$course_id = api_get_course_int_id();
// Update the blog
$sql = "UPDATE $tbl_blogs SET
blog_name = '".Database::escape_string($title)."',
blog_subtitle = '".Database::escape_string($subtitle)."'
WHERE
c_id = $course_id AND
blog_id ='".Database::escape_string((int) $blog_id)."'
LIMIT 1";
Database::query($sql);
//update item_property (update)
api_item_property_update(
api_get_course_info(),
TOOL_BLOGS,
intval($blog_id),
'BlogUpdated',
api_get_user_id()
);
// Update course homepage link
$sql = "UPDATE $tbl_tool SET
name = '".Database::escape_string($title)."'
WHERE c_id = $course_id AND link = 'blog/blog.php?blog_id=".(int) $blog_id."'
LIMIT 1";
Database::query($sql);
}
/**
* Deletes a blog and it's posts from the course database
* @author Toon Keppens
* @param Integer $blog_id The internal blog ID
* @return void
*/
public static function deleteBlog($blog_id)
{
// Init
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comment = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
// Delete posts from DB and the attachments
self::deleteAllBlogAttachments($blog_id);
//Delete comments
$sql = "DELETE FROM $tbl_blogs_comment WHERE c_id = $course_id AND blog_id ='".$blog_id."'";
Database::query($sql);
// Delete posts
$sql = "DELETE FROM $tbl_blogs_posts WHERE c_id = $course_id AND blog_id ='".$blog_id."'";
Database::query($sql);
// Delete tasks
$sql = "DELETE FROM $tbl_blogs_tasks WHERE c_id = $course_id AND blog_id ='".$blog_id."'";
Database::query($sql);
// Delete ratings
$sql = "DELETE FROM $tbl_blogs_rating WHERE c_id = $course_id AND blog_id ='".$blog_id."'";
Database::query($sql);
// Delete blog
$sql = "DELETE FROM $tbl_blogs WHERE c_id = $course_id AND blog_id ='".$blog_id."'";
Database::query($sql);
// Delete from course homepage
$sql = "DELETE FROM $tbl_tool WHERE c_id = $course_id AND link = 'blog/blog.php?blog_id=".$blog_id."'";
Database::query($sql);
//update item_property (delete)
api_item_property_update(
api_get_course_info(),
TOOL_BLOGS,
$blog_id,
'delete',
api_get_user_id()
);
}
/**
* Creates a new post in a given blog
* @author Toon Keppens
* @param String $title
* @param String $full_text
* @param Integer $blog_id
*/
public static function createPost($title, $full_text, $file_comment, $blog_id)
{
$_user = api_get_user_info();
$_course = api_get_course_info();
$course_id = $_course['real_id'];
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$upload_ok = true;
$has_attachment = false;
$current_date = api_get_utc_datetime();
if (!empty($_FILES['user_upload']['name'])) {
$upload_ok = process_uploaded_file($_FILES['user_upload']);
$has_attachment = true;
}
if ($upload_ok) {
// Table Definitions
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
// Create the post
$sql = "INSERT INTO $tbl_blogs_posts (c_id, title, full_text, date_creation, blog_id, author_id )
VALUES ($course_id, '".Database::escape_string($title)."', '".Database::escape_string(
$full_text
)."','".$current_date."', '".(int) $blog_id."', '".(int) $_user['user_id']."');";
Database::query($sql);
$last_post_id = Database::insert_id();
if ($last_post_id) {
$sql = "UPDATE $tbl_blogs_posts SET post_id = iid WHERE iid = $last_post_id";
Database::query($sql);
}
if ($has_attachment) {
$courseDir = $_course['path'].'/upload/blog';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$updir = $sys_course_path.$courseDir;
// Try to add an extension to the file if it hasn't one
$new_file_name = add_ext_on_mime(
stripslashes($_FILES['user_upload']['name']),
$_FILES['user_upload']['type']
);
// user's file name
$file_name = $_FILES['user_upload']['name'];
if (!filter_extension($new_file_name)) {
Display::display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
} else {
$new_file_name = uniqid('');
$new_path = $updir.'/'.$new_file_name;
$result = @move_uploaded_file($_FILES['user_upload']['tmp_name'], $new_path);
$comment = Database::escape_string($file_comment);
// Storing the attachments if any
if ($result) {
$sql = 'INSERT INTO '.$blog_table_attachment.'(c_id, filename,comment, path, post_id,size, blog_id,comment_id) '.
"VALUES ($course_id, '".Database::escape_string(
$file_name
)."', '".$comment."', '".Database::escape_string(
$new_file_name
)."' , '".$last_post_id."', '".intval(
$_FILES['user_upload']['size']
)."', '".$blog_id."', '0' )";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $blog_table_attachment SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
}
return $last_post_id;
} else {
Display::display_error_message(get_lang('UplNoFileUploaded'));
}
}
/**
* Edits a post in a given blog
* @author Toon Keppens
* @param int $post_id The internal ID of the post to edit
* @param string $title The title
* @param string $full_text The full post text
* @param int $blog_id The internal ID of the blog in which the post is located
*/
public static function editPost($post_id, $title, $full_text, $blog_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$course_id = api_get_course_int_id();
// Create the post
$sql = "UPDATE $tbl_blogs_posts SET
title = '".Database::escape_string($title)."',
full_text = '".Database::escape_string($full_text)."'
WHERE c_id = $course_id AND post_id ='".(int) $post_id."' AND blog_id ='".(int) $blog_id."'
LIMIT 1 ";
Database::query($sql);
}
/**
* Deletes an article and its comments
* @author Toon Keppens
* @param int $blog_id The internal blog ID
* @param int $post_id The internal post ID
*/
public static function deletePost($blog_id, $post_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$course_id = api_get_course_int_id();
// Delete ratings on this comment
$sql = "DELETE FROM $tbl_blogs_rating
WHERE c_id = $course_id AND blog_id = '".(int) $blog_id."' AND item_id = '".(int) $post_id."' AND rating_type = 'post'";
Database::query($sql);
// Delete the post
$sql = "DELETE FROM $tbl_blogs_posts
WHERE c_id = $course_id AND post_id = '".(int) $post_id."'";
Database::query($sql);
// Delete the comments
$sql = "DELETE FROM $tbl_blogs_comments
WHERE c_id = $course_id AND post_id = '".(int) $post_id."' AND blog_id = '".(int) $blog_id."'";
Database::query($sql);
// Delete posts and attachments
self::deleteAllBlogAttachments($blog_id, $post_id);
}
/**
* Creates a comment on a post in a given blog
* @author Toon Keppens
* @param String $title
* @param String $full_text
* @param Integer $blog_id
* @param Integer $post_id
* @param Integer $parent_id
*/
public static function createComment(
$title,
$full_text,
$file_comment,
$blog_id,
$post_id,
$parent_id,
$task_id = 'NULL'
) {
$_user = api_get_user_info();
$_course = api_get_course_info();
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$upload_ok = true;
$has_attachment = false;
$current_date = api_get_utc_datetime();
$course_id = api_get_course_int_id();
if (!empty($_FILES['user_upload']['name'])) {
$upload_ok = process_uploaded_file($_FILES['user_upload']);
$has_attachment = true;
}
if ($upload_ok) {
// Table Definition
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
// Create the comment
$sql = "INSERT INTO $tbl_blogs_comments (c_id, title, comment, author_id, date_creation, blog_id, post_id, parent_comment_id, task_id )
VALUES ($course_id, '".Database::escape_string($title)."', '".Database::escape_string(
$full_text
)."', '".(int) $_user['user_id']."','".$current_date."', '".(int) $blog_id."', '".(int) $post_id."', '".(int) $parent_id."', '".(int) $task_id."')";
Database::query($sql);
// Empty post values, or they are shown on the page again
$last_id = Database::insert_id();
if ($last_id) {
$sql = "UPDATE $tbl_blogs_comments SET comment_id = iid WHERE iid = $last_id";
Database::query($sql);
}
if ($has_attachment) {
$courseDir = $_course['path'].'/upload/blog';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$updir = $sys_course_path.$courseDir;
// Try to add an extension to the file if it hasn't one
$new_file_name = add_ext_on_mime(
stripslashes($_FILES['user_upload']['name']),
$_FILES['user_upload']['type']
);
// user's file name
$file_name = $_FILES['user_upload']['name'];
if (!filter_extension($new_file_name)) {
Display:: display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
} else {
$new_file_name = uniqid('');
$new_path = $updir.'/'.$new_file_name;
$result = @move_uploaded_file($_FILES['user_upload']['tmp_name'], $new_path);
$comment = Database::escape_string($file_comment);
// Storing the attachments if any
if ($result) {
$sql = 'INSERT INTO '.$blog_table_attachment.'(c_id, filename,comment, path, post_id,size,blog_id,comment_id) '.
"VALUES ($course_id, '".Database::escape_string(
$file_name
)."', '".$comment."', '".Database::escape_string(
$new_file_name
)."' , '".$post_id."', '".$_FILES['user_upload']['size']."', '".$blog_id."', '".$last_id."' )";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $blog_table_attachment SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
}
}
}
/**
* Deletes a comment from a blogpost
* @author Toon Keppens
* @param int $blog_id The internal blog ID
* @param int $post_id The internal post ID
* @param int $comment_id The internal comment ID
*/
public static function deleteComment($blog_id, $post_id, $comment_id)
{
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$comment_id = intval($comment_id);
$course_id = api_get_course_int_id();
self::deleteAllBlogAttachments($blog_id, $post_id, $comment_id);
// Delete ratings on this comment
$sql = "DELETE FROM $tbl_blogs_rating
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
item_id = $comment_id AND
rating_type = 'comment'";
Database::query($sql);
// select comments that have the selected comment as their parent
$sql = "SELECT comment_id FROM $tbl_blogs_comments
WHERE c_id = $course_id AND parent_comment_id = $comment_id";
$result = Database::query($sql);
// Delete them recursively
while ($comment = Database::fetch_array($result)) {
Blog::deleteComment($blog_id, $post_id, $comment['comment_id']);
}
// Finally, delete the selected comment to
$sql = "DELETE FROM $tbl_blogs_comments
WHERE c_id = $course_id AND comment_id = $comment_id";
Database::query($sql);
}
/**
* Creates a new task in a blog
* @author Toon Keppens
* @param Integer $blog_id
* @param String $title
* @param String $description
* @param String $color
*/
public static function addTask(
$blog_id,
$title,
$description,
$articleDelete,
$articleEdit,
$commentsDelete,
$color
) {
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_tasks_permissions = Database::get_course_table(TABLE_BLOGS_TASKS_PERMISSIONS);
$course_id = api_get_course_int_id();
// Create the task
$sql = "INSERT INTO $tbl_blogs_tasks (c_id, blog_id, title, description, color, system_task)
VALUES ($course_id , '".(int) $blog_id."', '".Database::escape_string(
$title
)."', '".Database::escape_string($description)."', '".Database::escape_string($color)."', '0');";
Database::query($sql);
$task_id = Database::insert_id();
if ($task_id) {
$sql = "UPDATE $tbl_blogs_tasks SET task_id = iid WHERE iid = $task_id";
Database::query($sql);
}
$tool = 'BLOG_'.$blog_id;
if ($articleDelete == 'on') {
$sql = " INSERT INTO ".$tbl_tasks_permissions." ( c_id, task_id, tool, action) VALUES (
'".(int) $course_id."',
'".(int) $task_id."',
'".Database::escape_string($tool)."',
'article_delete'
)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ($articleEdit == 'on') {
$sql = "
INSERT INTO ".$tbl_tasks_permissions." (c_id, task_id, tool, action ) VALUES (
'".(int) $course_id."',
'".(int) $task_id."',
'".Database::escape_string($tool)."',
'article_edit'
)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ($commentsDelete == 'on') {
$sql = "
INSERT INTO ".$tbl_tasks_permissions." (c_id, task_id, tool, action ) VALUES (
'".(int) $course_id."',
'".(int) $task_id."',
'".Database::escape_string($tool)."',
'article_comments_delete'
)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
/**
* Edit a task in a blog
* @author Toon Keppens
* @param int $blog_id The internal blog ID
* @param int $task_id The internal task ID
* @param string $title The task title
* @param string $description The task description
* @param string $articleDelete Set to 'on' to register as 'article_delete' in tasks_permissions
* @param string $articleEdit Set to 'on' to register as 'article_edit' in tasks_permissions
* @param string $commentsDelete Set to 'on' to register as 'article_comments_delete' in tasks permissions
* @param string $color The color code
*/
public static function editTask(
$blog_id,
$task_id,
$title,
$description,
$articleDelete,
$articleEdit,
$commentsDelete,
$color
) {
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_tasks_permissions = Database::get_course_table(TABLE_BLOGS_TASKS_PERMISSIONS);
$course_id = api_get_course_int_id();
// Create the task
$sql = "UPDATE $tbl_blogs_tasks SET
title = '".Database::escape_string($title)."',
description = '".Database::escape_string($description)."',
color = '".Database::escape_string($color)."'
WHERE c_id = $course_id AND task_id ='".(int) $task_id."' LIMIT 1";
Database::query($sql);
$tool = 'BLOG_'.$blog_id;
$sql = "DELETE FROM ".$tbl_tasks_permissions."
WHERE c_id = $course_id AND task_id = '".(int) $task_id."'";
Database::query($sql);
if ($articleDelete == 'on') {
$sql = "INSERT INTO ".$tbl_tasks_permissions." ( c_id, task_id, tool, action) VALUES (
'".(int) $course_id."',
'".(int) $task_id."',
'".Database::escape_string($tool)."',
'article_delete'
)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ($articleEdit == 'on') {
$sql = "INSERT INTO ".$tbl_tasks_permissions." (c_id, task_id, tool, action) VALUES (
'".(int) $course_id."',
'".(int) $task_id."',
'".Database::escape_string($tool)."',
'article_edit'
)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ($commentsDelete == 'on') {
$sql = " INSERT INTO ".$tbl_tasks_permissions." (c_id, task_id, tool, action) VALUES (
'".(int) $course_id."',
'".(int) $task_id."',
'".Database::escape_string($tool)."',
'article_comments_delete'
)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
/**
* Deletes a task from a blog
* @param int $blog_id
* @param int $task_id
* @return void
*/
public static function deleteTask($blog_id, $task_id)
{
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
// Delete posts
$sql = "DELETE FROM $tbl_blogs_tasks
WHERE c_id = $course_id AND blog_id = '".(int) $blog_id."' AND task_id = '".(int) $task_id."'";
Database::query($sql);
}
/**
* Deletes an assigned task from a blog
* @param int $blog_id
* @param int $task_id
* @param int $user_id
* @return void
*/
public static function deleteAssignedTask($blog_id, $task_id, $user_id)
{
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
// Delete posts
$sql = "DELETE FROM $tbl_blogs_tasks_rel_user
WHERE
c_id = $course_id AND
blog_id = '".(int) $blog_id."' AND
task_id = '".(int) $task_id."' AND
user_id = '".(int) $user_id."'";
Database::query($sql);
}
/**
* Get personal task list
* @author Toon Keppens
* @return Returns an unsorted list (
) with the users' tasks
*/
public static function getPersonalTasksList()
{
$_user = api_get_user_info();
$html = null;
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
if ($_user['user_id']) {
$sql = "SELECT task_rel_user.*, task.title, blog.blog_name
FROM $tbl_blogs_tasks_rel_user task_rel_user
INNER JOIN $tbl_blogs_tasks task
ON task_rel_user.task_id = task.task_id
INNER JOIN $tbl_blogs blog
ON task_rel_user.blog_id = blog.blog_id
AND blog.blog_id = ".intval($_GET['blog_id'])."
WHERE
task.c_id = $course_id AND
blog.c_id = $course_id AND
task_rel_user.c_id = $course_id AND
task_rel_user.user_id = ".(int) $_user['user_id']."
ORDER BY target_date ASC";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
$html .= '';
while ($mytask = Database::fetch_array($result)) {
$html .= ''.stripslashes($mytask['title']).' ';
}
$html .= '';
} else {
$html .= get_lang('NoTasks');
}
} else {
$html .= get_lang('NoTasks');
}
return $html;
}
/**
* Changes the visibility of a blog
* @author Toon Keppens
* @param Integer $blog_id
*/
public static function changeBlogVisibility($blog_id)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$course_id = api_get_course_int_id();
// Get blog properties
$sql = "SELECT blog_name, visibility FROM $tbl_blogs
WHERE c_id = $course_id AND blog_id='".(int) $blog_id."'";
$result = Database::query($sql);
$blog = Database::fetch_array($result);
$visibility = $blog['visibility'];
$title = $blog['blog_name'];
if ($visibility == 1) {
// Change visibility state, remove from course home.
$sql = "UPDATE $tbl_blogs SET visibility = '0'
WHERE c_id = $course_id AND blog_id ='".(int) $blog_id."' LIMIT 1";
Database::query($sql);
$sql = "DELETE FROM $tbl_tool
WHERE c_id = $course_id AND name = '".Database::escape_string($title)."' LIMIT 1";
Database::query($sql);
} else {
// Change visibility state, add to course home.
$sql = "UPDATE $tbl_blogs SET visibility = '1'
WHERE c_id = $course_id AND blog_id ='".(int) $blog_id."' LIMIT 1";
Database::query($sql);
$sql = "INSERT INTO $tbl_tool (c_id, name, link, image, visibility, admin, address, added_tool, target )
VALUES ($course_id, '".Database::escape_string(
$title
)."', 'blog/blog.php?blog_id=".(int) $blog_id."', 'blog.gif', '1', '0', 'pastillegris.gif', '0', '_self')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tool SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
/**
* Display the search results
* @param Integer $blog_id
* @param String $query_string
*/
public static function getSearchResults($blog_id, $query_string)
{
// Init
$query_string = Database::escape_string($query_string);
$query_string_parts = explode(' ', $query_string);
$query_string = array();
foreach ($query_string_parts as $query_part) {
$query_string[] = " full_text LIKE '%".$query_part."%' OR title LIKE '%".$query_part."%' ";
}
$query_string = '('.implode('OR', $query_string).')';
// Display the posts
//echo '' . get_lang('SearchResults') . ' ';
return Blog::getPosts($blog_id, $query_string);
}
/**
* Shows the posts of a blog
* @author Toon Keppens
*
* @param Integer $blog_id
*/
public static function getPosts($blog_id, $filter = '1=1', $max_number_of_posts = 20)
{
// Init
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
// Get posts and authors
$sql = "SELECT post.*, user.lastname, user.firstname, user.username
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user
ON post.author_id = user.user_id
WHERE post.blog_id = '".(int) $blog_id."' AND
post.c_id = $course_id AND
$filter
ORDER BY post_id DESC LIMIT 0,".(int) $max_number_of_posts;
$result = Database::query($sql);
// Display
if (Database::num_rows($result) > 0) {
$limit = 200;
while ($blog_post = Database::fetch_array($result)) {
// Get number of comments
$sql = "SELECT COUNT(1) as number_of_comments
FROM $tbl_blogs_comments
WHERE
c_id = $course_id AND
blog_id = '".(int) $blog_id."' AND
post_id = '".(int) $blog_post['post_id']."'";
$tmp = Database::query($sql);
$blog_post_comments = Database::fetch_array($tmp);
$fileArray = self::getBlogAttachments($blog_id, $blog_post['post_id'], 0);
$scoreRanking = Blog::displayRating('post',$blog_id,$blog_post['post_id']);
// Prepare data
$article = [
'id_blog' => $blog_post['blog_id'],
'c_id' => $blog_post['c_id'],
'id_post' => $blog_post['post_id'],
'id_autor' => $blog_post['author_id'],
'autor' => $blog_post['firstname'].' '.$blog_post['lastname'],
'username' => $blog_post['username'],
'title' => stripslashes($blog_post['title']),
'extract' => self::getPostExtract($blog_post['full_text'], BLOG_MAX_PREVIEW_CHARS),
'content' => stripslashes($blog_post['full_text']),
'post_date' => api_convert_and_format_date($blog_post['date_creation']),
'n_comments' => $blog_post_comments['number_of_comments'],
'files' => $fileArray,
'score_ranking' => $scoreRanking
];
$listArticle[] = $article;
}
return $listArticle;
} else {
if ($filter == '1=1') {
return get_lang('NoArticles');
} else {
return get_lang('NoArticleMatches');
}
}
}
/**
* Display posts from a certain date
*
* @param Integer $blog_id
* @param String $query_string
*/
public static function getDailyResults($blog_id, $query_string)
{
//$date_output = $query_string;
$date = explode('-', $query_string);
$query_string = ' DAYOFMONTH(date_creation) ='.intval($date[2]).' AND MONTH(date_creation) ='.intval(
$date[1]
).' AND YEAR(date_creation) ='.intval($date[0]);
// Put date in correct output format
//$date_output = api_format_date($date_output, DATE_FORMAT_LONG);
// Display the posts
//echo '' . get_lang('PostsOf') . ': ' . $date_output . ' ';
$list = Blog::getPosts($blog_id, $query_string);
return $list;
}
/**
* Displays a post and his comments
*
* @param Integer $blog_id
* @param Integer $post_id
*/
public static function getSinglePost($blog_id, $post_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$listComments = null;
global $charset, $dateFormatLong;
$course_id = api_get_course_int_id();
// Get posts and author
$sql = "SELECT post.*, user.lastname, user.firstname, user.username
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user
ON post.author_id = user.user_id
WHERE
post.c_id = $course_id AND
post.blog_id = '".(int) $blog_id."' AND
post.post_id = '".(int) $post_id."'
ORDER BY post_id DESC";
$result = Database::query($sql);
$blog_post = Database::fetch_array($result);
// Get number of comments
$sql = "SELECT COUNT(1) as number_of_comments
FROM $tbl_blogs_comments
WHERE c_id = $course_id AND blog_id = '".(int) $blog_id."' AND post_id = '".(int) $post_id."'";
$result = Database::query($sql);
$blog_post_comments = Database::fetch_array($result);
$blogActions = null;
$task_id = (isset($_GET['task_id']) && is_numeric($_GET['task_id'])) ? intval($_GET['task_id']) : 0;
// Display comments if there are any
if ($blog_post_comments['number_of_comments'] > 0) {
$listComments = Blog::getThreadedComments(0, 0, $blog_id, $post_id, $task_id);
}
// Display comment form
if (api_is_allowed('BLOG_'.$blog_id, 'article_comments_add')) {
$formComments = Blog::displayCommentCreateForm($blog_id, $post_id, $blog_post['title'], false);
}
// Prepare data
$fileArray = self::getBlogAttachments($blog_id, $post_id);
$post_text = make_clickable(stripslashes($blog_post['full_text']));
$post_text = stripslashes($post_text);
if (api_is_allowed('BLOG_'.$blog_id, 'article_edit', $task_id)) {
$blogActions .= '';
$blogActions .= Display::return_icon('edit.png', get_lang('Edit'), null, ICON_SIZE_TINY);
$blogActions .= ' ';
}
if (api_is_allowed('BLOG_'.$blog_id, 'article_delete', $task_id)) {
$blogActions .= '';
$blogActions .= Display::return_icon('delete.png', get_lang('Delete'), null, ICON_SIZE_TINY);
$blogActions .= ' ';
}
$scoreRanking = Blog::displayRating('post',$blog_id,$post_id);
$article = [
'id_blog' => $blog_post['blog_id'],
'c_id' => $blog_post['c_id'],
'id_post' => $blog_post['post_id'],
'id_author' => $blog_post['author_id'],
'author' => $blog_post['firstname'].' '.$blog_post['lastname'],
'username' => $blog_post['username'],
'title' => stripslashes($blog_post['title']),
'extract' => api_get_short_text_from_html(stripslashes($blog_post['full_text']), 400),
'content' => $post_text,
'post_date' => api_convert_and_format_date($blog_post['date_creation']),
'n_comments' => $blog_post_comments['number_of_comments'],
'files' => $fileArray,
'id_task' => $task_id,
'comments' => $listComments,
'form_html' => $formComments,
'actions' => $blogActions,
'score_ranking' => (int)$scoreRanking,
'frm_rating' => api_is_allowed('BLOG_'.$blog_id, 'article_rate')
? Blog::displayRatingCreateForm('post', $blog_id, $post_id)
: null
];
return $article;
}
/**
* This functions gets all replys to a post, threaded.
*
* @param Integer $current
* @param Integer $current_level
* @param Integer $blog_id
* @param Integer $post_id
*/
public static function getThreadedComments($current = 0, $current_level = 0, $blog_id, $post_id, $task_id = 0)
{
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$charset = api_get_system_encoding();
$course_id = api_get_course_int_id();
$listComments = [];
// Select top level comments
$next_level = $current_level + 1;
$sql = "SELECT comments.*, user.lastname, user.firstname, user.username, task.color
FROM $tbl_blogs_comments comments
INNER JOIN $tbl_users user
ON comments.author_id = user.user_id
LEFT JOIN $tbl_blogs_tasks task
ON comments.task_id = task.task_id AND task.c_id = $course_id
WHERE
comments.c_id = $course_id AND
parent_comment_id = $current AND
comments.blog_id = '".(int) $blog_id."' AND
comments.post_id = '".(int) $post_id."'";
$result = Database::query($sql);
$html = null;
while ($comment = Database::fetch_array($result)) {
$commentActions = null;
$ratingSelect = null;
$comment_text = make_clickable(stripslashes($comment['comment']));
$comment_text = stripslashes($comment_text);
$infoUser = UserManager::getUserPicture($comment['author_id']);
$commentActions .= Display::toolbarButton(
get_lang('ReplyToThisComment'),
'#',
'reply',
'default',
['data-id' => $comment['iid'], 'role' => 'button', 'class' => 'btn-reply-to'],
false
);
if (api_is_allowed('BLOG_'.$blog_id, 'article_comments_delete', $task_id)) {
$commentActions .= ' ';
$commentActions .= Display::returnFontAwesomeIcon('trash');
$commentActions .= ' ';
}
if (api_is_allowed('BLOG_'.$blog_id, 'article_comments_rate')) {
$ratingSelect = Blog::displayRatingCreateForm('comment', $blog_id, $post_id, $comment['comment_id']);
}
$scoreRanking = self::displayRating('comment', $blog_id, $comment['comment_id']);
//Files
$fileArray = self::getBlogAttachments($blog_id, $post_id, $comment['comment_id']);
$comments = [
'iid' => $comment['iid'],
'id_comment' => $comment['comment_id'],
'id_curso' => $comment['c_id'],
'title' => $comment['title'],
'content' => $comment_text,
'id_author' => $comment['author_id'],
'comment_date' => api_convert_and_format_date($comment['date_creation']),
'id_blog' => $comment['blog_id'],
'id_post' => $comment['post_id'],
'id_task' => $comment['task_id'],
'id_parent' => $comment['parent_comment_id'],
'name_author' => api_get_person_name($comment['firstname'], $comment['lastname']),
'info_user' => $infoUser,
'username' => $comment['username'],
'color' => $comment['color'],
'files' => $fileArray,
'actions' => $commentActions,
'form_ranking' => $ratingSelect,
'score_ranking' => $scoreRanking,
'comments' => self::getThreadedComments($comment['iid'], $next_level, $blog_id, $post_id)
];
$listComments[] = $comments;
}
return $listComments;
}
/**
* Shows the rating form if not already rated by that user
* @author Toon Keppens
*
* @param String $type
* @param Integer $blog_id
* @param integer $post_id
*/
public static function displayRatingCreateForm($type, $blog_id, $post_id, $comment_id = null)
{
$_user = api_get_user_info();
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
$html = null;
if ($type == 'post') {
// Check if the user has already rated this post
$sql = "SELECT rating_id FROM $tbl_blogs_rating
WHERE c_id = $course_id AND
blog_id = '".(int) $blog_id."'
AND item_id = '".(int) $post_id."'
AND rating_type = '".Database::escape_string($type)."'
AND user_id = '".(int) $_user['user_id']."'";
$result = Database::query($sql);
// Add rating
if (Database::num_rows($result) == 0) {
$html .= ' ';
return $html;
} else {
return '';
}
}
if ($type = 'comment') {
// Check if the user has already rated this comment
$sql = "SELECT rating_id FROM $tbl_blogs_rating
WHERE c_id = $course_id AND blog_id = '".(int) $blog_id."'
AND item_id = '".(int) $comment_id."'
AND rating_type = '".Database::escape_string($type)."'
AND user_id = '".(int) $_user['user_id']."' ";
$result = Database::query($sql);
if (Database::num_rows($result) == 0) {
$html .= '';
return $html;
} else {
return '';
}
}
}
/**
* Shows the rating of user
* @param String $type
* @param Integer $blog_id
* @param Integer $item_id
* @return array
*/
public static function displayRating($type, $blog_id, $item_id)
{
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
// Calculate rating
$sql = "SELECT AVG(rating) as rating FROM $tbl_blogs_rating
WHERE
c_id = $course_id AND
blog_id = '".(int) $blog_id."' AND
item_id = '".(int) $item_id."' AND
rating_type = '".Database::escape_string($type)."' ";
$result = Database::query($sql);
$result = Database::fetch_array($result);
return round($result['rating'], 2);
}
/**
* Displays the form to create a new post
* @author Toon Keppens
*
* @param Integer $blog_id
* @param Integer $post_id
*/
public static function displayCommentCreateForm($blog_id, $post_id)
{
$taskId = !empty($_GET['task_id']) ? (int) $_GET['task_id'] : 0;
$form = new FormValidator(
'add_post',
'post',
api_get_self().'?'.api_get_cidreq().'&'.http_build_query([
'action' => 'view_post',
'blog_id' => (int) $blog_id,
'post_id' => (int) $post_id,
'task_id' => (int) $taskId
]),
null,
array('enctype' => 'multipart/form-data')
);
$header = $taskId ? get_lang('ExecuteThisTask') : get_lang('AddNewComment');
$form->addHeader($header);
$form->addText('title', get_lang('Title'));
$config = array();
if (!api_is_allowed_to_edit()) {
$config['ToolbarSet'] = 'ProjectComment';
} else {
$config['ToolbarSet'] = 'ProjectCommentStudent';
}
$form->addHtmlEditor('comment', get_lang('Comment'), false, false, $config);
$form->addFile('user_upload', get_lang('AddAnAttachment'));
$form->addTextarea('post_file_comment', get_lang('FileComment'));
$form->addHidden('action', null);
$form->addHidden('comment_parent_id', 0);
$form->addHidden('task_id', $taskId);
$form->addButton('save', get_lang('Save'));
if ($form->validate()) {
$values = $form->exportValues();
Blog::createComment(
$values['title'],
$values['comment'],
$values['post_file_comment'],
$blog_id,
$post_id,
$values['comment_parent_id'],
$taskId
);
Display::addFlash(
Display::return_message(get_lang('CommentAdded'), 'success')
);
header(
'Location: '
.api_get_self()
.'?'
.api_get_cidreq()
.'&'
.http_build_query([
'blog_id' => $blog_id,
'post_id' => $post_id,
'action' => 'view_post',
'task_id' => $taskId
])
);
exit;
}
return $form->returnForm();
}
/**
* Adds rating to a certain post or comment
* @author Toon Keppens
*
* @param String $type
* @param Integer $blog_id
* @param Integer $item_id
* @param Integer $rating
*
* @return Boolean success
*/
public static function addRating($type, $blog_id, $item_id, $rating)
{
$_user = api_get_user_info();
// Init
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
// Check if the user has already rated this post/comment
$sql = "SELECT rating_id FROM $tbl_blogs_rating
WHERE
c_id = $course_id AND
blog_id = '".(int) $blog_id."' AND
item_id = '".(int) $item_id."' AND
rating_type = '".Database::escape_string($type)."' AND
user_id = '".(int) $_user['user_id']."'";
$result = Database::query($sql);
// Add rating
if (Database::num_rows($result) == 0) {
$sql = "INSERT INTO $tbl_blogs_rating (c_id, blog_id, rating_type, item_id, user_id, rating )
VALUES ($course_id, '".(int) $blog_id."', '".Database::escape_string(
$type
)."', '".(int) $item_id."', '".(int) $_user['user_id']."', '".Database::escape_string($rating)."')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_blogs_rating SET rating_id = iid WHERE iid = $id";
Database::query($sql);
}
return true;
} else {
return false;
}
}
/**
* Displays the form to create a new post
* @author Toon Keppens
*
* @param Integer $blog_id
*/
public static function displayPostCreateForm($blog_id)
{
$blog_id = intval($blog_id);
if (!api_is_allowed('BLOG_'.$blog_id, 'article_add')) {
api_not_allowed();
}
$form = new FormValidator(
'add_post',
'post',
api_get_path(WEB_CODE_PATH)."blog/blog.php?action=new_post&blog_id=".$blog_id."&".api_get_cidreq(),
null,
array('enctype' => 'multipart/form-data')
);
$form->addHidden('post_title_edited', 'false');
$form->addHeader(get_lang('NewPost'));
$form->addText('title', get_lang('Title'));
$config = array();
$config['ToolbarSet'] = !api_is_allowed_to_edit() ? 'ProjectStudent' : 'Project';
$form->addHtmlEditor('full_text', get_lang('Content'), false, false, $config);
$form->addFile('user_upload', get_lang('AddAnAttachment'));
$form->addTextarea('post_file_comment', get_lang('FileComment'));
$form->addHidden('new_post_submit', 'true');
$form->addButton('save', get_lang('Save'));
if ($form->validate()) {
$values = $form->exportValues();
$postId = Blog::createPost(
$values['title'],
$values['full_text'],
$values['post_file_comment'],
$blog_id
);
if ($postId) {
Display::addFlash(
Display::return_message(get_lang('BlogAdded'), 'success')
);
header('Location: '.api_get_self().'?'.api_get_cidreq().'&'.http_build_query([
'action' => 'view_post',
'blog_id' => $blog_id,
'post_id' => $postId,
]));
exit;
}
}
return $form->returnForm();
}
/**
* Displays the form to edit a post
* @author Toon Keppens
*
* @param Integer $blog_id
*/
public static function displayPostEditForm($blog_id, $post_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
// Get posts and author
$sql = "SELECT post.*, user.lastname, user.firstname
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user ON post.author_id = user.user_id
WHERE
post.c_id = $course_id AND
post.blog_id = '".(int) $blog_id."'
AND post.post_id = '".(int) $post_id."'
ORDER BY post_id DESC";
$result = Database::query($sql);
$blog_post = Database::fetch_array($result);
// Form
$form = new FormValidator(
'edit_post',
'post',
api_get_path(WEB_CODE_PATH).'blog/blog.php?action=edit_post&post_id='.intval(
$_GET['post_id']
).'&blog_id='.intval($blog_id).'&article_id='.intval($_GET['article_id']).'&task_id='.intval(
$_GET['task_id']
)
);
$form->addHeader(get_lang('EditPost'));
$form->addText('title', get_lang('Title'));
if (!api_is_allowed_to_edit()) {
$config['ToolbarSet'] = 'ProjectStudent';
} else {
$config['ToolbarSet'] = 'Project';
}
$form->addHtmlEditor('full_text', get_lang('Content'), false, false, $config);
$form->addHidden('action', '');
$form->addHidden('edit_post_submit', 'true');
$form->addHidden('post_id', intval($_GET['post_id']));
$form->addButton('save', get_lang('Save'));
$form->setDefaults($blog_post);
return $form->return_form();
}
/**
* Displays a list of tasks in this blog
* @author Toon Keppens
*
* @param int $blog_id
* @return string
*/
public static function displayTasksList($blog_id)
{
global $charset;
$course_id = api_get_course_int_id();
$html = '';
if (api_is_allowed('BLOG_'.$blog_id, 'article_add')) {
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$counter = 0;
global $color2;
$html .= '';
$html .= ''.get_lang('TaskList').' ';
$html .= "";
$html .= ""
."".get_lang('Title')." "
."".get_lang('Description')." "
."".get_lang('Color')." "
."".get_lang('Modify')." ";
$sql = " SELECT
blog_id,
task_id,
blog_id,
title,
description,
color,
system_task
FROM ".$tbl_blogs_tasks."
WHERE c_id = $course_id AND blog_id = ".(int) $blog_id."
ORDER BY system_task, title";
$result = Database::query($sql);
while ($task = Database::fetch_array($result)) {
$counter++;
$css_class = (($counter % 2) == 0) ? "row_odd" : "row_even";
$delete_icon = ($task['system_task'] == '1') ? "delete_na.png" : "delete.png";
$delete_title = ($task['system_task'] == '1') ? get_lang('DeleteSystemTask') : get_lang('DeleteTask');
$delete_link = ($task['system_task'] == '1') ? '#' : api_get_self(
).'?action=manage_tasks&blog_id='.$task['blog_id'].'&do=delete&task_id='.$task['task_id'];
$delete_confirm = ($task['system_task'] == '1') ? '' : 'onclick="javascript:if(!confirm(\''.addslashes(
api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)
).'\')) return false;"';
$html .= '';
$html .= ''.Security::remove_XSS($task['title']).' ';
$html .= ''.Security::remove_XSS($task['description']).' ';
$html .= ' ';
$html .= '';
$html .= '';
$html .= Display::return_icon('edit.png', get_lang('EditTask'));
$html .= " ";
$html .= ''.get_lang('AssignedTasks').' ';
$return .= " ";
$return .= ""
."".get_lang('Member')." "
."".get_lang('Task')." "
."".get_lang('Description')." "
."".get_lang('TargetDate')." "
."".get_lang('Modify')." "
." ";
$course_id = api_get_course_int_id();
$sql = "SELECT task_rel_user.*, task.title, user.firstname, user.lastname, user.username, task.description, task.system_task, task.blog_id, task.task_id
FROM $tbl_blogs_tasks_rel_user task_rel_user
INNER JOIN $tbl_blogs_tasks task ON task_rel_user.task_id = task.task_id
INNER JOIN $tbl_users user ON task_rel_user.user_id = user.user_id
WHERE
task_rel_user.c_id = $course_id AND
task.c_id = $course_id AND
task_rel_user.blog_id = '".(int) $blog_id."'
ORDER BY target_date ASC";
$result = Database::query($sql);
while ($assignment = Database::fetch_array($result)) {
$counter++;
$css_class = (($counter % 2) == 0) ? "row_odd" : "row_even";
$delete_icon = ($assignment['system_task'] == '1') ? "delete_na.png" : "delete.png";
$delete_title = ($assignment['system_task'] == '1') ? get_lang('DeleteSystemTask') : get_lang('DeleteTask');
$delete_link = ($assignment['system_task'] == '1') ? '#' : api_get_self(
).'?action=manage_tasks&blog_id='.$assignment['blog_id'].'&do=delete&task_id='.$assignment['task_id'];
$delete_confirm = ($assignment['system_task'] == '1') ? '' : 'onclick="javascript:if(!confirm(\''.addslashes(
api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)
).'\')) return false;"';
$username = api_htmlentities(sprintf(get_lang('LoginX'), $assignment['username']), ENT_QUOTES);
$return .='';
$return .=''.Display::tag(
'span',
api_get_person_name($assignment['firstname'], $assignment['lastname']),
array('title' => $username)
).' ';
$return .= ''.stripslashes($assignment['title']).' ';
$return .= ''.stripslashes($assignment['description']).' ';
$return .= ''.$assignment['target_date'].' ';
$return .= '';
$return .= '';
$return .= Display::return_icon('edit.png', get_lang('EditTask'));
$return .= " ";
$return .= '';
// form title
$return .= ''.get_lang('AddTask').' ';
// task title
$return .= ' ';
// task comment
$return .= '
'.get_lang('Description').'
';
// task management
$return .= '
'.get_lang('TaskManager').'
';
$return .= '
';
$return .= '
';
// task color
$return .= '
'.get_lang('Color').'
';
$return .= '';
foreach ($colors as $color) {
$style = 'style="background-color: #'.$color.'"';
$return .= ' ';
}
$return .= ' ';
$return .= '
';
// submit
$return .= ' ';
$return .= '';
$return .= '
';
return $return;
}
/**
* Displays edit task form
* @author Toon Keppens
*
*/
public static function displayTaskEditForm($blog_id, $task_id)
{
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
$colors = array(
'FFFFFF',
'FFFF99',
'FFCC99',
'FF9933',
'FF6699',
'CCFF99',
'CC9966',
'66FF00',
'9966FF',
'CF3F3F',
'990033',
'669933',
'0033FF',
'003366',
'000000',
);
$sql = "SELECT blog_id, task_id, title, description, color FROM $tbl_blogs_tasks WHERE c_id = $course_id AND task_id = '".(int) $task_id."'";
$result = Database::query($sql);
$task = Database::fetch_array($result);
// Display
$return = '';
return $return;
}
/**
* Displays assign task form
* @author Toon Keppens
*
*/
public static function displayTaskAssignmentForm($blog_id)
{
$form = self::getTaskAssignmentForm($blog_id);
$form->addHidden('assign_task_submit', 'true');
return $form->returnForm()
. PHP_EOL
. '
';
}
/**
* @param $blog_id
* @return FormValidator
*/
public static function getTaskAssignmentForm($blog_id)
{
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
// Get users in this blog / make select list of it
$sql = "SELECT user.user_id, user.firstname, user.lastname, user.username
FROM $tbl_users user
INNER JOIN $tbl_blogs_rel_user blogs_rel_user
ON user.user_id = blogs_rel_user.user_id
WHERE blogs_rel_user.c_id = $course_id AND blogs_rel_user.blog_id = '".(int) $blog_id."'";
$result = Database::query($sql);
$options = array();
while ($user = Database::fetch_array($result)) {
$options[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
}
// Get tasks in this blog / make select list of it
$sql = "
SELECT
blog_id,
task_id,
blog_id,
title,
description,
color,
system_task
FROM $tbl_blogs_tasks
WHERE c_id = $course_id AND blog_id = ".(int) $blog_id."
ORDER BY system_task, title";
$result = Database::query($sql);
$taskOptions = array();
while ($task = Database::fetch_array($result)) {
$taskOptions[$task['task_id']] = stripslashes($task['title']);
}
$form = new FormValidator(
'assign_task',
'post',
api_get_path(
WEB_CODE_PATH
).'blog/blog.php?action=manage_tasks&blog_id='.$blog_id
);
$form->addHeader(get_lang('AssignTask'));
$form->addSelect('task_user_id', get_lang('SelectUser'), $options);
$form->addSelect('task_task_id', get_lang('SelectTask'), $taskOptions);
$form->addDatePicker('task_day', get_lang('SelectTargetDate'));
$form->addHidden('action', '');
$form->addButtonSave(get_lang('Ok'));
return $form;
}
/**
* Displays assign task form
* @author Toon Keppens
*
*/
public static function displayAssignedTaskEditForm($blog_id, $task_id, $user_id)
{
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
// Get assignd date;
$sql = "
SELECT target_date
FROM $tbl_blogs_tasks_rel_user
WHERE c_id = $course_id AND
blog_id = '".(int) $blog_id."' AND
user_id = '".(int) $user_id."' AND
task_id = '".(int) $task_id."'";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
$date = $row['target_date'];
$defaults = [
'task_user_id' => $user_id,
'task_task_id' => $task_id,
'task_day' => $date,
];
$form = self::getTaskAssignmentForm($blog_id);
$form->addHidden('old_task_id', $task_id);
$form->addHidden('old_user_id', $user_id);
$form->addHidden('old_target_date', $date);
$form->addHidden('assign_task_edit_submit', 'true');
$form->setDefaults($defaults);
return $form->returnForm();
}
/**
* Assigns a task to a user in a blog
* @param int $blog_id
* @param int $user_id
* @param int $task_id
* @param string $target_date date
* @return void
*/
public static function assignTask($blog_id, $user_id, $task_id, $target_date)
{
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$user_id = intval($user_id);
$task_id = intval($task_id);
$target_date = Database::escape_string($target_date);
$sql = "
SELECT COUNT(*) as 'number'
FROM ".$tbl_blogs_tasks_rel_user."
WHERE c_id = $course_id AND
blog_id = ".(int) $blog_id."
AND user_id = ".(int) $user_id."
AND task_id = ".(int) $task_id."
";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
if ($row['number'] == 0) {
$sql = "
INSERT INTO ".$tbl_blogs_tasks_rel_user." (
c_id,
blog_id,
user_id,
task_id,
target_date
) VALUES (
'".(int) $course_id."',
'".(int) $blog_id."',
'".(int) $user_id."',
'".(int) $task_id."',
'".Database::escape_string($target_date)."'
)";
Database::query($sql);
}
}
/**
* @param $blog_id
* @param $user_id
* @param $task_id
* @param $target_date
* @param $old_user_id
* @param $old_task_id
* @param $old_target_date
*/
public static function updateAssignedTask(
$blog_id,
$user_id,
$task_id,
$target_date,
$old_user_id,
$old_task_id,
$old_target_date
) {
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
$sql = "SELECT COUNT(*) as 'number'
FROM ".$tbl_blogs_tasks_rel_user."
WHERE
c_id = $course_id AND
blog_id = ".(int) $blog_id." AND
user_id = ".(int) $user_id." AND
task_id = ".(int) $task_id."
";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
if ($row['number'] == 0 || ($row['number'] != 0 && $task_id == $old_task_id && $user_id == $old_user_id)) {
$sql = "
UPDATE ".$tbl_blogs_tasks_rel_user."
SET
user_id = ".(int) $user_id.",
task_id = ".(int) $task_id.",
target_date = '".Database::escape_string($target_date)."'
WHERE
c_id = $course_id AND
blog_id = ".(int) $blog_id." AND
user_id = ".(int) $old_user_id." AND
task_id = ".(int) $old_task_id." AND
target_date = '".Database::escape_string($old_target_date)."'
";
Database::query($sql);
}
}
/**
* Displays a list with posts a user can select to execute his task.
*
* @param int $blog_id
* @param int $task_id
* @return string
*/
public static function displayPostSelectionForTask($blog_id, $task_id)
{
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
$sql = "SELECT title, description FROM $tbl_blogs_tasks
WHERE task_id = '".(int) $task_id."'
AND c_id = $course_id";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
// Get posts and authors
$sql = "SELECT post.*, user.lastname, user.firstname, user.username
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user ON post.author_id = user.user_id
WHERE post.blog_id = '".(int) $blog_id."' AND post.c_id = $course_id
ORDER BY post_id DESC
LIMIT 0, 100";
$result = Database::query($sql);
// Display
$return = ''.get_lang('SelectTaskArticle').' "'.stripslashes($row['title']).'" ';
$return .= ''.stripslashes($row['description']).' ';
if (Database::num_rows($result) == 0) {
$return .= get_lang('NoArticles');
return $return;
}
while ($blog_post = Database::fetch_array($result)) {
$username = api_htmlentities(sprintf(get_lang('LoginX'), $blog_post['username']), ENT_QUOTES);
$return .= ' '.stripslashes(
$blog_post['title']
).' , '.get_lang('WrittenBy').' '.stripslashes(
Display::tag(
'span',
api_get_person_name($blog_post['firstname'], $blog_post['lastname']),
array('title' => $username)
)
).' ';
}
return $return;
}
/**
* Unsubscribe a user from a given blog
* @author Toon Keppens
*
* @param Integer $blog_id
* @param Integer $user_id
*/
public static function unsubscribeUser($blog_id, $user_id)
{
// Init
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$tbl_user_permissions = Database::get_course_table(TABLE_PERMISSION_USER);
// Unsubscribe the user
$sql = "DELETE FROM $tbl_blogs_rel_user
WHERE blog_id = '".(int) $blog_id."' AND user_id = '".(int) $user_id."'";
Database::query($sql);
// Remove this user's permissions.
$sql = "DELETE FROM $tbl_user_permissions
WHERE user_id = '".(int) $user_id."'";
Database::query($sql);
}
/**
* Displays the form to register users in a blog (in a course)
* The listed users are users subcribed in the course.
* @author Toon Keppens
*
* @param Integer $blog_id
*
* @return Html Form with sortable table with users to subcribe in a blog, in a course.
*/
public static function displayUserSubscriptionForm($blog_id)
{
$_course = api_get_course_info();
$is_western_name_order = api_is_western_name_order();
$session_id = api_get_session_id();
$course_id = $_course['real_id'];
$currentCourse = $_course['code'];
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$html = null;
$html .= ''.get_lang('SubscribeMembers').' ';
$properties["width"] = "100%";
// Get blog members' id.
$sql = "SELECT user.user_id FROM $tbl_users user
INNER JOIN $tbl_blogs_rel_user blogs_rel_user
ON user.user_id = blogs_rel_user.user_id
WHERE blogs_rel_user.c_id = $course_id AND blogs_rel_user.blog_id = '".intval($blog_id)."'";
$result = Database::query($sql);
$blog_member_ids = array();
while ($user = Database::fetch_array($result)) {
$blog_member_ids[] = $user['user_id'];
}
// Set table headers
$column_header[] = array('', false, '');
if ($is_western_name_order) {
$column_header[] = array(get_lang('FirstName'), true, '');
$column_header[] = array(get_lang('LastName'), true, '');
} else {
$column_header[] = array(get_lang('LastName'), true, '');
$column_header[] = array(get_lang('FirstName'), true, '');
}
$column_header[] = array(get_lang('Email'), false, '');
$column_header[] = array(get_lang('Register'), false, '');
$student_list = CourseManager:: get_student_list_from_course_code(
$currentCourse,
false,
$session_id
);
$user_data = array();
// Add users that are not in this blog to the list.
foreach ($student_list as $key => $user) {
if (isset($user['id_user'])) {
$user['user_id'] = $user['id_user'];
}
if (!in_array($user['user_id'], $blog_member_ids)) {
$a_infosUser = api_get_user_info($user['user_id']);
$row = array();
$row[] = ' ';
$username = api_htmlentities(sprintf(get_lang('LoginX'), $a_infosUser["username"]), ENT_QUOTES);
if ($is_western_name_order) {
$row[] = $a_infosUser["firstname"];
$row[] = Display::tag('span', $a_infosUser["lastname"], array('title' => $username));
} else {
$row[] = Display::tag('span', $a_infosUser["lastname"], array('title' => $username));
$row[] = $a_infosUser["firstname"];
}
$row[] = Display::icon_mailto_link($a_infosUser["email"]);
//Link to register users
if ($a_infosUser["user_id"] != $_SESSION['_user']['user_id']) {
$row[] = "".get_lang(
'Register'
)." ";
} else {
$row[] = '';
}
$user_data[] = $row;
}
}
// Display
$query_vars['action'] = 'manage_members';
$query_vars['blog_id'] = $blog_id;
$html .= '';
$html.= Display::return_sortable_table($column_header, $user_data, null, null, $query_vars);
$link = '';
$link .= isset ($_GET['action']) ? 'action='.Security::remove_XSS($_GET['action']).'&' : '';
$link .= "blog_id=$blog_id&";
$html .= ''.get_lang('SelectAll').' - ';
$html .= ''.get_lang('UnSelectAll').' ';
$html .= '';
$html .= '';
$html .= get_lang('WithSelected').' : ';
$html .= ' ';
$html .= '';
$html .= ''.get_lang('Register').' ';
$html .= ' ';
$html .= ' ';
$html .= ''.get_lang('Ok').' ';
$html .= '
';
$html .= ' ';
return $html;
}
/**
* Displays the form to register users in a blog (in a course)
* The listed users are users subcribed in the course.
* @author Toon Keppens
*
* @param Integer $blog_id
*
* @return false|null Form with sortable table with users to unsubcribe from a blog.
*/
public static function displayUserUnsubscriptionForm($blog_id)
{
$_user = api_get_user_info();
$is_western_name_order = api_is_western_name_order();
$html = null;
// Init
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$html.= ''.get_lang('UnsubscribeMembers').' ';
$properties["width"] = "100%";
//table column titles
$column_header[] = array('', false, '');
if ($is_western_name_order) {
$column_header[] = array(get_lang('FirstName'), true, '');
$column_header[] = array(get_lang('LastName'), true, '');
} else {
$column_header[] = array(get_lang('LastName'), true, '');
$column_header[] = array(get_lang('FirstName'), true, '');
}
$column_header[] = array(get_lang('Email'), false, '');
$column_header[] = array(get_lang('TaskManager'), true, '');
$column_header[] = array(get_lang('UnRegister'), false, '');
$course_id = api_get_course_int_id();
$sql = "SELECT user.user_id, user.lastname, user.firstname, user.email, user.username
FROM $tbl_users user INNER JOIN $tbl_blogs_rel_user blogs_rel_user
ON user.user_id = blogs_rel_user.user_id
WHERE blogs_rel_user.c_id = $course_id AND blogs_rel_user.blog_id = '".(int) $blog_id."'";
if (!($sql_result = Database::query($sql))) {
return false;
}
$user_data = array();
while ($myrow = Database::fetch_array($sql_result)) {
$row = array();
$row[] = ' ';
$username = api_htmlentities(sprintf(get_lang('LoginX'), $myrow["username"]), ENT_QUOTES);
if ($is_western_name_order) {
$row[] = $myrow["firstname"];
$row[] = Display::tag('span', $myrow["lastname"], array('title' => $username));
} else {
$row[] = Display::tag('span', $myrow["lastname"], array('title' => $username));
$row[] = $myrow["firstname"];
}
$row[] = Display::icon_mailto_link($myrow["email"]);
$sql = "SELECT bt.title task
FROM ".Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER)." btu
INNER JOIN ".Database::get_course_table(TABLE_BLOGS_TASKS)." bt
ON btu.task_id = bt.task_id
WHERE btu.c_id = $course_id AND
bt.c_id = $course_id AND
btu.blog_id = $blog_id AND
btu.user_id = ".$myrow['user_id'];
$sql_res = Database::query($sql);
$task = '';
while ($r = Database::fetch_array($sql_res)) {
$task .= stripslashes($r['task']).', ';
}
//echo $task;
$task = (api_strlen(trim($task)) != 0) ? api_substr($task, 0, api_strlen($task) - 2) : get_lang('Reader');
$row[] = $task;
//Link to register users
if ($myrow["user_id"] != $_user['user_id']) {
$row[] = "".get_lang(
'UnRegister'
)." ";
} else {
$row[] = '';
}
$user_data[] = $row;
}
$query_vars['action'] = 'manage_members';
$query_vars['blog_id'] = $blog_id;
$html.= '';
$html.= Display::return_sortable_table($column_header, $user_data, null, null, $query_vars);
$link = '';
$link .= isset ($_GET['action']) ? 'action='.Security::remove_XSS($_GET['action']).'&' : '';
$link .= "blog_id=$blog_id&";
$html.= ''.get_lang('SelectAll').' - ';
$html.= ''.get_lang('UnSelectAll').' ';
$html.= '';
$html.= '';
$html.= get_lang('WithSelected').' : ';
$html.= ' ';
$html.= '';
$html.= ''.get_lang('UnRegister').' ';
$html.= ' ';
$html.= ' ';
$html.= ''.get_lang('Ok').' ';
$html.= '
';
$html.= ' ';
return $html;
}
/**
* Displays a matrix with selectboxes. On the left: users, on top: possible rights.
* The blog admin can thus select what a certain user can do in the current blog
*
* @param Integer $blog_id
*/
public static function displayUserRightsForm($blog_id)
{
echo ''.get_lang('RightsManager').' ';
echo ' ';
// Integration of patricks permissions system.
require_once api_get_path(SYS_CODE_PATH).'permissions/blog_permissions.inc.php';
}
/**
* show the calender of the given month
* @author Patrick Cool
* @author Toon Keppens
*
* @param Integer $month : the integer value of the month we are viewing
* @param Integer $year : the 4-digit year indication e.g. 2005
*
* @return html code
*/
public static function displayMiniMonthCalendar($month, $year, $blog_id)
{
// Init
$_user = api_get_user_info();
global $DaysShort;
global $MonthsLong;
$html = null;
$posts = array();
$tasks = array();
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$course_id = api_get_course_int_id();
//Handle leap year
$numberofdays = array(0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
if (($year % 400 == 0) or ($year % 4 == 0 and $year % 100 <> 0)) {
$numberofdays[2] = 29;
}
//Get the first day of the month
$dayone = getdate(mktime(0, 0, 0, $month, 1, $year));
$monthName = $MonthsLong[$month - 1];
//Start the week on monday
$startdayofweek = $dayone['wday'] <> 0 ? ($dayone['wday'] - 1) : 6;
$blogId = isset($_GET['blog_id']) ? intval($_GET['blog_id']) : null;
$filter = isset($_GET['filter']) ? Security::remove_XSS($_GET['filter']) : null;
$backwardsURL = api_get_self(
)."?blog_id=".$blogId."&filter=".$filter."&month=".($month == 1 ? 12 : $month - 1)."&year=".($month == 1 ? $year - 1 : $year);
$forewardsURL = api_get_self(
)."?blog_id=".$blogId."&filter=".$filter."&month=".($month == 12 ? 1 : $month + 1)."&year=".($month == 12 ? $year + 1 : $year);
// Get posts for this month
$sql = "SELECT post.*, DAYOFMONTH(date_creation) as post_day, user.lastname, user.firstname
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user
ON post.author_id = user.user_id
WHERE
post.c_id = $course_id AND
post.blog_id = '".(int) $blog_id."' AND
MONTH(date_creation) = '".(int) $month."' AND
YEAR(date_creation) = '".(int) $year."'
ORDER BY date_creation";
$result = Database::query($sql);
// We will create an array of days on which there are posts.
if (Database::num_rows($result) > 0) {
while ($blog_post = Database::fetch_array($result)) {
// If the day of this post is not yet in the array, add it.
if (!in_array($blog_post['post_day'], $posts)) {
$posts[] = $blog_post['post_day'];
}
}
}
// Get tasks for this month
if ($_user['user_id']) {
$sql = " SELECT task_rel_user.*, DAYOFMONTH(target_date) as task_day, task.title, blog.blog_name
FROM $tbl_blogs_tasks_rel_user task_rel_user
INNER JOIN $tbl_blogs_tasks task ON task_rel_user.task_id = task.task_id
INNER JOIN $tbl_blogs blog ON task_rel_user.blog_id = blog.blog_id
WHERE
task_rel_user.c_id = $course_id AND
task.c_id = $course_id AND
blog.c_id = $course_id AND
task_rel_user.user_id = '".(int) $_user['user_id']."' AND
MONTH(target_date) = '".(int) $month."' AND
YEAR(target_date) = '".(int) $year."'
ORDER BY target_date ASC";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
while ($mytask = Database::fetch_array($result)) {
$tasks[$mytask['task_day']][$mytask['task_id']]['task_id'] = $mytask['task_id'];
$tasks[$mytask['task_day']][$mytask['task_id']]['title'] = $mytask['title'];
$tasks[$mytask['task_day']][$mytask['task_id']]['blog_id'] = $mytask['blog_id'];
$tasks[$mytask['task_day']][$mytask['task_id']]['blog_name'] = $mytask['blog_name'];
$tasks[$mytask['task_day']][$mytask['task_id']]['day'] = $mytask['task_day'];
}
}
}
$html .= '
«
'.$monthName.' '.$year.'
» ';
$html .= '';
for ($ii = 1; $ii < 8; $ii++) {
$html .= ''.$DaysShort[$ii % 7].' ';
}
$html .= ' ';
$curday = -1;
$today = getdate();
while ($curday <= $numberofdays[$month]) {
$html .= '';
for ($ii = 0; $ii < 7; $ii++) {
if (($curday == -1) && ($ii == $startdayofweek)) {
$curday = 1;
}
if (($curday > 0) && ($curday <= $numberofdays[$month])) {
$bgcolor = $ii < 5 ? $class = "class=\"days_week\"" : $class = "class=\"days_weekend\"";
$dayheader = "$curday";
if (($curday == $today['mday']) && ($year == $today['year']) && ($month == $today['mon'])) {
$dayheader = "$curday";
$class = "class=\"days_today\"";
}
$html .= '';
// If there are posts on this day, create a filter link.
if (in_array($curday, $posts)) {
$html .= ''.$curday.' ';
} else {
$html .= $dayheader;
}
if (count($tasks) > 0) {
if (isset($tasks[$curday]) && is_array($tasks[$curday])) {
// Add tasks to calendar
foreach ($tasks[$curday] as $task) {
$html .= '';
$html .= Display::return_icon('blog_task.gif', get_lang('ExecuteThisTask'));
$html .= ' ';
}
}
}
$html .= ' ';
$curday++;
} else {
$html .= ' ';
}
}
$html .= ' ';
}
$html .= '
';
return $html;
}
/**
* Blog admin | Display the form to add a new blog.
* @return void (direct output)
*/
public static function displayBlogCreateForm()
{
$form = new FormValidator('add_blog', 'post', 'blog_admin.php?action=add');
$form->addElement('header', get_lang('AddBlog'));
$form->addElement('text', 'blog_name', get_lang('Title'));
$form->addElement('textarea', 'blog_subtitle', get_lang('SubTitle'));
$form->addElement('hidden', 'new_blog_submit', 'true');
$form->addButtonSave(get_lang('SaveProject'));
$defaults = array(
'blog_name' => isset($_POST['blog_name']) ? Security::remove_XSS($_POST['blog_name']) : null,
'blog_subtitle' => isset($_POST['blog_subtitle']) ? Security::remove_XSS($_POST['blog_subtitle']) : null,
);
$form->setDefaults($defaults);
$form->display();
}
/**
* Blog admin | Display the form to edit a blog.
*
*/
public static function displayBlogEditForm($blog_id)
{
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$sql = "SELECT blog_id, blog_name, blog_subtitle
FROM $tbl_blogs
WHERE c_id = $course_id AND blog_id = '".$blog_id."'";
$result = Database::query($sql);
$blog = Database::fetch_array($result);
// the form contained errors but we do not want to lose the changes the user already did
if ($_POST) {
$blog['blog_name'] = Security::remove_XSS($_POST['blog_name']);
$blog['blog_subtitle'] = Security::remove_XSS($_POST['blog_subtitle']);
}
$form = new FormValidator('edit_blog', 'post', 'blog_admin.php?action=edit&blog_id='.intval($_GET['blog_id']));
$form->addElement('header', get_lang('EditBlog'));
$form->addElement('text', 'blog_name', get_lang('Title'));
$form->addElement('textarea', 'blog_subtitle', get_lang('SubTitle'));
$form->addElement('hidden', 'edit_blog_submit', 'true');
$form->addElement('hidden', 'blog_id', $blog['blog_id']);
$form->addButtonSave(get_lang('Save'));
$defaults = array();
$defaults['blog_name'] = $blog['blog_name'];
$defaults['blog_subtitle'] = $blog['blog_subtitle'];
$form->setDefaults($defaults);
$form->display();
}
/**
* Blog admin | Returns table with blogs in this course
* @return void Direct output
*/
public static function displayBlogsList()
{
global $charset;
$_user = api_get_user_info();
$course_id = api_get_course_int_id();
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
//condition for the session
$session_id = api_get_session_id();
$sql = "SELECT blog_name, blog_subtitle, visibility, blog_id, session_id
FROM $tbl_blogs WHERE c_id = $course_id
ORDER BY date_creation DESC";
$result = Database::query($sql);
$list_info = array();
if (Database::num_rows($result)) {
while ($row_project = Database::fetch_row($result)) {
$list_info[] = $row_project;
}
}
$list_content_blog = array();
$list_body_blog = array();
if (is_array($list_info)) {
foreach ($list_info as $key => $info_log) {
// Validation when belongs to a session
$session_img = api_get_session_image($info_log[4], $_user['status']);
$url_start_blog = 'blog.php'."?"."blog_id=".$info_log[3]."&".api_get_cidreq();
$title = $info_log[0];
$image = Display::return_icon('blog.png', $title);
$list_name = ''.$title.' '.$session_img;
$list_body_blog[] = $list_name;
$list_body_blog[] = $info_log[1];
$visibility_icon = ($info_log[2] == 0) ? 'invisible' : 'visible';
$visibility_info = ($info_log[2] == 0) ? 'Visible' : 'Invisible';
$my_image = '';
$my_image .= Display::return_icon('edit.png', get_lang('EditBlog'));
$my_image .= " ";
$my_image .= '';
$my_image .= Display::return_icon('delete.png', get_lang('DeleteBlog'));
$my_image .= " ";
$my_image .= '';
$my_image .= Display::return_icon($visibility_icon.'.gif', get_lang($visibility_info));
$my_image .= " ";
$list_body_blog[] = $my_image;
$list_content_blog[] = $list_body_blog;
$list_body_blog = array();
}
$table = new SortableTableFromArrayConfig($list_content_blog, 1, 20, 'project');
$table->set_header(0, get_lang('Title'));
$table->set_header(1, get_lang('SubTitle'));
$table->set_header(2, get_lang('Modify'));
$table->display();
}
}
/**
* Filter the post $fullText to get a extract of $length characters
* @param string $fullText
* @param int $length
* @return null|string
*/
public static function getBlogAttachments($blog_id, $post_id = 0, $comment_id = 0)
{
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$blog_id = intval($blog_id);
$comment_id = intval($comment_id);
$post_id = intval($post_id);
$row = array();
$where = '';
if (!empty ($post_id) && is_numeric($post_id)) {
$where .= " AND post_id = $post_id ";
}
if (!empty ($comment_id) && is_numeric($comment_id)) {
if (!empty ($post_id)) {
$where .= ' AND ';
}
$where .= " comment_id = $comment_id ";
}
$course_id = api_get_course_int_id();
$sql = "SELECT path, filename, comment FROM $blog_table_attachment
WHERE c_id = $course_id AND blog_id = $blog_id $where";
$result = Database::query($sql);
if (Database::num_rows($result) != 0) {
$row = Database::fetch_array($result);
}
return $row;
}
/**
* Delete the all the attachments according the parameters.
* @param int $blog_id
* @param int $post_id post's id
* @param int $comment_id the comment's id
* @return void
* @author Julio Montoya
* @version avril 2008, dokeos 1.8.5
*/
public static function deleteAllBlogAttachments(
$blog_id,
$post_id = 0,
$comment_id = 0
) {
$_course = api_get_course_info();
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$blog_id = intval($blog_id);
$comment_id = intval($comment_id);
$post_id = intval($post_id);
$course_id = api_get_course_int_id();
$where = null;
// delete files in DB
if (!empty ($post_id) && is_numeric($post_id)) {
$where .= ' AND post_id ="'.$post_id.'" ';
}
if (!empty ($comment_id) && is_numeric($comment_id)) {
if (!empty ($post_id)) {
$where .= ' AND ';
}
$where .= ' comment_id ="'.$comment_id.'" ';
}
// delete all files in directory
$courseDir = $_course['path'].'/upload/blog';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$updir = $sys_course_path.$courseDir;
$sql = 'SELECT path FROM '.$blog_table_attachment.'
WHERE c_id = '.$course_id.' AND blog_id ="'.intval($blog_id).'" '.$where;
$result = Database::query($sql);
while ($row = Database::fetch_row($result)) {
$file = $updir.'/'.$row[0];
if (Security::check_abs_path($file, $updir)) {
@ unlink($file);
}
}
$sql = 'DELETE FROM '.$blog_table_attachment.'
WHERE c_id = '.$course_id.' AND blog_id ="'.intval($blog_id).'" '.$where;
Database::query($sql);
}
/**
* Gets all the post from a given user id
* @param int $courseId
* @param int $userId
* @param string $courseCode
* @return string
*/
public static function getBlogPostFromUser($courseId, $userId, $courseCode)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blog_post = Database::get_course_table(TABLE_BLOGS_POSTS);
$courseId = intval($courseId);
$userId = intval($userId);
$sql = "SELECT DISTINCT blog.blog_id, post_id, title, full_text, post.date_creation
FROM $tbl_blogs blog
INNER JOIN $tbl_blog_post post
ON (blog.blog_id = post.blog_id)
WHERE
blog.c_id = $courseId AND
post.c_id = $courseId AND
author_id = $userId AND visibility = 1
ORDER BY post.date_creation DESC ";
$result = Database::query($sql);
$return_data = '';
if (Database::num_rows($result) != 0) {
while ($row = Database::fetch_array($result)) {
$return_data .= '
';
$return_data .= ''.Display::return_icon(
'blog_article.png',
get_lang('BlogPosts')
).' '.$row['title'].'
';
$return_data .= ' ';
$return_data .= $row['full_text'];
$return_data .= ' ';
}
}
return $return_data;
}
/**
* Gets all the post comments from a given user id
* @param int $courseId
* @param int $userId
* @param string $courseCode
* @return string
*/
public static function getBlogCommentsFromUser($courseId, $userId, $courseCode)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blog_comment = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$userId = intval($userId);
$courseId = intval($courseId);
$sql = "SELECT DISTINCT blog.blog_id, comment_id, title, comment, comment.date_creation
FROM $tbl_blogs blog INNER JOIN $tbl_blog_comment comment
ON (blog.blog_id = comment.blog_id)
WHERE blog.c_id = $courseId AND
comment.c_id = $courseId AND
author_id = $userId AND
visibility = 1
ORDER BY blog_name";
$result = Database::query($sql);
$return_data = '';
if (Database::num_rows($result) != 0) {
while ($row = Database::fetch_array($result)) {
$return_data .= '
';
$return_data .= '';
$return_data .= ' ';
$return_data .= $row['comment'];
$return_data .= ' ';
}
}
return $return_data;
}
/**
* Filter the post $fullText to get a extract of $length characters
* @param string $fullText
* @param int $length
* @return null|string
*/
private static function getPostExtract($fullText, $length = BLOG_MAX_PREVIEW_CHARS)
{
$parts = explode(BLOG_PAGE_BREAK, $fullText);
if (count($parts) > 1) {
return $parts[0];
}
// Remove any HTML from the string
$text = strip_tags($fullText);
$text = api_html_entity_decode($text);
// Replace end of lines with spaces
$text = preg_replace('/\s+/', ' ', $text);
// Count whitespaces to add to the cut() call below
$countBlanks = substr_count($text, ' ');
// Get a version of the string without spaces for comparison purposes
$textWithoutBlanks = str_replace(' ', '', $text);
// utf8_decode replaces non-ISO chars by '?' which avoids counting
// multi-byte characters as more than one character
$stringLength = strlen(utf8_decode($textWithoutBlanks));
if ($stringLength <= $length) {
return null;
}
// Cut the string to the BLOG_MAX_PREVIEX_CHARS limit, adding
// whitespaces
$extract = cut($text, $length + $countBlanks);
// Return an HTML string for printing
return api_htmlentities($extract);
}
}