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Developer Documentation

See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
/blog/ -> lib.php (source)

Functions that are not part of a class:

blog_user_can_edit_entry($blogentry)   X-Ref
User can edit a blog entry if this is their own blog entry and they have
the capability moodle/blog:create, or if they have the capability
moodle/blog:manageentries.

This also applies to deleting of entries.

blog_user_can_view_user_entry($targetuserid, $blogentry=null)   X-Ref
Checks to see if a user can view the blogs of another user.
Only blog level is checked here, the capabilities are enforced
in blog/index.php


blog_remove_associations_for_user($userid)   X-Ref
remove all associations for the blog entries of a particular user

param: int userid - id of user whose blog associations will be deleted

blog_remove_associations_for_course($courseid)   X-Ref
remove all associations for the blog entries of a particular course

param: int courseid - id of user whose blog associations will be deleted

blog_remove_associations_for_module($modcontextid)   X-Ref
Remove module associated blogs and blog tag instances.

param: int $modcontextid Module context ID.

blog_sync_external_entries($externalblog)   X-Ref
Given a record in the {blog_external} table, checks the blog's URL
for new entries not yet copied into Moodle.
Also attempts to identify and remove deleted blog entries

param: object $externalblog
return: boolean False if the Feed is invalid

blog_delete_external_entries($externalblog)   X-Ref
Given an external blog object, deletes all related blog entries from the post table.
NOTE: The external blog's id is saved as post.content, a field that is not oterhwise used by blog entries.

param: object $externablog

blog_is_enabled_for_user()   X-Ref
This function checks that blogs are enabled, and that the user can see blogs at all

return: bool

blog_get_all_options(moodle_page $page, stdClass $userid = null)   X-Ref
This function gets all of the options available for the current user in respect
to blogs.

It loads the following if applicable:
-  Module options {@see blog_get_options_for_module}
-  Course options {@see blog_get_options_for_course}
-  User specific options {@see blog_get_options_for_user}
-  General options (BLOG_LEVEL_GLOBAL)

param: moodle_page $page The page to load for (normally $PAGE)
param: stdClass $userid Load for a specific user
return: array An array of options organised by type.

blog_get_options_for_user(stdClass $user=null)   X-Ref
Get all of the blog options that relate to the passed user.

If no user is passed the current user is assumed.

param: stdClass $user
return: array The array of options for the requested user

blog_get_options_for_course(stdClass $course, stdClass $user=null)   X-Ref
Get the blog options that relate to the given course for the given user.

param: stdClass $course The course to load options for
param: stdClass $user The user to load options for null == current user
return: array The array of options

blog_get_options_for_module($module, $user=null)   X-Ref
Get the blog options relating to the given module for the given user

param: stdClass|cm_info $module The module to get options for
param: stdClass $user The user to get options for null == currentuser
return: array

blog_get_headers($courseid=null, $groupid=null, $userid=null, $tagid=null, $tag=null, $modid=null, $entryid=null,$search = null)   X-Ref
This function encapsulates all the logic behind the complex
navigation, titles and headings of the blog listing page, depending
on URL params. It looks at URL params and at the current context level.
It builds and returns an array containing:

1. heading: The heading displayed above the blog entries
2. stradd:  The text to be used as the "Add entry" link
3. strview: The text to be used as the "View entries" link
4. url:     The moodle_url object used as the base for add and view links
5. filters: An array of parameters used to filter blog listings. Used by index.php and the Recent blogs block

All other variables are set directly in $PAGE

It uses the current URL to build these variables.
A number of mutually exclusive use cases are used to structure this function.

param: int $courseid   course id the the blog is associated to (can be null).
param: int $groupid    group id to filter blogs I can see (can be null)
param: int $userid     blog author id (can be null)
param: int $tagid      tag id to filter (can be null)
param: string $tag     tag name to filter (can be null)
param: int $modid      module id the blog is associated to (can be null).
param: int $entryid    blog entry id to filter(can be null)
param: string $search  string to search (can be null)
return: array

blog_get_associated_count($courseid, $cmid=null)   X-Ref
Shortcut function for getting a count of blog entries associated with a course or a module

param: int $courseid The ID of the course
param: int $cmid The ID of the course_modules
return: string The number of associated entries

blog_comment_permissions($commentparam)   X-Ref
Running addtional permission check on plugin, for example, plugins
may have switch to turn on/off comments option, this callback will
affect UI display, not like pluginname_comment_validate only throw
exceptions.
blog_comment_validate will be called before viewing/adding/deleting
comment, so don't repeat checks.
Capability check has been done in comment->check_permissions(), we
don't need to do it again here.

param: stdClass $commentparam {
return: array

blog_comment_validate($commentparam)   X-Ref
Validate comment parameter before perform other comments actions

param: stdClass $comment {
return: boolean

blog_page_type_list($pagetype, $parentcontext, $currentcontext)   X-Ref
Return a list of page types

param: string $pagetype current page type
param: stdClass $parentcontext Block's parent context
param: stdClass $currentcontext Current context of block

core_blog_myprofile_navigation(core_user\output\myprofile\tree $tree, $user, $iscurrentuser, $course)   X-Ref
Add nodes to myprofile page.

param: \core_user\output\myprofile\tree $tree Tree object
param: stdClass $user user object
param: bool $iscurrentuser
param: stdClass $course Course object
return: bool

blog_get_tagged_posts($tag, $exclusivemode = false, $fromctx = 0, $ctx = 0, $rec = true, $page = 0)   X-Ref
Returns posts tagged with a specified tag.

param: core_tag_tag $tag
param: bool $exclusivemode if set to true it means that no other entities tagged with this tag
param: int $fromctx context id where the link was displayed, may be used by callbacks
param: int $ctx context id where to search for records
param: bool $rec search in subcontexts as well
param: int $page 0-based number of page being displayed
return: \core_tag\output\tagindex

blog_validate_access($courseid, $modid, $groupid, $entryid, $userid)   X-Ref
Validate the access to a blog.

param: int $courseid course id the the blog is associated to (can be null).
param: int $modid    module id the blog is associated to (can be null).
param: int $groupid  group id to filter blogs I can see (can be null)
param: int $entryid  blog entry id (can be null)
param: int $userid   blog author id (can be null)
return: array with the calculated course and id