gitlab-org--gitlab-foss/app/services/todo_service.rb

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# TodoService class
#
# Used for creating/updating todos after certain user actions
#
# Ex.
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# TodoService.new.new_issue(issue, current_user)
#
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class TodoService
# When create an issue we should:
#
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# * create a todo for assignee if issue is assigned
# * create a todo for each mentioned user on issue
#
def new_issue(issue, current_user)
new_issuable(issue, current_user)
end
# When update an issue we should:
#
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# * mark all pending todos related to the issue for the current user as done
#
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def update_issue(issue, current_user, skip_users = [])
update_issuable(issue, current_user, skip_users)
end
# When close an issue we should:
#
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# * mark all pending todos related to the target for the current user as done
#
def close_issue(issue, current_user)
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mark_pending_todos_as_done(issue, current_user)
end
# When we destroy a todo target we should:
#
# * refresh the todos count cache for all users with todos on the target
#
# This needs to yield back to the caller to destroy the target, because it
# collects the todo users before the todos themselves are deleted, then
# updates the todo counts for those users.
#
def destroy_target(target)
todo_users = User.where(id: target.todos.pending.select(:user_id)).to_a
yield target
todo_users.each(&:update_todos_count_cache)
end
# When we reassign an issue we should:
#
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# * create a pending todo for new assignee if issue is assigned
#
def reassigned_issue(issue, current_user, old_assignees = [])
create_assignment_todo(issue, current_user, old_assignees)
end
# When create a merge request we should:
#
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# * creates a pending todo for assignee if merge request is assigned
# * create a todo for each mentioned user on merge request
#
def new_merge_request(merge_request, current_user)
new_issuable(merge_request, current_user)
end
# When update a merge request we should:
#
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# * create a todo for each mentioned user on merge request
#
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def update_merge_request(merge_request, current_user, skip_users = [])
update_issuable(merge_request, current_user, skip_users)
end
# When close a merge request we should:
#
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# * mark all pending todos related to the target for the current user as done
#
def close_merge_request(merge_request, current_user)
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mark_pending_todos_as_done(merge_request, current_user)
end
# When we reassign a merge request we should:
#
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# * creates a pending todo for new assignee if merge request is assigned
#
def reassigned_merge_request(merge_request, current_user)
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create_assignment_todo(merge_request, current_user)
end
# When merge a merge request we should:
#
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# * mark all pending todos related to the target for the current user as done
#
def merge_merge_request(merge_request, current_user)
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mark_pending_todos_as_done(merge_request, current_user)
end
# When a build fails on the HEAD of a merge request we should:
#
# * create a todo for author of MR to fix it
# * create a todo for merge_user to keep an eye on it
#
def merge_request_build_failed(merge_request)
create_build_failed_todo(merge_request, merge_request.author)
create_build_failed_todo(merge_request, merge_request.merge_user) if merge_request.merge_when_pipeline_succeeds?
end
# When a new commit is pushed to a merge request we should:
#
# * mark all pending todos related to the merge request for that user as done
#
def merge_request_push(merge_request, current_user)
mark_pending_todos_as_done(merge_request, current_user)
end
# When a build is retried to a merge request we should:
#
# * mark all pending todos related to the merge request for the author as done
# * mark all pending todos related to the merge request for the merge_user as done
#
def merge_request_build_retried(merge_request)
mark_pending_todos_as_done(merge_request, merge_request.author)
mark_pending_todos_as_done(merge_request, merge_request.merge_user) if merge_request.merge_when_pipeline_succeeds?
end
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# When a merge request could not be automatically merged due to its unmergeable state we should:
#
# * create a todo for a merge_user
#
def merge_request_became_unmergeable(merge_request)
create_unmergeable_todo(merge_request, merge_request.merge_user) if merge_request.merge_when_pipeline_succeeds?
end
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# When create a note we should:
#
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# * mark all pending todos related to the noteable for the note author as done
# * create a todo for each mentioned user on note
#
def new_note(note, current_user)
handle_note(note, current_user)
end
# When update a note we should:
#
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# * mark all pending todos related to the noteable for the current user as done
# * create a todo for each new user mentioned on note
#
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def update_note(note, current_user, skip_users = [])
handle_note(note, current_user, skip_users)
end
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# When an emoji is awarded we should:
#
# * mark all pending todos related to the awardable for the current user as done
#
def new_award_emoji(awardable, current_user)
mark_pending_todos_as_done(awardable, current_user)
end
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# When marking pending todos as done we should:
#
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# * mark all pending todos related to the target for the current user as done
#
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def mark_pending_todos_as_done(target, user)
attributes = attributes_for_target(target)
pending_todos(user, attributes).update_all(state: :done)
user.update_todos_count_cache
end
# When user marks some todos as done
def mark_todos_as_done(todos, current_user)
update_todos_state(todos, current_user, :done)
end
def mark_todos_as_done_by_ids(ids, current_user)
todos = todos_by_ids(ids, current_user)
mark_todos_as_done(todos, current_user)
end
# When user marks some todos as pending
def mark_todos_as_pending(todos, current_user)
update_todos_state(todos, current_user, :pending)
end
def mark_todos_as_pending_by_ids(ids, current_user)
todos = todos_by_ids(ids, current_user)
mark_todos_as_pending(todos, current_user)
end
# When user marks an issue as todo
def mark_todo(issuable, current_user)
attributes = attributes_for_todo(issuable.project, issuable, current_user, Todo::MARKED)
create_todos(current_user, attributes)
end
def todo_exist?(issuable, current_user)
TodosFinder.new(current_user).execute.exists?(target: issuable)
end
private
def todos_by_ids(ids, current_user)
current_user.todos.where(id: Array(ids))
end
def update_todos_state(todos, current_user, state)
# Only update those that are not really on that state
todos = todos.where.not(state: state)
todos_ids = todos.pluck(:id)
todos.unscope(:order).update_all(state: state)
current_user.update_todos_count_cache
todos_ids
end
def create_todos(users, attributes)
Array(users).map do |user|
next if pending_todos(user, attributes).exists?
todo = Todo.create(attributes.merge(user_id: user.id))
user.update_todos_count_cache
todo
end
end
def new_issuable(issuable, author)
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create_assignment_todo(issuable, author)
create_mention_todos(issuable.project, issuable, author)
end
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def update_issuable(issuable, author, skip_users = [])
# Skip toggling a task list item in a description
return if toggling_tasks?(issuable)
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create_mention_todos(issuable.project, issuable, author, nil, skip_users)
end
def toggling_tasks?(issuable)
issuable.previous_changes.include?('description') &&
issuable.tasks? && issuable.updated_tasks.any?
end
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def handle_note(note, author, skip_users = [])
return unless note.can_create_todo?
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project = note.project
target = note.noteable
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mark_pending_todos_as_done(target, author)
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create_mention_todos(project, target, author, note, skip_users)
end
def create_assignment_todo(issuable, author, old_assignees = [])
if issuable.assignees.any?
assignees = issuable.assignees - old_assignees
attributes = attributes_for_todo(issuable.project, issuable, author, Todo::ASSIGNED)
create_todos(assignees, attributes)
end
end
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def create_mention_todos(project, target, author, note = nil, skip_users = [])
# Create Todos for directly addressed users
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directly_addressed_users = filter_directly_addressed_users(project, note || target, author, skip_users)
attributes = attributes_for_todo(project, target, author, Todo::DIRECTLY_ADDRESSED, note)
create_todos(directly_addressed_users, attributes)
# Create Todos for mentioned users
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mentioned_users = filter_mentioned_users(project, note || target, author, skip_users)
attributes = attributes_for_todo(project, target, author, Todo::MENTIONED, note)
create_todos(mentioned_users, attributes)
end
def create_build_failed_todo(merge_request, todo_author)
attributes = attributes_for_todo(merge_request.project, merge_request, todo_author, Todo::BUILD_FAILED)
create_todos(todo_author, attributes)
end
def create_unmergeable_todo(merge_request, merge_user)
attributes = attributes_for_todo(merge_request.project, merge_request, merge_user, Todo::UNMERGEABLE)
create_todos(merge_user, attributes)
end
def attributes_for_target(target)
attributes = {
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project_id: target&.project&.id,
target_id: target.id,
target_type: target.class.name,
commit_id: nil
}
if target.is_a?(Commit)
attributes.merge!(target_id: nil, commit_id: target.id)
end
attributes
end
def attributes_for_todo(project, target, author, action, note = nil)
attributes_for_target(target).merge!(
project_id: project.id,
author_id: author.id,
action: action,
note: note
)
end
def filter_todo_users(users, project, target)
reject_users_without_access(users, project, target).uniq
end
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def filter_mentioned_users(project, target, author, skip_users = [])
mentioned_users = target.mentioned_users(author) - skip_users
filter_todo_users(mentioned_users, project, target)
end
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def filter_directly_addressed_users(project, target, author, skip_users = [])
directly_addressed_users = target.directly_addressed_users(author) - skip_users
filter_todo_users(directly_addressed_users, project, target)
end
def reject_users_without_access(users, project, target)
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if target.is_a?(Note) && (target.for_issue? || target.for_merge_request?)
target = target.noteable
end
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if target.is_a?(Issuable)
select_users(users, :"read_#{target.to_ability_name}", target)
else
select_users(users, :read_project, project)
end
end
def select_users(users, ability, subject)
users.select do |user|
user.can?(ability.to_sym, subject)
end
end
def pending_todos(user, criteria = {})
valid_keys = [:project_id, :target_id, :target_type, :commit_id]
user.todos.pending.where(criteria.slice(*valid_keys))
end
end