gitlab-org--gitlab-foss/lib/banzai/reference_parser/user_parser.rb
Adam Buckland ace833b31d Add indication for closed or merged issuables in GFM
Example: for issues that are closed, the links will now show '[closed]'
following the issue number. This is done as post-process after the markdown has
been loaded from the cache as the status of the issue may change between
the cache being populated and the content being displayed.

In order to avoid N+1 queries problem when rendering notes ObjectRenderer
populates the cache of referenced issuables for all notes at once,
before the post processing phase.

As a part of this change, the Banzai BaseParser#grouped_objects_for_nodes
method has been refactored to return a Hash utilising the node itself as the
key, since this was a common pattern of usage for this method.
2017-04-07 14:31:43 -05:00

111 lines
3.1 KiB
Ruby

module Banzai
module ReferenceParser
class UserParser < BaseParser
self.reference_type = :user
def referenced_by(nodes)
group_ids = []
user_ids = []
project_ids = []
nodes.each do |node|
if node.has_attribute?('data-group')
group_ids << node.attr('data-group').to_i
elsif node.has_attribute?(self.class.data_attribute)
user_ids << node.attr(self.class.data_attribute).to_i
elsif node.has_attribute?('data-project')
project_ids << node.attr('data-project').to_i
end
end
find_users_for_groups(group_ids) | find_users(user_ids) |
find_users_for_projects(project_ids)
end
def nodes_visible_to_user(user, nodes)
group_attr = 'data-group'
groups = lazy { grouped_objects_for_nodes(nodes, Group, group_attr) }
visible = []
remaining = []
nodes.each do |node|
if node.has_attribute?(group_attr)
next unless can_read_group_reference?(node, user, groups)
visible << node
elsif can_read_project_reference?(node)
visible << node
else
remaining << node
end
end
# If project does not belong to a group
# and does not have the same project id as the current project
# base class will check if user can read the project that contains
# the user reference.
visible + super(current_user, remaining)
end
# Check if project belongs to a group which
# user can read.
def can_read_group_reference?(node, user, groups)
node_group = groups[node]
node_group && can?(user, :read_group, node_group)
end
def can_read_project_reference?(node)
node_id = node.attr('data-project').to_i
project && project.id == node_id
end
def nodes_user_can_reference(current_user, nodes)
project_attr = 'data-project'
author_attr = 'data-author'
projects = lazy { projects_for_nodes(nodes) }
users = lazy { grouped_objects_for_nodes(nodes, User, author_attr) }
nodes.select do |node|
project_id = node.attr(project_attr)
user_id = node.attr(author_attr)
if project && project_id && project.id == project_id.to_i
true
elsif project_id && user_id
project = projects[node]
user = users[node]
project && user ? project.team.member?(user) : false
else
true
end
end
end
def find_users(ids)
return [] if ids.empty?
collection_objects_for_ids(User, ids)
end
def find_users_for_groups(ids)
return [] if ids.empty?
User.joins(:group_members).where(members: { source_id: ids }).to_a
end
def find_users_for_projects(ids)
return [] if ids.empty?
collection_objects_for_ids(Project, ids).
flat_map { |p| p.team.members.to_a }
end
def can_read_reference?(user, ref_project)
can?(user, :read_project, ref_project)
end
end
end
end