2018-07-30 15:45:49 +00:00
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# frozen_string_literal: true
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module Autocomplete
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class UsersFinder
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# The number of users to display in the results is hardcoded to 20, and
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# pagination is not supported. This ensures that performance remains
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# consistent and removes the need for implementing keyset pagination to
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# ensure good performance.
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LIMIT = 20
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attr_reader :current_user, :project, :group, :search, :skip_users,
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:author_id, :todo_filter, :todo_state_filter,
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:filter_by_current_user
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def initialize(params:, current_user:, project:, group:)
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@current_user = current_user
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@project = project
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@group = group
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@search = params[:search]
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@skip_users = params[:skip_users]
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@author_id = params[:author_id]
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@todo_filter = params[:todo_filter]
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@todo_state_filter = params[:todo_state_filter]
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@filter_by_current_user = params[:current_user]
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end
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def execute
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items = limited_users
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if search.blank?
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# Include current user if available to filter by "Me"
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items.unshift(current_user) if prepend_current_user?
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2019-04-12 03:59:09 +00:00
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if (prepend_author? && author = User.find_by_id(author_id)) && author.active?
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2018-07-30 15:45:49 +00:00
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items.unshift(author)
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end
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end
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items.uniq
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end
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private
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# Returns the users based on the input parameters, as an Array.
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#
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# This method is separate so it is easier to extend in EE.
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2018-08-27 15:31:01 +00:00
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# rubocop: disable CodeReuse/ActiveRecord
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2018-07-30 15:45:49 +00:00
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def limited_users
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# When changing the order of these method calls, make sure that
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# reorder_by_name() is called _before_ optionally_search(), otherwise
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# reorder_by_name will break the ORDER BY applied in optionally_search().
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find_users
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.active
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.reorder_by_name
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.optionally_search(search)
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.where_not_in(skip_users)
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.limit_to_todo_authors(
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user: current_user,
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with_todos: todo_filter,
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todo_state: todo_state_filter
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)
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.limit(LIMIT)
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.to_a
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end
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2018-08-27 15:31:01 +00:00
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# rubocop: enable CodeReuse/ActiveRecord
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2018-07-30 15:45:49 +00:00
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def prepend_current_user?
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filter_by_current_user.present? && current_user
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end
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def prepend_author?
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author_id.present? && current_user
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end
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def find_users
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if project
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project.authorized_users.union_with_user(author_id)
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elsif group
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group.users_with_parents
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elsif current_user
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User.all
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else
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User.none
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end
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end
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end
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end
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