debian-mirror-gitlab/app/finders/issuable_finder.rb

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# frozen_string_literal: true
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# IssuableFinder
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#
# Used to filter Issues and MergeRequests collections by set of params
#
# Arguments:
# klass - actual class like Issue or MergeRequest
# current_user - which user use
# params:
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# scope: 'created_by_me' or 'assigned_to_me' or 'all'
# state: 'opened' or 'closed' or 'locked' or 'all'
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# group_id: integer
# project_id: integer
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# milestone_title: string
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# author_id: integer
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# author_username: string
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# assignee_id: integer or 'None' or 'Any'
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# assignee_username: string
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# search: string
# label_name: string
# sort: string
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# non_archived: boolean
# iids: integer[]
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# my_reaction_emoji: string
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# created_after: datetime
# created_before: datetime
# updated_after: datetime
# updated_before: datetime
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# attempt_group_search_optimizations: boolean
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#
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class IssuableFinder
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prepend FinderWithCrossProjectAccess
include FinderMethods
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include CreatedAtFilter
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include Gitlab::Utils::StrongMemoize
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requires_cross_project_access unless: -> { project? }
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# This is used as a common filter for None / Any
FILTER_NONE = 'none'.freeze
FILTER_ANY = 'any'.freeze
# This is accepted as a deprecated filter and is also used in unassigning users
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NONE = '0'.freeze
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attr_accessor :current_user, :params
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def self.scalar_params
@scalar_params ||= %i[
assignee_id
assignee_username
author_id
author_username
label_name
milestone_title
my_reaction_emoji
search
]
end
def self.array_params
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@array_params ||= { label_name: [], assignee_username: [] }
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end
def self.valid_params
@valid_params ||= scalar_params + [array_params]
end
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def initialize(current_user, params = {})
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@current_user = current_user
@params = params
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end
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def execute
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items = init_collection
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items = filter_items(items)
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# This has to be last as we may use a CTE as an optimization fence
# by passing the attempt_group_search_optimizations param and
# enabling the use_cte_for_group_issues_search feature flag
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# https://www.postgresql.org/docs/current/static/queries-with.html
items = by_search(items)
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sort(items)
end
def filter_items(items)
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items = by_project(items)
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items = by_group(items)
items = by_subquery(items)
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items = by_scope(items)
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items = by_created_at(items)
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items = by_updated_at(items)
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items = by_state(items)
items = by_group(items)
items = by_assignee(items)
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items = by_author(items)
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items = by_non_archived(items)
items = by_iids(items)
items = by_milestone(items)
items = by_label(items)
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by_my_reaction_emoji(items)
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end
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def row_count
Gitlab::IssuablesCountForState.new(self).for_state_or_opened(params[:state])
end
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# We often get counts for each state by running a query per state, and
# counting those results. This is typically slower than running one query
# (even if that query is slower than any of the individual state queries) and
# grouping and counting within that query.
#
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# rubocop: disable CodeReuse/ActiveRecord
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def count_by_state
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count_params = params.merge(state: nil, sort: nil)
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finder = self.class.new(current_user, count_params)
counts = Hash.new(0)
# Searching by label includes a GROUP BY in the query, but ours will be last
# because it is added last. Searching by multiple labels also includes a row
# per issuable, so we have to count those in Ruby - which is bad, but still
# better than performing multiple queries.
#
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# This does not apply when we are using a CTE for the search, as the labels
# GROUP BY is inside the subquery in that case, so we set labels_count to 1.
labels_count = label_names.any? ? label_names.count : 1
labels_count = 1 if use_cte_for_search?
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finder.execute.reorder(nil).group(:state).count.each do |key, value|
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counts[count_key(key)] += value / labels_count
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end
counts[:all] = counts.values.sum
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counts.with_indifferent_access
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end
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# rubocop: enable CodeReuse/ActiveRecord
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def group
return @group if defined?(@group)
@group =
if params[:group_id].present?
Group.find(params[:group_id])
else
nil
end
end
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def project?
params[:project_id].present?
end
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def project
return @project if defined?(@project)
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project = Project.find(params[:project_id])
project = nil unless Ability.allowed?(current_user, :"read_#{klass.to_ability_name}", project)
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@project = project
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end
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# rubocop: disable CodeReuse/ActiveRecord
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def projects(items = nil)
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return @projects = project if project?
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projects =
if current_user && params[:authorized_only].presence && !current_user_related?
current_user.authorized_projects
elsif group
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finder_options = { include_subgroups: params[:include_subgroups], only_owned: true }
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GroupProjectsFinder.new(group: group, current_user: current_user, options: finder_options).execute # rubocop: disable CodeReuse/Finder
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else
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ProjectsFinder.new(current_user: current_user).execute # rubocop: disable CodeReuse/Finder
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end
@projects = projects.with_feature_available_for_user(klass, current_user).reorder(nil)
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end
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# rubocop: enable CodeReuse/ActiveRecord
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def search
params[:search].presence
end
def milestones?
params[:milestone_title].present?
end
def milestones
return @milestones if defined?(@milestones)
@milestones =
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if milestones?
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if project?
group_id = project.group&.id
project_id = project.id
end
group_id = group.id if group
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search_params =
{ title: params[:milestone_title], project_ids: project_id, group_ids: group_id }
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MilestonesFinder.new(search_params).execute # rubocop: disable CodeReuse/Finder
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else
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Milestone.none
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end
end
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def labels?
params[:label_name].present?
end
def filter_by_no_label?
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downcased = label_names.map(&:downcase)
# Label::NONE is deprecated and should be removed in 12.0
downcased.include?(FILTER_NONE) || downcased.include?(Label::NONE)
end
def filter_by_any_label?
label_names.map(&:downcase).include?(FILTER_ANY)
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end
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def labels
return @labels if defined?(@labels)
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@labels =
if labels? && !filter_by_no_label?
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LabelsFinder.new(current_user, project_ids: projects, title: label_names).execute(skip_authorization: true) # rubocop: disable CodeReuse/Finder
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else
Label.none
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end
end
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def assignee_id?
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params[:assignee_id].present?
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end
def assignee_username?
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params[:assignee_username].present?
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end
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# rubocop: disable CodeReuse/ActiveRecord
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def assignee
return @assignee if defined?(@assignee)
@assignee =
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if assignee_id?
User.find_by(id: params[:assignee_id])
elsif assignee_username?
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User.find_by_username(params[:assignee_username])
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else
nil
end
end
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# rubocop: enable CodeReuse/ActiveRecord
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def author_id?
params[:author_id].present? && params[:author_id] != NONE
end
def author_username?
params[:author_username].present? && params[:author_username] != NONE
end
def no_author?
# author_id takes precedence over author_username
params[:author_id] == NONE || params[:author_username] == NONE
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end
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# rubocop: disable CodeReuse/ActiveRecord
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def author
return @author if defined?(@author)
@author =
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if author_id?
User.find_by(id: params[:author_id])
elsif author_username?
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User.find_by_username(params[:author_username])
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else
nil
end
end
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# rubocop: enable CodeReuse/ActiveRecord
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def use_subquery_for_search?
strong_memoize(:use_subquery_for_search) do
attempt_group_search_optimizations? &&
Feature.enabled?(:use_subquery_for_group_issues_search, default_enabled: false)
end
end
def use_cte_for_search?
strong_memoize(:use_cte_for_search) do
attempt_group_search_optimizations? &&
!use_subquery_for_search? &&
Feature.enabled?(:use_cte_for_group_issues_search, default_enabled: true)
end
end
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private
def init_collection
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klass.all
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end
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def attempt_group_search_optimizations?
search && Gitlab::Database.postgresql? && params[:attempt_group_search_optimizations]
end
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def count_key(value)
Array(value).last.to_sym
end
# rubocop: disable CodeReuse/ActiveRecord
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def by_scope(items)
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return items.none if current_user_related? && !current_user
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case params[:scope]
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when 'created_by_me', 'authored'
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items.where(author_id: current_user.id)
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when 'assigned_to_me'
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items.assigned_to(current_user)
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else
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items
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end
end
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# rubocop: enable CodeReuse/ActiveRecord
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def by_updated_at(items)
items = items.updated_after(params[:updated_after]) if params[:updated_after].present?
items = items.updated_before(params[:updated_before]) if params[:updated_before].present?
items
end
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# rubocop: disable CodeReuse/ActiveRecord
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def by_state(items)
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case params[:state].to_s
when 'closed'
items.closed
when 'merged'
items.respond_to?(:merged) ? items.merged : items.closed
when 'opened'
items.opened
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when 'locked'
items.where(state: 'locked')
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else
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items
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end
end
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# rubocop: enable CodeReuse/ActiveRecord
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def by_group(items)
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# Selection by group is already covered by `by_project` and `projects`
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items
end
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# rubocop: disable CodeReuse/ActiveRecord
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def by_project(items)
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items =
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if project?
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items.of_projects(projects).references_project
elsif projects
items.merge(projects.reorder(nil)).join_project
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else
items.none
end
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items
end
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# rubocop: enable CodeReuse/ActiveRecord
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# Wrap projects and groups in a subquery if the conditions are met.
def by_subquery(items)
if use_subquery_for_search?
klass.where(id: items.select(:id)) # rubocop: disable CodeReuse/ActiveRecord
else
items
end
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end
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# rubocop: disable CodeReuse/ActiveRecord
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def by_search(items)
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return items unless search
if use_cte_for_search?
cte = Gitlab::SQL::RecursiveCTE.new(klass.table_name)
cte << items
items = klass.with(cte.to_arel).from(klass.table_name)
end
items.full_search(search)
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end
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# rubocop: enable CodeReuse/ActiveRecord
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# rubocop: disable CodeReuse/ActiveRecord
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def by_iids(items)
params[:iids].present? ? items.where(iid: params[:iids]) : items
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end
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# rubocop: enable CodeReuse/ActiveRecord
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# rubocop: disable CodeReuse/ActiveRecord
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def sort(items)
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# Ensure we always have an explicit sort order (instead of inheriting
# multiple orders when combining ActiveRecord::Relation objects).
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params[:sort] ? items.sort_by_attribute(params[:sort], excluded_labels: label_names) : items.reorder(id: :desc)
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end
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# rubocop: enable CodeReuse/ActiveRecord
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# rubocop: disable CodeReuse/ActiveRecord
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def by_assignee(items)
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if filter_by_no_assignee?
items.where(assignee_id: nil)
elsif filter_by_any_assignee?
items.where('assignee_id IS NOT NULL')
elsif assignee
items.where(assignee_id: assignee.id)
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elsif assignee_id? || assignee_username? # assignee not found
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items.none
else
items
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end
end
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# rubocop: enable CodeReuse/ActiveRecord
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def filter_by_no_assignee?
# Assignee_id takes precedence over assignee_username
[NONE, FILTER_NONE].include?(params[:assignee_id].to_s.downcase) || params[:assignee_username].to_s == NONE
end
def filter_by_any_assignee?
params[:assignee_id].to_s.downcase == FILTER_ANY
end
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# rubocop: disable CodeReuse/ActiveRecord
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def by_author(items)
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if author
items = items.where(author_id: author.id)
elsif no_author?
items = items.where(author_id: nil)
elsif author_id? || author_username? # author not found
items = items.none
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end
items
end
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# rubocop: enable CodeReuse/ActiveRecord
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# rubocop: disable CodeReuse/ActiveRecord
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def by_milestone(items)
if milestones?
if filter_by_no_milestone?
items = items.left_joins_milestones.where(milestone_id: [-1, nil])
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elsif filter_by_any_milestone?
items = items.any_milestone
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elsif filter_by_upcoming_milestone?
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upcoming_ids = Milestone.upcoming_ids_by_projects(projects(items))
items = items.left_joins_milestones.where(milestone_id: upcoming_ids)
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elsif filter_by_started_milestone?
items = items.left_joins_milestones.where('milestones.start_date <= NOW()')
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else
items = items.with_milestone(params[:milestone_title])
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end
end
items
end
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# rubocop: enable CodeReuse/ActiveRecord
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def filter_by_no_milestone?
# Accepts `No Milestone` for compatibility
params[:milestone_title].to_s.downcase == FILTER_NONE || params[:milestone_title] == Milestone::None.title
end
def filter_by_any_milestone?
# Accepts `Any Milestone` for compatibility
params[:milestone_title].to_s.downcase == FILTER_ANY || params[:milestone_title] == Milestone::Any.title
end
def filter_by_upcoming_milestone?
params[:milestone_title] == Milestone::Upcoming.name
end
def filter_by_started_milestone?
params[:milestone_title] == Milestone::Started.name
end
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def by_label(items)
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return items unless labels?
items =
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if filter_by_no_label?
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items.without_label
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elsif filter_by_any_label?
items.any_label
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else
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items.with_label(label_names, params[:sort])
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end
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items
end
def by_my_reaction_emoji(items)
if params[:my_reaction_emoji].present? && current_user
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items =
if filter_by_no_reaction?
items.not_awarded(current_user)
elsif filter_by_any_reaction?
items.awarded(current_user)
else
items.awarded(current_user, params[:my_reaction_emoji])
end
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end
items
end
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def filter_by_no_reaction?
params[:my_reaction_emoji].to_s.downcase == FILTER_NONE
end
def filter_by_any_reaction?
params[:my_reaction_emoji].to_s.downcase == FILTER_ANY
end
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def label_names
if labels?
params[:label_name].is_a?(String) ? params[:label_name].split(',') : params[:label_name]
else
[]
end
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end
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def by_non_archived(items)
params[:non_archived].present? ? items.non_archived : items
end
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def current_user_related?
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scope = params[:scope]
scope == 'created_by_me' || scope == 'authored' || scope == 'assigned_to_me'
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end
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end