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# frozen_string_literal: true
module Environments
# Finder for obtaining the unique environment names of a project or group.
#
# This finder exists so that the merge requests "environments" filter can be
# populated with a unique list of environment names. If we retrieve _just_ the
# environments, duplicates may be present (e.g. multiple projects in a group
# having a "staging" environment).
#
# In addition, this finder only produces unfoldered environments. We do this
# because when searching for environments we want to exclude review app
# environments.
class EnvironmentNamesFinder
attr_reader :project_or_group, :current_user
def initialize(project_or_group, current_user = nil)
@project_or_group = project_or_group
@current_user = current_user
end
def execute
all_environments.unfoldered.order_by_name.pluck_unique_names
end
def all_environments
if project_or_group.is_a?(Namespace)
namespace_environments
else
project_environments
end
end
def namespace_environments
# We assume reporter access is needed for the :read_environment permission
# here. This expection is also present in
# IssuableFinder::Params#min_access_level, which is used for filtering out
# merge requests that don't have the right permissions.
#
# We use this approach so we don't need to load every project into memory
# just to verify if we can see their environments. Doing so would not be
# efficient, and possibly mess up pagination if certain projects are not
# meant to be visible.
projects = project_or_group
.all_projects
.public_or_visible_to_user(current_user, Gitlab::Access::REPORTER)
Environment.for_project(projects)
end
def project_environments
if Ability.allowed?(current_user, :read_environment, project_or_group)
project_or_group.environments
else
Environment.none
end
end
end
end
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