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class Ability
def self.allowed(object, subject)
case subject.class.name
when "Project" then project_abilities(object, subject)
when "Issue" then issue_abilities(object, subject)
when "Note" then note_abilities(object, subject)
when "Snippet" then snippet_abilities(object, subject)
else []
end
end
def self.project_abilities(user, project)
rules = []
rules << [
:read_project,
:read_issue,
:read_snippet,
:read_team_member,
:read_merge_request,
:read_note
] if project.readers.include?(user)
rules << [
:write_project,
:write_issue,
:write_snippet,
:write_merge_request,
:write_note
] if project.writers.include?(user)
rules << [
:admin_project,
:admin_issue,
:admin_snippet,
:admin_team_member,
:admin_merge_request,
:admin_note
] if project.admins.include?(user)
rules.flatten
end
class << self
[:issue, :note, :snippet, :merge_request].each do |name|
define_method "#{name}_abilities" do |user, subject|
if subject.author == user
[
:"read_#{name}",
:"write_#{name}",
:"admin_#{name}"
]
else
subject.respond_to?(:project) ?
project_abilities(user, subject.project) : []
end
end
end
end
end