Sha256: 01d0f91692e82e2ea23be96df030bef05b3d1f8dd8d90b867c3b9b3cf43632ac
Contents?: true
Size: 1.39 KB
Versions: 17
Compression:
Stored size: 1.39 KB
Contents
module Shamu
module Security
# Defines how an {ActiveRecord::Relation} is refined for an
# {ActiveRecordPolicy}.
class PolicyRefinement
def initialize( actions, model_class, block )
@actions = actions
@model_class = model_class
@block = block
end
# Determines if the refinement matches the request action permission on
# the given relation.
#
# @param [Symbol] action to be performed on entities projected from the
# `relation`.
# @param [ActiveRecord::Relation] relation to refine.
# @param [Object] additional context offered to {Policy#permit?}.
#
# @return [Boolean] true if the rule is a match.
def match?( action, relation, additional_context )
return false unless actions.include? action
return false unless model_class_match?( relation )
true
end
# Apply the refinement to the relation.
#
# @param [ActiveRecord::Relation] relation to refine
# @return [ActiveRecord::Relation]
def apply( relation, additional_context )
( block && block.call( relation, additional_context ) ) || relation
end
private
attr_reader :actions
attr_reader :model_class
attr_reader :block
def model_class_match?( candidate )
model_class <= candidate.klass
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems