Sha256: d54f3dfc442565c242c2edb4b15a1759e9b24faf5514ab9e68d0ffaa9397d0ea
Contents?: true
Size: 1.62 KB
Versions: 16
Compression:
Stored size: 1.62 KB
Contents
# Mixin for the {RailsOps::Operation} class that provides *policies*. Policies
# are simple blocks of code that run at specific places in your operation and
# can be used to check conditions such as params or permissions. Policies are
# inherited to subclasses of operations.
module RailsOps::Mixins::Policies
extend ActiveSupport::Concern
POLICY_CHAIN_KEYS = %i[
on_init
before_perform
after_perform
before_nested_model_ops
before_model_save
].freeze
included do
class_attribute :_policy_chains
self._policy_chains = POLICY_CHAIN_KEYS.map { |key| [key, [].freeze] }.to_h
end
module ClassMethods
# Register a new policy block that will be executed in the given `chain`.
# The policy block will be executed in the operation's instance context.
def policy(chain = :before_perform, prepend_action: false, &block)
unless POLICY_CHAIN_KEYS.include?(chain)
fail "Unknown policy chain #{chain.inspect}, available are #{POLICY_CHAIN_KEYS.inspect}."
end
self._policy_chains = _policy_chains.dup
if prepend_action
_policy_chains[chain] = [block] + _policy_chains[chain]
else
_policy_chains[chain] += [block]
end
end
# Returns all registered validation blocks for this operation class.
def policies_for(chain)
unless POLICY_CHAIN_KEYS.include?(chain)
fail "Unknown policy chain #{chain.inspect}, available are #{POLICY_CHAIN_KEYS.inspect}."
end
return _policy_chains[chain]
end
end
def run_policies(chain)
self.class.policies_for(chain).each do |block|
instance_eval(&block)
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems