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class Releaf::ResourceUtilities
# Lists relations for @resource with dependent: :restrict_with_exception
#
# @return hash of all related objects, who have dependancy :restrict_with_exception
def self.restricted_relations(resource)
restricted_associations(resource).inject({}) do|relations, association|
relations[association.name.to_sym] = {
objects: resource.send(association.name),
controller: association_controller(association)
}
relations
end
end
def self.restricted_associations(resource)
resource.class.reflect_on_all_associations.select do |association|
restricted_association?(resource, association)
end
end
def self.restricted_association?(resource, association)
association.options[:dependent] == :restrict_with_exception && resource.send(association.name).exists?
end
# Attempts to guess associated controllers name
#
# @return controller name
def self.association_controller(association)
guessed_name = association.name.to_s.pluralize
guessed_name if Releaf.application.config.controllers.values.map { |v| v.controller_name }.grep(/(\/#{guessed_name}$|^#{guessed_name}$)/).present?
end
def self.destroyable?(resource)
restricted_associations(resource).empty?
end
end
Version data entries
43 entries across 43 versions & 1 rubygems