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Versions: 9
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Contents
module AttrJson
# Intentionally non-mutable, to avoid problems with subclass inheritance
# and rails class_attribute. Instead, you set to new Config object
# changed with {#merge}.
class Config
RECORD_ALLOWED_KEYS = %i{
default_container_attribute
default_accepts_nested_attributes
}
MODEL_ALLOWED_KEYS = %i{
unknown_key
bad_cast
time_zone_aware_attributes
}
DEFAULTS = {
default_container_attribute: "json_attributes",
unknown_key: :raise
}
(MODEL_ALLOWED_KEYS + RECORD_ALLOWED_KEYS).each do |key|
define_method(key) do
attributes[key]
end
end
attr_reader :mode
def initialize(options = {})
@mode = options.delete(:mode)
unless mode == :record || mode == :model
raise ArgumentError, "required :mode argument must be :record or :model"
end
valid_keys = mode == :record ? RECORD_ALLOWED_KEYS : MODEL_ALLOWED_KEYS
options.assert_valid_keys(valid_keys)
options.reverse_merge!(DEFAULTS.slice(*valid_keys))
@attributes = options
end
# Returns a new Config object, with changes merged in.
def merge(changes = {})
self.class.new(attributes.merge(changes).merge(mode: mode))
end
protected
def attributes
@attributes
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems