85 lines
2 KiB
Ruby
85 lines
2 KiB
Ruby
#
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# Wrapper around Hash so that the casted_by attribute is set.
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module CouchRest::Model
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class CastedHash < Hash
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include CouchRest::Model::CastedBy
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include CouchRest::Model::Dirty
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attr_accessor :casted_by_property
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def self.[](hash, property, parent = nil)
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obj = super(hash)
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obj.casted_by_property = property
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obj.casted_by = parent unless parent.nil?
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obj
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end
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# needed for dirty
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def attributes
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self
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end
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def []= key, obj
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couchrest_attribute_will_change!(key) if use_dirty? && obj != self[key]
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super(key, obj)
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end
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def delete(key)
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couchrest_attribute_will_change!(key) if use_dirty? && include?(key)
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super(key)
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end
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def merge!(other_hash)
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if use_dirty? && other_hash && other_hash.kind_of?(Hash)
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other_hash.keys.each do |key|
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if self[key] != other_hash[key] || !include?(key)
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couchrest_attribute_will_change!(key)
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end
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end
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end
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super(other_hash)
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end
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def replace(other_hash)
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if use_dirty? && other_hash && other_hash.kind_of?(Hash)
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# new keys and changed keys
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other_hash.keys.each do |key|
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if self[key] != other_hash[key] || !include?(key)
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couchrest_attribute_will_change!(key)
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end
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end
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# old keys
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old_keys = self.keys.reject { |key| other_hash.include?(key) }
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old_keys.each { |key| couchrest_attribute_will_change!(key) }
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end
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super(other_hash)
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end
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def clear
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self.keys.each { |key| couchrest_attribute_will_change!(key) } if use_dirty?
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super
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end
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def delete_if
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if use_dirty? && block_given?
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self.keys.each do |key|
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couchrest_attribute_will_change!(key) if yield key, self[key]
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end
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end
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super
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end
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# ruby 1.9
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def keep_if
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if use_dirty? && block_given?
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self.keys.each do |key|
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couchrest_attribute_will_change!(key) if !yield key, self[key]
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end
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end
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super
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end
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end
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end
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