69 lines
2.3 KiB
Ruby
69 lines
2.3 KiB
Ruby
module CouchRest
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module Model
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module Attributes
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## Support for handling attributes
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#
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# This would be better in the properties file, but due to scoping issues
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# this is not yet possible.
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#
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def prepare_all_attributes(doc = {}, options = {})
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apply_all_property_defaults
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if options[:directly_set_attributes]
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directly_set_read_only_attributes(doc)
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else
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remove_protected_attributes(doc)
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end
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directly_set_attributes(doc) unless doc.nil?
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end
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# Takes a hash as argument, and applies the values by using writer methods
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# for each key. It doesn't save the document at the end. Raises a NoMethodError if the corresponding methods are
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# missing. In case of error, no attributes are changed.
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def update_attributes_without_saving(hash)
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# Remove any protected and update all the rest. Any attributes
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# which do not have a property will simply be ignored.
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attrs = remove_protected_attributes(hash)
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directly_set_attributes(attrs)
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end
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alias :attributes= :update_attributes_without_saving
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private
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def directly_set_attributes(hash)
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hash.each do |attribute_name, attribute_value|
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if self.respond_to?("#{attribute_name}=")
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self.send("#{attribute_name}=", hash.delete(attribute_name))
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end
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end
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end
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def directly_set_read_only_attributes(hash)
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property_list = self.properties.map{|p| p.name}
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hash.each do |attribute_name, attribute_value|
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next if self.respond_to?("#{attribute_name}=")
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if property_list.include?(attribute_name)
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write_attribute(attribute_name, hash.delete(attribute_name))
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end
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end
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end
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def set_attributes(hash)
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attrs = remove_protected_attributes(hash)
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directly_set_attributes(attrs)
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end
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def check_properties_exist(attrs)
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property_list = self.properties.map{|p| p.name}
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attrs.each do |attribute_name, attribute_value|
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raise NoMethodError, "Property #{attribute_name} not created" unless respond_to?("#{attribute_name}=") or property_list.include?(attribute_name)
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end
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end
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end
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end
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end
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