Class: CollectionJSON::Attribute
- Inherits:
-
Object
- Object
- CollectionJSON::Attribute
show all
- Defined in:
- lib/collection-json/attribute.rb
Class Method Summary
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Instance Method Summary
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Class Method Details
.attribute(name, opts = {}) ⇒ Object
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# File 'lib/collection-json/attribute.rb', line 13
def self.attribute(name, opts={})
nested_attributes << name
define_method(name) do |arg=nil|
if arg != nil
if opts[:transform]
instance_variable_set(:"@#{name}", opts[:transform].call(arg))
else
instance_variable_set(:"@#{name}", arg)
end
else
if instance_variable_get(:"@#{name}").nil? && opts[:default]
instance_variable_set(:"@#{name}", opts[:default].dup)
else
instance_variable_get(:"@#{name}")
end
end
end
add_find_method(name, opts[:find_method]) if opts.has_key?(:find_method)
end
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.from_hash(hash) ⇒ Object
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# File 'lib/collection-json/attribute.rb', line 38
def self.from_hash(hash)
self.new.tap do |item|
hash.each { |k,v| item.send(k, v) if item.respond_to?(k) }
end
end
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.nested_attributes ⇒ Object
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# File 'lib/collection-json/attribute.rb', line 9
def self.nested_attributes
@nested_attributes ||= []
end
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.root_node(value = nil) ⇒ Object
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# File 'lib/collection-json/attribute.rb', line 33
def self.root_node(value = nil)
@root_node = value.to_s if value
@root_node
end
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Instance Method Details
#to_hash ⇒ Object
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# File 'lib/collection-json/attribute.rb', line 44
def to_hash
hash = Hash.new.tap do |item|
self.class.nested_attributes.each do |attribute|
value = send(attribute)
item[attribute] = value unless skip_value?(value)
end
end
self.class.root_node ? {self.class.root_node => hash} : hash
end
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#to_json(*args) ⇒ Object
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# File 'lib/collection-json/attribute.rb', line 54
def to_json(*args)
to_hash.to_json(*args)
end
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