module Dynamoid::Fields::ClassMethods
Public Instance Methods
field(name, type = :string, options = {})
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Specify a field for a document. Its type determines how it is coerced when read in and out of the datastore: default is string, but you can also specify :integer, :float, :set, :array, :datetime, and :serialized.
@param [Symbol] name the name of the field @param [Symbol] type the type of the field (one of :integer, :float, :set, :array, :datetime, or :serialized) @param [Hash] options any additional options for the field
@since 0.2.0
# File lib/dynamoid/fields.rb, line 31 def field(name, type = :string, options = {}) named = name.to_s self.attributes = attributes.merge(name => {:type => type}.merge(options)) define_method(named) { read_attribute(named) } define_method("#{named}?") { !read_attribute(named).nil? } define_method("#{named}=") {|value| write_attribute(named, value) } end
range(name, type = :string)
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# File lib/dynamoid/fields.rb, line 40 def range(name, type = :string) field(name, type) self.range_key = name end
remove_field(field)
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# File lib/dynamoid/fields.rb, line 53 def remove_field(field) field = field.to_sym attributes.delete(field) or raise "No such field" remove_method field remove_method :"#{field}=" remove_method :"#{field}?" end
table(options)
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# File lib/dynamoid/fields.rb, line 45 def table(options) #a default 'id' column is created when Dynamoid::Document is included unless(attributes.has_key? hash_key) remove_field :id field(hash_key) end end