# File lib/active_hash/base.rb, line 80 def primary_key "id" end
class ActiveHash::Base
Public Class Methods
add_default_value(field_name, default_value)
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# File lib/active_hash/base.rb, line 277 def add_default_value field_name, default_value self.default_attributes ||= {} self.default_attributes[field_name] = default_value end
all(options = {})
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# File lib/active_hash/base.rb, line 187 def all(options = {}) ActiveHash::Relation.new(self, @records || [], options[:conditions] || {}) end
base_class()
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Needed for ActiveRecord polymorphic associations
# File lib/active_hash/base.rb, line 363 def base_class ActiveHash::Base end
cache_key()
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# File lib/active_hash/base.rb, line 72 def cache_key if Object.const_defined?(:ActiveModel) model_name.cache_key else ActiveSupport::Inflector.tableize(self.name).downcase end end
compute_type(type_name)
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# File lib/active_hash/base.rb, line 94 def compute_type(type_name) self end
create(attributes = {})
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# File lib/active_hash/base.rb, line 172 def create(attributes = {}) record = new(attributes) record.save mark_dirty record end
Also aliased as: add
create!(attributes = {})
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# File lib/active_hash/base.rb, line 181 def create!(attributes = {}) record = new(attributes) record.save! record end
data()
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# File lib/active_hash/base.rb, line 106 def data _data end
data=(array_of_hashes)
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# File lib/active_hash/base.rb, line 110 def data=(array_of_hashes) mark_dirty @records = nil reset_record_index self._data = array_of_hashes if array_of_hashes auto_assign_fields(array_of_hashes) array_of_hashes.each do |hash| insert new(hash) end end end
delete_all()
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# File lib/active_hash/base.rb, line 203 def delete_all mark_dirty reset_record_index @records = [] end
empty?()
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# File lib/active_hash/base.rb, line 102 def empty? false end
exists?(record)
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# File lib/active_hash/base.rb, line 123 def exists?(record) if record.id.present? record_index[record.id.to_s].present? end end
field(field_name, options = {})
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# File lib/active_hash/base.rb, line 216 def field(field_name, options = {}) validate_field(field_name) field_names << field_name add_default_value(field_name, options[:default]) if options[:default] define_getter_method(field_name, options[:default]) define_setter_method(field_name) define_interrogator_method(field_name) define_custom_find_method(field_name) define_custom_find_all_method(field_name) end
field_names()
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# File lib/active_hash/base.rb, line 84 def field_names @field_names ||= [] end
fields(*args)
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# File lib/active_hash/base.rb, line 209 def fields(*args) options = args.extract_options! args.each do |field| field(field, options) end end
insert(record)
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# File lib/active_hash/base.rb, line 129 def insert(record) @records ||= [] record[:id] ||= next_id validate_unique_id(record) if dirty mark_dirty add_to_record_index({ record.id.to_s => @records.length }) @records << record end
method_missing(method_name, *args)
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Calls superclass method
# File lib/active_hash/base.rb, line 246 def method_missing(method_name, *args) return super unless respond_to? method_name config = configuration_for_custom_finder(method_name) attribute_pairs = config[:fields].zip(args) matches = all.select { |base| attribute_pairs.all? { |field, value| base.send(field).to_s == value.to_s } } if config[:all?] matches else result = matches.first if config[:bang?] result || raise(RecordNotFound, "Couldn\'t find #{name} with #{attribute_pairs.collect { |pair| "#{pair[0]} = #{pair[1]}" }.join(', ')}") else result end end end
new(attributes = {}) { |self| ... }
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# File lib/active_hash/base.rb, line 404 def initialize(attributes = {}) attributes.symbolize_keys! @attributes = attributes attributes.dup.each do |key, value| send "#{key}=", value end yield self if block_given? end
next_id()
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# File lib/active_hash/base.rb, line 139 def next_id max_record = all.max { |a, b| a.id <=> b.id } if max_record.nil? 1 elsif max_record.id.is_a?(Numeric) max_record.id.succ end end
pluralize_table_names()
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# File lib/active_hash/base.rb, line 98 def pluralize_table_names true end
polymorphic_name()
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Needed for ActiveRecord polymorphic associations(rails/rails#32148)
# File lib/active_hash/base.rb, line 368 def polymorphic_name base_class.name end
primary_key()
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respond_to?(method_name, include_private=false)
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Calls superclass method
# File lib/active_hash/base.rb, line 236 def respond_to?(method_name, include_private=false) super || begin config = configuration_for_custom_finder(method_name) config && config[:fields].all? do |field| field_names.include?(field.to_sym) || field.to_sym == :id end end end
scope(name, body)
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# File lib/active_hash/base.rb, line 392 def scope(name, body) raise ArgumentError, 'body needs to be callable' unless body.respond_to?(:call) the_meta_class.instance_eval do define_method(name) do |*args| instance_exec(*args, &body) end end end
the_meta_class()
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# File lib/active_hash/base.rb, line 88 def the_meta_class class << self self end end
transaction() { || ... }
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# File lib/active_hash/base.rb, line 193 def transaction yield rescue LocalJumpError => err raise err rescue StandardError => e unless Object.const_defined?(:ActiveRecord) && e.is_a?(ActiveRecord::Rollback) raise e end end
Private Class Methods
add_to_record_index(entry)
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# File lib/active_hash/base.rb, line 160 def add_to_record_index(entry) record_index.merge!(entry) end
auto_assign_fields(array_of_hashes)
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# File lib/active_hash/base.rb, line 346 def auto_assign_fields(array_of_hashes) (array_of_hashes || []).inject([]) do |array, row| row.symbolize_keys! row.keys.each do |key| unless key.to_s == "id" array << key end end array end.uniq.each do |key| field key end end
configuration_for_custom_finder(finder_name)
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# File lib/active_hash/base.rb, line 265 def configuration_for_custom_finder(finder_name) if finder_name.to_s.match(/^find_(all_)?by_(.*?)(!)?$/) && !($1 && $3) { :all? => !!$1, :bang? => !!$3, :fields => $2.split('_and_') } end end
define_custom_find_all_method(field_name)
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# File lib/active_hash/base.rb, line 329 def define_custom_find_all_method(field_name) method_name = :"find_all_by_#{field_name}" unless singleton_methods.include?(method_name) the_meta_class.instance_eval do unless singleton_methods.include?(method_name) define_method(method_name) do |*args| args.extract_options! identifier = args[0] all.select { |record| record.send(field_name) == identifier } end end end end end
define_custom_find_method(field_name)
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# File lib/active_hash/base.rb, line 314 def define_custom_find_method(field_name) method_name = :"find_by_#{field_name}" unless singleton_methods.include?(method_name) the_meta_class.instance_eval do define_method(method_name) do |*args| args.extract_options! identifier = args[0] all.detect { |record| record.send(field_name) == identifier } end end end end
define_getter_method(field, default_value)
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# File lib/active_hash/base.rb, line 282 def define_getter_method(field, default_value) unless instance_methods.include?(field.to_sym) define_method(field) do attributes[field].nil? ? default_value : attributes[field] end end end
define_interrogator_method(field)
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# File lib/active_hash/base.rb, line 303 def define_interrogator_method(field) method_name = :"#{field}?" unless instance_methods.include?(method_name) define_method(method_name) do send(field).present? end end end
define_setter_method(field)
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# File lib/active_hash/base.rb, line 292 def define_setter_method(field) method_name = :"#{field}=" unless instance_methods.include?(method_name) define_method(method_name) do |new_val| @attributes[field] = new_val end end end
mark_clean()
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# File lib/active_hash/base.rb, line 386 def mark_clean self.dirty = false end
mark_dirty()
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# File lib/active_hash/base.rb, line 380 def mark_dirty self.dirty = true end
record_index()
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# File lib/active_hash/base.rb, line 148 def record_index @record_index ||= {} end
reload()
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# File lib/active_hash/base.rb, line 372 def reload reset_record_index self.data = _data mark_clean end
reset_record_index()
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# File lib/active_hash/base.rb, line 154 def reset_record_index record_index.clear end
validate_field(field_name)
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# File lib/active_hash/base.rb, line 228 def validate_field(field_name) if [:attributes].include?(field_name.to_sym) raise ReservedFieldError.new("#{field_name} is a reserved field in ActiveHash. Please use another name.") end end
validate_unique_id(record)
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# File lib/active_hash/base.rb, line 166 def validate_unique_id(record) raise IdError.new("Duplicate ID found for record #{record.attributes.inspect}") if record_index.has_key?(record.id.to_s) end
Public Instance Methods
[](key)
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# File lib/active_hash/base.rb, line 421 def [](key) attributes[key] end
[]=(key, val)
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# File lib/active_hash/base.rb, line 430 def []=(key, val) @attributes[key] = val end
_read_attribute(key)
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# File lib/active_hash/base.rb, line 425 def _read_attribute(key) attributes[key] end
Also aliased as: read_attribute
attributes()
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# File lib/active_hash/base.rb, line 413 def attributes if self.class.default_attributes (self.class.default_attributes.merge @attributes).freeze else @attributes end end
cache_key()
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# File lib/active_hash/base.rb, line 470 def cache_key case when new_record? "#{self.class.cache_key}/new" when timestamp = self[:updated_at] "#{self.class.cache_key}/#{id}-#{timestamp.to_s(:number)}" else "#{self.class.cache_key}/#{id}" end end
destroyed?()
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# File lib/active_hash/base.rb, line 448 def destroyed? false end
eql?(other)
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# File lib/active_hash/base.rb, line 460 def eql?(other) other.instance_of?(self.class) and not id.nil? and (id == other.id) end
Also aliased as: ==
errors()
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# File lib/active_hash/base.rb, line 481 def errors obj = Object.new def obj.[](key) [] end def obj.full_messages() [] end obj end
hash()
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# File lib/active_hash/base.rb, line 466 def hash id.hash end
id()
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# File lib/active_hash/base.rb, line 434 def id attributes[:id] ? attributes[:id] : nil end
Also aliased as: quoted_id
id=(id)
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# File lib/active_hash/base.rb, line 438 def id=(id) @attributes[:id] = id end
marked_for_destruction?()
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# File lib/active_hash/base.rb, line 508 def marked_for_destruction? false end
new_record?()
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# File lib/active_hash/base.rb, line 444 def new_record? !self.class.all.include?(self) end
persisted?()
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# File lib/active_hash/base.rb, line 452 def persisted? self.class.all.map(&:id).include?(id) end
readonly?()
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# File lib/active_hash/base.rb, line 456 def readonly? true end
save(*args)
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# File lib/active_hash/base.rb, line 495 def save(*args) unless self.class.exists?(self) self.class.insert(self) end true end
Also aliased as: save!
to_param()
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# File lib/active_hash/base.rb, line 65 def to_param id.present? ? id.to_s : nil end
valid?()
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# File lib/active_hash/base.rb, line 504 def valid? true end