Създаване на хеш чрез map

Програмиране с Ruby

Курс във Факултета по Математика и Информатика към СУ

Решение на Пета задача - DataModel от Милена Монова

Обратно към всички решения

Към профила на Милена Монова

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  • 0 неуспешни тест(а)

Код

module DataModelExceptions
class DeleteUnsavedRecordError < StandartError
end
end
class DataStore
def storage
@store
end
def initialize
@store = {}
end
def create(model)
end
def find(model)
end
def update(model_id)
end
def delete(model)
end
end
class ArrayStore < DataStore
attr_reader :store
def initialize
@store = []
end
def create(model)
@store.push(model)
end
def find(model)
@store.find(model)
end
def update(model_id, model)
@store.find { |id| id == model_id }.first = model
end
def delete(model)
@store.delete(model)
end
end
class HashStore < DataStore
attr_reader :store
@id = 0
def initialize(store)
@store = store
end
def create(model)
id += 1
@store[id] = model
end
def find(model)
@store.select { |_, v| v == model }
end
def update(model_id, model)
@store[model_id] = model
end
def delete(model)
@store.each { |item| item == model }.delete(model)
end
end
class DataModelExceptions
include DataModelExceptions
attr_reader :id
@id = 1
def initialize(hash = nil)
return @attributes = {} unless hash
@attributes = {}
hash.each do |key, value|
@attributes[key] = value
end
end
def self.data_store(store)
@data_store = store
end
def save
if @id
puts @data_store.class
@data_store.create(@attributes)
else
@data_store.update(@id, @attributes)
end
self
end
def delete
raise DeleteUnsavedRecordError unless @id
@data_store.delete(self.to_h)
end
def self.==(other)
self.instance_of? == other.instance_of? &&
@id == other.id ||
self.equal?(other)
end
def self.attributes(*args)
if args.empty?
@attributes.to_a.map { |atr| atr.to_sym }
else
@attributes = args.to_a
end
end
end

Лог от изпълнението

/tmp/d20161202-15620-12mje3c/solution.rb:3:in `<module:DataModelExceptions>': uninitialized constant DataModelExceptions::StandartError (NameError)
	from /tmp/d20161202-15620-12mje3c/solution.rb:2:in `<top (required)>'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1036:in `require'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1036:in `block in setup_load_path_and_require'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1036:in `each'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1036:in `setup_load_path_and_require'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/configuration_options.rb:25:in `configure'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/command_line.rb:17:in `run'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/runner.rb:103:in `run'
	from /data/rails/evans-2016/shared/bundle/ruby/2.3.0/gems/rspec-core-2.99.2/lib/rspec/core/runner.rb:17:in `block in autorun'

История (1 версия и 0 коментара)

Милена обнови решението на 01.12.2016 23:14 (преди около 8 години)

+
+module DataModelExceptions
+ class DeleteUnsavedRecordError < StandartError
+ end
+end
+
+class DataStore
+ def storage
+ @store
+ end
+
+ def initialize
+ @store = {}
+ end
+
+ def create(model)
+ end
+
+ def find(model)
+ end
+
+ def update(model_id)
+ end
+
+ def delete(model)
+ end
+end
+
+class ArrayStore < DataStore
+ attr_reader :store
+
+ def initialize
+ @store = []
+ end
+
+ def create(model)
+ @store.push(model)
+ end
+
+ def find(model)
+ @store.find(model)
+ end
+
+ def update(model_id, model)
+ @store.find { |id| id == model_id }.first = model
+ end
+
+ def delete(model)
+ @store.delete(model)
+ end
+end
+
+class HashStore < DataStore
+ attr_reader :store
+ @id = 0
+
+ def initialize(store)
+ @store = store
+ end
+
+ def create(model)
+ id += 1
+ @store[id] = model
+ end
+
+ def find(model)
+ @store.select { |_, v| v == model }
+ end
+
+ def update(model_id, model)
+ @store[model_id] = model
+ end
+
+ def delete(model)
+ @store.each { |item| item == model }.delete(model)
+ end
+end
+
+class DataModelExceptions
+ include DataModelExceptions
+
+ attr_reader :id
+ @id = 1
+
+ def initialize(hash = nil)
+ return @attributes = {} unless hash
+ @attributes = {}
+ hash.each do |key, value|
+ @attributes[key] = value
+ end
+ end
+
+ def self.data_store(store)
+ @data_store = store
+ end
+
+ def save
+ if @id
+ puts @data_store.class
+ @data_store.create(@attributes)
+ else
+ @data_store.update(@id, @attributes)
+ end
+ self
+ end
+
+ def delete
+ raise DeleteUnsavedRecordError unless @id
+ @data_store.delete(self.to_h)
+ end
+
+ def self.==(other)
+ self.instance_of? == other.instance_of? &&
+ @id == other.id ||
+ self.equal?(other)
+ end
+
+ def self.attributes(*args)
+ if args.empty?
+ @attributes.to_a.map { |atr| atr.to_sym }
+ else
+ @attributes = args.to_a
+ end
+ end
+end