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| class ORM | |
| def save | |
| table_name = self.class | |
| instance_variable_names = self.instance_variables.map do |i| | |
| i.slice(1, i.length) | |
| end | |
| instance_variable_values = self.instance_variables.map do |i| | |
| self.instance_variable_get("#{i}") | |
| end | |
| if self.id == nil | |
| sql_columns = instance_variable_names.join(', ') | |
| sql_values_arr = [] | |
| self.instance_variables.each do |i| | |
| sql_values_arr << '"' << self.instance_variable_get("#{i}") << '"' | |
| end | |
| sql_values = sql_values_arr.join(", ") | |
| sql_command = "INSERT INTO #{table_name} | |
| (#{sql_columns}) | |
| VALUES | |
| (#{sql_values})" | |
| else | |
| components = [] | |
| instance_variable_names.each do |ivn| | |
| value = self.instance_variable_get("@#{ivn}") | |
| component = "#{ivn}='#{value}'" | |
| components << component | |
| end | |
| components_string = components.join(', ') | |
| query = "UPDATE #{table_name} SET #{components_string}" | |
| end | |
| end | |
| end | |
| class User < ORM | |
| attr_accessor :id, :name, :email, :phone | |
| def initialize(name, email, phone, gender, id=nil) | |
| @id = id | |
| @name = name | |
| @email = email | |
| @phone = phone | |
| @gender = gender | |
| end | |
| end | |
| class Dog < ORM | |
| attr_accessor :num_legs, :personality_type, :bark_pitch | |
| end | |
| dog = Dog.new | |
| dog.num_legs = 3 | |
| dog.personality_type = 'evil' | |
| dog.bark_pitch = 'high pitched' | |
| puts dog.save | |
| murat = User.new("murat", "[email protected]", "1234234", "doesnt matter in this day and age") | |
| puts murat.save | |
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