A find_or_create_by_* dynamic finder : Search « ActiveRecord « Ruby






A find_or_create_by_* dynamic finder


=begin

drop database Contact;

create database Contact;

use Contact;

CREATE TABLE Employee (
   id  int unsigned not null auto_increment primary key,
   Name VARCHAR(50),
   Phone VARCHAR(15),
   departmentId int
);


CREATE TABLE Department(
   id    int unsigned not null auto_increment primary key,
   Name VARCHAR(50),
   Phone VARCHAR(15)
   
);



=end

require "rubygems"
require "activerecord"

ActiveRecord::Base.establish_connection(
  :adapter => "mysql",
  :host => "localhost",
  :username => "root",
  :database => "Contact")

class Employee < ActiveRecord::Base
   set_table_name "employee"
   belongs_to :department
end

class Department < ActiveRecord::Base
   set_table_name "department"
end

account = Employee.new
account.Name = "AAA"
account.save

account = Employee.find_or_create_by_Name("B")
puts account.destroy

 








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1.Find by column name
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3.id is default for find(1)
4.Find many values
5.Find first or find all
6.Find with conditions
7.Find with AND
8.Find with OR