CREATE DATABASE `counter`;\n<\/code><\/pre>\n\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3002<\/p>\n
CREATE TABLE `counts` (\n `id` INT NOT NULL AUTO_INCREMENT ,\n `count` INT NOT NULL,\n PRIMARY KEY ( `id` )\n);\n<\/code><\/pre>\n\u30ec\u30b3\u30fc\u30c9\u3092\u767b\u9332\u3059\u308b\u3002<\/p>\n
INSERT INTO `counts` VALUES(0);\n<\/code><\/pre>\n\u25a0\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210<\/p>\n
C:\\rails\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210\u3059\u308b\u3002
\nC:\\rails\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u79fb\u52d5\u3057\u3066\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3002<\/p>\n
rails counter\n<\/code><\/pre>\nC:\\rails\\counter\\config\\database.yml\u306edatabase\u306e\u9805\u76ee\u3092counter\u306b\u7de8\u96c6\u3059\u308b\u3002<\/p>\n
development:\n adapter: mysql\n database: counter\n host: localhost\n username: root\n password: \n\ntest:\n adapter: mysql\n database: counter\n host: localhost\n username: root\n password:\n\nproduction:\n adapter: mysql\n database: counter\n host: localhost\n username: root\n password:\n<\/code><\/pre>\n\u30e2\u30c7\u30eb\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n
ruby script\/generate model Count\n\nruby script\/generate controller count\n<\/code><\/pre>\n\u25a0\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/p>\n
C:\\rails\\counter\\app\\views\\count\\index.rhtml \u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3002
\nindex.rhtml\u3067\u306f\u3001@count\u306e\u5024\u3092\u8868\u793a\u3059\u308b\u3002<\/p>\n
<?xml version=\"1.0\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD XHTML 1.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/xhtml1\/DTD\/xhtml1-transitional.dtd\">\n<html xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\" xml:lang=\"ja-JP\" lang=\"ja-JP\">\n<head>\n <title>\u30ab\u30a6\u30f3\u30bf<\/title>\n<\/head>\n<body>\n <h1>\u30ab\u30a6\u30f3\u30bf<\/h1>\n <p>\n <%= @count %>\n <\/p>\n<\/body>\n<\/html>\n<\/code><\/pre>\nC:\\rails\\counter\\app\\controllers\\count_controller.rb \u3092\u958b\u304f\u3002
\ncounts\u30c6\u30fc\u30d6\u30eb\u306e\u5148\u982d\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3057\u3001count\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u306b1\u3092\u52a0\u7b97\u3057\u3066\u3001\u4fdd\u5b58\u3059\u308b\u3002
\n@count\u306e\u5024\u306f\u3001index.rhtml\u3067\u8868\u793a\u3059\u308b\u3002<\/p>\n
class CountController < ApplicationController\n def index\n count = Count.find(:first)\n count.count += 1\n count.save\n @count = count.count\n end\nend\n<\/code><\/pre>\nWEBrick \u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3059\u308b\u3002<\/p>\n
ruby script\/server\n<\/code><\/pre>\nhttp:\/\/localhost:3000\/count\/\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3002
\n\u30ea\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3073\u306b\u6570\u5b57\u304c\u5897\u3048\u305f\u3089\u6210\u529f\u3002<\/p>\n
\u203b2011\u5e746\u670825\u65e5\u8ffd\u8a18
\n\u30b3\u30e1\u30f3\u30c8\u6b04\u306b\u3042\u308b\u3088\u3046\u306b\u3001\u6b63\u3057\u304f\u52d5\u4f5c\u3055\u305b\u308b\u305f\u3081\u306b\u306fincrement_counter\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u3002<\/p>\n
\n![](\"https:\/\/i0.wp.com\/ecx.images-amazon.com\/images\/I\/51%2BUj1CI5tL._SL160_.jpg?w=730\")
<\/a><\/div>\n\nRuby on Rails 3 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/a><\/p>\nposted with \u30e8\u30e1\u30ec\u30d0<\/a><\/div>\n<\/div>\n\u5c71\u7530 \u7965\u5bdb \u6280\u8853\u8a55\u8ad6\u793e 2011-05-12 <\/div>\n\nAmazon\u3067\u8abf\u3079\u308b<\/a><\/div>\n\u697d\u5929\u30d6\u30c3\u30af\u30b9\u3067\u8abf\u3079\u308b<\/a><\/div>\nbk1\u3067\u8abf\u3079\u308b![](\"http:\/\/ad.jp.ap.valuecommerce.com\/servlet\/gifbanner?sid=2300256&pid=879367607\")
<\/a><\/div>\n