Create sample data for MongoDB

insert_mongodata.rb

# -*- encoding: utf-8 -*-
require 'mongo'
require 'time'

DATA_NUM = 3000000
DB_NAME = 'blog'
COLL_NAME = 'entry'

@client = Mongo::MongoClient.new('localhost', 27017)
@db     = @client[DB_NAME]
@coll   = @db[COLL_NAME]

puts "create #{COLL_NAME}..."

def insert_data
  DATA_NUM.times do |i|
    @coll.insert({'entry_id' => i+1,
                  'author' => @author_array[rand(500)],
                  'title' => rand_str(30),
                  'body' => rand_str(1000),
                  'tag' => rand_array(10),
                  'date' => rand_time("2003-01-01","2013-01-01")
                })
    if i%1000 == 0
      puts i
    end
  end
end

def rand_str(digits)
  #charset = ('a'..'z').to_a + ('A'..'Z').to_a + ('0'..'9').to_a
  charset = ('A'..'Z').to_a 
  Array.new(digits){charset[rand(charset.size)]}.join
end

def rand_array(digits)
  charset = ('A'..'Z').to_a
  Array.new(digits){rand_str(5)}
end

def rand_num(digits)
  numset = ('0'..'9').to_a
  Array.new(digits){numset[rand(numset.size)]}.join
end

def rand_time(d_from, d_to)
    from = Time.parse(d_from)
    to = Time.parse(d_to)
    days = to - from + 1
    return from + rand(days)
end

@author_array = ["田中 太郎","中里 雅彦","浅倉 あや子","宮下 メイサ","石沢 竜次","倉本 玲那","竹内 マサカズ","北山 真一","佐久間 幸子","猪股 麗奈","内藤 光博","池本 徹","深田 美佐","石倉 春樹","樋口 克実","黒田 千夏","金城 健","和泉 広之","山岸 真奈美","玉置 恵麻","中村 有海","石山 愛菜","石垣 真吾","福士 晃司","板橋 雅彦","山田 染五郎","原田 みき","榊原 一","北川 茜","加藤 マサカズ","瀬戸内 茜","水嶋 さんま","高尾 れいな","柳家 サダヲ","小出 優","井川 結衣","安 丈史","飯田 まなみ","山野 和久","富樫 染五郎","深沢 理紗","宮坂 めぐみ","丹羽 俊二","新村 雅彦","木田 季衣","古山 信吾","梅田 彩華","野島 康文","北沢 研二","小関 光良","山崎 法嗣","根本 祐一","志賀 良介","熊田 俊二","神野 良介","楠 ノブヒコ","宮本 ひとみ","藤岡 良介","吉原 璃奈子","湊 友以乃","上杉 景子","金谷 ケンイチ","服部 宏","木内 しぼり","三井 隆太","北野 充則","沼田 浩介","金児 璃子","川中 惇","城戸 フミヤ","梅田 兼","田島 麻緒","水川 知世","梅田 光","庄司 あさみ","久米 恵梨香","窪田 惇","小野 明宏","原 一","吉原 なぎさ","上田 碧海","小田島 遥","松澤 瞬","金城 俊二","乾 仁","広末 茜","石田 美菜","若山 高史","羽田 広之","春日 竜次","三木 法嗣","吉沢 さとみ","安部 知史","西岡 雅之","西川 恵子","芳賀 豊","勝地 雅彦","今井 菜摘","甲斐 大","野沢 高史","上杉 理紗","南部 花緑","境 寛","高崎 竜也","末吉 薫","前原 育二","浜田 きみまろ","岡田 慶太","宮島 美嘉","豊原 浩介","田口 莉緒","川中 遥","宮里 真悠子","岩井 隆","島崎 良介","田川 愛菜","桜井 扶樹","勝田 雅之","鶴岡 耕司","毛利 照生","笠原 菊生","北島 恵梨香","大和田 晴臣","野田 莉沙","尾形 将也","おかやま 徹","河原 優","植田 七世","山上 了","小栗 翔太","吉川 メイサ","西 だん吉","西村 隆","小川 宏","下田 孝太郎","栗山 マサカズ","本橋 雅彦","多岐川 勇介","角田 祐基","秋葉 右京","高見 ヒカル","佐々木 信吾","市川 光","波多野 直人","仲田 サダヲ","上条 昌代","徳田 薫","横尾 あや子","児島 真悠子","小玉 研二","長井 咲","木戸 めぐみ","仲村 めぐみ","平山 恵美","内山 亜希","本間 まみ","河原 はるみ","黒木 公顕","奥貫 さんま","浅田 玲那","藤本 怜奈","青野 雅彦","山口 亮介","大谷 薫","町田 なつみ","長尾 めぐみ","太田 裕司","中里 光良","大竹 路子","江川 美月","原 サンタマリア","福田 完爾","川西 広司","松村 由樹","石本 慢太郎","役所 信吾","寺田 浩介","村中 詩織","戸田 小雁","五大 那奈","川畑 敦","及川 しぼり","服部 建","瀬尾 夏空","小倉 綾","萩原 ノブヒコ","大後 さゆり","脇田 コウ","三島 路子","高見 杏","西村 未來","浅倉 美和子","大西 六郎","金沢 法嗣","三原 聡","笠原 サンタマリア","深田 美里","安井 季衣","土居 浩正","青山 光","瀬戸内 寛","大庭 杏","有馬 千佳子","河西 恭子","水口 璃子","滝 秀樹","高倉 那奈","中本 栄一","高柳 そら","伊藤 豊","須賀 勝久","滝川 草太","小関 遥","保坂 研二","湯浅 まひる","斉藤 奈央","石橋 寛","藤 あさみ","西本 染五郎","葛山 扶樹","草野 功補","藤島 コウ","江崎 染五郎","児島 恭子","小杉 茜","富岡 璃子","吹越 秀樹","水川 真一","浅倉 徹平","明石 慢太郎","六角 亮","大村 文世","三村 一樹","北 れいな","百瀬 文世","猪股 はじめ","西谷 真一","渡辺 美希","浅井 昌代","森永 賢二","寺脇 栄一","宮脇 一徳","長沢 はじめ","小野 ケンイチ","北島 惇","小松 あき","永島 美優","小島 聡","山野 淳","福田 貴美子","畠中 沙耶","西野 真希","菅野 貴美子","岩井 璃奈子","佐古 慶太","大友 了","堀口 敏也","中野 一恵","曽我 怜奈","佐久間 莉緒","山岡 慢太郎","澤田 功補","中川 友也","車 慎之介","三宅 なぎさ","小山 一代","荻原 広之","安倍 惇","井手 真奈美","中園 勝久","小柳 美佐","高原 慢太郎","末吉 あおい","小野寺 一哉","佐野 俊二","本間 莉央","大和田 孝太郎","笠原 恵麻","富山 倫子","小久保 博之","新田 敏和","井村 美和子","田淵 七世","菅野 浩太郎","橘 優","土居 瞬","沖田 奈月","川畑 小百合","古田 サンタマリア","田尻 勝久","吉井 康文","玉木 優","塚原 光臣","船橋 涼","境 聖陽","亀山 奈央","森山 ヒロ","高崎 花緑","多部 浩正","おかやま 丈雄","岡山 雅功","和泉 ひとみ","神山 徹平","沖 直人","西井 くるみ","山口 正敏","鈴木 雅彦","高谷 佳乃","進藤 鉄二","内田 輝信","伊丹 敏和","森下 美月","風間 竜也","花田 咲","楠 大樹","大竹 妃里","川島 璃子","江原 遥","沢田 綾","宮里 はじめ","重田 芳正","影山 法嗣","内田 孝太郎","半田 惇","永井 雅之","三谷 ひかり","阪口 玲那","小谷 美幸","池谷 右京","長友 璃奈子","須田 理紗","小野田 樹里","遠山 美帆","長井 祐一","北条 菊生","佐古 メイサ","玉井 景子","杉下 宏","福田 えみ","牧瀬 正義","五十嵐 優","窪田 長利","清水 惇","パンツェッタ 小百合","相川 努","三枝 由美子","笹川 さとみ","柏木 路子","飛田 友也","浜 奈々","高谷 草太","会田 丈雄","豊島 竜次","田辺 はじめ","若杉 ひかり","菅谷 満","橋本 敏和","津川 昴","阪本 仁晶","志村 ひとり","永井 英嗣","尾形 徹","品川 光臣","宮坂 竜也","近藤 ヒカル","鈴木 研二","国分 勤","阿井 由美子","中尾 孝太郎","江川 宏","平 努","北山 れいな","川合 あき","寺本 恵梨香","依田 裕次郎","竹田 璃子","中田 里穂","柳沢 真悠子","梅本 明宏","市川 了","真矢 光臣","岡田 文世","小木 瞬","小池 芳正","増井 隆博","末吉 由宇","少路 秀樹","内海 雅之","岡村 未華子","伊集院 一徳","奥 はるみ","長谷川 有起哉","河原 薫","辻 幸子","広田 和香","戎 まひる","黄川田 正敏","池田 芳正","久米 芳正","神戸 亮","塚本 マサカズ","島津 恵梨香","川島 妃里","石倉 明宏","長田 碧海","浅沼 彩華","中井 美佳","小野 太朗","仲田 ケンイチ","竹本 さゆり","土谷 杏","奥野 未華子","関根 俊二","堀越 雅彦","神田 恵梨香","富岡 遥","田原 りえ","柴咲 まなみ","石井 宏行","横川 はるか","関 勇介","熊谷 麻由子","岸本 璃奈子","若林 遥","長瀬 未來","武 俊介","大竹 恵梨香","山内 隆太","清野 美帆","対馬 幸子","寺田 直人","島崎 夏空","早川 将也","小林 仁","水野 しぼり","渡辺 長利","奥山 千夏","吉川 たかお","土居 哲平","西村 サンタマリア","吉沢 誠治","落合 瞬","富山 丈史","氏家 慶二","パンツェッタ 恵子","福永 由宇","井出 優一","谷村 浩太郎","手島 徹平","役所 徹","石山 真帆","笠井 和之","古山 未來","明石家 勇","勝田 恵子","寺井 みき","相馬 直人","三輪 明日","長尾 美智子","熊沢 夏希","成田 智花","細山 由宇","浅沼 圭","塚原 玲那","大下 はるみ","長尾 一徳","奥村 広之","小杉 晃司","小沼 莉緒","仲田 育子","相原 由美子","滝沢 育子","三枝 由樹","山中 豊","瀬戸 紗季","宮川 沙耶","菅井 克実","関根 恵子","須藤 秀樹","内村 満","松岡 直人","田尻 一恵","小川 優","山岡 愛梨","吉崎 美佐子","瀬戸 孝太郎","中沢 美佐","豊原 フミヤ","沖田 あや子","高山 翔太","井村 基祐","野沢 里奈","五味 一樹","樋口 里奈","妹尾 禄郎","三上 亮介","木原 長利","木戸 祐一","小日向 勝久","西沢 愛菜","大島 信吾"]

insert_data
puts "There are #{@coll.count} records."