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May
25th

Fri

25 down vote accepted You have broken version of RVM - Ubuntu does something to RVM that produces lots of errors, the only safe way of fixing for now is to: sudo apt-get —purge remove ruby-rvm sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh open new terminal and validate environment is clean from old rvm settings (should be no output): env | grep rvm if there was output, try to open new terminal, if it does not help - restart computer install RVM: curl -L get.rvm.io | bash -s stable —auto do not forget to read rvm requirements before installing rubies

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ubuntu - Installed Ruby 1.9.3 with RVM but command line doesn’t show ruby -v - Stack Overflow

これを見ながらRVMをインストール完了。apt-getで一回試した俺が馬鹿だったよ・・・。

May
24th

Thu

Ubuntuの日本語環境 | Ubuntu Japanese Team

64bit Ubuntu12.04をインストールしたので以下の手順通りに日本語版と同じになるようにセットアップした

If you have a problem connecting, run the commands below and restart Ubuntu, then try again. echo “gnome-session —session=ubuntu-2d” > ~/.xsession

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Connect to Ubuntu 12.04 (Precise Pangolin) via Windows Remote Desktop | Liberian Geek

この通りのコマンドを入れて再起動したら繋がるようになった。感激。これで快適なUbuntu Lifeが

Define Indexes in a Class Method, Invoke in Initializer A small tweak to putting indexes into an initializer was to place the knowledge of the indexes back into the model classes themselves. Then, all you needed to do was invoke the model class method to create it’s own indexes. The Initializer Code ? 1 2 3 4 5 # Rails.root/config/initializers/mongo_config.rb Event.create_indexes Encounter.create_indexes Setting.create_indexes The Model(s) Code ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 class Setting include MongoMapper::Document # Attributes :::::::::::::::::::::::::::::::::::::::::::::::::::::: # What the user sees as a label key :label, String # How we reference it in code key :identifier, String, :required => true … # Indexes ::::::::::::::::::::::::::::::::::::::::::::::::::::::::: def self.create_indexes self.ensure_index(:identifier, :unique => true) self.ensure_index(:label, :unique => true) end … end

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Configuring MongoMapper Indexes in Rails App » Technical Debt

インデックスはこんなコードで、実装しよう。

mongodb - MongoMapper near with maxDistance - Mongo::OperationFailure: geo values have to be numbers: - Stack Overflow

この説明の通りだった。whereに$nearを書けば実行できる。

ensure_indexが実行されていないと当然のごとく検索は失敗するので注意

alexreisner/geocoder · GitHub

https://github.com/alexreisner/geocoder

これは、MongoDBのときにMongoDBの機能を使って
座標の範囲検索を実装しているわけではなさそう。

def full_near_scope_options(latitude, longitude, radius, options)の辺りより。

May
23rd

Wed