| #!/bin/bash | |
| # | |
| # Provides a function that allows you to choose a JDK. Just set the environment | |
| # variable JDKS_ROOT to the directory containing multiple versions of the JDK | |
| # and the function will prompt you to select one. JAVA_HOME and PATH will be cleaned | |
| # up and set appropriately. | |
| _macosx() | |
| { | |
| if [ $(uname -s) = Darwin ]; then |
It's pretty easy to do polymorphic associations in Rails: A Picture can belong to either a BlogPost or an Article. But what if you need the relationship the other way around? A Picture, a Text and a Video can belong to an Article, and that article can find all media by calling @article.media
This example shows how to create an ArticleElement join model that handles the polymorphic relationship. To add fields that are common to all polymorphic models, add fields to the join model.
| Copyright (C) 2011 by Colin MacKenzie IV | |
| Permission is hereby granted, free of charge, to any person obtaining a copy | |
| of this software and associated documentation files (the "Software"), to deal | |
| in the Software without restriction, including without limitation the rights | |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| copies of the Software, and to permit persons to whom the Software is | |
| furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in |
| # Flags passed to JRuby are to enable fastest options for that JVM version | |
| # JAVA 6 | |
| system ~/projects/redblack $ pickjdk 1 | |
| New JDK: 1.6.0.jdk | |
| system ~/projects/redblack $ jruby -X+C bm1.rb 10 | |
| 2.577 | |
| 1.758 |
| " Whenever you execute an `:edit somefile` command with the cursor in the | |
| " NERDTree, the file gets edited in the NERDTree buffer, which is usually not | |
| " something you want. This autocommand attempts to edit the given file in the | |
| " closest non-NERDTree buffer instead. | |
| " | |
| " It's fairly hacky, but seems to work. I'll probably use it myself, so I'll | |
| " try to remember to update it if I find any problems. | |
| augroup AvoidEditingNERDTree | |
| autocmd! |
| " Place in ftplugin/qf.vim | |
| xnoremap <buffer> d :DeleteLines<cr> | |
| nnoremap <buffer> dd :DeleteLines<cr> | |
| nnoremap <buffer> u :UndoDelete<cr> | |
| if !exists(':DeleteLines') | |
| let b:deletion_stack = [] | |
| " Delete by a pattern (with undo placing them all on top): |
| // NOTE: I added the .js extension to this gist so it would have syntax highlighting. This file should have NO file extension | |
| { | |
| // Settings | |
| "passfail" : false, // Stop on first error. | |
| "maxerr" : 100, // Maximum error before stopping. | |
| // Predefined globals whom JSHint will ignore. | |
| "browser" : true, // Standard browser globals e.g. `window`, `document`. |
| " This script makes it easy to generate the preview of a file using some | |
| " external program. This could probably be used for any kind of file that | |
| " requires some preprocessing before usage, like coffeescript or markdown. | |
| " | |
| " The preview's parameters are defined using the function SetupPreview. Its | |
| " first parameter is the extension of the processed filetype, the second one | |
| " is the shell command to execute, with %s being replaced by the current | |
| " file's filename. | |
| " | |
| " Examples: |
| require 'bundler' | |
| paths = Bundler.load.specs.map(&:full_gem_path) | |
| system("ack 'Memoizable' #{paths.join(' ')}") |
