andynu

Overview:

rails stats:controllers  # Show basic controller usage stats
rails stats:models       # Show basic model usage stats
rails stats:trends       # show frequency trends for a date column; MODEL=x COLUMN=y
rails stats:unroutable   # Find routes that will raise a routing error when requested
rails stats:users        # Show basic details of users

onlurking

Programming as Theory Building

Peter Naur

Peter Naur's classic 1985 essay "Programming as Theory Building" argues that a program is not its source code. A program is a shared mental construct (he uses the word theory) that lives in the minds of the people who work on it. If you lose the people, you lose the program. The code is merely a written representation of the program, and it's lossy, so you can't reconstruct

idcrook

;; NeoTree can be opened (toggled) at projectile project root
(defun neotree-project-dir ()
    "Open NeoTree using the git root."
    (interactive)
    (let ((project-dir (projectile-project-root))
          (file-name (buffer-file-name)))
      (neotree-toggle)
      (if project-dir
          (if (neo-global--window-exists-p)
              (progn

tanyuan

Smart Caps Lock: Remap to Control AND Escape (Linux, Mac, Windows)

把 Caps Lock 變成智慧的 Control 以及 Escape ：

• 單獨輕按一下就是 Escape 。
• 若按下時同時按著其他鍵，就會是 Control 。

這應該是 Vim 和 Emacs 的最佳解了！(Emacs? Bash 的快捷鍵就是 Emacs 系列的)

• Send Escape if you tap Caps Lock alone.

bluemont

class UrlValidator < ActiveModel::EachValidator

  def validate_each(record, attribute, value)
    valid = begin
      URI.parse(value).kind_of?(URI::HTTP)
    rescue URI::InvalidURIError
      false
    end
    unless valid
      record.errors[attribute] << (options[:message] || "is an invalid URL")