rurabe

module IsOrderable
 extend ActiveRecord::Concern
 
 def change_position_to(n)
   safe_n = self.class.sanitize(n)
   current_position = self.class.sanitize(position)
   connection.execute(<<-SQL
    BEGIN;
    UPDATE #{self.class.table_name} SET position = position + 1 WHERE parent_id = #{parent_id} AND position < #{current_position} AND position >= #{safe_n};
    UPDATE #{self.class.table_name} SET position = position - 1 WHERE parent_id = #{parent_id} AND position > #{current_position} AND position <= #{safe_n};

rurabe

(function(){
  var copyToClipboard = str => {
    var el = document.createElement('textarea');  // Create a <textarea> element
    el.value = str;                                 // Set its value to the string that you want copied
    el.setAttribute('readonly', '');                // Make it readonly to be tamper-proof
    el.style.position = 'absolute';                 
    el.style.left = '-9999px';                      // Move outside the screen to make it invisible
    document.body.appendChild(el);                  // Append the <textarea> element to the HTML document
    var selected =            
      document.getSelection().rangeCount > 0        // Check if there is any content selected previously