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引用app/controllers/application_controller.rb
# 表單驗證錯誤
ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
message = case html_tag
when /<(label)/
%(<div class="error">#{html_tag}</div>).html_safe
when /<(input|textarea|select)/
if inst ...
引用app/controllers/application_controller.rb
# 禁止使用保留字
rescue_from FriendlyId::ReservedError do |exception|
logger.info "错误提交保留字：#{exception.message}" if exception
flash[:error] = I18n.t('friendly_id.error_messages.reserved')
redirect_to :back
end
# 獲取父节点群
# params = {'other' => 'other','person_id' => 'admin', 'blog_id' => '3', 'post_id' => '1'}
def get_parent
return @parent if defined?(@parent)
parent = {}
params.each do |name, value|
if name =~ /(.+)_id$/
if parent.empty?
paren ...
引用lib/mongoid/counter_cache.rb
# encoding: utf-8
module Mongoid #:nodoc:
# This module handles the behaviour for Counter Cache.
module CounterCache #:nodoc:
extend ActiveSupport::Concern
included do
set_callback :create, :after, :increment_counter
set_callback :destroy, ...