liwh

jQuery
   1.特点:
   小巧
   功能强
   跨浏览器
   插件

   2.使用
    实际是js文件
    a)  复制js到WebRoot

liwh

>> c.errors.add_on_blank('instructor','not be blank')
=> ["instructor"]
>> c.errors
=> #<ActiveRecord::Errors:0xb01f150c @errors={"instructor"=>["not be blank"]}, @base=#<Conversation id: "3e7f4481-e96b-012d-7fdc-042b2b5ce4fb", state: 10, tag: "20101214-2-00022", title: "死亡索赔", aim: 1, emergency: 1, security: 1, kind_id: 1, content: "当事人利爱琼称有29人来我厂索赔，事�...", record_id: nil, district: "440310008000", ownerdistrict: "440310008000", sub_kind_id: 199, place: "坑梓", source: 3, reportor_id: "3e7f4480-e96b-012d-7fdc-042b2b5ce4fb", reported_at: "2010-12-14 12:46:00", levels: 2, finishdate: "2011-01-27 00:00:00", advice: "请司法所处理,并将处理结果于15个工作...", remark: nil, flag: 1, creator_id: "57ec3557-c4dc-4ac8-87a6-a13ad4104686", modifier_id: "57ec3557-c4dc-4ac8-87a6-a13ad4104686", dispatched_at: "2010-12-16 18:29:35", finished_at: nil, created_at: "2010-12-14 12:47:57", updated_at: "2010-12-31 17:59:31", count: nil, grid_id: nil, building_id: nil, warndate: "2011-01-25 00:00:00", dealdistrict: "440310008000", instruct: "同意拟办意见."

liwh

>> c.errors.add_on_blank('instructor','not be blank')
=> ["instructor"]
>> c.errors
=> #<ActiveRecord::Errors:0xb01f150c @errors={"instructor"=>["not be blank"]}, @base=#<Conversation id: "3e7f4481-e96b-012d-7fdc-042b2b5ce4fb", state: 10, tag: "20101214-2-00022", title: "死亡索赔", aim: 1, emergency: 1, security: 1, kind_id: 1, content: "当事人利爱琼称有29人来我厂索赔，事�...", record_id: nil, district: "440310008000", ownerdistrict: "440310008000", sub_kind_id: 199, place: "坑梓", source: 3, reportor_id: "3e7f4480-e96b-012d-7fdc-042b2b5ce4fb", reported_at: "2010-12-14 12:46:00", levels: 2, finishdate: "2011-01-27 00:00:00", advice: "请司法所处理,并将处理结果于15个工作...", remark: nil, flag: 1, creator_id: "57ec3557-c4dc-4ac8-87a6-a13ad4104686", modifier_id: "57ec3557-c4dc-4ac8-87a6-a13ad4104686", dispatched_at: "2010-12-16 18:29:35", finished_at: nil, created_at: "2010-12-14 12:47:57", updated_at: "2010-12-31 17:59:31", count: nil, grid_id: nil, building_id: nil, warndate: "2011-01-25 00:00:00", dealdistrict: "440310008000", instruct: "同意拟办意见."

liwh

// remove crappy contents from news.google.de
$("div.source, span.source").filter(function() { return /(BILD|WELT ONLINE)/.test( $(this).text() ) }).parent().fadeOut();
$("h2.title > a").filter(function() { return /.*(welt.de|bild.de).*/.test( $(this).attr('href') ) } ).parents("div.story").fadeOut();

liwh

可用request.query_string获取页面中传过来的所有params参数，例如：
"#{export_excel_path(:from=>'aaa')&#{request.query_string}"

liwh

git reset --hard <old-commit-id>
git push -f

liwh

if RUBY_VERSION =~ /1.9/
    Encoding.default_external = Encoding::UTF_8
    Encoding.default_internal = Encoding::UTF_8
end 
[2010-12-16 20:23:45] ERROR ArgumentError: invalid byte sequence in US-ASCII

liwh

#!/bin/sh
d=`date +%Y-%m-%d`
echo $d
vim ./_posts/${d}-$1.textile

liwh

http://www.ibm.com/developerworks/cn/java/j-cb08016/

liwh

:6,35 s/s/S/g 替换6到35行