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Rails Observer Alternatives for 4.0
...le MyConcernModule
extend ActiveSupport::Concern
included do
after_save :do_something
end
def do_something
...
end
end
Next, include that in the models you wish to run the after_save in:
class MyModel < ActiveRecord::Base
include MyConcernModule
end
Depending on what y...
Launch Bootstrap Modal on page load
... edited Oct 9 '17 at 11:56
JH_
41044 silver badges1313 bronze badges
answered Jul 22 '14 at 13:50
JPCSJPCS
...
What is the difference between & vs @ and = in angularJS
...d be an AngularJS interpolated string with embedded expressions (myattr="my_{{helloText}}"). Think of it as "one-way" communication from the parent scope into the child directive. John Lindquist has a series of short screencasts explaining each of these. Screencast on @ is here: https://egghead.io...
java.net.ConnectException: Connection refused
... edited Mar 19 '19 at 2:17
tk_
11.9k55 gold badges6969 silver badges7878 bronze badges
answered Jul 29 '11 at 16:41
...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
Deep Learning（深度学习）学习笔记整理系列之（一）Deep_Learning_Series_1Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zo...
Read/Write 'Extended' file properties (C#)
...gt;();
Shell shell = new ShellClass();
Folder rFolder = shell.NameSpace(_rootPath);
FolderItem rFiles = rFolder.ParseName(filename);
for (int i = 0; i < short.MaxValue; i++)
{
string value = rFolder.GetDetailsOf(rFiles, i).Trim();
arrHeaders.Add(value);
}
...
Tools for JPEG optimization? [closed]
...anFromGermany is right. See reviews here: download.cnet.com/RIOT/3000-12511_4-10911908.html#summaryList
– RNickMcCandless
Mar 17 '14 at 17:08
...
How do I finish the merge after resolving my merge conflicts?
...flict:- error: Failed to merge in the changes. Patch failed at 0001 ADD: _type to styleguide The copy of the patch that failed is found in: .git/rebase-apply/patch When you have resolved this problem, run "git rebase --continue". If you prefer to skip this patch, run "git rebase --skip" instead. ...
file_put_contents(meta/services.json): failed to open stream: Permission denied
...nder a default user depending on your environment it can be something like _www on OSX or www-data on *NIX systems, then the issue comes when you might have run some artisan commands and got some errors, so the artisan will write this file but with a different user because PHP on terminal is execute...
Is there a way to change the environment variables of another process in Unix?
...
Via gdb:
(gdb) attach process_id
(gdb) call putenv ("env_var_name=env_var_value")
(gdb) detach
This is quite a nasty hack and should only be done in the context of a debugging scenario, of course.
...