大约有 40,000 项符合查询结果（耗时：0.0298秒） [XML]
Rails find_or_create_by more than one attribute?
...e factored out of rails just the attribute specific ones.
https://github.com/rails/rails/blob/4-2-stable/guides/source/active_record_querying.md
Example
GroupMember.find_or_create_by_member_id_and_group_id(4, 7)
became
GroupMember.find_or_create_by(member_id: 4, group_id: 7)
...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
... AMI it will contain everything as it is now.
Update: to clarify based on comments by mattgmg1990 and glenn bech:
Note that there is a difference between "stop" and "terminate". If you "stop" an instance that is backed by EBS then the information on the root volume will still be in the same state...
How to download a file from a URL in C#?
...g (var client = new WebClient())
{
client.DownloadFile("http://example.com/file/song/a.mpeg", "a.mpeg");
}
share
|
improve this answer
|
follow
|
...
What's the fastest way to delete a large folder in Windows?
...
Use Windows Command Prompt:
rmdir /s /q folder
share
|
improve this answer
|
follow
|
...
Showing Travis build status in GitHub repo
I remember recently seeing the Travis build status of a pr or commit in GitHub browsing the repository (but can't find where). I'm not talking about the Travis build status images in README.md but an actual GitHub feature (green box with a friendly check mark).
...
How to configure a HTTP proxy for svn
I want to check code from the repository http://code.sixapart.com/svn/perlbal/ . I can only access the the repository url by setting a proxy. I guess if I want to get the code from the same URL by svn I need to configure a proxy, too. So does anyone of you could tell me how to configure a HTTP pro...
Is it possible to use pip to install a package from a private GitHub repository?
...vate GitHub repository. For a public repository, I can issue the following command which works fine:
17 Answers
...
Get an element by index in jQuery
...eve the DOM elements matched by the jQuery object.
See: https://api.jquery.com/get/
.eq(index) Returns: jQuery
Description: Reduce the set of matched elements to the one at the specified index.
See: https://api.jquery.com/eq/
...
Can't choose class as main class in IntelliJ
...gure your source and test roots and it should work.
https://www.jetbrains.com/idea/webhelp/configuring-content-roots.html
Since you stated that these are tests you should probably go with them marked as Test Source Root instead of Source Root.
...
How Pony (ORM) does its tricks?
...here.
Pony translates Python generator into SQL query in three steps:
Decompiling of generator bytecode and rebuilding generator AST
(abstract syntax tree)
Translation of Python AST into "abstract SQL" -- universal
list-based representation of a SQL query
Converting abstract SQL representation in...