大约有 10,000 项符合查询结果（耗时：0.0233秒） [XML]
Is storing a delimited list in a database column really that bad?
... list in sorted order.
To solve these problems, you have to write tons of application code, reinventing functionality that the RDBMS already provides much more efficiently.
Comma-separated lists are wrong enough that I made this the first chapter in my book: SQL Antipatterns: Avoiding the Pitfalls ...
How can I know when an EditText loses focus?
... Where do I add the code you show? If I put it as is in "onCreate" the app crashes
– Jona
Jun 22 '14 at 16:20
@Lé...
Is there a TRY CATCH command in Bash
I'm writing a shell script and need to check that a terminal app has been installed. I want to use a TRY/CATCH command to do this unless there is a neater way.
...
How to add multiple objects to ManyToMany relationship at once in Django ?
...k at the generated SQL I see only a single insert statement: INSERT INTO app_one_twos (one_id, two_id) VALUES (1, 1), (1, 2), (1, 3), (1, 4); This is in Django 1.4.
– Klaas van Schelven
Mar 26 '13 at 16:54
...
Doctrine2: Best way to handle many-to-many with extra columns in reference table
...line tool to generate this new entity as a yml schema file ? This command: app/console doctrine:mapping:import AppBundle yml still generate manyToMany relation for the original two tables and simply ignore the third table instead of concidering it as an entity :/
– Stphane
...
How to keep/exclude a particular package path when using proguard?
I want to exclude some file paths from ProGuard. Example com.myapp.customcomponents
4 Answers
...
How to navigate through textfields (Next / Done Buttons)
...lows the view hierarchy, up to the window and its controller, and then the app delegate. Google "responder chain" for plenty of info.
– davehayden
Jan 10 '12 at 22:35
...
Utility classes are evil? [closed]
...rovide meaningful abstractions for actual computation. However, a balanced approach to using an OO language tends toward immutability and statelessness as they promote modularity and maintainability.
– Alain O'Dea
Feb 13 '16 at 17:43
...
Can I get the name of the current controller in the view?
...equest.url)[:id] %>
#=> '23'
# or display nicely
<%= debug Rails.application.routes.recognize_path(request.url) %>
reference
share
|
improve this answer
|
foll...
How do I get started with Node.js [closed]
... libraries
Wiki List on GitHub/Joyent/Node.js (start here last!)
Other
JSApp.US - like jsfiddle, but for Node.js
Node with VJET JS (for Eclipse IDE)
Production sites with published source:
Node Knockout Hackathon (source)
Freecodecamp - Learn to code for free (source)
Useful Node.js Tools, Tuto...