大约有 33,000 项符合查询结果（耗时：0.0556秒） [XML]
How to set default values in Rails?
...use the same default to be set in any model using it in any standard Rails app.
However, if you only want default values set in specific cases -- say, it's an inherited model that shares a table with some others -- then another elegant way is do it directly in your Rails code when the model object ...
How to mount a host directory in a Docker container
... can you have both ADD . and -v volume mount at same time. using default app_dir if not specify a host mount?
– alexzg
May 5 '14 at 5:02
...
When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...mpatibility. Generally, they should not be used unless interacting with an app/web service/etc designed for them.
– Anthony DiSanti
Jul 12 '11 at 19:03
3
...
How do I use an INSERT statement's OUTPUT clause to get the identity value?
...e this also from e.g. C#, when you need to get the ID back to your calling app - just execute the SQL query with .ExecuteScalar() (instead of .ExecuteNonQuery()) to read the resulting ID back.
Or if you need to capture the newly inserted ID inside T-SQL (e.g. for later further processing), you need...
How to access test resources in Scala?
...omething like ~/lighthouse/target/scala-2.12/test-classes/com/mycompany/myapp/module1/utils/blabla/. Using getClass.getClassLoader.getResource() the portion com/mycompany/myapp/module1/utils/blabla/ is removed
– Polymerase
Apr 4 '18 at 20:48
...
How do you downgrade rubygems?
...sues occur, my recommendation is to go onto the production server that the application is currently running in and check out which rubygems version it is using:
gem -v
For me, it was using 1.8.24. So all I needed to do is downgrade my current rubygems which was generated from "rvm install 1.9.3",...
UIButton title text color
...
the documentation of apple states the following : "Do not use the label object to set the text color or the shadow color. Instead, use the setTitleColor:forState: and setTitleShadowColor:forState: methods of this class to make those changes." No...
Simulate low network connectivity for Android [closed]
I would like to test my application for cases of low network connectivity. Except standing in the elevator, what is the best way to do this? I've tried wrapping my phone in an aluminum foil, but it didn't help much.
...
Compile, Build or Archive problems with Xcode 4 (and dependencies)
..."
Set the Build Setting "Installation Directory" on your Target to $(LOCAL_APPS_DIR)
Change the target build setting "scan all source files for includes" to YES. (link)
With newer versions of Xcode (> 4.2) you might want to read this question related to workspaces.
Manually delete the project.xcw...
How to intercept all AJAX requests made by different JS libraries
I am building a web app with different JS libraries (AngularJS, OpenLayers,...) and need a way to intercept all AJAX responses to be able, in case the logged user session expired (response gets back with 401 Unauthorized status), to redirect him to the login page.
...