大约有 9,146 项符合查询结果（耗时：0.0258秒） [XML]
rake db:schema:load vs. migrations
...ery simple question here - if migrations can get slow and cumbersome as an app gets more complex and if we have the much cleaner rake db:schema:load to call instead, why do migrations exist at all?
...
Is there a way to get colored text in Github Flavored Markdown? [duplicate]
...ode symbols, though it depends on the font rendering them in color (as it happens to be appearing for me on Windows 10 and Mac 10.12.5, at least, though on the Mac at least, the up/down-pointing small red triangles don't show in red):
RED APPLE (🍎): ????
GREEN APPLE (🍏): ??...
Prevent dialog dismissal on screen rotation in Android
...
There is a button in my app to call .show(), I have to remember the state of the alert dialog, showing/dismissed. Is there a way to keep the dialog without calling .show()?
– Alpha Huang
Mar 24 '16 at 18:38
...
Why fragments, and when to use fragments instead of activities?
... me elaborate;
The ActionBar. If you want tabs up there to navigate your app, you quickly see that ActionBar.TabListener interface gives you a FragmentTransaction as an input argument to the onTabSelected method. You could probably ignore this, and do something else and clever, but you'd be workin...
Why doesn't django's model.save() call full_clean()?
...
I see two problems with this approach 1) in case of ModelForm's full_clean() would be called twice: by the form and by the signal 2) If the form excludes some fields, they would still be validated by the signal.
– mehmet
...
iOS 7 TableView like in Settings App on iPad
...ant to have a group UITableView with the style same like the iPad Settings application Detail view for iOS 7 .
15 Answer...
How to create EditText with cross(x) button at end of it?
... this is a inefficient way of doing it. yanchenko's answer is right approach of using compound drawables.
– numan salati
Apr 10 '13 at 15:48
4
...
Unable to generate an explicit migration in entity framework
...
It tells you that there is some unprocessed migration in your application and it requires running Update-Database before you can add another migration.
share
|
improve this answer
...
How to check task status in Celery?
... your use case you already has the instance, you are good to go. But what happen if you only have the task id, and need to instantiate an async_result instance to be able to call async_result.get()? This is an instance of the AsyncResult class, but you cannot use the raw class celery.result.AsyncRes...
Detect if Android device has Internet connection
... you can just take a different website (e.g. baidu.com when deploying your app in China), or you can try a second site if the first one fails to make sure there is no connection.
– THelper
Mar 29 '12 at 11:10
...