大约有 45,009 项符合查询结果（耗时：0.0634秒） [XML]
How can I rename a database column in a Ruby on Rails migration?
...FixColumnName
# creates db/migrate/xxxxxxxxxx_fix_column_name.rb
Then edit the migration to do your will:
# db/migrate/xxxxxxxxxx_fix_column_name.rb
class FixColumnName < ActiveRecord::Migration
def self.up
rename_column :table_name, :old_column, :new_column
end
def self.down
#...
Difficulty with ng-model, ng-repeat, and inputs
I am trying to allow the user to edit a list of items by using ngRepeat and ngModel . ( See this fiddle .) However, both approaches I've tried lead to bizarre behavior: one doesn't update the model, and the other blurs the form on each keydown.
...
How to calculate moving average using NumPy?
...nt a straightforward non-weighted moving average, you can easily implement it with np.cumsum, which may be is faster than FFT based methods:
EDIT Corrected an off-by-one wrong indexing spotted by Bean in the code. EDIT
def moving_average(a, n=3) :
ret = np.cumsum(a, dtype=float)
ret[n:] = ...
Difference between / and /* in servlet mapping url pattern
...uch as the default servlet and the JSP servlet. Whatever request you fire, it will end up in that servlet. This is thus a bad URL pattern for servlets. Usually, you'd like to use /* on a Filter only. It is able to let the request continue to any of the servlets listening on a more specific URL patte...
When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)
I have a Spring MVC web app which uses Spring Security. I want to know the username of the currently logged in user. I'm using the code snippet given below . Is this the accepted way?
...
How to disable action bar permanently
...le name="NoActionBar" parent="@android:style/Theme.Holo.Light">
<item name="android:windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>
</style>
and then set it as your activity's theme:
<activity android:theme="@style/NoAction...
TypeError: $ is not a function when calling jQuery function
...in Wordpress you must use jQuery, and $ is not used (this is for compatibility with other libraries).
Your solution of wrapping it in function will work fine, or you can load jQuery some other way (but that's probably not a good idea in Wordpress).
If you must use document.ready, you can actually ...
nServiceBus vs Mass Transit vs Rhino Service Bus vs other?
...s, how to stop rolling back endlessly (poison messages), how to integrate with long-running workflows so that the state management boundaries line up, and more.
You will probably want some kind of durable/transactional messaging infrastructure, so not using MSMQ you'd be left with Service Broker on...
How to access custom attributes from event object in React?
...act is able to render custom attributes as described at
http://facebook.github.io/react/docs/jsx-gotchas.html :
15 Answer...
How do I write a for loop in bash
...
From this site:
for i in $(seq 1 10);
do
echo $i
done
share
|
improve this answer
|
follow
...