大约有 47,000 项符合查询结果（耗时：0.0664秒） [XML]
Is there any Rails function to check if a partial exists?
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I know this has been answered and is a million years old, but here's how i ended up fixing this for me...
Rails 4.2
First, i put this in my application_helper.rb
def render_if_exists(path_to_partial)
render path_to_part...
Parsing a string into a boolean value in PHP
... This function works flawlessly, thank you! But your links are now 404.
– servermanfail
Dec 21 '18 at 6:27
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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
...s way:
try:
code_that_executes_bad_query()
# transaction on DB is now bad
except:
pass
# transaction on db is still bad
code_that_executes_working_query() # raises transaction error
There nothing wrong with the second query, but since the real error was caught, the second query is th...
Set selected index of an Android RadioGroup
...e RadioButtons are added to the radioGroup instead of the layout
}
}
Now Check a button using,
int radio_button_Id = radioGroup.getChildAt(index).getId();
radioGroup.check( radio_button_Id );
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Check play state of AVPlayer
Is there a way to know whether an AVPlayer playback has stalled or reached the end?
11 Answers
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How to retrieve a file from a server via SFTP?
...s left as an exercise for the reader :-)
JSch jsch = new JSch();
String knownHostsFilename = "/home/username/.ssh/known_hosts";
jsch.setKnownHosts( knownHostsFilename );
Session session = jsch.getSession( "remote-username", "remote-host" );
{
// "interactive" version
// can selectively up...
How to auto-remove trailing whitespace in Eclipse?
...Edit. Unfortunately, it's for the entire file being edited .. still don't know how to do it for only the lines I changed - looks like it's probably impossible right now.
– Jan Żankowski
Aug 6 '09 at 14:39
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YouTube Video Embedded via iframe Ignoring z-index?
...ost), appending just ?wmode=transparent as a new query string to the URL.
Now, regardless of what may or may not be on the end of the YouTube URL as a query string already, it gets preserved, and the required wmode parameters get injected or added without damage to what was there before.
Here's th...
Purge Kafka Topic
...r is correct, that method has been deprecated. Topic configuration should now be done via kafka-configs.
kafka-configs --zookeeper localhost:2181 --entity-type topics --alter --add-config retention.ms=1000 --entity-name MyTopic
Configurations set via this method can be displayed with the command...
possible EventEmitter memory leak detected
...dding so many listeners to the same event. Only increase the limit if you know why so many listeners are being added and are confident it's what you really want.
I found this page because I got this warning and in my case there was a bug in some code I was using that was turning the global object i...