大约有 40,000 项符合查询结果（耗时：0.0420秒） [XML]
Can someone explain collection_select to me in clear, simple terms?
...order(..) or something like that.
# In your example it is:
Author.all,
# then you should specify methods for generating options
:id, # this is name of method that will be called for every row, result will be set as key
:name_with_initial, # this is name of method that will be ...
Converting an array of objects to ActiveRecord::Relation
I have an array of objects, let's call it an Indicator . I want to run Indicator class methods (those of the def self.subjects variety, scopes, etc) on this array. The only way I know to run class methods on a group of objects is to have them be an ActiveRecord::Relation. So I end up resorting to...
Logging framework incompatibility
I'm building a small Java app and hoping to use logback for logging.
3 Answers
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java.net.ConnectException: Connection refused
...ing this error. after reading a lot from the buddy WEB, I then closed out all the simulators and eclipse, killed the ADP in the task manager and then restarted the Eclipse and everything is started working properly. I think when you have multiple simulators running and then you try to connect devi...
What's the difference between a Python module and a Python package?
...stem in the reference documentation: It’s important to keep in mind that all packages are modules.
– Martijn Pieters♦
Apr 23 '18 at 21:42
7
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Grep only the first match and stop
...two the last time I looked. It seems like I have too many arguments, especially without getting the desired outcome. :-/
5...
Pushing a local branch up to GitHub
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If you are really lazy, you can push all local branches by simply using
git push --all
--all
Push all branches (i.e. refs under refs/heads/); cannot be used with
other <refspec>.
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Searching word in vim?
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Because the OP asked to search specifically for "word". The solution posted here basically does a search for %word%, whether its thiswordisawesome or word56 or 26word.
– Jguy
Jan 6 '16 at 16:21
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How to get controls in WPF to fill available space?
Some WPF controls (like the Button ) seem to happily consume all the available space in its' container if you don't specify the height it is to have.
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MongoDB: update every document on one field
I have a collected named foo hypothetically.
4 Answers
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