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Rails select helper - Default selected value, how?
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The problem with all of these answers is they set the field to the default value even if you're trying to edit your record.
You need to set the default to your existing value and then only set it to the actual default if you don't have a value. Like so:
f.select :field...
How to compile a static library in Linux?
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Switching to landscape mode in Android Emulator
...n myself after a couple hours of searching the documentation and Google. I set the orientation of my Android app to landscape in the AndroidManifest.xml file:
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Convert Python dictionary to JSON array
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String's Maximum length in Java - calling length() method
In Java , what is the maximum size a String object may have, referring to the length() method call?
7 Answers
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
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@q4w56 backslash isn't in the set of characters specified in the original question, so not matching backslash is correct. :)
– Jeff Hillman
Jun 2 '17 at 23:32
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Undoing a git rebase
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The easiest way would be to find the head commit of the branch as it was immediately before the rebase started in the reflog...
git reflog
and to reset the current branch to it (with the usual caveats about being absolutely sure before reseting with ...
UITextField border color
I have really great wish to set my own color to UITextField border. But so far I could find out how to change the border line style only.
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How to go to each directory and execute a command?
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You can do the following, when your current directory is parent_directory:
for d in [0-9][0-9][0-9]
do
( cd "$d" && your-command-here )
done
The ( and ) create a subshell, so the current directory isn't changed in the main sc...
Commands out of sync; you can't run this command now
...You stated that "mysqli uses unbuffered queries by default". So how can we set it to do otherwise?
– Pacerier
Jun 29 '15 at 8:34
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