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How to use the “number_to_currency” helper method in the model rather than view?
... a new class for generating your output instead of making your data model know what a CSV is (because it shouldn’t).
As for using helpers for ActiveModel validation errors in the model, well, I’m sorry but ActiveModel/Rails has screwed us all there by forcing error messages to be realized in th...
Android Studio installation on Windows 7 fails, no JDK found
...However, I capitalized the "C" and removed the trailing slash and it works now: "C:\Program Files\Java\jdk1.7.0"
– ASeale
May 16 '13 at 12:08
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What is the best java image processing library/approach? [closed]
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I know this question is quite old, but as new software comes out it does help to get some new links to projects that might be interesting for folks.
imgscalr is pure-Java image resizing (and simple ops like padding, cropping, r...
ggplot: How to increase spacing between faceted plots?
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Due to another update, the incantation is now theme(panel.margin = unit(2, "lines"))
– David J. Harris
Nov 8 '16 at 16:49
14
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How to create a directory using nerdtree
...s 'm'; you should see a menu at the bottom. Type in 'a' for add childnode. Now input the directory you want to create, making sure to add a '/' at the end, otherwise the script would create a file.
AFAIK NERDTree cannot create parent directories like 'mkdir -p' does.
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Which CheckedListBox event triggers after a item is checked?
...gh I guess it could break a lot of code if Microsoft changed the behaviour now. The docs explicitly state The check state is not updated until after the ItemCheck event occurs. A different event or non-arbitrary workaround would be nice IMO.
– Dunc
Jun 4 '18 a...
python setup.py uninstall
...d also undo any other stuff that installation did manually.
If you don't know the list of all files, you can reinstall it with the --record option, and take a look at the list this produces.
To record a list of installed files, you can use:
python setup.py install --record files.txt
Once you wa...
Convert seconds to HH-MM-SS with JavaScript?
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Don't you know datejs? it is a must know.
Using datejs, just write something like:
(new Date).clearTime()
.addSeconds(15457)
.toString('H:mm:ss');
--update
Nowadays date.js is outdated and not maintained, so use...
How to send email to multiple recipients using python smtplib?
...m to send an email from a python script and with this piece of code, i can now send the email.
– fear_matrix
Jul 14 '15 at 10:36
7
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What is unit testing? [closed]
...er way to look at unit testing is that you write the tests first. This is known as Test-Driven Development (TDD for short). TDD brings additional advantages:
You don't write speculative "I might need this in the future" code -- just enough to make the tests pass
The code you've written is always c...