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Rails 4 multiple image or file upload using carrierwave
...k at CarrierWave's documentation, this is actually very easy now.
https://github.com/carrierwaveuploader/carrierwave/blob/master/README.md#multiple-file-uploads
I will use Product as the model I want to add the pictures, as an example.
Get the master branch Carrierwave and add it to your Gemfile...
OS X Terminal Colors [closed]
...re is a great repository with some nice presets:
iTerm2 Color Schemes on Github by mbadolato
Bonus: Choose "Show/hide iTerm2 with a system-wide hotkey" and bind the key with BetterTouchTool
for an instant hide/show the terminal with a mouse gesture.
...
How do I use Assert to verify that an exception has been thrown?
...009/01/17/unit-testing-and-expected-exceptions.aspx
And here:
http://xunit.github.io/docs/comparisons.html
If you need to test for exceptions, there are less frowned upon ways. You can use the try{act/fail}catch{assert} method, which can be useful for frameworks that don't have direct support for ex...
How to list the properties of a JavaScript object?
...Object.getOwnPropertyNames (see its support in my compat. table — kangax.github.com/es5-compat-table)
– kangax
Oct 27 '10 at 2:43
2
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My docker container has no internet
...e docker to recreate the bridge and reinit all the network rules
https://github.com/dotcloud/docker/issues/866#issuecomment-19218300
Seems the interface was 'hanged' somehow.
Update for more recent versions of docker:
The above answer might still get the job done for you but it has been quite a...
How do I check CPU and Memory Usage in Java?
...
@sbeliakov You can use JavaSysmon (github.com/jezhumble/javasysmon ) , although i recommend you open a new question and i will answer it . The library on GitHub has a bug and recognizes 32 bit as 64 bit , but i found a work around mixing different jars [ gith...
Retaining file permissions with Git
...e was that I would then be able to push web content from our dev server to github, pull it to our production server, and spend the rest of the day at the pool.
...
express 4.0 , express-session with odd warning message
...
I found issue useful:
https://github.com/expressjs/session/issues/56
app.use(session({
secret: cookie_secret,
resave: true,
saveUninitialized: true
}));
share
...
Force LF eol in git repo and working copy
I have a git repository hosted on github. Many of the files were initially developed on Windows, and I wasn't too careful about line endings. When I performed the initial commit, I also didn't have any git configuration in place to enforce correct line endings. The upshot is that I have a number of ...
Matplotlib tight_layout() doesn't take into account figure suptitle
...not take fig.suptitle() into account. There is an open issue about this on GitHub: https://github.com/matplotlib/matplotlib/issues/829 [closed in 2014 due to requiring a full geometry manager - shifted to https://github.com/matplotlib/matplotlib/issues/1109 ].
If you read the thread, there is a sol...