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Rails 4 multiple image or file upload using carrierwave
How can I upload multiple images from a file selection window using Rails 4 and CarrierWave? I have a post_controller and post_attachments model. How can I do this?
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How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
...odules. How and why this was created instead of in my /usr/local folder, I do not know.
Deleting these local references fixed the phantom v0.6.1-pre. If anyone has an explanation, I'll choose that as the correct answer.
EDIT:
You may need to do the additional instructions as well:
sudo rm -rf /u...
Batch script loop
...
for /l is your friend:
for /l %x in (1, 1, 100) do echo %x
Starts at 1, steps by one, and finishes at 100.
Use two %s if it's in a batch file
for /l %%x in (1, 1, 100) do echo %%x
(which is one of the things I really really hate about windows scripting)
If you have ...
Using link_to with embedded HTML
...
Two ways. Either:
<%= link_to user_path(@user) do %>
<i class="icon-ok icon-white"></i> Do it@
<% end %>
Or:
<%= link_to '<i class="icon-ok icon-white"></i> Do it@'.html_safe, user_path(@user) %>
...
Skip first entry in for loop in python?
In python, How do I do something like:
13 Answers
13
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How do I use define_method to create class methods?
...
I think in Ruby 1.9 you can do this:
class A
define_singleton_method :loudly do |message|
puts message.upcase
end
end
A.loudly "my message"
# >> MY MESSAGE
sha...
Git rebase --continue complains even when all merge conflicts have been resolved
...ntly being applied to the branch you rebase on. After fixing the patch and doing
git add your/conflicted/file
git status
you will get a (usually green) line showing the modified file
modified: your/conflicted/file
git rebase --continue will work fine in this situation.
Sometimes, howev...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
... third one I can think of is nested if's:
if (cond1)
if (cond2)
doSomething();
Now, assume you now want to doSomethingElse() when cond1 is not met (new feature). So:
if (cond1)
if (cond2)
doSomething();
else
doSomethingElse();
which is obviously wrong, since the else ass...
How do you Encrypt and Decrypt a PHP String?
...
Before you do anything further, seek to understand the difference between encryption and authentication, and why you probably want authenticated encryption rather than just encryption.
To implement authenticated encryption, you want to ...
Do a “git export” (like “svn export”)?
...his is with git archive. If you really need just the expanded tree you can do something like this.
git archive master | tar -x -C /somewhere/else
Most of the time that I need to 'export' something from git, I want a compressed archive in any case so I do something like this.
git archive master |...