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Rails 4 multiple image or file upload using carrierwave
...'s controller:
@post_attachment = @post.post_attachments.build
For more info see Rails fields_for form not showing up, nested form
If you use Rails 5, then change Rails.application.config.active_record.belongs_to_required_by_default value from true to false (in config/initializers/new_framework_...
How to resolve merge conflicts in Git?
...trl+w. You can directly reach MERGED view using ctrl+w followed by j.
More info about vimdiff navigation here and here
Step 4. You could edit the MERGED view the following way
If you want to get changes from REMOTE
:diffg RE
If you want to get changes from BASE
:diffg BA
If you want to get cha...
Nginx no-www to www and www to no-www
...
Of course, I added that as well as a short info about HSTS.
– Fleshgrinder
Aug 22 '15 at 12:39
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Difference between Grunt, NPM and Bower ( package.json vs bower.json )
...2. Follow our migration guide or refer to webpack 2 documentation for more info." Haha classic web development.
– user643011
Apr 7 '17 at 12:54
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Representational state transfer (REST) and Simple Object Access Protocol (SOAP)
... Protocol"
SOAP is a method of transferring messages, or small amounts of information, over the Internet. SOAP messages are formatted in XML and are typically sent using HTTP (hypertext transfer protocol).
Rest - Representational state transfer
Rest is a simple way of sending and receiving data...
What are the differences between git remote prune, git prune, git fetch --prune, etc
... care about local branches, but remote references? Thanks for the concise info.
– gogogadgetinternet
Nov 20 '13 at 21:12
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iOS 7 status bar back to iOS 6 default style in iPhone app?
... can come up with:
Set UIViewControllerBasedStatusBarAppearance to NO in info.plist (To opt out of having view controllers adjust the status bar style so that we can set the status bar style by using the UIApplicationstatusBarStyle method.)
In AppDelegate's application:didFinishLaunchingWithOption...
Singleton: How should it be used
...nswer that has links to a lot of questions/answers about singletons: More info about singletons here:
24 Answers
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How do I modify fields inside the new PostgreSQL JSON datatype?
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Since these are jsonb operators you just need to typecast to::jsonb
More info : JSON Functions and Operators
You can read my note here
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What is recursion and when should I use it?
...ursion already written and I wrote this intending to be an adjunct to that info, not the top answer. In practice when I need to walk a tree or handle any other nested data structure I usually turn to recursion and I've yet to hit a stack overflow of my own making in the wild.
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