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Find document with array that contains a specific value
...ke MySQL, to find that such solutions work so simply without needing JOINs and additional tables makes me wonder why I haven't started on Mongo sooner. But that's not to say either DBMS is superior over the other - it depends on your use case.
– Irvin Lim
Jun 1...
Get file name and extension in Ruby
...m working on a program to download a video from YouTube, convert it to MP3 and create a directory structure for the files.
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Notification click: activity already open
...certain activity if I click them. I want that, if I click the notification and the activity is already opened, it's not started again, but just brought to front.
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Shorten string without cutting words in JavaScript
I'm not very good with string manipulation in JavaScript, and I was wondering how you would go about shortening a string without cutting any word off. I know how to use substring, but not indexOf or anything really well.
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Using fonts with Rails asset pipeline
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If your Rails version is between > 3.1.0 and < 4, place your fonts in any of the these folders:
app/assets/fonts
lib/assets/fonts
vendor/assets/fonts
For Rails versions > 4, you must place your fonts in the app/assets/fonts folder.
Note: To place fonts...
Uncaught SyntaxError: Unexpected token with JSON.parse
... is it not an Array? Why is it an object. Objects start with { and arrays start with [? or am i false here
– user2396641
Sep 4 '16 at 17:20
4
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How to create an object for a Django model with a many to many field?
...my original suggestion. It works, but isn't optimal. (Note: I'm using Bars and a Foo instead of Users and a Sample, but you get the idea).
bar1 = Bar.objects.get(pk=1)
bar2 = Bar.objects.get(pk=2)
foo = Foo()
foo.save()
foo.bars.add(bar1)
foo.bars.add(bar2)
It generates a whopping total of 7 quer...
Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
...ibrary C drags along Library H, Library E, Library J, Library M, Library K and Library N. This makes it harder to reuse each library independently from the rest - for example in unit testing.
However, in a loosely coupled application, by moving all the references to the Composition Root, the depend...
How do you make a deep copy of an object?
...ep object copy function. What steps you take to ensure the original object and the cloned one share no reference?
19 Answe...
How to use GROUP_CONCAT in a CONCAT in MySQL
...ated) against a unique[Name,id]. Then from obtained table we get all names and values as a single value against each unique id
See this explained here SQL Fiddle Demo (scroll down as it has two result sets)
Edit There was a mistake in reading question, I had grouped only by id. But two group_contac...