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How to debug Ruby scripts [closed]
...uickly examining an object or method (e.g. is it nil?) and for immediately confirming whether a line of code is even getting executed at all within a given context.
2. Fallback: Use a ruby IRB debugger like byebug or pry
Only after you have information about the state of your codes execution flow ...
How to implement has_many :through relationships with Mongoid and mongodb?
...uire multiple queries.
https://github.com/mongoid/mongoid/issues/544
Normally if you have a many-many relationship in a RDBMS you would model that differently in MongoDB using a field containing an array of 'foreign' keys on either side. For example:
class Physician
include Mongoid::Document
...
How do I sort an array of hashes by a value in the hash?
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Actually, Array#sort_by! is new in Ruby 1.9.2. Available today to all Ruby version by requiring my backports gem too :-)
– Marc-André Lafortune
Jul 1 '10 at 4:19
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How to Configure SSL for Amazon S3 bucket
...uest a certificate. Amazon gives them for free. Ones you have successfully confirmed the certification, assign it to your Cloud Front distribution. Also remember to set the rule to re-direct http to https.
I'm hosting couple of static websites on Amazon S3, like my personal website to which I have...
SVN encrypted password store
I installed SVN on a Ubuntu machine and I can't get my head around something.
3 Answers
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What's the difference between libev and libevent?
... each of these, by not using global variables but using a loop context for all functions, by using small watchers for each event type (an I/O watcher uses 56 bytes on x86_64 compared to 136 for libevent), allowing extra event types such as timers based on wallclock vs. monotonic time, inter-thread i...
Why must we define both == and != in C#?
...eate the != operator? I can't know for sure unless someone from Microsoft confirms this, but this is what I can determine from reasoning on the facts.
To prevent unexpected behavior
Perhaps I want to do a value comparison on == to test equality. However, when it came to != I didn't care at all...
Android: How can I get the current foreground activity (from a service)?
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@Sam I can confirm that this Service works perfectly. One strange behavior, I used an intent in the main activity to enable Accessibility Service. After this first activation the service it's activated but onAccessibilityEvent does not ...
How can I install pip on Windows?
...taller:
https://bootstrap.pypa.io/get-pip.py
If paranoid, inspect file to confirm it isn't malicious
(must b64 decode).
Open a console in the download folder as Admin and run
get-pip.py. Alternatively, right-click its icon in Explorer and choose the "run as Admin...".
The new binaries pip.exe (a...
How to reduce iOS AVPlayer start delay
Note, for the below question: All assets are local on the device -- no network streaming is taking place. The videos contain audio tracks.
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