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How to implement has_many :through relationships with Mongoid and mongodb?
...ction via another it would still require 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 Phys...
.NET HttpClient. How to POST string value?
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First C# SSSCE I come across. As if it were such a breeze to get it running if you're coming from a language with a proper IDE.
– Buffalo
Apr 1 '15 at 6:12
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EC2 instance types's exact network performance?
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Bandwidth is tiered by instance size, here's a comprehensive answer:
For t2/m3/c3/c4/r3/i2/d2 instances:
t2.nano = ??? (Based on the scaling factors, I'd expect 20-30 MBit/s)
t2.micro = ~70 MBit/s (qiita says 63 MBit/s) - t1.micro gets about ~100 Mbit/s
t2.small = ~12...
How to parse XML in Bash?
...t I didn't feel like this much editing should be done to someone else, and comments don't allow formatting, so...
rdom () { local IFS=\> ; read -d \< E C ;}
Let's call that "read_dom" instead of "rdom", space it out a bit and use longer variables:
read_dom () {
local IFS=\>
read...
What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...(variable) name return the value inside the variable name, but what is $(command) supposed to return? Does it return the value after executing the command? In that case, we can use ` to execute the command.
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C++ Convert string (or char*) to wstring (or wchar_t*)
...ng wide = converter.from_bytes(narrow_utf8_source_string);
Longer online compilable and runnable example:
(They all show the same example. There are just many for redundancy...)
http://ideone.com/KA1oty
http://ide.geeksforgeeks.org/5pRLSh
http://rextester.com/DIJZK52174
Note (old):
As pointe...
How to Customize the time format for Python logging?
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Merge two Git repositories without breaking file history
...ories? ) and following those instructions mostly works, except that when I commit the subtree merge all of the files from the old repositories are recorded as new added files. I can see the commit history from the old repositories when I do git log , but if I do git log <file> it shows onl...