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Rails find record with zero has_many records associated [duplicate]
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Bah, found it here: https://stackoverflow.com/a/5570221/417872
City.includes(:photos).where(photos: { city_id: nil })
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How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?
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edited May 21 '14 at 11:04
skywinder
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answe...
How to find if a native DLL file is compiled as x64 or x86?
...s or /all flag and its the first file header listed.
dumpbin /headers cv210.dll
64-bit
Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file cv210.dll
PE signature found
File Type: DLL
FILE HEADER VALUES
8664 ...
How to convert std::string to LPCSTR?
...LPCSTR (Long Pointer to Constant STRing) -- means that it's a pointer to a 0 terminated string of characters. W means wide string (composed of wchar_t instead of char).
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Is there a built in function for string natural sort?
...tsort import natsorted, ns
>>> x = ['Elm11', 'Elm12', 'Elm2', 'elm0', 'elm1', 'elm10', 'elm13', 'elm9']
>>> natsorted(x, key=lambda y: y.lower())
['elm0', 'elm1', 'Elm2', 'elm9', 'elm10', 'Elm11', 'Elm12', 'elm13']
>>> natsorted(x, alg=ns.IGNORECASE) # or alg=ns.IC
['elm0...
Preventing Laravel adding multiple records to a pivot table
...te/…
– Rob Gordijn
Jul 5 '13 at 8:08
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Maintain the aspect ratio of a div with CSS
...entage value for padding-bottom, like this:
.demoWrapper {
padding: 10px;
background: white;
box-sizing: border-box;
resize: horizontal;
border: 1px dashed;
overflow: auto;
max-width: 100%;
height: calc(100vh - 16px);
}
div {
width: 100%;
padding-bottom: 75%;
background: g...
Alter column, add default constraint
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answered Jan 19 '10 at 17:07
SQLMenaceSQLMenace
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jQuery append() vs appendChild()
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The main difference is that appendChild is a DOM method and append is a jQuery method. The seco...
Why is reading lines from stdin much slower in C++ than Python?
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