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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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Could not load file or assembly System.Web.Http.WebHost after published to Azure web site
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edited Dec 2 '13 at 7:49
answered Dec 2 '13 at 7:43
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How to avoid overflow in expr. A * B - C * D
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Anirudh RamanathanAnirudh Ramanathan
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How to specify different Debug/Release output directories in QMake .pro file
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answered Apr 7 '16 at 20:34
Unslander MonicaUnslander Monica
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Difference Between Select and SelectMany
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Graham
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answered Jun 6 '09 at 5:23
Mike TwoMike Two
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How do you disable browser Autocomplete on web form field / input tag?
...ould be stored on the client. Note the following commentary from May 5, 2014:
The password manager always prompts if it wants to save a password. Passwords are not saved without permission from the user.
We are the third browser to implement this change, after IE and Chrome.
According ...
How would Git handle a SHA-1 collision on a blob?
...0 (Debian version). I basically just reduced the hash size from 160-bit to 4-bit by applying the following diff and rebuilding git:
--- git-2.7.0~rc0+next.20151210.orig/block-sha1/sha1.c
+++ git-2.7.0~rc0+next.20151210/block-sha1/sha1.c
@@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou
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Matrix Transpose in Python
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answered Feb 8 '11 at 19:41
jfsjfs
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ValueError: setting an array element with a sequence
...d like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([[1,2], [2, [3, 4]]])
will yield this error message, because the shape of the input list isn't a (generalised) "box" that can be turned into a multidimensional array. So probably UnFilteredDuringExSu...
How to calculate md5 hash of a file using javascript
...3, here's how the major browsers stack up:
FF 3.6 supports FileReader, FF4 supports even more file based functionality
Chrome has supported the FileAPI since version 7.0.517.41
Internet Explorer 10 has partial FileAPI support
Opera 11.10 has partial support for FileAPI
Safari - I couldn't find a g...