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How to express a One-To-Many relationship in Django
...ionship on the PhoneNumber model and not on the Dude/Business models. When extra terrestrials come to Earth, and we want to add an Alien model, we need to modify the PhoneNumber (assuming the ETs have phone numbers) instead of simply adding a "phone_numbers" field to the Alien model.
Introduce the...
Max retries exceeded with URL in requests
... was specified in hints.ai_flags and service was not a numeric port-number string. It probably looked like the sleep fixed it, but you probably just slept through a transient DNS resolver issue.
– lingfish
Jun 6 '17 at 23:13
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Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
...tion)
Solution: Go to http://www.google.com/accounts/DisplayUnlockCaptcha and click continue (this will grant access for 10 minutes for registering new apps).
After this my app in production started sending emails ;)
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Fastest Way to Serve a File Using PHP
...rls (mod_rewrite on apache)
Crypto functions (mcrypt php module)
Multibyte string support (mbstring php module)
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Emulating a do-while loop in Bash
...apability is pretty cool! You could also use it to insert a delimiter in a string. Thanks!
– Paused until further notice.
Oct 12 '18 at 18:48
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Why do people say that Ruby is slow? [closed]
... always an issue if it impacts usability. True, scanning an xml file for a string in one second or three doesn't matter from a pure numbers point of view, but a couple seconds difference can make a big difference in usability when you're talking about a user-facing application.
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Difference between @import and link in CSS
I'm learning some CSS to tweak my project template. I come to this problem and didn't find a clear answer on the web. Is there a difference between using @import or link in CSS?
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send/post xml file using curl command line
...=val as many times as you need. Enclosing all post parameters in one large string separated by & does not work.
– hgolov
Jan 20 '14 at 12:24
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TCP loopback connection vs Unix Domain Socket performance
Working on an Android and iOS based application which require communication with a server running in the same device. Currently using TCP loopback connection for communicating with App and Server (App written in user layer, server written in C++ using Android NDK)
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What is the best way to detect a mobile device?
... User agent sniffing is a very noddy detection technique, user agent strings are a constant moving target, they should not be trusted alone. People up-voting this post should consider researching more.
– Rob
Jan 9 '12 at 10:42
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