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find vs find_by vs where

...s you use a bit more complex logic for when the conventional helpers won't do, and it returns an array of items that match your conditions (or an empty array otherwise). share | improve this answer ...
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How do I associate file types with an iPhone application?

...ustom URL schemes. You can register your application to handle particular document types, and any application that uses a document controller can hand off processing of these documents to your own application. For example, my application Molecules (for which the source code is available) handles t...
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Dynamic variable names in Bash

... Hmm. I'm using bash 4.2.45(2) and declare doesn't list it as an option declare: usage: declare [-afFirtx] [-p] [name[=value] ...]. It seems to be working correctly however. – fent Dec 2 '13 at 15:56 ...
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Compiling C++ on remote Linux machine - “clock skew detected” warning

... so far has been performed in the university's labs, but today I have been doing some work at home that generated an interesting warning. ...
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Get all files that have been modified in git branch

... merge-base <notMainDev> <mainDev>) If your particular shell doesn't understand the $() construct, use back-ticks instead. share | improve this answer | follow ...
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How to get an IFrame to be responsive in iOS Safari?

...*width: 100%; is there so the code would remain IE6 compatible, but if you do not care for IE6 you can omit it. Demo As you can see now, the div#ScrolledArea width is actually 100% and the overflow: scroll; can do it's thing and hide the overflowing content. If you have access to the iframe cont...
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Measuring function execution time in R

... Another possible way of doing this would be to use Sys.time(): start.time <- Sys.time() ...Relevent codes... end.time <- Sys.time() time.taken <- end.time - start.time time.taken Not the most elegant way to do it, compared to the answere...
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]

... dict.keys() and dict.items()) returns a view, rather than a list. See the documentation here. You therefore need to wrap your call to dict.values() in a call to list like so: v = list(d.values()) {names[i]:v[i] for i in range(len(names))} ...
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Scanning Java annotations at runtime [closed]

...nentProvider scanner = new ClassPathScanningCandidateComponentProvider(<DO_YOU_WANT_TO_USE_DEFALT_FILTER>); scanner.addIncludeFilter(new AnnotationTypeFilter(<TYPE_YOUR_ANNOTATION_HERE>.class)); for (BeanDefinition bd : scanner.findCandidateComponents(<TYPE_YOUR_BASE_PACKAGE_HERE&gt...
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How to add a custom loglevel to Python's logging facility

I'd like to have loglevel TRACE (5) for my application, as I don't think that debug() is sufficient. Additionally log(5, msg) isn't what I want. How can I add a custom loglevel to a Python logger? ...