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Android: How can I validate EditText input?

...ern.compile("[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789_]*"); Matcher matcher = pattern.matcher(checkMe); boolean valid = matcher.matches(); if(!valid){ Log.d("", "invalid"); return ""; } } ...
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Cron and virtualenv

...e /path/to/virtualenv/bin/activate && /path/to/build/manage.py some_command > /dev/null It's tricky to spot why this fails as /var/log/syslog doesn't log the error details. Best to alias yourself to root so you get emailed with any cron errors. Simply add yourself to /etc/aliases and ...
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How to tell if a file is git tracked (by shell exit code)?

...er up your console with error messages, you can also run git ls-files file_name and then check the result. If git returns nothing, then the file is not tracked. If it's tracked, git will return the file path. This comes in handy if you want to combine it in a script, for example PowerShell: $gi...
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What’s the difference between ScalaTest and Scala Specs unit test frameworks?

...calaTest, and that I think reflects a difference in design attitude. I actually cut probably 2/3 of the matcher syntax I built and considered for release. I will add more matchers in future releases, but wanted to be sure I knew users actually wanted something before I added it. However ScalaTest's ...
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to_string is not a member of std, says g++ (mingw)

...orking. I copied the exact program from the question. I still get the 'to_string' is not a member of 'std' error. I compiled it as: g++ -std=c++0x -o tostring_test.exe tostring_test.cpp – zam664 Dec 2 '13 at 16:58 ...
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Skip callbacks on Factory Girl and Rspec

...ly achieved this using: FactoryGirl.define do factory :user do first_name "Luiz" last_name "Branco" #... after(:build) { |user| user.class.skip_callback(:create, :after, :run_something) } factory :user_with_run_something do after(:create) { |user| user.send(:run_someth...
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Assign null to a SqlParameter

... for the ?: operator that explains the problem Either the type of first_expression and second_expression must be the same, or an implicit conversion must exist from one type to the other. share | ...
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Assign variables to child template in {% include %} tag Django

... Like @Besnik suggested, it's pretty simple: {% include "subject_file_upload.html" with form=form foo=bar %} The documentation for include mentions this. It also mentions that you can use only to render the template with the given variables only, without inheriting any other variables. ...
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How can I specify a local gem in my Gemfile?

...nly by using the following configuration option: $ bundle config local.GEM_NAME /path/to/local/git/repository This is extremely helpful if you're developing two gems or a gem and a rails app side-by-side. Note though, that this only works when you're already using git for your dependency, for ex...
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YouTube Video Embedded via iframe Ignoring z-index?

...o player" width="480" height="390" src="http://www.youtube.com/embed/lzQgAR_J1PI?wmode=transparent" frameborder="0" wmode="Opaque"> or this //Fix z-index youtube video embedding $(document).ready(function (){ $('iframe').each(function(){ var url = $(this).attr("src"); $(thi...