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Devise - How do I forbid certain users from signing in?

...d self.is_active? end end UPDATE As Matt Huggins notes, the method is now called active_for_authentication? (Documentation) share | improve this answer | follow ...
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Gradle store on local file system

...sk showMeCache << { configurations.compile.each { println it } } Now if you run gradle showMeCache it should download the deps into cache and print the full path. share | improve this answ...
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Why are Where and Select outperforming just Select?

...); int result2 = myCollection.Sum(mc => mc.IsValid ? mc.Value : 0); Now here's the kicker: LINQ uses deferred execution. Thus, while it may appear that result1 iterates over the collection twice, it actually only iterates over it once. The Where() condition is actually applied during the S...
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How to convert timestamps to dates in Bash?

... @Bruno, how do you know date is faster than gawk.? – ghostdog74 Mar 3 '10 at 14:23 3 ...
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Setting environment variables on OS X

...en for apps launched via spotlight. So the selected answer is correct for Snow Leopard ;-) – Louis Jacomet Jun 9 '10 at 14:54 5 ...
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Fastest way to get the first object from a queryset in django?

...'m pretty sure you'll even see this add LIMIT 1 to the query, and I don't know that you can do any better than this. However, internally __nonzero__ in QuerySet is implemented as try: iter(self).next() except StopIteration: return false... so it doesn't escape the exception. –...
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How to make rounded percentages add up to 100%

... @VarunVohra sorry i didn't notice this until now, yes it looks like your algorithm is the same :) not sure why my post is the accepted answer, the obfuscated code was just for the lolz... – yonilevy Mar 31 '14 at 10:40 ...
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Why is “throws Exception” necessary when calling a function?

... In Java, as you may know, exceptions can be categorized into two: One that needs the throws clause or must be handled if you don't specify one and another one that doesn't. Now, see the following figure: In Java, you can throw anything that ex...
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Razor-based view doesn't see referenced assemblies

...ssemblies section of the root web.config file fixed the issue. The section now looks like: <system.web> <compilation debug="true" targetFramework="4.0"> <assemblies> <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3...
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How to drop a list of rows from Pandas dataframe?

...e the same strings for rows and columns. That's fine for those who really know their stuff already. Frustrating for those trying to learn. – gseattle Mar 19 '17 at 7:40 4 ...