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Convert to/from DateTime and Time in Ruby

... You'll need two slightly different conversions. To convert from Time to DateTime you can amend the Time class as follows: require 'date' class Time def to_datetime # Convert seconds + microseconds into a fractional number of seconds seconds = sec + Rational(usec, 10**6)...
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How do I detect if I am in release or debug mode?

...bug build } There have been reports that this value is not 100% reliable from Eclipse-based builds, though I personally have not encountered a problem, so I cannot say how much of an issue it really is. If you are using Android Studio, or if you are using Gradle from the command line, you can add...
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Ruby on Rails - Import Data from a CSV file

I would like to import data from a CSV file into an existing database table. I do not want to save the CSV file, just take the data from it and put it into the existing table. I am using Ruby 1.9.2 and Rails 3. ...
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What is the difference between concurrent programming and parallel programming?

...llel execution and parallel programming are not the same thing. The answer from Jon Harrop is correct. But it seems that the question itself confuses parallel execution and parallel programming. – Blaisorblade Aug 20 '11 at 21:52 ...
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Creating default object from empty value in PHP?

...$res = NULL; $res->success = false; // Warning: Creating default object from empty value PHP will report a different error message if $res is already initialized to some value but is not an object: $res = 33; $res->success = false; // Warning: Attempt to assign property of non-object In o...
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Lost my schema.rb! Can it be regenerated?

...them is db:schema:dump which will recreate the schema.rb for the Rails app from the database. bundle exec rake db:schema:dump share | improve this answer | follow ...
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How do you use version control with Access development?

...t file> <path> ' Converts all modules, classes, forms and macros from an Access Project file (.adp) <input file> to ' text and saves the results in separate files to <path>. Requires Microsoft Access. ' Option Explicit const acForm = 2 const acModule = 5 const acMacro = 4 co...
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How to remove a single, specific object from a ConcurrentBag?

...rrentBag<T> in .NET 4, how do you remove a certain, specific object from it when only TryTake() and TryPeek() are available? ...
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Getting “NoSuchMethodError: org.hamcrest.Matcher.describeMismatch” when running test in IntelliJ 10.

...dy using the '-dep-' jar. But your guess that it's using the Matcher class from the JUnit jar sounds right. So it's probably that the IDE is using its own copy of JUnit. – MatrixFrog Oct 24 '11 at 20:40 ...
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Using cURL with a username and password?

... Note that if you do this from the console the password will remain in the history which is ... wrong. You should specify just -u user and CURL will ask you for the password in no-echo mode. – Cristian Vrabie Apr...