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Ruby on Rails - Import Data from a CSV file
...
require 'csv'
csv_text = File.read('...')
csv = CSV.parse(csv_text, :headers => true)
csv.each do |row|
Moulding.create!(row.to_hash)
end
share
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imp...
How to change an Android app's name?
... field in your application node in AndroidManifest.xml.
Note: If you have added a Splash Screen and added
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter&...
How can I calculate the number of lines changed between two commits in git?
...--stat <commit-ish> <commit-ish>
--stat produces the human-readable output you're used to seeing after merges; --numstat produces a nice table layout that scripts can easily interpret.
I somehow missed that you were looking to do this on multiple commits at the same time - that's a ta...
How to find the operating system version using JavaScript?
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stckvrw
1,25499 silver badges2929 bronze badges
answered Mar 1 '12 at 10:25
kaissunkaissun
2,54211 gol...
Eclipse JPA Project Change Event Handler (waiting)
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I had the same problem and I ended up finding out that this seems to be a known bug in DALI (Eclipse Java Persistence Tools) since at least eclipse 3.8 which could cause the save action in the java editor to be extremly slow.
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spring boot default H2 jdbc connection (and H2 console)
...stration = new ServletRegistrationBean(new WebServlet());
registration.addUrlMappings("/console/*");
return registration;
}
Then you can access the H2 console at {server}/console/. Enter this as the JDBC URL: jdbc:h2:mem:AZ
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Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
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This happened to me as well, and the answers given here already were not satisfying, so I did my own research.
Background: Eclipse access restrictions
Eclipse has a mechanism called access restrictions to prevent you from accidentally using classes which Eclipse thinks are not part ...
How do I clear my local working directory in Git? [duplicate]
...be removed.
Relevant links:
git-reset man page
git-clean man page
git ready "cleaning up untracked files" (as Marko posted)
Stack Overflow question "How to remove local (untracked) files from the current Git working tree")
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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
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informatik01
14.7k88 gold badges6666 silver badges100100 bronze badges
answered Jun 14 '11 at 15:37
Alex AzaAlex Aza
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Can't compare naive and aware datetime.now()
...ou can compare them
Note: This would raise a ValueError if tzinfo is already set. If you are not sure about that, just use
start_time = challenge.datetime_start.replace(tzinfo=utc)
end_time = challenge.datetime_end.replace(tzinfo=utc)
BTW, you could format a UNIX timestamp in datetime.datetime ...