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Rails: Default sort order for a rails model?
...fault sorting to be done on.
Note: ASC is the code to use for Ascending and DESC is for descending (desc, NOT dsc !).
scope
Once you're used to that you can also use scope:
class Book < ActiveRecord::Base
scope :confirmed, :conditions => { :confirmed => true }
scope :published, ...
How can I select rows with most recent timestamp for each key value?
I have a table of sensor data. Each row has a sensor id, a timestamp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields.
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Undoing a git rebase
...t was immediately before the rebase started in the reflog...
git reflog
and to reset the current branch to it (with the usual caveats about being absolutely sure before reseting with the --hard option).
Suppose the old commit was HEAD@{5} in the ref log:
git reset --hard HEAD@{5}
In Windows, ...
Why does pattern matching in Scala not work with variables?
...sense that the default behaviour is for lowercase patterns to be variables and not stable identifiers. Only when you see something beginning with upper case, or in back ticks, do you need to be aware that it comes from the surrounding scope.
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Mockito. Verify method arguments
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Haha, I did not understand the question, but the answer helped me a lot. Thanks :-)
– Marcus K.
Nov 14 '17 at 12:54
13
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Converting JSON data to Java object
... I can generate Java from this JSON string?
Google Gson supports generics and nested beans. The [] in JSON represents an array and should map to a Java collection such as List or just a plain Java array. The {} in JSON represents an object and should map to a Java Map or just some JavaBean class.
Y...
Having the output of a console application in Visual Studio instead of the console
...stead of having a console popping up like in Visual Studio. This comes in handy, as even after the program has exited, I can still make good use of the text that was written in it, as it doesn't get erased until I run it again. Is it possible to achieve anything like that with Visual Studio? I know ...
How to connect an existing SQL Server login to an existing SQL Server database user of same name
Is there a SQL Server command to connect a user of a single database to a login for the database server of the same name?
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How to change users in TortoiseSVN
...atile method. First, locate it:
On XP, it was located here:
C:\Documents and Settings\%USER%\Application Data\Subversion\auth\svn.simple\
On Vista, it was located here:
C:\Users\%USER%\AppData\Roaming\Subversion\auth\svn.simple\
Then look in those files with Notepad, and delete the one with y...
git update-index --assume-unchanged on directory
...
git update-index wants the file names on its command line, not on its standard input.
Step 1:
cd into the folder you want to assume is unchanged
Step 2:
You can do either this:
git update-index --assume-unchanged $(git ls-files | tr '\n' ' ')
or
git ls-files | tr '...