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Can't use NVM from root (or sudo)
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Great, this is by far the best solution. This way , root will always use the same npm / node version you are using on the nvm user, thanks!
– luiscvalmeida
Jul 27 '17 at 15:13
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Ruby on Rails: how do I sort with two columns using ActiveRecord?
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Assuming you're using MySQL,
Model.all(:order => 'DATE(updated_at), price')
Note the distinction from the other answers. The updated_at column will be a full timestamp, so if you want to sort based on the day it was updated, you need to use ...
Avoid passing null as the view root (need to resolve layout parameters on the inflated layout's root
Passing null for root studio gives me this warning:
7 Answers
7
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Remove unnecessary svn:mergeinfo properties
...another way to delete all sub tree svn:mergeinfo properties but not at the root folder (this is needed for branching to work properly).
From the root of the project do:
svn propdel svn:mergeinfo -R
svn revert .
svn ci -m "Removed mergeinfo"
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Best way to create custom config options for my Rails app?
...er in config/initializers:
# Rails 2
APP_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/config.yml")[RAILS_ENV]
# Rails 3+
APP_CONFIG = YAML.load_file(Rails.root.join('config/config.yml'))[Rails.env]
If you're using Rails 3, ensure you don't accidentally add a leading slash to your relative confi...
Should I use != or for not equal in T-SQL?
...ages) and <> (ANSI).
Databases that support both != and <>:
MySQL 5.1: != and <>
PostgreSQL 8.3: != and <>
SQLite: != and <>
Oracle 10g: != and <>
Microsoft SQL Server 2000/2005/2008/2012/2016: != and <>
IBM Informix Dynamic Server 10: != and <>
Int...
insert a NOT NULL column to an existing table
...crosoft SQL server. If you want to perform the same operation on Oracle or MySQL you need to use semicolon ; like that:
ALTER TABLE MY_TABLE ADD STAGE INT NULL;
UPDATE MY_TABLE SET <a valid not null values for your column>;
ALTER TABLE MY_TABLE ALTER COLUMN STAGE INT NOT NULL;
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Fastest way to determine if an integer's square root is an integer
...st way to determine if a long value is a perfect square (i.e. its square root is another integer):
35 Answers
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How to list running screen sessions?
...ntle ~ # ls -laR /var/run/screen/
/var/run/screen/:
total 1
drwxrwxr-x 4 root utmp 96 Mar 1 2005 .
drwxr-xr-x 10 root root 840 Feb 1 03:10 ..
drwx------ 2 josh users 88 Jan 13 11:33 S-josh
drwx------ 2 root root 48 Feb 11 10:50 S-root
/var/run/screen/S-josh:
total 0
drwx------ 2 josh u...
is there a css hack for safari only NOT chrome?
...13 (early-2020):
/* Safari 7.1+ */
_::-webkit-full-page-media, _:future, :root .safari_only {
color:#0000FF;
background-color:#CCCCCC;
}
To cover more versions, 6.1 and up, at this time you have to use the next pair of css hacks. The one for 6.1-10.0 to go with one that handles 10.1 and up...