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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 ...
How to get english language word database? [closed]
... stuff. Looks like WordNet will be very much useful to you.
Here it is in MySQL format. And this one (web-archived link) uses Wordnet v3.0 data, rather than the older Wordnet 2.0 data.
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1052: Column 'id' in field list is ambiguous
...ection
FROM tbl_names
NATURAL JOIN tbl_section
See also: https://dev.mysql.com/doc/refman/5.7/en/join.html
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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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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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Javascript objects: get parent [duplicate]
...t the same problem.
I have a structure like this:
var structure = {
"root":{
"name":"Main Level",
nodes:{
"node1":{
"name":"Node 1"
},
"node2":{
"name":"Node 2"
},
"node3":{
...
How to avoid “Permission denied” when using pip with virtualenv
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Solution:
If you created the virtualenv as root, run the following command:
sudo chown -R your_username:your_username path/to/virtuaelenv/
This will probably fix your problem.
Cheers
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How do I change the root directory of an apache server? [closed]
Does anyone know how to change the document root of the Apache server? I basically want localhost to come from /users/spencer/projects directory instead of /var/www .
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Configure Log4net to write to multiple files
...sage%newline" />
</layout>
</appender>
<root>
<level value="DEBUG" />
<appender-ref ref="File1Appender" />
<appender-ref ref="File2Appender" />
</root>
</log4net>
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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...