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Rails raw SQL example
...s.rubyonrails.org/active_record_querying.html
and in associations, scopes, etc. You could probably construct the same SQL with ActiveRecord relational queries and can do cool things with ARel as Ernie mentions in http://erniemiller.org/2010/03/28/advanced-activerecord-3-queries-with-arel/. And, of c...
Increasing client_max_body_size in Nginx conf on AWS Elastic Beanstalk
...d a file called 01_files.config with the following contents:
files:
"/etc/nginx/conf.d/proxy.conf" :
mode: "000755"
owner: root
group: root
content: |
client_max_body_size 20M;
This generates a proxy.conf file inside of the /etc/nginx/conf.d director...
Nginx not picking up site in sites-enabled?
...! I am trying to move my localhost to my sites-enabled folder which is in /etc/nginx/sites-enabled/default.
3 Answers
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Linux error while loading shared libraries: cannot open shared object file: No such file or director
...ies found in the directories specified on the command
line, in the file /etc/ld.so.conf, and in the trusted directories
(/lib and /usr/lib).
Usually your package manager will take care of this when you install a new library, but not always, and it won't hurt to run ldconfig even if that is not...
Xcode: What is a target and scheme in plain language?
...ects usually relate to one another
Project - Contains code and resources, etc. (You'll be used to these!)
Target - Each project has one or more targets.
Each target defines a list of build settings for that project
Each target also defines a list of classes, resources, custom scripts etc to incl...
Viewing contents of a .jar file
What would be the easiest way to view classes, methods, properties, etc. inside a jar file?
I'm looking for something equivalent to the very useful Lutz Roeder .NET Reflector - for Java
...
http to https apache redirection
...ite.example.com
DocumentRoot /usr/local/apache2/htdocs
SSLEngine On
# etc...
</VirtualHost>
Then do:
/etc/init.d/httpd restart
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Difference between solr and lucene
...work.
Examples are Solr, Elastic Search, LinkedIn (yes, under the hood), etc..
Check out this article: Lucene vs Solr
UPDATE (6/18/14)
When to use Lucene?
You are a search engineer AND
You are a programmer AND
You want full control over almost all the internals of Lucene AND
Your requirements...
MySQL Database won't start in XAMPP Manager-osx
...mputername>.local.pid)
My Solution:
In /Applications/XAMPP/xamppfiles/etc/my.cnf change user = <uid> s that <uid> is uid from id command.
$ id
uid=...
$ vim /Applications/XAMPP/xamppfiles/etc/my.cnf
...
s...
Why is String immutable in Java?
...ring in network connections, database connection urls, usernames/passwords etc. If it were mutable, these parameters could be easily changed.
Synchronization and concurrency: making String immutable automatically makes them thread safe thereby solving the synchronization issues.
Caching: when compi...