http://mxcl.github.com/homebrew/

Source:

http://beginrescueend.com/integration/cron/

`require’: dlopen(/Users/mike/myapp/ruby/1.9.2/gems/mysql2-0.3.6/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)
This simply solved my problem:

$ export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH

Source: http://rorguide.blogspot.com/2011/07/getting-error-library-not-loaded.html

As ever, first download and unzip Redis from here.

cd /tmp
wget http://redis.googlecode.com/files/redis-2.2.4.tar.gz
tar -zxf redis-2.2.4.tar.gz
cd redis-2.2.4
make
sudo make install

Your Redis binaries should now be located in /usr/local/bin.

To get an init script and Redis config working cleanly with this setup, download my init and config files from my Github ‘dotfiles’ repo. My init script is pretty standard. However my redis.conf sets Redis up with 1Gb of virtual memory and 20Gb of swap space – intended for general development purposes.

wget https://github.com/ijonas/dotfiles/raw/master/etc/init.d/redis-server
wget https://github.com/ijonas/dotfiles/raw/master/etc/redis.conf
sudo mv redis-server /etc/init.d/redis-server
sudo chmod +x /etc/init.d/redis-server
sudo mv redis.conf /etc/redis.conf

Before you can fire up the Redis server for the first time, you’ll need add a redis user and prep a data and logging folder.

sudo useradd redis
sudo mkdir -p /var/lib/redis
sudo mkdir -p /var/log/redis
sudo chown redis.redis /var/lib/redis
sudo chown redis.redis /var/log/redis

Also, you need to activate your Redis services init script by adding it to your system’s run-level configuration. That way the service will startup during the boot sequence and stop nicely during the OS’ shutdown procedure.

sudo update-rc.d redis-server defaults

You’re now ready to launch Redis server with

sudo /etc/init.d/redis-server start

Good luck!

Source: http://www.denofubiquity.com/nosql/412/

<%= link_to “Delete”,  location, ;confirm => “Are you sure?” %>

Solution:

1) Grab the jQuery driver at http://github.com/rails/jquery-ujs and put it in your javascripts directory. The file is at src/rails.js

2) Put these codes to your layout file:

= javascript_include_tag “http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js”
= javascript_include_tag ‘rails’

3) to authenticate ajax request from CSRF attack add this to your header :

<%= csrf_meta_tag %>

More information at: http://joshhuckabee.com/jquery-rails-3

Enjoy!

function CSRFProtection(xhr) {

function CSRFProtection(xhr) {   var token = $(‘meta[name="csrf-token"]‘).attr(‘content’);    if (token) xhr.setRequestHeader(‘X-CSRF-Token’, token);}if (‘ajaxPrefilter’ in $) $.ajaxPrefilter(function(options, originalOptions, xhr) { CSRFProtection(xhr); });else $(document).ajaxSend(function(e, xhr) { CSRFProtection(xhr); });

Hope this helps

Installing mysql2 (0.2.13) with native extensions /home/mike/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:552:in `rescue in block in build_extensions’: ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

/home/mike/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb
checking for rb_thread_blocking_region()… yes
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lm… yes
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lz… yes
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lsocket… no
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lnsl… yes
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lmygcc… no
checking for mysql_query() in -lmysqlclient… no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Solution:

sudo apt-get install libmysqlclient15-dev

Then bundle install again and it should work.!