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@masak2009
Created January 7, 2010 22:14
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Mac OS X
I když si na Mac OS X můžete též hezky zakompilovat, existuje tu snazší způsob, jak si na něm pohrát s CouchDB – pomocí CouchDBX. Sice se jedná o neoficiální aplikaci, ale instalace je velice pohodlná – stáhněte, dvojklikněte a máte běžící CouchDB.
Další možností je využít MacPorts:
$ sudo port selfupdate
$ sudo port install couchdb
$ sudo launchctl load -w /opt/local/Library/LaunchDaemons/org.apache.couchdb.plist
Poslední příkaz spustí CouchDB a přidá ji do seznamu démonů spouštěných po startu.
Vyzkoušení jestli CouchDB funguje:
http://localhost:5984/
Jelikož budeme chtít odesílat i jiné požadavky, než jen GET, bude potřeba nějaký nástroj, ve kterém se to bude moci nastavit.
Nastroj pro Firefox: https://addons.mozilla.org/cs/firefox/addon/9780
CouchDB také nabídne hezké Ajaxové administrační rozhraní zvané Futon. Dostanete se k němu ze svého oblíbeného prohlížeče napsáním http://localhost:5984/_utils/ do adresního řádku.
zdroj:
http://zdrojak.root.cz/clanky/couchdb-tak-trochu-jina-databaze-1-cast/
Ruby on Rails dancing with CouchDB
$ gem install json
After that, create the Rails application
$ rails heroes
Than install the ActiveCouch plugin
$ cd heroes
$ ./script/plugin install git://github.com/arunthampi/activecouch.git
Configure the Rails Application
Create a file called activecouch.yml in your application's /config directory which looks something like this, depending on your installation and CouchDB server configuration:
development:
site: http://localhost:5984/
test:
site: http://localhost:5984/
production:
site: http://localhost:5984/
Creating the Database using ActiveCouch
ActiveCouch supplies a list of rake tasks to manage CouchDB databases.
You can also create CouchDB databases and documents using the web interface on the server.
To view all of ActiveCouch's rake tasks enter:
$ rake --tasks | grep CouchDB
rake activecouch:create_db # Creates a database in CouchDB
rake activecouch:delete_db # Deletes a database from CouchDB
rake activecouch:delete_view # Deletes a view in CouchDB
rake activecouch:save_view # Saves a view in CouchDB
We will create a database named heros for our sample application:
POZOR NEUMI REGULERNI MNOZNE CISLO POUZE PRIDAVA "S" NA KONEC!
$ rake activecouch:create_db db=heros
Creating an ActiveCouch Model
The ActiveCouch plugin comes with its own model generator. To use it, simply enter in the command line of your Rails application's root path:
$ script/generate activecouch_model hero
which will generate a hero.rb file in your app/models directory just like a regular model. The ActiveCouch model will look something like this:
class Hero < ActiveCouch::Base
site YAML::load(File.open(File.join(Rails.root,
'config', 'activecouch.yml')))[Rails.env]['site']
end
Now, we will add some fields to that model. Unlike the traditional Rails way of manipulating database structure, we will not use migrations. Instead, specify the fields on the model in a way similar to Ruby's attr_accessor method.
class Hero < ActiveCouch::Base
site YAML::load(File.open(File.join(Rails.root,
'config', 'activecouch.yml')))[Rails.env]['site']
has :hero_name
has :real_name
has :hands
has :super_powers
end
zdroj:
http://zdrojak.root.cz/clanky/couchdb-tak-trochu-jina-databaze-1-cast/
http://wiki.rubyonrails.org/database-support/couchdb
http://aimee.mychores.co.uk/2008/09/09/post/325
http://wiki.apache.org/couchdb/Installing_on_FreeBSD
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