Skip to content
Fetching contributors…
Cannot retrieve contributors at this time
51 lines (41 sloc) 1.8 KB
PostgresArrays
==============
This library adds ability to use PostgreSQL array types with ActiveRecord.
> User.find(:all, :conditions=>['arr @> ?', [1,2,3].pg])
SELECT * FROM "users" WHERE ('arr' @> E'{"1", "2", "3"}')
> User.find(:all, :conditions=>['arr @> ?', [1,2,3].pg(:integer)])
SELECT * FROM "users" WHERE (arr @> '{1,2,3}')
> User.find(:all, :conditions=>['arr @> ?', [1,2,3].pg(:float)])
SELECT * FROM "users" WHERE (arr @> '{1.0,2.0,3.0}')
> u = User.find(1)
SELECT * FROM "users" WHERE ("users"."id" = 1)
=> #<User id: 1, ..., arr: [1,2]>
> u.arr = [3,4]
> u.save
UPDATE "users" SET "db_ar" = '{3.0,4.0}' WHERE "id" = 19
> User.find(:all, :conditions=>{:arr=>[3,4].pg})
SELECT * FROM "users" WHERE ("users"."arr" = E'{"3", "4"}')
> User.find(:all, :conditions=>{:arr=>[3,4].search_any(:float)})
SELECT * FROM "users" WHERE ("users"."arr" && '{3.0,4.0}')
> User.find(:all, :conditions=>{:arr=>[3,4].search_all(:integer)})
SELECT * FROM "users" WHERE ("users"."arr" @> '{3,4}')
> User.find(:all, :conditions=>{:arr=>[3,4].search_subarray(:safe)})
SELECT * FROM "users" WHERE ("users"."arr" <@ '{3,4}')
class U < ActiveRecord::Migration
def self.up
create_table :users do |t|
t.integer_array :int_ar
end
add_column :users, :fl_ar, :float_array
end
end
Installation
============
gem install ar_pg_array
Changelog
=========
0.9.13
Since version 0.9.13 ar_pg_array will try to detect arrays changed inplace.
And parsed arrays are now cached in @attributes_cache.
Thanks to Romain Beauxis (https://github.com/toots ) for being insistent about this.
Copyright (c) 2010 Sokolov Yura aka funny_falcon, released under the MIT license
Something went wrong with that request. Please try again.