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Add documentation for qualifying table names in conditions hashes

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This commit is contained in:
Joel Chippindale 2009-06-18 06:13:39 +01:00
parent d2dfd340e3
commit f9c6dcbf7c
1 changed files with 6 additions and 0 deletions
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6
activerecord/lib/active_record/base.rb
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@ -236,6 +236,12 @@ module ActiveRecord #:nodoc:
# #
# Student.find(:all, :conditions => { :grade => [9,11,12] }) # Student.find(:all, :conditions => { :grade => [9,11,12] })
# #
# When joining tables, nested hashes or keys written in the form 'table_name.column_name' can be used to qualify the table name of a
# particular condition. For instance:
#
# Student.find(:all, :conditions => { :schools => { :type => 'public' }}, :joins => :schools)
# Student.find(:all, :conditions => { 'schools.type' => 'public' }, :joins => :schools)
#
# == Overwriting default accessors # == Overwriting default accessors
# #
# All column values are automatically available through basic accessors on the Active Record object, but sometimes you # All column values are automatically available through basic accessors on the Active Record object, but sometimes you