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Fix honoring :primary_key option when joining or eager loading a belongs_to association

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[#765 state:committed]

Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>
This commit is contained in:
Ernie Miller 2010-03-29 16:38:44 -04:00 committed by Jeremy Kemper
parent a509b0b18f
commit 63026541b2
3 changed files with 15 additions and 2 deletions
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2
activerecord/lib/active_record/association_preload.rb
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@ -324,7 +324,7 @@ module ActiveRecord
klass = klass_name.constantize
table_name = klass.quoted_table_name
primary_key = klass.primary_key
primary_key = reflection.options[:primary_key] || klass.primary_key
column_type = klass.columns.detect{|c| c.name == primary_key}.type
ids = id_map.keys.map do |id|

2
activerecord/lib/active_record/associations.rb
View file

@ -2031,7 +2031,7 @@ module ActiveRecord
[aliased_table[foreign_key].eq(parent_table[reflection.options[:primary_key] || parent.primary_key])]
end
when :belongs_to
[aliased_table[reflection.klass.primary_key].eq(parent_table[options[:foreign_key] || reflection.primary_key_name])]
[aliased_table[options[:primary_key] || reflection.klass.primary_key].eq(parent_table[options[:foreign_key] || reflection.primary_key_name])]
end
unless klass.descends_from_active_record?

13
activerecord/test/cases/associations/belongs_to_associations_test.rb
View file

@ -32,6 +32,12 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase
assert_equal companies(:first_firm).name, client.firm_with_primary_key.name
end
def test_belongs_to_with_primary_key_joins_on_correct_column
sql = Client.joins(:firm_with_primary_key).to_sql
assert_no_match /"firm_with_primary_keys_companies"\."id"/, sql
assert_match /"firm_with_primary_keys_companies"\."name"/, sql
end
def test_proxy_assignment
account = Account.find(1)
assert_nothing_raised { account.firm = account.firm }
@ -61,6 +67,13 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase
assert_equal apple.name, citibank.firm_name
end
def test_eager_loading_with_primary_key
apple = Firm.create("name" => "Apple")
citibank = Client.create("name" => "Citibank", :firm_name => "Apple")
citibank_result = Client.find(:first, :conditions => {:name => "Citibank"}, :include => :firm_with_primary_key)
assert_not_nil citibank_result.instance_variable_get("@firm_with_primary_key")
end
def test_no_unexpected_aliasing
first_firm = companies(:first_firm)
another_firm = companies(:another_firm)