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Only use BINARY for mysql case sensitive uniqueness check when column…

… has a case insensitive collation.
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1 parent a6900a2 commit 501ae92a32285528c8bbdcf2af422eadb6a63c0e @kamipo kamipo committed Nov 25, 2013
@@ -1,3 +1,7 @@
+* Only use BINARY for mysql case sensitive uniqueness check when column has a case insensitive collation.
+
+ *Ryuta Kamizono*
+
* Fix validation on uniqueness of empty association.
*Evgeny Li*
@@ -334,6 +334,11 @@ def case_sensitive_modifier(node)
node
end
+ def case_sensitive_comparison(table, attribute, column, value)
+ value = case_sensitive_modifier(value) unless value.nil?
+ table[attribute].eq(value)
+ end
+
def case_insensitive_comparison(table, attribute, column, value)
table[attribute].lower.eq(table.lower(value))
end
@@ -585,6 +585,14 @@ def case_sensitive_modifier(node)
Arel::Nodes::Bin.new(node)
end
+ def case_sensitive_comparison(table, attribute, column, value)
+ if column.case_sensitive?
+ table[attribute].eq(value)
+ else
+ super
+ end
+ end
+
def case_insensitive_comparison(table, attribute, column, value)
if column.case_sensitive?
super
@@ -59,8 +59,7 @@ def build_relation(klass, table, attribute, value) #:nodoc:
# will use SQL LOWER function before comparison, unless it detects a case insensitive collation
klass.connection.case_insensitive_comparison(table, attribute, column, value)
else
- value = klass.connection.case_sensitive_modifier(value) unless value.nil?
- table[attribute].eq(value)
+ klass.connection.case_sensitive_comparison(table, attribute, column, value)
end
end
@@ -3,10 +3,10 @@
class MysqlCaseSensitivityTest < ActiveRecord::TestCase
class CollationTest < ActiveRecord::Base
- validates_uniqueness_of :string_cs_column, :case_sensitive => false
- validates_uniqueness_of :string_ci_column, :case_sensitive => false
end
+ repair_validations(CollationTest)
+
def test_columns_include_collation_different_from_table
assert_equal 'utf8_bin', CollationTest.columns_hash['string_cs_column'].collation
assert_equal 'utf8_general_ci', CollationTest.columns_hash['string_ci_column'].collation
@@ -18,6 +18,7 @@ def test_case_sensitive
end
def test_case_insensitive_comparison_for_ci_column
+ CollationTest.validates_uniqueness_of(:string_ci_column, :case_sensitive => false)
CollationTest.create!(:string_ci_column => 'A')
invalid = CollationTest.new(:string_ci_column => 'a')
queries = assert_sql { invalid.save }
@@ -26,10 +27,29 @@ def test_case_insensitive_comparison_for_ci_column
end
def test_case_insensitive_comparison_for_cs_column
+ CollationTest.validates_uniqueness_of(:string_cs_column, :case_sensitive => false)
CollationTest.create!(:string_cs_column => 'A')
invalid = CollationTest.new(:string_cs_column => 'a')
queries = assert_sql { invalid.save }
cs_uniqueness_query = queries.detect { |q| q.match(/string_cs_column/) }
assert_match(/lower/i, cs_uniqueness_query)
end
+
+ def test_case_sensitive_comparison_for_ci_column
+ CollationTest.validates_uniqueness_of(:string_ci_column, :case_sensitive => true)
+ CollationTest.create!(:string_ci_column => 'A')
+ invalid = CollationTest.new(:string_ci_column => 'A')
+ queries = assert_sql { invalid.save }
+ ci_uniqueness_query = queries.detect { |q| q.match(/string_ci_column/) }
+ assert_match(/binary/i, ci_uniqueness_query)
+ end
+
+ def test_case_sensitive_comparison_for_cs_column
+ CollationTest.validates_uniqueness_of(:string_cs_column, :case_sensitive => true)
+ CollationTest.create!(:string_cs_column => 'A')
+ invalid = CollationTest.new(:string_cs_column => 'A')
+ queries = assert_sql { invalid.save }
+ cs_uniqueness_query = queries.detect { |q| q.match(/string_cs_column/) }
+ assert_no_match(/binary/i, cs_uniqueness_query)
+ end
end
@@ -3,10 +3,10 @@
class Mysql2CaseSensitivityTest < ActiveRecord::TestCase
class CollationTest < ActiveRecord::Base
- validates_uniqueness_of :string_cs_column, :case_sensitive => false
- validates_uniqueness_of :string_ci_column, :case_sensitive => false
end
+ repair_validations(CollationTest)
+
def test_columns_include_collation_different_from_table
assert_equal 'utf8_bin', CollationTest.columns_hash['string_cs_column'].collation
assert_equal 'utf8_general_ci', CollationTest.columns_hash['string_ci_column'].collation
@@ -18,6 +18,7 @@ def test_case_sensitive
end
def test_case_insensitive_comparison_for_ci_column
+ CollationTest.validates_uniqueness_of(:string_ci_column, :case_sensitive => false)
CollationTest.create!(:string_ci_column => 'A')
invalid = CollationTest.new(:string_ci_column => 'a')
queries = assert_sql { invalid.save }
@@ -26,10 +27,29 @@ def test_case_insensitive_comparison_for_ci_column
end
def test_case_insensitive_comparison_for_cs_column
+ CollationTest.validates_uniqueness_of(:string_cs_column, :case_sensitive => false)
CollationTest.create!(:string_cs_column => 'A')
invalid = CollationTest.new(:string_cs_column => 'a')
queries = assert_sql { invalid.save }
cs_uniqueness_query = queries.detect { |q| q.match(/string_cs_column/)}
assert_match(/lower/i, cs_uniqueness_query)
end
+
+ def test_case_sensitive_comparison_for_ci_column
+ CollationTest.validates_uniqueness_of(:string_ci_column, :case_sensitive => true)
+ CollationTest.create!(:string_ci_column => 'A')
+ invalid = CollationTest.new(:string_ci_column => 'A')
+ queries = assert_sql { invalid.save }
+ ci_uniqueness_query = queries.detect { |q| q.match(/string_ci_column/) }
+ assert_match(/binary/i, ci_uniqueness_query)
+ end
+
+ def test_case_sensitive_comparison_for_cs_column
+ CollationTest.validates_uniqueness_of(:string_cs_column, :case_sensitive => true)
+ CollationTest.create!(:string_cs_column => 'A')
+ invalid = CollationTest.new(:string_cs_column => 'A')
+ queries = assert_sql { invalid.save }
+ cs_uniqueness_query = queries.detect { |q| q.match(/string_cs_column/) }
+ assert_no_match(/binary/i, cs_uniqueness_query)
+ end
end

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