diff options
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb | 6 | ||||
| -rw-r--r-- | activerecord/lib/active_record/fixtures.rb | 22 | ||||
| -rw-r--r-- | activesupport/CHANGELOG.md | 4 | ||||
| -rw-r--r-- | activesupport/lib/active_support/core_ext/hash.rb | 1 | ||||
| -rw-r--r-- | activesupport/lib/active_support/core_ext/hash/compact.rb | 20 | ||||
| -rw-r--r-- | activesupport/test/core_ext/hash_ext_test.rb | 28 | ||||
| -rw-r--r-- | guides/source/active_support_core_extensions.md | 10 |
7 files changed, 74 insertions, 17 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index e196df079b..c90915c509 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -286,10 +286,6 @@ module ActiveRecord # Inserts the given fixture into the table. Overridden in adapters that require # something beyond a simple insert (eg. Oracle). def insert_fixture(fixture, table_name) - execute fixture_sql(fixture, table_name), 'Fixture Insert' - end - - def fixture_sql(fixture, table_name) columns = schema_cache.columns_hash(table_name) key_list = [] @@ -298,7 +294,7 @@ module ActiveRecord quote(value, columns[name]) end - "INSERT INTO #{quote_table_name(table_name)} (#{key_list.join(', ')}) VALUES (#{value_list.join(', ')})" + execute "INSERT INTO #{quote_table_name(table_name)} (#{key_list.join(', ')}) VALUES (#{value_list.join(', ')})", 'Fixture Insert' end def empty_insert_statement_value diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index a7a54483bc..fee3f51d9e 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -521,8 +521,16 @@ module ActiveRecord connection.transaction(:requires_new => true) do fixture_sets.each do |fs| conn = fs.model_class.respond_to?(:connection) ? fs.model_class.connection : connection - fs.fixture_sql(conn).each do |stmt| - conn.execute stmt + table_rows = fs.table_rows + + table_rows.keys.each do |table| + conn.delete "DELETE FROM #{conn.quote_table_name(table)}", 'Fixture Delete' + end + + table_rows.each do |fixture_set_name, rows| + rows.each do |row| + conn.insert_fixture(row, fixture_set_name) + end end end @@ -594,16 +602,6 @@ module ActiveRecord fixtures.size end - def fixture_sql(conn) - table_rows = self.table_rows - - table_rows.keys.map { |table| - "DELETE FROM #{conn.quote_table_name(table)}" - }.concat table_rows.flat_map { |fixture_set_name, rows| - rows.map { |row| conn.fixture_sql(row, fixture_set_name) } - } - end - # Returns a hash of rows to be inserted. The key is the table, the value is # a list of rows to insert to that table. def table_rows diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index 2cb1e79365..adaeb99c87 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,7 @@ +* Added `Hash#compact` and `Hash#compact!` for removing items with nil value from hash. + + *Celestino Gomes* + * Maintain proleptic gregorian in Time#advance `Time#advance` uses `Time#to_date` and `Date#advance` to calculate a new date. diff --git a/activesupport/lib/active_support/core_ext/hash.rb b/activesupport/lib/active_support/core_ext/hash.rb index 686f12c6da..f68e1662f9 100644 --- a/activesupport/lib/active_support/core_ext/hash.rb +++ b/activesupport/lib/active_support/core_ext/hash.rb @@ -1,3 +1,4 @@ +require 'active_support/core_ext/hash/compact' require 'active_support/core_ext/hash/conversions' require 'active_support/core_ext/hash/deep_merge' require 'active_support/core_ext/hash/except' diff --git a/activesupport/lib/active_support/core_ext/hash/compact.rb b/activesupport/lib/active_support/core_ext/hash/compact.rb new file mode 100644 index 0000000000..6566215a4d --- /dev/null +++ b/activesupport/lib/active_support/core_ext/hash/compact.rb @@ -0,0 +1,20 @@ +class Hash + # Returns a hash with non +nil+ values. + # + # hash = { a: true, b: false, c: nil} + # hash.compact # => { a: true, b: false} + # hash # => { a: true, b: false, c: nil} + # { c: nil }.compact # => {} + def compact + self.select { |_, value| !value.nil? } + end + + # Replaces current hash with non +nil+ values. + # + # hash = { a: true, b: false, c: nil} + # hash.compact! # => { a: true, b: false} + # hash # => { a: true, b: false} + def compact! + self.reject! { |_, value| value.nil? } + end +end diff --git a/activesupport/test/core_ext/hash_ext_test.rb b/activesupport/test/core_ext/hash_ext_test.rb index 1ee9fbf46e..40c8f03374 100644 --- a/activesupport/test/core_ext/hash_ext_test.rb +++ b/activesupport/test/core_ext/hash_ext_test.rb @@ -54,6 +54,8 @@ class HashExtTest < ActiveSupport::TestCase assert_respond_to h, :deep_stringify_keys! assert_respond_to h, :to_options assert_respond_to h, :to_options! + assert_respond_to h, :compact + assert_respond_to h, :compact! end def test_transform_keys @@ -865,6 +867,32 @@ class HashExtTest < ActiveSupport::TestCase original.expects(:delete).never original.except(:a) end + + def test_compact + hash_contain_nil_value = @symbols.merge(z: nil) + hash_with_only_nil_values = { a: nil, b: nil } + + h = hash_contain_nil_value.dup + assert_equal(@symbols, h.compact) + assert_equal(hash_contain_nil_value, h) + + h = hash_with_only_nil_values.dup + assert_equal({}, h.compact) + assert_equal(hash_with_only_nil_values, h) + end + + def test_compact! + hash_contain_nil_value = @symbols.merge(z: nil) + hash_with_only_nil_values = { a: nil, b: nil } + + h = hash_contain_nil_value.dup + assert_equal(@symbols, h.compact!) + assert_equal(@symbols, h) + + h = hash_with_only_nil_values.dup + assert_equal({}, h.compact!) + assert_equal({}, h) + end end class IWriteMyOwnXML diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index 1a43bd206e..59dfefd22f 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -2907,6 +2907,16 @@ The method `with_indifferent_access` returns an `ActiveSupport::HashWithIndiffer NOTE: Defined in `active_support/core_ext/hash/indifferent_access.rb`. +### Compacting + +The methods `compact` and `compact!` return a Hash without items with `nil` value. + +```ruby +{a: 1, b: 2, c: nil}.compact # => {a: 1, b: 2} +``` + +NOTE: Defined in `active_support/core_ext/hash/compact.rb`. + Extensions to `Regexp` ---------------------- |