diff options
3 files changed, 32 insertions, 37 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb index bc8fa9b6cf..f754df93b6 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -18,6 +18,9 @@ module ActiveRecord "ADD #{accept(o)}" end + delegate :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql, to: :@conn + private :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql + private def visit_AlterTable(o) @@ -70,18 +73,6 @@ module ActiveRecord column_options end - def quote_column_name(name) - @conn.quote_column_name name - end - - def quote_table_name(name) - @conn.quote_table_name name - end - - def type_to_sql(type, limit, precision, scale) - @conn.type_to_sql type.to_sym, limit, precision, scale - end - def add_column_options!(sql, options) sql << " DEFAULT #{quote_default_expression(options[:default], options[:column])}" if options_include_default?(options) # must explicitly check for :null to allow change_column to work on migrations @@ -97,10 +88,6 @@ module ActiveRecord sql end - def quote_default_expression(value, column) - @conn.quote_default_expression(value, column) - end - def options_include_default?(options) options.include?(:default) && !(options[:null] == false && options[:default].nil?) end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index 81fde18f64..76f568ac03 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -5,8 +5,7 @@ module ActiveRecord private def visit_ColumnDefinition(o) - o.sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale) - o.sql_type << '[]' if o.array + o.sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale, o.array) super end end @@ -407,12 +406,14 @@ module ActiveRecord def change_column(table_name, column_name, type, options = {}) clear_cache! quoted_table_name = quote_table_name(table_name) - sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale]) - sql_type << "[]" if options[:array] - sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{sql_type}" - sql << " USING #{options[:using]}" if options[:using] - if options[:cast_as] - sql << " USING CAST(#{quote_column_name(column_name)} AS #{type_to_sql(options[:cast_as], options[:limit], options[:precision], options[:scale])})" + quoted_column_name = quote_column_name(column_name) + sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale], options[:array]) + sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}" + if options[:using] + sql << " USING #{options[:using]}" + elsif options[:cast_as] + cast_as_type = type_to_sql(options[:cast_as], options[:limit], options[:precision], options[:scale], options[:array]) + sql << " USING CAST(#{quoted_column_name} AS #{cast_as_type})" end execute sql @@ -509,8 +510,8 @@ module ActiveRecord end # Maps logical Rails types to PostgreSQL-specific data types. - def type_to_sql(type, limit = nil, precision = nil, scale = nil) - case type.to_s + def type_to_sql(type, limit = nil, precision = nil, scale = nil, array = nil) + sql = case type.to_s when 'binary' # PostgreSQL doesn't support limits on binary (bytea) columns. # The hard limit is 1Gb, because of a 32-bit size field, and TOAST. @@ -526,24 +527,24 @@ module ActiveRecord else raise(ActiveRecordError, "The limit on text can be at most 1GB - 1byte.") end when 'integer' - return 'integer' unless limit - case limit - when 1, 2; 'smallint' - when 3, 4; 'integer' - when 5..8; 'bigint' - else raise(ActiveRecordError, "No integer type has byte size #{limit}. Use a numeric with precision 0 instead.") + when 1, 2; 'smallint' + when nil, 3, 4; 'integer' + when 5..8; 'bigint' + else raise(ActiveRecordError, "No integer type has byte size #{limit}. Use a numeric with precision 0 instead.") end when 'datetime' - return super unless precision - case precision - when 0..6; "timestamp(#{precision})" - else raise(ActiveRecordError, "No timestamp type has precision of #{precision}. The allowed range of precision is from 0 to 6") + when nil; super(type, limit, precision, scale) + when 0..6; "timestamp(#{precision})" + else raise(ActiveRecordError, "No timestamp type has precision of #{precision}. The allowed range of precision is from 0 to 6") end else - super + super(type, limit, precision, scale) end + + sql << '[]' if array && type != :primary_key + sql end # PostgreSQL requires the ORDER BY columns in the select list for distinct queries, and diff --git a/activerecord/test/cases/adapters/postgresql/change_schema_test.rb b/activerecord/test/cases/adapters/postgresql/change_schema_test.rb index 6c1b29f7fe..5a9796887c 100644 --- a/activerecord/test/cases/adapters/postgresql/change_schema_test.rb +++ b/activerecord/test/cases/adapters/postgresql/change_schema_test.rb @@ -26,6 +26,13 @@ module ActiveRecord connection.change_column :strings, :somedate, :timestamp, cast_as: :timestamp assert_equal :datetime, connection.columns(:strings).find { |c| c.name == 'somedate' }.type end + + def test_change_type_with_array + connection.change_column :strings, :somedate, :timestamp, array: true, cast_as: :timestamp + column = connection.columns(:strings).find { |c| c.name == 'somedate' } + assert_equal :datetime, column.type + assert column.array? + end end end end |