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allow types to be passed in for USING casts

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This allows us so abstract the migration from the type that is actually
used by Rails.  For example, ":string" may be a varchar or something,
but the framework does that translation, and the app shouldn't need to
know.
This commit is contained in:
Aaron Patterson 2014-11-24 14:29:04 -08:00
parent 63963801c0
commit cdd90f39d7
1 changed files with 3 additions and 0 deletions
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activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
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@ -435,6 +435,9 @@ module ActiveRecord
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])})"
end
execute sql
change_column_default(table_name, column_name, options[:default]) if options_include_default?(options)